Ecological Niches
Ecological Niches
An ecological niche describes the environmental conditions, resources, interactions, and ecological functions that allow an organism or population to survive and reproduce. Modern niche theory treats niches as multidimensional rather than simply as the physical places where organisms live. Temperature, moisture, food, habitat structure, competitors, predators, pathogens, mutualists, behavior, and other factors can all contribute to defining a species' niche.
Research on ecological niches connects many major areas of ecology and evolutionary biology. Niche theory is used to investigate why species coexist, why some organisms are specialists while others are generalists, how competition affects resource use, how ecological characteristics evolve, and how species respond to environmental change. Ecological niche models also provide tools for predicting species distributions and identifying habitats that may become more or less suitable as climates change.
Fundamental and Realized Niches
A useful distinction in ecology is between the fundamental niche and the realized niche. The fundamental niche represents environmental conditions under which a species could potentially persist based on its physiological and ecological requirements. The realized niche describes the conditions and resources actually occupied when competition, predation, dispersal, and other ecological processes are considered.
Although the realized niche is often described as a restricted portion of the fundamental niche, research indicates that the relationship can be more complicated. Species interactions can restrict resource use, but interactions, dispersal, environmental heterogeneity, and ecological opportunity can also produce patterns that do not fit a simple fundamental-niche-versus-realized-niche distinction.
Niches can also change during an organism's lifetime. Juveniles and adults may use different foods, habitats, or resources, creating ontogenetic niches. Likewise, individuals within the same population may differ substantially in their ecological behavior.
Niche Breadth, Specialists, and Generalists
Niche breadth describes the range of environmental conditions or resources used by an organism. Species occupying relatively narrow ecological ranges are commonly described as specialists, while organisms capable of using a wider range of resources or environmental conditions are described as generalists.
This distinction is not always straightforward. A population that appears to be a generalist at the species level may consist of individuals that are individually specialized. Measurements of niche breadth can also vary according to whether researchers examine climate, diet, habitat, geography, behavior, or another ecological dimension.
Specialization can provide advantages when organisms are highly adapted to particular resources or environmental conditions. However, narrow niches may also make populations more vulnerable when those conditions disappear or rapidly change. Generalists may tolerate broader environmental variation, although broad resource use can involve ecological and evolutionary trade-offs.
Niche Partitioning and Species Coexistence
One of the central applications of niche theory is explaining how competing species coexist. Species using exactly the same limiting resources under identical conditions may experience strong competition. Ecological differentiation can reduce that competition.
Niche partitioning occurs when species divide ecological opportunities among themselves. They may use different foods, occupy different habitats, forage at different heights or depths, reproduce during different seasons, or become active at different times of the day.
Research documents spatial, temporal, trophic, climatic, and behavioral niche partitioning. Even relatively small differences in resource use can contribute to coexistence when those differences reduce direct competition.
Temporal partitioning provides an important example. Species occupying the same geographic area may reduce interactions by being active at different times of day or during different seasons. Similarly, predators occupying overlapping territories may specialize on different prey.
Niche Overlap, Competition, and Resource Use
Niche overlap measures the degree to which organisms use similar resources or environmental conditions. High niche overlap can indicate the potential for competition, although overlap alone does not establish that competition is occurring.
Competition can itself alter niches. Individuals may change habitats, diets, activity patterns, or other behaviors when competitors become more or less abundant. Consequently, realized niches can be dynamic rather than permanent characteristics of species.
Environmental heterogeneity further complicates these relationships. Different resources can become limiting in different locations or at different times, creating multiple ecological dimensions along which species can differentiate.
Individual variation is also important. Competition may occur both between species and among members of the same species, and changes in population density can cause individuals to expand or contract their resource use.
Niche Evolution, Adaptation, and Diversification
Ecological niches are products of evolutionary history as well as contemporary environmental conditions. Populations can evolve new ecological characteristics, while inherited physiological and behavioral traits can constrain which environments they are able to occupy.
Niche conservatism refers to the tendency of evolutionary lineages to retain ancestral ecological characteristics over time. Closely related species may therefore occupy similar climatic or environmental conditions.
Niche conservatism can influence geographic distributions and diversification. When environments change, populations may track familiar ecological conditions geographically rather than immediately evolving new tolerances. Geographic separation resulting from this process can contribute to evolutionary divergence.
Conversely, niche divergence can occur when populations adapt to different ecological conditions. Divergent resource use, environmental adaptation, and mating preferences can interact and potentially contribute to reproductive isolation and speciation.
Ecological Niches and Climate Change
Climate change has made ecological niche research increasingly important for conservation biology. Temperature and precipitation influence the geographic distributions of many species, and changing climatic conditions can shift the locations where suitable ecological conditions occur.
Species may respond by shifting their geographic ranges, changing elevation, altering seasonal activity, adapting to new conditions, or declining when suitable habitat becomes inaccessible.
Species with narrow climatic or thermal niches may face different risks than organisms capable of tolerating broad environmental conditions. However, niche breadth alone does not determine vulnerability. Dispersal ability, competition, habitat fragmentation, evolutionary capacity, and local environmental conditions can all influence responses.
Research also demonstrates that populations belonging to the same species may respond differently to climate change. Local ecological conditions can therefore produce uneven range shifts rather than uniform movement toward higher latitudes or elevations.
Ecological Niche Modeling and Species Distributions
Ecological niche models and species distribution models use observations of species occurrence together with environmental variables to estimate suitable ecological conditions and geographic distributions.
These models are widely used in conservation planning, climate-change research, invasion biology, and biogeography. They can help researchers identify potentially suitable habitat, estimate future range shifts, locate possible climate refugia, and identify gaps in protected-area networks.
Model predictions nevertheless depend heavily on assumptions, data quality, spatial scale, environmental variables, and the ecological processes represented. Climatic variables alone may fail to capture important influences such as soil, competition, food resources, dispersal, or habitat structure.
Models constructed at the species level may also conceal differences among populations or evolutionary lineages. Increasingly, researchers incorporate population-level variation, functional traits, physiology, genetics, and multiple environmental dimensions into niche models.
Niche Conservatism, Range Shifts, and Biological Invasions
Biological invasions provide natural experiments for examining whether ecological niches remain stable when species enter new regions.
Some introduced populations continue occupying climatic conditions similar to those found in their native ranges. Others display niche expansion, contraction, shifts, or incomplete occupation of potentially suitable environments.
Comparing native and introduced ranges can therefore help researchers investigate niche conservatism and ecological adaptation. These comparisons are also useful for predicting where invasive species might spread.
Range shifts caused by environmental change are similarly complex. Geographic movement can be constrained by dispersal barriers, habitat fragmentation, ecological interactions, and differences among local populations.
Individual, Behavioral, and Ontogenetic Niches
Species-level descriptions can conceal substantial ecological variation among individuals. Individuals belonging to the same population may consistently use different habitats, foods, or environmental conditions.
Such individual specialization means that a generalist population can sometimes consist of relatively specialized individuals. This variation can influence competition, population stability, and species coexistence.
Behavior also shapes niches. Learning and behavioral flexibility can influence which resources organisms recognize and exploit. Organisms may modify their habitat choices as ecological opportunities or competitive pressures change.
Ontogenetic changes add another dimension. As organisms grow, their body size, physiology, predators, and resource requirements may change, producing substantially different niches at different life stages.
Thermal and Climatic Niches
Temperature is a particularly important niche dimension. The thermal niche describes temperatures compatible with physiological performance, survival, and population persistence.
Observed distributions do not necessarily reveal the full fundamental thermal niche because organisms encounter unequal environmental opportunities and may be prevented from occupying otherwise suitable locations.
Mechanistic approaches attempt to connect physiology directly with environmental conditions. These approaches can improve understanding of range limits and provide additional information for predicting responses to climate change.
Climatic niches are related to, but not identical with, habitat niches. A species may tolerate a broad range of habitats while remaining restricted to comparatively narrow climatic conditions, or vice versa.
Trophic and Spatial Niche Partitioning
Food and space represent two major dimensions through which species partition ecological resources.
Trophic niche partitioning occurs when organisms specialize on different prey or food resources. Modern techniques, including stable-isotope analysis and DNA metabarcoding, allow researchers to detect dietary differences that may not be apparent from direct observation.
Spatial niche partitioning occurs when species use different portions of a landscape, habitat, vegetation layer, nesting area, or aquatic environment.
Spatial and trophic differences frequently interact with temporal partitioning. Species can therefore coexist through combinations of differences in where they live, what they eat, and when they are active.
Microbial and Biogeochemical Niches
Niche theory also applies to microorganisms. Microbial species can specialize on different substrates, chemical environments, metabolic pathways, and interactions with other organisms.
Microbial metabolism can itself generate ecological opportunities. By breaking down compounds and releasing metabolic products, microorganisms can create resources used by other species. Such cross-feeding can generate additional ecological niches within microbial communities.
Biogeochemical characteristics can similarly represent niche dimensions for plants and other organisms. Differences in elemental requirements, nutrient acquisition, and symbiotic relationships can contribute to ecological differentiation.
Niche Construction and Environmental Modification
Organisms do not merely adapt to environments; they can also modify them. Niche construction describes processes through which organisms alter environmental conditions and thereby change ecological and evolutionary pressures.
Environmental modification can influence the organisms performing it as well as other species. These effects can alter resource availability, habitat structure, competition, and natural selection.
Niche-construction theory therefore emphasizes feedback between organisms and environments rather than treating ecological conditions as entirely external forces.
Biodiversity, Community Assembly, and Niche Space
Niche theory is closely connected to explanations of biodiversity. Ecological communities can contain many species when organisms differentiate along multiple environmental and resource dimensions.
The concept of multidimensional niche space helps explain how apparently similar species can coexist. Differences involving food, habitat, climate, timing, behavior, physiology, predators, mutualists, and other factors can collectively produce ecological separation.
Community assembly nevertheless involves more than niches. Dispersal, historical events, environmental filtering, demographic stochasticity, and evolutionary relationships also influence which species occur together.
Modern community ecology therefore frequently examines the relative importance of deterministic niche processes and stochastic or dispersal-driven processes across different spatial and temporal scales.
Conservation Applications
Ecological niche research has important practical applications in biodiversity conservation.
Niche models can identify potential habitat for endangered species, reveal conservation gaps, estimate climate refugia, and predict areas where suitable environmental conditions may persist. Understanding niche breadth can also help identify species or populations potentially vulnerable to rapid environmental change.
Conservation applications increasingly recognize that ecological variation exists below the species level. Different populations may possess different environmental tolerances, habitat requirements, or degrees of specialization.
Protecting ecological diversity within species may consequently be important for preserving their capacity to survive environmental change.
Conclusion
Ecological niche theory provides a framework for understanding how organisms interact with their environments and with one another. Rather than representing a single habitat or resource, a niche can encompass numerous dimensions involving climate, food, space, behavior, physiology, competitors, predators, mutualists, and evolutionary history.
Research on niche breadth, specialization, niche overlap, resource partitioning, and individual variation helps explain how biodiversity is maintained and why ecologically similar species can coexist. Evolutionary research further demonstrates that niches can be conserved, modified, expanded, or differentiated over time.
Climate change, biological invasions, and habitat alteration have given niche research additional practical importance. Ecological niche and species-distribution models are increasingly used to anticipate changes in species ranges and guide conservation planning. At the same time, the complexity documented across the research literature emphasizes that niches are dynamic, multidimensional, scale-dependent, and shaped by interactions among ecological and evolutionary processes.
Ecological Niche Theory and Core Concepts
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2026.1840154/full | A. K. Rowe et al. | Frontiers in Ecology and Evolution | 2026] Multidimensional Spatial Niche Differentiation Promotes Species Coexistence — Examines how species partition multiple spatial dimensions and how niche differentiation can reduce competition within diverse ecological communities.
[https://academic.oup.com/aob/advance-article/doi/10.1093/aob/mcag006/8424044 | L. Baldaszti et al. | Annals of Botany | 2026] No Evidence for the Niche Breadth–Range Size Hypothesis in Two Megadiverse Tropical Plant Genera — Tests whether species with broad climatic niches necessarily occupy larger geographic ranges and finds that spatial effects can complicate this relationship.
[https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1014265 | R. Niimi et al. | PLOS Computational Biology | 2026] Population Dynamics of Generalist and Specialist Strategies — Models how ecological specialization, environmental variation, and competition affect the persistence of specialists and generalists.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0345256 | F. Mercado Malabet et al. | PLOS ONE | 2026] Differentiation of Ecological Niche Patterns Between Sympatric Species — Investigates whether closely related species differ in ecological specialization and how narrower niches may influence vulnerability to habitat change.
[https://academic.oup.com/jeb/article/39/4/460/8402897 | J. A. Draghi et al. | Journal of Evolutionary Biology | 2026] Evolutionary Rescue by Adaptive Specialization in Rapidly Changing Environments — Explores how niche breadth and specialization influence evolutionary responses to heterogeneous and changing environments.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC12314190/ | C. Reyes-Puig et al. | Ecology and Evolution | 2025] Niche Differences in Coexisting Species: Ecological Insights — Shows how spatial, dietary, and other niche differences can permit ecologically similar species to coexist rather than competitively exclude one another.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC12415254/ | M. Lu et al. | Ecology and Evolution | 2025] A Theoretical Framework for Scaling Ecological Niches — Develops a framework for understanding how ecological niches and their determinants change across spatial and organizational scales.
[https://www.annualreviews.org/content/journals/10.1146/annurev-ecolsys-102723-044137 | M. A. McPeek | Annual Review of Ecology, Evolution, and Systematics | 2025] The Evolutionary Ecology of Species Interactions — Reviews how resource use, predators, competitors, pathogens, and mutualists simultaneously shape species niches and community assembly.
[https://academic.oup.com/bioscience/article/72/6/538/6581356 | R. Trappes et al. | BioScience | 2022] How Individualized Niches Arise: Defining Mechanisms of Niche Construction, Niche Choice, and Niche Conformance — Extends niche theory from species and populations to individual organisms and explains how individualized realized niches develop.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC9303431/ | D. P. Bebber et al. | Global Ecology and Biogeography | 2022] Specialists, Generalists and the Shape of the Ecological Niche — Examines how the concepts of ecological specialist and generalist depend on the way niche dimensions and environmental responses are measured.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC5389801/ | J. Soberón and B. Arroyo-Peña | PeerJ | 2017] Are Fundamental Niches Larger Than the Realized? Testing a 50-Year-Old Prediction — Evaluates the common assumption that competition and other ecological constraints always make a species’ realized niche smaller than its fundamental niche.
[https://www.annualreviews.org/doi/10.1146/annurev-ecolsys-110316-023003 | J. P. Sexton et al. | Annual Review of Ecology, Evolution, and Systematics | 2017] Evolution of Ecological Niche Breadth — Reviews why some organisms evolve broad ecological tolerances while others become specialists restricted to comparatively narrow environmental conditions.
[https://royalsocietypublishing.org/rspb/article/274/1606/19/76411/Learning-the-ecological-niche | K. N. Laland and colleagues | Proceedings of the Royal Society B | 2007] Learning the Ecological Niche — Examines the role of learning and behavioral flexibility in determining how organisms interact with resources and environments.
[https://www.annualreviews.org/doi/10.1146/annurev.ecolsys.36.102803.095431 | J. J. Wiens and C. H. Graham | Annual Review of Ecology, Evolution, and Systematics | 2005] Niche Conservatism: Integrating Evolution, Ecology, and Conservation Biology — Provides a major synthesis of the tendency for evolutionary lineages to retain ancestral ecological characteristics.
[https://www.annualreviews.org/content/journals/10.1146/annurev.es.15.110184.002141 | E. E. Werner and J. F. Gilliam | Annual Review of Ecology and Systematics | 1984] The Ontogenetic Niche and Species Interactions in Size-Structured Populations — Demonstrates that an organism’s ecological niche can change profoundly as it grows, altering competition and predator-prey relationships.
[https://www.annualreviews.org/content/journals/10.1146/annurev.es.03.110172.000543 | J. H. Vandermeer | Annual Review of Ecology and Systematics | 1972] Niche Theory — Reviews early mathematical and conceptual approaches to ecological niches, competition, resource utilization, and species coexistence.
Niche Breadth, Specialists, and Generalists
[https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2026.1749810/full | B. Fu et al. | Frontiers in Plant Science | 2026] Niche Breadth and Niche Overlap of Typical Plant Species — Identifies broad-niche generalists and narrow-niche specialists in an environmentally heterogeneous alpine ecosystem and relates differentiation to coexistence.
[https://academic.oup.com/auk/article/143/2/1/8445290 | Y. Morales-Góngora et al. | Ornithology | 2026] Realized Environmental Niche Varies by Biological Level in a Migratory Species — Demonstrates that niche breadth measured for individuals can differ substantially from patterns inferred for entire populations or species.
[https://www.sciencedirect.com/science/article/pii/S0304380024004009 | S. A. Cushman et al. | Ecological Modelling | 2025] A Generalist Species of Highly Specialized Individuals? — Examines how a population classified as an ecological generalist can nevertheless consist of individuals occupying much narrower niches.
[https://academic.oup.com/jeb/article/38/7/1016/8159003 | K. Ghali et al. | Journal of Evolutionary Biology | 2025] Ecological Specialization, Clonal Diversity, and Local Adaptation — Uses host-plant performance to investigate ecological niche breadth and differences in specialization among reproductive strategies.
[https://academic.oup.com/ismej/article/18/1/wrae183/7777692 | C. Gubry-Rangin et al. | The ISME Journal | 2024] Niche Breadth Specialization Impacts Ecological and Evolutionary Adaptation Following Environmental Change — Shows how microbial specialists and generalists differ in their responses to environmental disturbance and extreme conditions.
[https://www.nature.com/articles/s41559-023-02027-7 | F. A. B. von Meijenfeldt et al. | Nature Ecology & Evolution | 2023] A Social Niche Breadth Score Reveals Niche Range Strategies of Generalists and Specialists — Develops a method for quantifying microbial niche breadth and distinguishing ecological generalists from specialists.
[https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1010302 | C. Song et al. | PLOS Computational Biology | 2022] Generalism Drives Abundance: A Computational Causal Discovery Approach — Investigates whether occupying a broad ecological niche contributes causally to greater species abundance.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0228573 | A. Ainsworth et al. | PLOS ONE | 2020] Classifying Hawaiian Plant Species Along a Habitat Generalist-Specialist Continuum — Develops quantitative approaches for distinguishing habitat specialists from generalists for biodiversity conservation.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC6532515/ | R. Costa-Pereira et al. | Proceedings of the Royal Society B | 2019] Competition and Resource Breadth Shape Niche Variation and Overlap in Multiple Trophic Dimensions — Shows how competition and resource availability influence both population niche breadth and differences among individuals.
[https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2656.13073 | L. Harmáčková et al. | Journal of Animal Ecology | 2019] Specialization and Niche Overlap Across Spatial Scales — Examines how ecological specialization and resource partitioning vary depending on the spatial scale used to define a niche.
[https://royalsocietypublishing.org/rspb/article/285/1893/20182603/84845/Principles-of-niche-expansionPrinciples-of-niche | A. I. Pastore et al. | Proceedings of the Royal Society B | 2018] Principles of Niche Expansion — Examines how changes in niche position and niche width allow populations to exploit a broader range of ecological conditions.
[https://academic.oup.com/icb/article/42/2/265/652643 | L. A. Ferry-Graham, D. I. Bolnick and P. C. Wainwright | Integrative and Comparative Biology | 2002] Using Functional Morphology to Examine the Ecology and Evolution of Specialization — Connects feeding morphology, performance trade-offs, fundamental niches, and realized ecological specialization.
[https://doi.org/10.1086/282379 | L. Van Valen | The American Naturalist | 1965] Morphological Variation and Width of Ecological Niche — A classic examination of relationships between morphological variation and ecological niche width that influenced later studies of specialization.
Niche Partitioning and Species Coexistence
[https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2656.70173 | D. Dymit et al. | Journal of Animal Ecology | 2026] Niche Partitioning Among Neotropical Felids — Finds that differences in prey selection can provide an important mechanism allowing similar carnivores to coexist.
[https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2025.1539136/full | S. Yang et al. | Frontiers in Plant Science | 2025] Niche Partitioning and Trait Tradeoff Strategies Enable Plants to Coexist — Examines temporal and spatial resource partitioning and trait trade-offs within species-rich wetland vegetation.
[https://www.mdpi.com/1424-2818/17/7/460 | P. Zhou et al. | Diversity | 2025] Temporal Niche Partitioning as a Coexistence Mechanism — Finds that separating ecological activity through time can permit species to coexist even where considerable spatial niche overlap remains.
[https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2656.70115 | H. X. Zou et al. | Journal of Animal Ecology | 2025] Temporal Niche Partitioning: Mechanism of Coexistence or Consequence of Competition? — Evaluates when differences in timing actually stabilize coexistence rather than merely correlate with species occurrence.
[https://www.nature.com/articles/s41598-024-61463-y | Multiple Authors | Scientific Reports | 2024] Temporal Niche Partitioning Among Sympatric Wild and Domestic Ungulates — Shows how differences in daily and seasonal activity can reduce ecological overlap among mammals sharing landscapes.
[https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2024.1443357/full | N. D. Cook et al. | Frontiers in Marine Science | 2024] Temporal Niche Partitioning as a Potential Mechanism for Shark Coexistence — Investigates whether differences in activity timing reduce competition among shark species occupying the same marine environment.
[https://www.nature.com/articles/s41598-024-78880-8 | Multiple Authors | Scientific Reports | 2024] Coexistence Mechanisms and Individual Trophic Niche Variation — Examines how trophic differentiation both among species and among individuals can contribute to coexistence.
[https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2656.13964 | M. A. Barbour et al. | Journal of Animal Ecology | 2023] Evolution of Ontogenetic Niches Promotes Species Coexistence — Demonstrates theoretically how species that shift diets during development can reduce competition and improve coexistence.
[https://www.nature.com/articles/s41598-023-30809-3 | Multiple Authors | Scientific Reports | 2023] Ecological Niche Overlap in Arctic Vegetation Influenced by Seabird Colonies — Examines how nutrient enrichment alters plant niche segregation and overlap in nutrient-poor Arctic ecosystems.
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2022.863080/full | A. Salas-López et al. | Frontiers in Ecology and Evolution | 2022] Effects of Habitat and Competition on Niche Partitioning in Tropical Ant Communities — Finds that habitat filtering and niche partitioning jointly influence which ant species coexist locally.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC8222312/ | N. Tsafack et al. | Ecology and Evolution | 2021] Niche Overlap and Species Co-occurrence Patterns in Carabid Beetles — Tests relationships between shared niche space, environmental filtering, competition, and species co-occurrence.
[https://www.nature.com/articles/s41559-020-01383-y | A. I. Pastore et al. | Nature Ecology & Evolution | 2021] The Evolution of Niche Overlap and Competitive Differences — Explores how evolution can simultaneously alter ecological niche differences and competitive ability among coexisting species.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC7062080/ | M. Badali et al. | Royal Society Open Science | 2020] Effects of Niche Overlap on Coexistence, Fixation and Invasion — Uses mathematical models to investigate how increasingly overlapping ecological niches affect coexistence and competitive exclusion.
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2020.00243/full | J. C. Carvalho et al. | Frontiers in Ecology and Evolution | 2020] Decomposing the Causes for Niche Differentiation Between Species — Explores environmental, competitive, and evolutionary processes capable of producing niche divergence or expansion.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0225266 | A. Falcón-Brindis et al. | PLOS ONE | 2019] Disentangling the Coexistence Strategies of Mud-Daubing Wasps — Investigates spatial, temporal, and trophic niche partitioning as mechanisms allowing related species to occur together.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC5624504/ | B. Ashby et al. | Proceedings of the Royal Society B | 2017] Competing Species Leave Many Potential Niches Unfilled — Challenges the assumption that competitive evolution necessarily leads communities to fill all potentially available ecological niche space.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC4614473/ | J. A. Capitán et al. | Proceedings of the Royal Society B | 2015] How Similar Can Co-occurring Species Be in the Presence of Competition and Ecological Drift? — Examines the degree of niche similarity compatible with long-term species coexistence.
[https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2015.00866/full | F. Valladares et al. | Frontiers in Plant Science | 2015] Species Coexistence in a Changing World — Reviews classical and contemporary coexistence mechanisms, including niche differentiation, competition, facilitation, and environmental change.
[https://doi.org/10.1073/pnas.1036448100 | J. Fargione, C. S. Brown and D. Tilman | Proceedings of the National Academy of Sciences | 2003] Community Assembly and Invasion: An Experimental Test of Neutral Versus Niche Processes — Uses experimental plant communities to assess whether niche differentiation or neutral processes better explain community assembly.
[https://doi.org/10.1890/0012-9658(1981)062%5B0802:TORCTU%5D2.0.CO;2 | David Tilman | Ecology | 1981] Tests of Resource Competition Theory Using Four Species of Lake Michigan Algae — A classic experimental test showing how competition for limiting resources can determine species coexistence and niche differentiation.
Niche Overlap, Competition, and Resource Use
[https://www.nature.com/articles/s41598-025-29974-4 | Multiple Authors | Scientific Reports | 2025] Analysis of Ecological Niche and Interspecific Associations Among Dominant Species — Uses niche breadth and overlap measurements to investigate resource utilization and interspecific relationships in ecological communities.
[https://link.springer.com/article/10.1186/s40462-025-00559-0 | M. Říha et al. | Movement Ecology | 2025] Ecosystem, Spatial and Trophic Dimensions of Niche Overlap Between Freshwater Apex Predators — Compares spatial and dietary niche overlap between northern pike and European catfish across different aquatic environments.
[https://royalsocietypublishing.org/rspb/article/292/2050/20251146/234658/Eco-evolutionary-dynamics-between-multiple | Multiple Authors | Proceedings of the Royal Society B | 2025] Eco-evolutionary Dynamics Between Multiple Competitors — Tests predictions that competition drives species toward differentiated resource niches and influences community productivity.
[https://www.sciencedirect.com/science/article/abs/pii/S004896972403136X | X. Cabodevilla et al. | Science of the Total Environment | 2024] Dietary DNA Metabarcoding Reveals Trophic Niche Partitioning — Uses molecular dietary analysis to identify differences in resource use that reduce trophic competition among sympatric species.
[https://www.nature.com/articles/s44185-024-00049-3 | Multiple Authors | Nature Reviews Biodiversity | 2024] Explaining the Mechanisms Behind Niche Dimensionality and Light Competition — Examines how resource competition and the number of limiting niche dimensions influence biodiversity and species loss.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecm.1622 | A. Ascanio et al. | Ecological Monographs | 2024] New Theoretical and Analytical Framework for Quantifying Niche Differentiation — Provides tools for measuring ecological differentiation during community assembly and evolutionary divergence.
[https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2017.01242/full | E. G. de la Riva et al. | Frontiers in Plant Science | 2017] Biogeochemical and Ecomorphological Niche Segregation of Mediterranean Woody Species — Demonstrates that differences in elemental composition and functional traits can represent important niche dimensions permitting plant coexistence.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC5696386/ | R. Tarjuelo et al. | Scientific Reports | 2017] Intraspecific and Interspecific Competition Induces Density-Dependent Habitat Niche Shifts — Shows that animals can alter habitat use as competition changes, making the realized niche dynamic rather than fixed.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC4632615/ | A. Bar-Massada | PLOS ONE | 2015] Complex Relationships Between Species Niches and Environmental Heterogeneity — Investigates how niche breadth and niche overlap influence observed patterns of species co-occurrence.
Niche Evolution, Adaptation, and Diversification
[https://www.nature.com/articles/s41559-024-02344-5 | H. Qiao et al. | Nature Ecology & Evolution | 2024] Ecological Niche Conservatism Spurs Diversification in Response to Climate Change — Uses simulations to show how retaining ancestral ecological niches can promote lineage diversification as environments change.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC11137912/ | J. M. Nzei et al. | Ecology and Evolution | 2024] Climatic Niche Evolution and Niche Conservatism of Nymphaea — Examines the degree to which water-lily lineages have retained or changed their climatic niches during diversification.
[https://academic.oup.com/biolinnean/article/143/4/blae112/7929360 | V. J. Castillo-Chora et al. | Biological Journal of the Linnean Society | 2024] Ecological Niche Conservatism and Diversification in a Species Radiation — Investigates relationships between evolutionary diversification and retention of ancestral ecological conditions.
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1197920/full | T. W. Sherry | Frontiers in Ecology and Evolution | 2023] Niche Concept Scale in Space and Time: Evolutionary Processes and Ecological Coexistence — Connects local coexistence mechanisms with regional speciation, extinction, and ecological niche evolution.
[https://royalsocietypublishing.org/rspb/article/290/1996/20222524/79666/Niche-conservatism-and-ecological-change-during | Multiple Authors | Proceedings of the Royal Society B | 2023] Niche Conservatism and Ecological Change During Environmental Transformation — Examines whether organisms persist through environmental change by tracking existing niches or evolving into new ecological conditions.
[https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.9587 | K. Bai et al. | Ecology and Evolution | 2022] Biogeochemical Niche Conservatism Relates to Plant Diversification — Links elemental ecological niches to evolutionary diversification and life-form evolution in plants.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecy.3719 | N. Roura-Pascual et al. | Ecology | 2022] Biological Invasions Reveal How Niche Change Affects Geographic Expansion — Uses introduced species to test the assumption that ecological niches remain conserved when organisms colonize new regions.
[https://academic.oup.com/biolinnean/article/132/1/74/6024606 | J. Q. Richmond et al. | Biological Journal of the Linnean Society | 2021] Influence of Niche Breadth and Position on Historical Diversification — Examines how broad versus narrow niches and environmental position influence evolutionary diversification in island lizards.
[https://academic.oup.com/aob/article/121/6/1183/4837271 | P. Karunarathne et al. | Annals of Botany | 2018] Intraspecific Ecological Niche Divergence and Reproductive Isolation — Explores how ecological differences within a species can contribute to population divergence and potentially to speciation.
[https://royalsocietypublishing.org/rsfs/article/7/5/20160147/64175/Niche-construction-sources-of-selection-and-trait | K. N. Laland et al. | Interface Focus | 2017] Niche Construction, Sources of Selection and Trait Coevolution — Examines how organisms modify environments and thereby alter the selection pressures affecting themselves and other species.
[https://academic.oup.com/evolut/article/71/1/6/6725876 | J. W. Boughman et al. | Evolution | 2017] Synergistic Selection Between Ecological Niche and Mate Preference — Connects ecological niche divergence with mating preferences and explains how the two processes can jointly promote speciation.
[https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1890/0012-9658%282006%2987%5B29%3APAOTEO%5D2.0.CO%3B2 | J. H. Knouft et al. | Ecology | 2006] Phylogenetic Analysis of the Evolution of the Niche — Tests whether closely related species tend to retain more similar ecological niches than distantly related species.
Ecological Niches and Climate Change
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0343037 | A. D. Syphard et al. | PLOS ONE | 2026] Lessons Learned Using Species Distribution Models for Climate Adaptation — Applies ensemble niche models to California plant species and evaluates their usefulness for locating potential climate refugia.
[https://www.frontiersin.org/journals/climate/articles/10.3389/fclim.2025.1386632/full | H. C. Zamora-Maldonado et al. | Frontiers in Climate | 2025] Modeling Climate Change Impacts on the Potential Distribution of Bighorn Sheep — Uses ecological niche modeling to estimate how changing climate may alter future habitat suitability.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC11911025/ | M. Waheed et al. | Plants | 2025] From Ecological Niche to Conservation Planning — Uses ecological niche modeling to identify present and future suitable habitat and translate predictions into conservation priorities.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC12227795/ | W. Xu et al. | Frontiers in Plant Science | 2025] Advancements in Ecological Niche Models for Forest Species Under Climate Change — Reviews applications of niche modeling for predicting climate effects from individual populations through whole forest ecosystems.
[https://www.sciencedirect.com/science/article/pii/S0006320724000569 | A. M. Belfiore et al. | Biological Conservation | 2024] Supplementing Species Distribution Models for Conservation Planning — Evaluates ecological niche models as conservation tools and considers how supplementary ecological information can improve their usefulness.
[https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2024.1376213/full | B. Javeed et al. | Frontiers in Environmental Science | 2024] Ecological Niche Modelling: A Global Assessment — Reviews the expansion of ecological niche modeling and its applications to biodiversity, climate change, and species-distribution research.
[https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2024.1476097/full | W. Dong et al. | Frontiers in Marine Science | 2024] Comparative Analysis of Climate-Induced Habitat Shift in Marine Species — Uses niche-based distribution approaches to investigate potential marine range shifts under changing climatic conditions.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC10328137/ | J. Summers et al. | Ecology and Evolution | 2023] The Role of Climate Change and Niche Shifts in Divergent Range Dynamics — Uses ecological niche models to reconstruct habitat change and investigate why closely related populations or species exhibit different geographic responses.
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1086062/full | J. D. Carrell et al. | Frontiers in Ecology and Evolution | 2023] Multiscale Ecological Niche Modeling Exhibits Varying Climate-Change Impacts on Madrean Pine-Oak Trees — Shows that projected climatic effects on species niches depend strongly on the geographic scale at which models are constructed.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC8717329/ | P. Amarasinghe et al. | Ecology and Evolution | 2021] Niche Dynamics of Memecylon in Sri Lanka — Models current and future ecological niches of an endemic-rich tropical plant group under climate-change scenarios.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC2780938/ | J. A. Wiens et al. | Proceedings of the National Academy of Sciences | 2009] Niches, Models, and Climate Change — Discusses assumptions and limitations involved in using current ecological niches to predict species distributions under future climates.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0007921 | W. B. Monahan | PLOS ONE | 2009] A Mechanistic Niche Model for Measuring Species’ Distributional Responses to Seasonal Temperature Gradients — Distinguishes fundamental, potential, and realized niches when predicting geographical responses to climate.
Ecological Niche Modeling and Species Distributions
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2024.1364822/full | Z. Wu et al. | Frontiers in Ecology and Evolution | 2024] Lineage-Level Species Distribution Models to Assess Ecological Niches — Shows that modeling genetically or ecologically distinct lineages separately can improve predictions that species-level models may obscure.
[https://www.mdpi.com/2673-4834/5/4/50 | R. N. Vasconcelos et al. | Ecologies | 2024] Advances and Challenges in Species Ecological Niche Modeling — Reviews development of species-distribution and ecological-niche methods and their applications to conservation, invasion biology, and climate change.
[https://frodriguezsanchez.net/pdf/Smith-TREE-2019.pdf | A. B. Smith et al. | Trends in Ecology & Evolution | 2019] Niche Estimation Above and Below the Species Level — Reviews approaches that incorporate evolutionary relationships and population differences into ecological niche models.
[https://www.dora.lib4ri.ch/wsl/dload/wsl%3A21633/PDF/Zurell-2019-Ecological_niche_modelling-%28published_version%29.pdf | D. Zurell et al. | Encyclopedia of Ecology | 2019] Ecological Niche Modelling — Reviews the theory, data requirements, scale dependence, algorithms, validation, and interpretation of ecological niche models.
[https://scholarship.miami.edu/esploro/outputs/journalArticle/Do-Ecological-Niche-Models-Accurately-Identify/991031576246002976 | C. A. Searcy and H. B. Shaffer | American Naturalist | 2016] Do Ecological Niche Models Accurately Identify Climatic Determinants of Species Ranges? — Tests whether properly constructed niche models recover environmental variables known to constrain species distributions.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0120056 | L. Zhang et al. | PLOS ONE | 2015] The Effects of Niche Model Performance and Niche Properties on Climate-Change Projections — Examines how model quality and ecological niche characteristics affect forecasts of future species distributions.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0119891 | M. Fernández et al. | PLOS ONE | 2015] Ecological Niche Transferability Using Invasive Species as a Case Study — Tests whether ecological niches estimated in native ranges successfully predict distributions after species invade new regions.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1890/0012-9658%282006%2987%5B2433%3AEVOENM%5D2.0.CO%3B2 | A. T. Peterson et al. | Ecology | 2006] Experimental Verification of Ecological Niche Modeling — Provides an influential empirical examination of whether niche models can successfully predict species occurrences outside the data used to construct them.
Niche Conservatism, Range Shifts, and Biological Invasions
[https://pmc.ncbi.nlm.nih.gov/articles/PMC12706176/ | Z. Huang et al. | Ecology and Evolution | 2025] Ecological Niche Modeling Reveals Historical Population Dynamics — Combines niche modeling with historical or genetic evidence to reconstruct changes in suitable habitat and species distributions.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0338809 | J. X. Guo et al. | PLOS ONE | 2025] Dual Niche Modeling with Climate and Soil Variables — Shows how combining climatic and edaphic dimensions can reveal ecological dependencies that climate-only niche models may miss.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0197884 | I. Rounaghi et al. | PLOS ONE | 2018] Effects of Climate Change on Ecological Niche Shifts — Evaluates how altered temperature and precipitation may shift suitable habitat and geographic distributions for climate-sensitive reptiles.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0132103 | D. K. Gibson-Reinemer et al. | PLOS ONE | 2015] Inconsistent Range Shifts Within Species Highlight the Importance of Local Ecological Conditions — Shows that climatic warming does not necessarily produce uniform geographic range shifts because populations experience different ecological contexts.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1890/ES15-00053.1 | Multiple Authors | Ecosphere | 2015] Low Conservatism of the Climatic Niche of Sea Turtles — Tests whether climatic niche characteristics remain stable among related marine turtle lineages.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0054323 | P. Lemes and R. Loyola | PLOS ONE | 2013] Accommodating Species Climate-Forced Dispersal and Uncertainties in Spatial Conservation Planning — Integrates predicted niche shifts with conservation planning to identify areas that remain important as species ranges move.
[https://royalsocietypublishing.org/rstb/article/368/1610/20120091/22020/Are-species-responses-to-global-change-predicted | Multiple Authors | Philosophical Transactions of the Royal Society B | 2013] Are Species’ Responses to Global Change Predicted by Past Niche Evolution? — Links historical rates of habitat and trophic niche evolution with present ecological breadth and potential responsiveness to environmental change.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1890/ES10-00053.1 | Multiple Authors | Ecosphere | 2010] Decoupled Conservatism of Grinnellian and Eltonian Niches — Shows that environmental requirements and biotic or functional roles can evolve at different rates rather than behaving as a single ecological niche.
Individual, Behavioral, and Ontogenetic Niches
[https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2435.70088 | M. Si et al. | Functional Ecology | 2025] Individual Asymmetric Competition Responses Across Environmental Gradients — Demonstrates that individuals within the same population may respond differently to competitors, producing substantial within-species niche variation.
[https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2435.14646 | C. Reyes-Puig et al. | Functional Ecology | 2024] Is It All About Size? Functional Traits and Ecological Niche Segregation — Examines how morphology and functional traits contribute to niche separation and coexistence among closely related species.
[https://www.cb.iee.unibe.ch/unibe/portal/fak_naturwis/d_dbio/b_ioekev/abt_cb/content/e58879/e337551/e1171809/e1287921/Ausprey_JAniEco2022_eng.pdf | I. J. Ausprey et al. | Journal of Animal Ecology | 2022] Functional Response Traits and Altered Ecological Niches Drive Bird Community Changes — Links changes in agricultural environments with shifts in diet, environmental niche breadth, traits, and community composition.
[https://doi.org/10.1111/btp.12434 | R. Costa-Pereira et al. | Biotropica | 2017] Seasonal Population and Individual Niche Dynamics in a Tetra Fish — Shows that both population-wide resource use and individual specialization can shift seasonally as ecological opportunities change.
Microbial and Biogeochemical Niches
[https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1012320 | K. Guseva et al. | PLOS Computational Biology | 2024] Bacteria Face Trade-offs in the Decomposition of Complex Resources — Shows how microbial generalists and specialists can occupy different substrate niches and coexist under particular resource conditions.
[https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1006340 | M. San Roman and A. Wagner | PLOS Computational Biology | 2018] An Enormous Potential for Niche Construction Through Bacterial Cross-Feeding — Demonstrates theoretically how microbial metabolism can create thousands of potential ecological niches through resource modification and cross-feeding.
[https://www.annualreviews.org/content/journals/ecolsys/47/1 | Multiple Authors | Annual Review of Ecology, Evolution, and Systematics | 2016] The Mutualistic Niche and Ectomycorrhizal Symbiosis — Develops the idea that beneficial microbial partnerships can enlarge or reshape plant niches rather than ecological interactions only restricting them.
Niche Construction and Environmental Modification
[https://royalsocietypublishing.org/rstb/article/379/1893/20220431/109368/Social-ecological-niche-construction-for | Multiple Authors | Philosophical Transactions of the Royal Society B | 2023] Social-Ecological Niche Construction for Sustainability — Applies niche-construction theory to human modification of ecological and social environments and its long-term evolutionary consequences.
[https://royalsocietypublishing.org/rsfs/article/7/5/20160157/64143/Why-developmental-niche-construction-is-not | Multiple Authors | Interface Focus | 2017] Why Developmental Niche Construction Is Not Selective Niche Construction — Clarifies different meanings of niche construction and distinguishes ecological environmental modification from developmental processes.
Biodiversity, Community Assembly, and Niche Space
[https://www.nature.com/articles/s41586-023-06161-x | Multiple Authors | Nature | 2023] Unveiling the Transition From Niche to Dispersal Assembly in Ecology — Investigates when ecological filtering and species niches dominate community assembly and when dispersal processes become more important.
[https://www.nature.com/articles/s41467-018-06732-x | Multiple Authors | Nature Communications | 2018] The Dimensionality of Niche Space Allows Bounded and Unbounded Biodiversity — Examines whether ecological niche space imposes a finite limit on species diversity or whether additional niche dimensions allow continuing diversification.
[https://royalsocietypublishing.org/rstb/article/366/1576/2351/21612/Disentangling-the-importance-of-ecological-niches | Multiple Authors | Philosophical Transactions of the Royal Society B | 2011] Disentangling the Importance of Ecological Niches From Stochastic Processes Across Scales — Examines the relative roles of species-specific ecological requirements and stochastic processes in generating biodiversity patterns.
=== Fundamental and Realized Niches: Educational and Reference Sources
=
[https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6%3Aecology-and-natural-systems/x230b3ff252126bb6%3Aan-organisms-niche/a/organism-niche | Khan Academy | Khan Academy | Current] An Organism’s Niche — Explains fundamental and realized niches, abiotic tolerance limits, species interactions, and how an organism’s niche can change during its life cycle.
[https://www.britishecologicalsociety.org/what-is-ecology/ | British Ecological Society | British Ecological Society | Current] What Is Ecology? — Provides an accessible overview of how ecologists study relationships among organisms, environments, resources, and ecological interactions across biological scales.
[https://www.biologyonline.com/dictionary/ecological-niche | Biology Online | Biology Online | 2022] Ecological Niche — Reviews the historical development of the niche concept from habitat-centered definitions to functional and multidimensional interpretations.
[https://openstax.org/books/concepts-biology/pages/19-4-community-ecology | OpenStax | Concepts of Biology | 2013] Community Ecology — Introduces ecological niches, resource competition, competitive exclusion, and the role niche differentiation plays in allowing species to coexist.
Additional Applications of Ecological Niche Theory
[https://royalsocietypublishing.org/rspb/article/292/2051/20241679/234646/Effects-of-phylogenetic-distance-niche-overlap-and | Multiple Authors | Proceedings of the Royal Society B | 2025] Effects of Phylogenetic Distance, Niche Overlap and Habitat Disturbance — Examines how evolutionary relatedness, dietary niche overlap, and human activity jointly influence species interactions.
[https://www.nature.com/articles/s41598-023-48204-3 | Multiple Authors | Scientific Reports | 2023] Local Niches Explain Coexistence in Environmentally Distinct Contact Zones — Uses environmental niche analysis to explain how species that come into geographic contact can persist together through local ecological differentiation.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecs2.1658 | Multiple Authors | Ecosphere | 2017] Environmental Niche Models for Riverine Desert Fishes — Compares environmental niches with functional traits and evolutionary relationships to understand patterns of fish distribution.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1890/13-0064.1 | Multiple Authors | Ecology | 2014] How Do Habitat Filtering and Niche Conservatism Affect Community Assembly? — Models how environmental filtering and evolutionary conservation of ecological traits jointly shape which species occur together.
[https://gala.gre.ac.uk/id/eprint/19194/7/19194%20BUCHI_Coexistence_of_Specialist_and_Generalist_Species_2014.pdf | L. Büchi and S. Vuilleumier | Theoretical Ecology | 2014] Coexistence of Specialist and Generalist Species — Uses theoretical models to identify ecological circumstances in which species with different niche breadths can persist together.
[https://www.nature.com/articles/ncomms3102 | Multiple Authors | Nature Communications | 2013] Temporal Niche Promotes Biodiversity During Adaptive Radiation — Demonstrates how differentiation along the temporal dimension of ecological niche space can contribute to diversification and species coexistence.
[https://royalsocietypublishing.org/rsbl/article/9/1/20120637/49351/Ecological-niche-structure-and-rangewide-abundance | Multiple Authors | Biology Letters | 2013] Ecological Niche Structure and Rangewide Abundance Patterns — Connects niche modeling with population abundance to investigate whether environmental suitability helps explain variation in abundance across species ranges.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0033506 | E. D. Barkae et al. | PLOS ONE | 2012] A Positive Association Between Habitat Niche Breadth and Geographic Range — Examines relationships between specialization, habitat niche breadth, and distribution while emphasizing the multidimensional character of ecological niches.
[https://iboulangeat.github.io/pdfs/Boulangeat2012_JBI_published.pdf | I. Boulangeat et al. | Journal of Biogeography | 2012] Niche Breadth, Rarity and Ecological Characteristics Within a Regional Flora — Investigates whether ecological specialists with narrow niches are disproportionately rare and potentially more vulnerable to environmental change.
[https://arxiv.org/abs/math/0610227 | N. Lanchier and C. Neuhauser | The Annals of Applied Probability | 2006] A Spatially Explicit Model for Competition Among Specialists and Generalists in a Heterogeneous Environment — Shows how habitat patchiness and spatial structure can change the competitive balance between narrow-niche specialists and broad-niche generalists.
[https://doi.org/10.1086/382186 | M. Egas, U. Dieckmann and M. W. Sabelis | The American Naturalist | 2004] Evolution Restricts the Coexistence of Specialists and Generalists: The Role of Trade-Off Structure — Demonstrates theoretically how ecological trade-offs influence the evolution and coexistence of generalist and specialist strategies.
[https://doi.org/10.1146/annurev.es.19.110188.001231 | D. J. Futuyma and G. Moreno | Annual Review of Ecology and Systematics | 1988] The Evolution of Ecological Specialization — A classic review of the ecological and evolutionary processes that cause organisms to become specialists and the consequences of narrow niche breadth.
Recent Ecological Niche Research
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2026.1741299/full | Qun Yu et al. | Frontiers in Ecology and Evolution | 2026] Applying Niche Theory to Endangered Plant Conservation — Uses variation in niche breadth within the endangered Rosa anemoniflora to identify habitat conditions and conservation strategies appropriate for different populations.
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2026.1774597/full | G. Li et al. | Frontiers in Ecology and Evolution | 2026] Habitat Suitability Evaluation and Protection Gap Analysis — Applies ecological niche and species-distribution modeling to identify suitable habitat and conservation gaps for a threatened species.
[https://link.springer.com/article/10.1007/s13364-025-00831-z | M. Granata et al. | Mammal Research | 2026] Habitat Suitability and Niche Comparison of Sympatric Weasels — Compares the environmental niches of stoats, least weasels, and European polecats to understand habitat partitioning among similar carnivores.
[https://link.springer.com/article/10.1186/s12862-026-02491-2 | M. Behroozian et al. | BMC Ecology and Evolution | 2026] Ecological Niche Divergence and Specialization in Dianthus — Uses environmental niche analysis to investigate ecological differentiation among closely related plant taxa and its relevance to species boundaries.
[https://link.springer.com/article/10.1186/s13717-026-00731-3 | G. Ferraz et al. | Environmental Systems Research | 2026] Seasonal Variations in Niche Partitioning — Examines how seasonal environmental changes alter resource partitioning and coexistence among ecologically similar species.
[https://link.springer.com/article/10.1186/s12862-026-02510-2 | S. He et al. | BMC Ecology and Evolution | 2026] Niche and Interspecific Associations of Dominant Plant Species — Measures niche breadth, niche overlap, and species associations to evaluate community structure and stability.
[https://link.springer.com/article/10.1007/s10641-026-01860-6 | A. H. Lambert et al. | Environmental Biology of Fishes | 2026] Ecological Niche Overlap Between Brook Trout and Fallfish — Compares spatial, dietary, and isotopic niches to determine whether resource competition may contribute to native brook trout decline.
[https://link.springer.com/article/10.1186/s12870-026-08415-y | Z. Wang et al. | BMC Plant Biology | 2026] Invasion of Old World Tamarix Species — Uses ecological niche models to compare native and introduced climatic niches of invasive tamarisk species.
[https://www.mdpi.com/2071-1050/18/5/2608 | P. Chen et al. | Sustainability | 2026] Ecological Niches, Interspecific Associations, and Species Relationships — Measures niche breadth and overlap to characterize resource use and interactions within a plant community.
| H. Ao et al. | Plants | 2026 Niche, Interspecific Association and Community Stability — Combines niche breadth, overlap, species associations, and community stability metrics to investigate plant coexistence.
Niche Breadth and Environmental Specialization
[https://www.nature.com/articles/s41467-025-58815-1 | J. F. M. Rodrigues et al. | Nature Communications | 2025] The Global Determinants of Climate Niche Breadth in Birds — Uses global bird distributions to identify geographic, climatic, and biological factors associated with broad versus narrow climatic niches.
[https://www.nature.com/articles/s42003-025-07948-6 | M. Milchram et al. | Communications Biology | 2025] How Individual Variation Shapes Ecological Niches in Two Bat Species — Demonstrates how differences among individuals contribute to population niche width and interspecific niche partitioning.
[https://www.nature.com/articles/s41598-025-09965-1 | Q. Qi et al. | Scientific Reports | 2025] Spatial Niche Differentiation and Its Environmental Drivers — Quantifies environmental niche breadth and differentiation among dominant benthic taxa.
[https://www.nature.com/articles/s41598-025-07784-y | L. Cui et al. | Scientific Reports | 2025] Comparing and Quantifying Ecological Niches of Native and Invasive Species — Examines niche overlap and differentiation to understand potential competition and invasion dynamics.
[https://www.nature.com/articles/s41598-025-13849-9 | R. L. Macêdo et al. | Scientific Reports | 2025] Contrasting Niche Dynamics During Biological Invasions — Shows that invasive populations can undergo different combinations of niche stability, expansion, and unfilling during colonization.
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2025.1690756/full | S. J. McInnes et al. | Frontiers in Ecology and Evolution | 2025] Fire as a Driver of Pyro-Thermal Niche Variation in Acacia — Treats fire temperature as an ecological niche dimension influencing seed germination and species persistence in fire-prone environments.
[https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2025.1676177/full | C. Hou et al. | Frontiers in Ecology and Evolution | 2025] Climate-Driven Redistribution of Essential-Oil Chemotypes — Compares ecological niches of different plant chemotypes and predicts how warming may redistribute them geographically.
[https://www.mdpi.com/1999-4907/16/8/1331 | S. K. Lee et al. | Forests | 2025] Climate Change Alters Ecological Niches and Distribution Patterns — Evaluates niche breadth and overlap while projecting future shifts in habitat suitability.
[https://www.mdpi.com/1999-4907/16/9/1485 | B. J. Park et al. | Forests | 2025] Species Composition and Ecological Niche Overlap — Uses niche breadth and overlap indices to identify patterns of resource sharing and differentiation within forest vegetation.
[https://www.mdpi.com/2223-7747/14/4/505 | T. Pang et al. | Plants | 2025] Why Is Tree Diversity Different Between Lowland and Montane Rainforests? — Links contrasting patterns of species diversity to differences in niche overlap and resource partitioning.
Individual Specialization and Intraspecific Niches
[https://pmc.ncbi.nlm.nih.gov/articles/PMC10944703/ | S. Castaño-Quintero et al. | Ecology and Evolution | 2024] Niche Position and Niche Breadth Effects on Population Abundance — Tests relationships among environmental niche position, niche breadth, geographic occurrence, and abundance.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC10880136/ | E. Arlé et al. | Ecology and Evolution | 2024] The Cumulative Niche Approach — Introduces a framework for determining whether available occurrence data adequately capture a species’ ecological niche breadth.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecy.4296 | A. Barrero et al. | Ecology | 2024] Increased Density of Conspecifics Caused Niche Contraction — Provides evidence that competition within a species can reduce individual habitat niche breadth.
[https://royalsocietypublishing.org/rspb/article/287/1918/20192211/85411/My-niche-individual-spatial-niche-specialization | Multiple Authors | Proceedings of the Royal Society B | 2020] My Niche: Individual Spatial Niche Specialization — Shows that individuals within a species can consistently occupy different portions of available habitat, affecting both within- and between-species interactions.
[https://royalsocietypublishing.org/rspb/article/287/1919/20192436/85439/Habitat-heterogeneity-mediates-effects-of | Multiple Authors | Proceedings of the Royal Society B | 2020] Habitat Heterogeneity Mediates Effects of Individual Variation on Coexistence — Explores when intraspecific niche variation promotes or inhibits coexistence between competing species.
[https://royalsocietypublishing.org/rspb/article/286/1902/20190369/85052/Competition-and-resource-breadth-shape-niche | R. Costa-Pereira et al. | Proceedings of the Royal Society B | 2019] Competition and Resource Breadth Shape Individual Niche Variation — Demonstrates how ecological opportunity and competition jointly influence individual specialization.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC6467861/ | J. J. Derbridge et al. | Ecology and Evolution | 2019] Experimental Removals Reveal Dietary Niche Partitioning — Uses competitor removal experiments to determine how interspecific competition alters dietary niche use.
[https://royalsocietypublishing.org/rsos/article/4/3/170060/93247/Niche-partitioning-and-the-role-of-intraspecific | C. S. Cloyed | Royal Society Open Science | 2017] Niche Partitioning and Intraspecific Niche Variation — Demonstrates that trophic level and foraging habitat can partition niches both within and among species.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC4971195/ | X. Hua et al. | Scientific Reports | 2016] Seasonality, Thermal Niche Breadth and Geographic Range — Investigates whether seasonal environments promote broader thermal niches and larger species distributions.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0051488 | M. J. L. Peers et al. | PLOS ONE | 2012] Resource Gradient Selection by Canada Lynx and Bobcat — Compares habitat-resource selection to understand ecological specialization and niche breadth in two sympatric carnivores.
Thermal and Climatic Niches
[https://pmc.ncbi.nlm.nih.gov/articles/PMC11374413/ | M. W. Simon et al. | Proceedings of the Royal Society B | 2024] Predicting the Fundamental Thermal Niche of Ectotherms — Develops a mechanistic framework for predicting temperatures that permit population persistence rather than simply observed occurrence.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC10867506/ | S. V. Ivanova et al. | Ecology and Evolution | 2024] Realized Thermal Niche Approach Eliminates Temperature Bias — Develops methods for estimating thermal niches while accounting for unequal environmental temperature availability.
[https://www.annualreviews.org/content/journals/10.1146/annurev-ecolsys-102722-123834 | I-Ching Chen et al. | Annual Review of Ecology, Evolution, and Systematics | 2024] Niche Theory and Species Range Limits Along Elevational Gradients — Reviews climatic tolerance, biotic interactions, adaptation, and dispersal as explanations for elevational range boundaries.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0032819 | J.-Y. Barnagaud et al. | PLOS ONE | 2012] Relating Habitat and Climatic Niches in Birds — Tests whether species that tolerate a broad range of habitats also occupy broad climatic niches.
[https://doi.org/10.1111/j.1461-0248.2009.01391.x | M. B. Araújo and A. T. Peterson | Ecology Letters | 2012] Uses and Misuses of Bioclimatic Envelope Modeling — Discusses assumptions behind climatic-niche models and how inappropriate interpretation can distort forecasts.
[https://doi.org/10.1111/j.1461-0248.2010.01572.x | M. B. Araújo et al. | Ecology Letters | 2011] Climate Change Threatens European Conservation Areas — Uses climatic niche projections to investigate whether protected areas will continue supporting species under warming.
[https://doi.org/10.1098/rspb.2010.1298 | M. B. Araújo et al. | Proceedings of the Royal Society B | 2011] Climate Change, Species Range Shifts and Thermal Niches — Examines whether physiological tolerances can explain broad-scale geographic responses to climate.
[https://doi.org/10.1111/j.1461-0248.2009.01315.x | D. F. Sax et al. | Ecology Letters | 2009] Ecological and Evolutionary Insights From Species Range Limits — Reviews environmental tolerance, interactions, dispersal, and evolution at the edges of ecological niches.
[https://doi.org/10.1111/j.1461-0248.2006.00908.x | M. B. Araújo and R. G. Pearson | Ecology Letters | 2006] Equilibrium of Species’ Distributions With Climate — Tests a major assumption of climatic niche models: that present ranges approximately track suitable climate.
[https://doi.org/10.1086/319929 | M. Kearney and W. Porter | The American Naturalist | 2004] Mapping the Fundamental Niche: Physiology, Climate, and Species Distribution — Demonstrates how physiological traits can be combined with environmental data to estimate fundamental niche boundaries.
Trophic and Spatial Niche Partitioning
[https://pmc.ncbi.nlm.nih.gov/articles/PMC12256565/ | F. Wu et al. | Ecology and Evolution | 2025] Temporal, Spatial and Prey Niche Partitioning Reveals Coexistence Mechanisms — Separates niche use into time, space, and diet to determine how related species reduce competition.
[https://www.nature.com/articles/s41598-025-07856-z | S. Y. Lee et al. | Scientific Reports | 2025] Trophic Niche Partitioning Among Three Sympatric Anurans — Examines differences in diet and prey use as mechanisms allowing closely related frogs to coexist.
[https://www.nature.com/articles/s41598-025-06205-4 | K. Cieślińska et al. | Scientific Reports | 2025] Nesting Niche Partitioning Between Sympatric Terns — Shows that bird species with similar nesting requirements can reduce competition through spatial and temporal segregation.
[https://www.mdpi.com/1999-4907/16/8/1360 | W. Zhang et al. | Forests | 2025] Niche Differentiation and Habitat Use of Sympatric Squirrels — Compares spatial and temporal activity patterns of three squirrel species occupying the same forest.
[https://www.mdpi.com/2079-7737/14/11/1536 | C. Wang et al. | Biology | 2025] Spatio-Temporal Niche Differentiation of Alpine Musk Deer and Sympatric Mammals — Uses camera-trap data to identify spatial and temporal mechanisms reducing interspecific interactions.
[https://link.springer.com/article/10.1007/s11629-025-9617-0 | Min Cao et al. | Journal of Mountain Science | 2025] Moss Ecological Niches Regulate Interception of Potentially Toxic Elements — Links niche differentiation among moss species to differences in their capacity to retain contaminants.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC11550417/ | Y. Zhang et al. | Scientific Reports | 2024] Coexistence Mechanisms and Individual Trophic Niche Variation — Examines how between-species and within-species dietary differentiation influence coexistence.
[https://royalsocietypublishing.org/rspb/article/290/2005/20230467/79717/An-environmental-habitat-gradient-and-within | S. Ayebare et al. | Proceedings of the Royal Society B | 2023] Environmental Habitat Gradients and Within-Habitat Segregation — Shows how multidimensional habitat partitioning allows ecologically similar bird species to coexist.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC10038942/ | N. Arumoogum et al. | Ecology and Evolution | 2023] Anthropogenically Driven Spatial Niche Partitioning — Examines how human disturbance can reshape spatial segregation among coexisting large mammals.
[https://royalsocietypublishing.org/rspb/article/288/1954/20210816/113290/Temporal-niche-partitioning-as-a-novel-mechanism | K. O. Lear et al. | Proceedings of the Royal Society B | 2021] Temporal Niche Partitioning as a Coexistence Mechanism — Demonstrates how species using similar habitats and food resources can reduce competition by being active at different times.
Pollination and Mutualistic Niches
[https://www.journals.uchicago.edu/doi/full/10.1086/712831 | Fernanda S. Valdovinos and Robert Marsland III | The American Naturalist | 2021] Niche Theory for Mutualism — Extends resource-based niche theory to mutualistic plant-pollinator networks.
[https://peercommunityjournal.org/articles/10.24072/pcjournal.1/ | A. Magrach et al. | Peer Community Journal | 2021] Niche Complementarity Among Pollinators Increases Pollination — Shows that pollinator species differing in when and how they forage can collectively enhance reproductive services.
[https://www.sciencedirect.com/science/article/abs/pii/S1360138520300911 | R. D. Phillips et al. | Trends in Plant Science | 2020] Niche Perspectives on Plant-Pollinator Interactions — Develops the pollination niche concept and explains how pollinator assemblages influence plant coexistence, distributions, specialization, and speciation.
[https://doi.org/10.1111/1365-2745.12908 | G. Benadi and A. Pauw | Journal of Ecology | 2018] Frequency Dependence of Pollinator Visitation Rates Suggests Pollination Niches Can Allow Plant Coexistence — Provides empirical evidence that pollinator-mediated frequency dependence can stabilize plant communities.
[https://doi.org/10.1111/1365-2745.12683 | R. W. Bouman et al. | Journal of Ecology | 2017] The Role of the Pollination Niche in Community Assembly of Erica Species — Tests whether differentiation among pollinator assemblages helps explain coexistence in a species-rich plant community.
[https://royalsocietypublishing.org/rspb/article/282/1810/20150117/77750/Requirements-for-plant-coexistence-through | G. Benadi | Proceedings of the Royal Society B | 2015] Requirements for Plant Coexistence Through Pollination Niche Partitioning — Models conditions under which dependence on different pollinators can stabilize plant coexistence.
[https://doi.org/10.1111/ele.12170 | S. Song and M. W. Feldman | Ecology Letters | 2014] Adaptive Foraging by Pollinators and Ecological Specialization — Examines how behavioral changes in resource preference can alter niche overlap within mutualistic communities.
[https://www.sciencedirect.com/science/article/abs/pii/S0169534712001917 | A. Pauw | Trends in Ecology & Evolution | 2013] Can Pollination Niches Facilitate Plant Coexistence? — Argues that differentiation in pollinator use can function as an ecological niche axis contributing to plant diversity.
[https://doi.org/10.1086/671158 | G. Benadi et al. | The American Naturalist | 2013] When Can Plant-Pollinator Interactions Promote Plant Diversity? — Uses theory to determine when pollinator sharing promotes coexistence versus competitive exclusion.
[https://doi.org/10.1111/j.1461-0248.2009.01364.x | T. Fontaine et al. | Ecology Letters | 2009] Functional Diversity of Plant-Pollinator Interaction Webs — Shows how differences among pollinator functional groups create complementary ecological roles.
Microbial Niches and Environmental Filtering
[https://www.cell.com/trends/ecology-evolution/fulltext/S0169-5347%2823%2900120-9 | L. A. Malard et al. | Trends in Ecology & Evolution | 2023] Into the Microbial Niche — Proposes a metabolic framework for characterizing microbial niches and distinguishing generalists, specialists, and niche shifts.
[https://journals.asm.org/doi/10.1128/msystems.00080-19 | Multiple Authors | mSystems | 2019] Determining Microbial Niche Breadth in the Environment — Discusses how genomic and functional data can identify microbial generalists and specialists and distinguish fundamental from realized niches.
[https://doi.org/10.1038/s41396-018-0222-x | Multiple Authors | The ISME Journal | 2018] Habitat Specialists and Generalists in Microbial Community Assembly — Examines how environmental filtering selects microorganisms with different niche breadths.
[https://doi.org/10.1038/s41564-017-0079-8 | Multiple Authors | Nature Microbiology | 2018] Microbial Resource Partitioning Across Environmental Gradients — Demonstrates that microorganisms partition substrates and environmental conditions in ways analogous to plant and animal niches.
[https://doi.org/10.1038/ismej.2016.77 | A. Székely and S. Langenheder | The ISME Journal | 2017] Dispersal Timing and Microbial Community Assembly — Shows how niche selection interacts with colonization history to determine microbial community composition.
[https://www.nature.com/articles/srep37719 | C. Monard et al. | Scientific Reports | 2016] Habitat Generalists and Specialists in Microbial Communities — Identifies microbial taxa associated with broad versus narrow environmental conditions and explores their differing responses to disturbance.
[https://doi.org/10.1038/nrmicro3339 | S. Widder et al. | Nature Reviews Microbiology | 2016] Challenges in Microbial Ecology: Building Predictive Understanding — Reviews niche interactions, environmental filtering, community networks, and the challenge of predicting microbial assemblages.
[https://doi.org/10.1111/1462-2920.12559 | A. Barberán et al. | Environmental Microbiology | 2014] Why Are Some Microbes More Widely Distributed Than Others? — Relates environmental tolerance and ecological specialization to microbial geographic distributions.
[https://doi.org/10.1128/mBio.00630-12 | J. G. Caporaso et al. | mBio | 2012] Microbial Community Responses Across Environmental Gradients — Demonstrates strong environmental filtering of microbial niches across contrasting habitats.
[https://www.annualreviews.org/doi/10.1146/annurev-ecolsys-110411-160307 | E. K. Costello et al. | Annual Review of Ecology, Evolution, and Systematics | 2012] From Animalcules to an Ecosystem: Ecological Concepts and the Human Microbiome — Applies niche theory, neutral theory, succession, dispersal, and species interactions to host-associated microbial communities.
Community Assembly and Modern Coexistence Theory
[https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecs2.4495 | I. Sánchez González et al. | Ecosphere | 2023] Niche Specialization and Community Niche Space Increase With Species Richness — Finds that species-rich communities can contain more specialized species and more extensively partition available ecological niche space.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC10585123/ | G. C. Brooks et al. | Ecology and Evolution | 2023] Niche Partitioning and the Storage Effect Facilitate Coexistence — Demonstrates how differences in environmental responses can maintain competitors in temporally variable environments.
[https://www.annualreviews.org/eprint/FIIPM6HACKTDFCYVAVFK/full/10.1146/annurev-ecolsys-102220-024934 | Multiple Authors | Annual Review of Ecology, Evolution, and Systematics | 2022] Evolution and Community Assembly Across Spatial Scales — Reviews how evolutionary change, environmental filtering, dispersal, and ecological interactions jointly structure communities.
[https://www.nature.com/articles/s41467-020-17960-5 | Oscar Godoy et al. | Nature Communications | 2020] An Excess of Niche Differences Maximizes Ecosystem Functioning — Connects coexistence theory with biodiversity effects on ecosystem productivity.
[https://royalsocietypublishing.org/doi/10.1098/rsos.191582 | Multiple Authors | Royal Society Open Science | 2020] Functional Volumes, Niche Packing and Species Richness — Tests whether richer communities contain more functional niche space, more tightly packed niches, or both.
[https://royalsocietypublishing.org/rsbl/article/14/8/20180460/50680/The-filtering-metaphor-revisited-competition-and | Multiple Authors | Biology Letters | 2018] The Filtering Metaphor Revisited — Examines how environmental filtering and competition can produce similar trait patterns while representing different ecological niche processes.
[https://royalsocietypublishing.org/rspb/article/284/1869/20172210/78770/Abiotic-niche-partitioning-and-negative-density | Multiple Authors | Proceedings of the Royal Society B | 2017] Abiotic Niche Partitioning and Negative Density Dependence Drive Tree Coexistence — Shows that environmental specialization and density-dependent mortality jointly contribute to tropical forest diversity.
[https://royalsocietypublishing.org/rspb/article/283/1827/20160047/84381/Species-coexistence-macroevolutionary | Multiple Authors | Proceedings of the Royal Society B | 2016] Species Coexistence: Macroevolutionary Relationships and Niche Differences — Examines links between phylogenetic relatedness, stabilizing niche differences, and competitive fitness differences.
[https://www.annualreviews.org/content/journals/10.1146/annurev-ecolsys-120213-091917 | David Tilman, Forest Isbell and Jane Cowles | Annual Review of Ecology, Evolution, and Systematics | 2014] Biodiversity and Ecosystem Functioning — Reviews evidence that niche complementarity and resource partitioning help explain why diverse communities frequently function better.
[https://www.annualreviews.org/content/journals/10.1146/annurev.ecolsys.31.1.343 | Peter Chesson | Annual Review of Ecology and Systematics | 2000] Mechanisms of Maintenance of Species Diversity — Provides the theoretical basis for modern coexistence theory, distinguishing stabilizing niche mechanisms from processes that equalize competitive fitness.
Fundamental Niche Theory and Measurement
[https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecm.1545 | Multiple Authors | Ecological Monographs | 2022] Defining, Estimating and Understanding the Fundamental Niche — Reviews conceptual and methodological approaches for distinguishing fundamental ecological niches from patterns inferred from occurrence data.
[https://pmc.ncbi.nlm.nih.gov/articles/PMC2981966/ | Michael Kearney et al. | Philosophical Transactions of the Royal Society B | 2010] Modelling the Ecological Niche From Functional Traits — Explains how physiology and organismal traits can be used to construct mechanistic niche models rather than relying only on correlations.
[https://doi.org/10.1086/285079 | Jonathan M. Chase and Mathew A. Leibold | The American Naturalist | 2003] Ecological Niches: Linking Classical and Contemporary Approaches — Develops a resource-based interpretation of the niche connecting species requirements with their effects on ecosystems.
[https://esajournals.onlinelibrary.wiley.com/doi/10.2307/1938141 | Mathew A. Leibold | Ecology | 1995] The Niche Concept Revisited: Mechanistic Models and Community Context — Reconciles multiple definitions of ecological niche by emphasizing species responses to and impacts on environmental factors.
[https://www.annualreviews.org/doi/pdf/10.1146/annurev.es.14.110183.002043 | T. W. Schoener | Annual Review of Ecology and Systematics | 1983] The Theory of Limiting Similarity — Reviews whether competing species must differ by a minimum amount in resource use to coexist.
[https://doi.org/10.1086/282955 | Robert D. Holt | The American Naturalist | 1977] Predation, Apparent Competition, and the Structure of Prey Communities — Shows how shared predators can create indirect competition and effectively modify the realized niches of prey species.
[https://doi.org/10.1086/282929 | Robert MacArthur and Richard Levins | The American Naturalist | 1967] The Limiting Similarity, Convergence, and Divergence of Coexisting Species — Develops influential theory predicting constraints on ecological similarity among stable competitors.
[https://doi.org/10.2307/1933952 | Robert H. MacArthur and Richard Levins | Ecology | 1964] Competition, Habitat Selection, and Character Displacement — Explores how competition affects habitat choice and ecological divergence among species.
| Robert H. MacArthur | Ecology | 1958 Population Ecology of Some Warblers of Northeastern Coniferous Forests — A classic demonstration of spatial and behavioral resource partitioning among ecologically similar bird species.
[https://doi.org/10.1101/SQB.1957.022.01.039 | G. Evelyn Hutchinson | Cold Spring Harbor Symposia on Quantitative Biology | 1957] Concluding Remarks — Introduces the influential concept of the ecological niche as an n-dimensional hypervolume describing environmental conditions permitting species persistence.
Range Limits, Invasions, and Niche Dynamics
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0334958 | E. A. Alvarez-Alvarez et al. | PLOS ONE | 2025] Seasonal Climatic Niche-Switching Migration in the Rufous Hummingbird — Shows that migratory species may occupy markedly different climatic niches during breeding and wintering periods.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0323758 | R. R. Nair et al. | PLOS ONE | 2025] Patterns in Climatic Niche Evolution — Investigates how climatic niches become more constrained or more flexible during evolutionary diversification.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0333679 | Q. Si et al. | PLOS ONE | 2025] Mechanisms of Multi-Species Mealybug Invasions — Compares niche and geographic overlap among invasive insects to identify environmental conditions favoring establishment.
[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0320921 | U. Gunasekera et al. | PLOS ONE | 2025] Ecological Niche Modeling for Disease Surveillance — Uses ecological niche models to identify environmental conditions associated with foot-and-mouth disease outbreaks.
[https://www.mdpi.com/2223-7747/14/15/2403 | M. M. Ju et al. | Plants | 2025] Population Genomics Reveals Niche Differentiation — Combines genetic data with species-distribution models to examine relationships among population divergence, adaptation, and ecological niche overlap.
[https://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0012430 | F. S. Caron et al. | PLOS Neglected Tropical Diseases | 2024] Range Size Positively Correlates With Temperature and Precipitation Niche Breadth — Finds that species occupying broader climatic conditions tend to have larger geographic ranges.
[https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecy.4053 | Multiple Authors | Ecology | 2023] Niche Breadth of Amazonian Trees Increases With Niche Position — Shows that environmental niche breadth varies systematically along soil nutrient gradients.
[https://royalsocietypublishing.org/rstb/article/368/1623/20120150/22169/Vacated-niches-competitive-release-and-the | Multiple Authors | Philosophical Transactions of the Royal Society B | 2013] Vacated Niches, Competitive Release and Community Ecology — Uses ecological release following extinction or colonization to investigate how competition restricts realized niche breadth.
[https://doi.org/10.1111/j.1365-2699.2010.02496.x | A. T. Peterson | Journal of Biogeography | 2011] Ecological Niche Conservatism: A Time-Structured Review of Evidence — Reviews evidence for and against the retention of ancestral ecological niches over evolutionary time.
