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dc.contributor.authorOsorio‐Olvera, Luis
dc.contributor.authorSoberón, Jorge
dc.contributor.authorFalconi, Manuel
dc.date.accessioned2021-01-07T19:59:55Z
dc.date.available2021-01-07T19:59:55Z
dc.date.issued2019-03-04
dc.identifier.citationOsorio‐Olvera, L., Soberón, J. and Falconi, M. (2019), On population abundance and niche structure. Ecography, 42: 1415-1425. https://doi.org/10.1111/ecog.04442en_US
dc.identifier.urihttp://hdl.handle.net/1808/31056
dc.description.abstractRecent published evidence indicates a negative correlation between density of populations and the distance of their environments to a suitably defined ‘niche centroid’. This empirical observation lacks theoretical grounds. We provide a theoretical underpinning for the empirical relationship between population density and position in niche space, and use this framework to understand the circumstances under which the relationship will fail. We propose a metapopulation model for the area of distribution, as a system of ordinary differential equations coupled with a dispersal kernel. We present an analytical approximation to the solution of the system as well as R code to solve the full model numerically. We use this tool to analyze various scenarios and assumptions. General and realistic demographic assumptions imply a good correlation between position in niche space and population abundance. Factors that modify this correlation are: transitory states, a heterogeneous spatial structure of suitability, and Allee effects. We also explain why the raw output of the niche modeling algorithm MaxEnt is not a good predictor of environmental suitability. Our results elucidate the empirical results for spatial patterns of population size in niche terms, and provide a theoretical basis for a structured theory of the niche.en_US
dc.publisherWiley Open Accessen_US
dc.rights© 2019 The Authors. Ecography © 2019 Nordic Society Oikos.en_US
dc.subjectAllee effectsen_US
dc.subjectMetapopulationsen_US
dc.subjectNiche structureen_US
dc.subjectPopulation densityen_US
dc.titleOn population abundance and niche structureen_US
dc.typeArticleen_US
kusw.kuauthorSoberón, Jorge
kusw.kudepartmentEcology & Evolutionary Biologyen_US
kusw.kudepartmentKU Biodiversity Instituteen_US
dc.identifier.doi10.1111/ecog.04442en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-0701-5398en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-2160-4148en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-4296-7258en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccessen_US


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