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On population abundance and niche structure
dc.contributor.author | Osorio‐Olvera, Luis | |
dc.contributor.author | Soberón, Jorge | |
dc.contributor.author | Falconi, Manuel | |
dc.date.accessioned | 2021-01-07T19:59:55Z | |
dc.date.available | 2021-01-07T19:59:55Z | |
dc.date.issued | 2019-03-04 | |
dc.identifier.citation | Osorio‐Olvera, L., Soberón, J. and Falconi, M. (2019), On population abundance and niche structure. Ecography, 42: 1415-1425. https://doi.org/10.1111/ecog.04442 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/31056 | |
dc.description.abstract | Recent 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.publisher | Wiley Open Access | en_US |
dc.rights | © 2019 The Authors. Ecography © 2019 Nordic Society Oikos. | en_US |
dc.subject | Allee effects | en_US |
dc.subject | Metapopulations | en_US |
dc.subject | Niche structure | en_US |
dc.subject | Population density | en_US |
dc.title | On population abundance and niche structure | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Soberón, Jorge | |
kusw.kudepartment | Ecology & Evolutionary Biology | en_US |
kusw.kudepartment | KU Biodiversity Institute | en_US |
dc.identifier.doi | 10.1111/ecog.04442 | en_US |
dc.identifier.orcid | https://orcid.org/0000-0003-0701-5398 | en_US |
dc.identifier.orcid | https://orcid.org/0000-0003-2160-4148 | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-4296-7258 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess | en_US |