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dc.contributor.authorKikuchi, David W
dc.contributor.authorKattan, Gustavo H
dc.contributor.authorNavarro Velez, Kimberly C
dc.date.accessioned2019-03-11T18:48:43Z
dc.date.available2019-03-11T18:48:43Z
dc.date.issued2019-01
dc.identifier.citationKikuchi, D. W., Kattan, G. H., & Navarro Vélez, K. C. (2018). A continent‐scale test of multiple hypotheses on the abundances of Neotropical birds. Oikos.en_US
dc.identifier.urihttp://hdl.handle.net/10150/631819
dc.description.abstractExplaining variation in the abundance of species remains a challenge in ecology. We sought to explain variation in abundance of Neotropical forest birds using a dataset of population densities of 596 species. We tested a priori hypotheses for the roles of species traits, environmental factors, and species interactions. Specifically, we focused on four factors: 1) body mass (trait), 2) habitat type (environmental factor), 3) net primary productivity (NPP; environmental factor) and 4) species richness of competitors (species interaction). Body size explained much variation in density, although only when analyzed at higher taxonomic levels. Habitat type was a strong predictor of density. The relationship between density and productivity was weak. Densities were related negatively to the species richness of heterospecifics. This trend was particularly strong within closely related groups. Our results show that the influence of energetic factors such as body size and productivity depends on phylogeny, and that they act through indirect relations with other variables; alternative ecological factors such as habitat structure and species interactions play a more direct and stronger role in determining abundance than previously thought.en_US
dc.description.sponsorship[NIH-2K12GM000708-18]en_US
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.rights© 2018 The Authors. Oikos © 2018 Nordic Society Oikos.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectbird abundanceen_US
dc.subjectenergy limitationen_US
dc.subjectspecies interactionen_US
dc.subjectAndesen_US
dc.subjectAmazonen_US
dc.subjectdensity compensationen_US
dc.titleA continent-scale test of multiple hypotheses on the abundances of Neotropical birdsen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Ecol & Evolutionary Biolen_US
dc.identifier.journalOIKOSen_US
dc.description.note12 month embargo; first published: 22 August 2018en_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal accepted manuscripten_US


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