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Volume 95, Issue 7 p. 2027-2027
Data Paper
Free Access

EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals

Ecological Archives E095-178

Hamish Wilman

Hamish Wilman

Ecology and Evolutionary Biology Department, Yale University, 165 Prospect Street, New Haven, Connecticut 06511 USA

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Jonathan Belmaker

Jonathan Belmaker

Ecology and Evolutionary Biology Department, Yale University, 165 Prospect Street, New Haven, Connecticut 06511 USA

Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978 Israel

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Jennifer Simpson

Jennifer Simpson

Ecology and Evolutionary Biology Department, Yale University, 165 Prospect Street, New Haven, Connecticut 06511 USA

Scientific Technologies Corporation, 4400 East Broadway Boulevard Suite 705, Tucson, Arizona 85711 USA

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Carolina de la Rosa

Carolina de la Rosa

Ecology and Evolutionary Biology Department, Yale University, 165 Prospect Street, New Haven, Connecticut 06511 USA

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Marcelo M. Rivadeneira

Marcelo M. Rivadeneira

Centro de Estudios Avanzados en Zonas Aridas (CEAZA) and Universidad Católica del Norte, Av. Ossandón 877, C.P. 178168, Coquimbo, Chile

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Walter Jetz

Corresponding Author

Walter Jetz

Ecology and Evolutionary Biology Department, Yale University, 165 Prospect Street, New Haven, Connecticut 06511 USA

Imperial College London, Silwood Park Campus, Buckhurst Road, SL5 7PY Ascot, Berkshire, United Kingdom

Corresponding author: [email protected]Search for more papers by this author
First published: 01 July 2014
Citations: 1,092

Corresponding Editor: W. K. Michener.

Abstract

Species are characterized by physiological, behavioral, and ecological attributes that are all subject to varying evolutionary and ecological constraints and jointly determine species' role and function in ecosystems. Attributes such as diet, foraging strata, foraging time, and body size, in particular, characterize a large portion of the “Eltonian” niches of species. Here we present a global species-level compilation of these key attributes for all 9993 and 5400 extant bird and mammal species derived from key literature sources. Global handbooks and monographs allowed the consistent sourcing of attributes for most species. For diet and foraging stratum we followed a defined protocol to translate the verbal descriptions into standardized, semiquantitative information about relative importance of different categories. Together with body size (continuous) and activity time (categorical) this enables a much finer distinction of species' foraging ecology than typical categorical guild assignments allow. Attributes lacking information for specific species are flagged, and interpolated values based on taxonomy are provided instead. The presented data set is limited by, among others, these select cases missing observed data, by errors and uncertainty in the expert assessment as presented in the literature, and by the lack of intraspecific information. However, the standardized and transparent nature and complete global coverage of the data set should support an array of potential studies in biogeography, community ecology, macroevolution, global change biology, and conservation. Potential uses include comparative work involving these traits as focal or secondary variables, ecological research on the trait or trophic structure of communities, or conservation science concerned with the loss of function among species or in ecosystems in a changing world. We hope that this publication will spur the sharing, collaborative curation, and extension of data to the benefit of a more integrative, rigorous, and global biodiversity science.