Climate, food and humans predict communities of mammals in the United States
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Le résumé fourni par la source
Abstract Aim The assembly of species into communities and ecoregions is the result of interacting factors that affect plant and animal distribution and abundance at biogeographic scales. Here, we empirically derive ecoregions for mammals to test whether human disturbance has become more important than climate and habitat resources in structuring communities. Location Conterminous United States. Time Period 2010–2021. Major Taxa Studied Twenty‐five species of mammals. Methods We analysed data from 25 mammal species recorded by camera traps at 6645 locations across the conterminous United States in a joint modelling framework to estimate relative abundance of each species. We then used a clustering analysis to describe 8 broad and 16 narrow mammal communities. Results Climate was the most important predictor of mammal abundance overall, while human population density and agriculture were less important, with mixed effects across species. Seed production by forests also predicted mammal abundance, especially hard‐mast tree species. The mammal community maps are similar to those of plants, with an east–west split driven by different dominant species of deer and squirrels. Communities vary along gradients of temperature in the east and precipitation in the west. Most fine‐scale mammal community boundaries aligned with established plant ecoregions and were distinguished by the presence of regional specialists or shifts in relative abundance of widespread species. Maps of potential ecosystem services provided by these communities suggest high herbivory in the Rocky Mountains and eastern forests, high invertebrate predation in the subtropical south and greater predation pressure on large vertebrates in the west. Main Conclusions Our results highlight the importance of climate to modern mammals and suggest that climate change will have strong impacts on these communities. Our new empirical approach to recognizing ecoregions has potential to be applied to expanded communities of mammals or other taxa.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Climate, food and humans predict communities of mammals in the United States
- Date Crossref
- 27/06/2024
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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North Carolina Museum of Natural Sciences pays non établi dans la noticeInstitution
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North Carolina State University Department of Forestry and Environmental Resources pays non établi dans la noticeUniversité ou école supérieure
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Clemson University Department of Forestry and Environmental Conservation pays non établi dans la noticeUniversité ou école supérieure
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Smithsonian Conservation Biology Institute pays non établi dans la noticeStructure de recherche
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National Zoological Park pays non établi dans la noticeInstitution
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Conservation Biology Institute pays non établi dans la noticeOrganisation à but non lucratif
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University of Illinois Urbana-Champaign Prairie Research Institute pays non établi dans la noticeUniversité ou école supérieure
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Illinois Archaeological Survey pays non établi dans la noticeInstitution
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Illinois Natural History Survey pays non établi dans la noticeOrganisme public
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North Carolina Museum of Natural Sciences, Department of Forestry and Environmental Resources — North Carolina State University et Department of Forestry and Environmental Conservation — Clemson University, avec 9 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.