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Adkins J, Hammill E, Abdulwahab UA, Draper JP, Wolf JM, McClure CM, González Ortiz AA, Chavez EA, Atwood TB. Environmental variables drive spatial patterns of trophic diversity in mammals. Ecol Lett 2023; 26:1940-1950. [PMID: 37694760 DOI: 10.1111/ele.14306] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 08/23/2023] [Accepted: 08/29/2023] [Indexed: 09/12/2023]
Abstract
Understanding environmental drivers of species diversity has become increasingly important under climate change. Different trophic groups (predators, omnivores and herbivores) interact with their environments in fundamentally different ways and may therefore be influenced by different environmental drivers. Using random forest models, we identified drivers of terrestrial mammals' total and proportional species richness within trophic groups at a global scale. Precipitation seasonality was the most important predictor of richness for all trophic groups. Richness peaked at intermediate precipitation seasonality, indicating that moderate levels of environmental heterogeneity promote mammal richness. Gross primary production (GPP) was the most important correlate of the relative contribution of each trophic group to total species richness. The strong relationship with GPP demonstrates that basal-level resource availability influences how diversity is structured among trophic groups. Our findings suggest that environmental characteristics that influence resource temporal variability and abundance are important predictors of terrestrial mammal richness at a global scale.
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Affiliation(s)
- Jaron Adkins
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - Edd Hammill
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - Umarfarooq A Abdulwahab
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - John P Draper
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - J Marshall Wolf
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - Catherine M McClure
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - Adrián A González Ortiz
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - Emily A Chavez
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
| | - Trisha B Atwood
- The Department of Watershed Sciences and The Ecology Center, Utah State University, Logan, Utah, USA
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Karami P, Tavakoli S, Esmaeili M. Fine-scale habitat suitability and connectivity analysis for the core populations of Yellow-spotted mountain pond-breeding newt (Neurergus derjugini) in the west of Iran and east of Iraq. Glob Ecol Conserv 2023. [DOI: 10.1016/j.gecco.2023.e02429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
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Mateo RG, Arellano G, Gómez-Rubio V, Tello JS, Fuentes AF, Cayola L, Loza MI, Cala V, Macía MJ. Insights on biodiversity drivers to predict species richness in tropical forests at the local scale. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Radomski T, Beamer D, Babineau A, Wilson C, Pechmann J, Kozak KH. Finding what you don’t know: Testing SDM methods for poorly known species. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Tom Radomski
- Ecology, Evolution, and Behavior Graduate Program University of Minnesota Saint Paul Minnesota USA
| | - David Beamer
- Department of Natural Sciences Nash Community College Rocky Mount North Carolina USA
| | - Alan Babineau
- Biology Graduate Program Appalachian State University Boone North Carolina USA
| | - Christa Wilson
- Department of Biology Western Carolina University Cullowhee North Carolina USA
| | - Joseph Pechmann
- Department of Biology Western Carolina University Cullowhee North Carolina USA
- Savannah River Ecology Laboratory University of Georgia Aiken South Carolina USA
| | - Kenneth H. Kozak
- Bell Museum and Department of Fisheries, Wildlife, and Conservation Biology University of Minnesota Saint Paul Minnesota USA
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