Cumulative Effects of Climate and Landscape Structure on Bombus Assemblages Within Agricultural Fields Throughout the U.S.

Name: Cumulative Effects of Climate and Landscape Structure on Bombus Assemblages Within Agricultural Fields Throughout the U.S.
Creator: Department of Environmental Sciences, Emory University, Atlanta, GA 30322; Department of Biology and Ecology Center, Utah State University, Logan, UT 84322, USA; Biology Department, Utah State University, Logan, UT 84322; Department of Entomology, The Ohio State University, Columbus, OH, 43210; Biology Department and Ecology Center, Utah State University, Logan, UT 84322; Department of Life Sciences, Imperial College London, Silwood Park Campus, Berkshire, UK
Published: 2022-03-17T00:00:00+08:00

Zenodo2022-03-17 更新2026-04-07 收录

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资源简介：

Bumble bees (Bombus) are integral pollinators of native and cultivated plant communities, but are undergoing drastic population changes worldwide. Climate change and the alteration of landscape structure are key drivers in pollinator declines; however, little research has evaluated their cumulative effects on Bombus assemblages. In this study, we evaluated the cumulative effects of various bioclimatic variables associated with temperature and precipitation, and landscape metrics (Shannon diversity, patch richness density, contiguity, and interspersion and juxtaposition) on Bombus assemblages within agricultural fields throughout Florida, Indiana, Kansas, Kentucky, Maryland, South Carolina, Utah, Virginia, and West Virginia from 2018 to 2020. Beta-diversity was dominated by species turnover, suggesting that all agricultural sites in this study have potential conservation value for maintaining diverse Bombus communities. Species abundances were highest at sites with reduced precipitation seasonality and lower temperatures. Therefore, as climate change alters precipitation seasonality and increases mean temperatures, Bombus abundances will likely decline due to increased susceptibility to the changing environment. Bombus species composition varied based on landscape structure and climate throughout the U.S. Interestingly, Utah Bombus species were associated with agricultural landscapes with greater compositional and configurational complexity, increased climate seasonality, and lower annual mean temperatures. Meanwhile, eastern Bombus species were associated with agricultural landscapes with less compositional and configurational complexity, decreased climate seasonality, and higher annual mean temperatures. Therefore, implementing land management practices based on the continuum of climatic and landscape conditions throughout the U.S. will help conserve Bombus assemblages, while supporting the pollination of crops and wild plants. Overall, evaluating landscape composition, landscape configuration, and climate indices together provides more in-depth information on the expected changes to Bombus assemblages, leading to more robust interpretations of trends and management practices.

提供机构：

Department of Environmental Sciences, Emory University, Atlanta, GA 30322; Department of Biology and Ecology Center, Utah State University, Logan, UT 84322, USA; Biology Department, Utah State University, Logan, UT 84322; Department of Entomology, The Ohio State University, Columbus, OH, 43210; Biology Department and Ecology Center, Utah State University, Logan, UT 84322; Department of Life Sciences, Imperial College London, Silwood Park Campus, Berkshire, UK

创建时间：

2022-03-17