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Traits And Functional Diversity Of A Hyperdiverse Bee Assemblage Are Linked To Aridity, Benjamin D. Turnley
Traits And Functional Diversity Of A Hyperdiverse Bee Assemblage Are Linked To Aridity, Benjamin D. Turnley
Biology ETDs
Climate change in the American Southwest is altering the composition of species assemblages. However, the resulting patterns in mean trait values and functional diversity are poorly understood. Bees assemblages in Southwestern drylands are exceptionally diverse, and vary greatly in their morphologic traits. In this study we focused on two questions: Have community-weighted mean trait values shifted over time and/or with aridity, consistent with the hypothesis that aridification is driving bee assemblage change? Has the functional diversity of the Sevilleta bee assemblage declined over time and/or with aridity, consistent with the hypothesis that pollination services could be declining? To address these …
The Consequences Of Climate Change For Native Bee Assemblages, Melanie R. Kazenel
The Consequences Of Climate Change For Native Bee Assemblages, Melanie R. Kazenel
Biology ETDs
Recent declines in terrestrial arthropod biodiversity highlight the need to pinpoint which taxa and ecosystem services are most threatened, and why. But, for most of the world’s ~20,000 bee species, we lack robust evidence of population trends, and the role of climate change remains surprisingly little studied. I used long-term bee monitoring data from the Sevilleta Long-Term Ecological Research Program (Socorro, NM, USA), along with complementary experimental and observational data, to examine how climate relates to bee abundance and diversity patterns over time and space, and to identify the traits that govern bees’ climate sensitivities.