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Villalobos S, Vamosi JC. Climate and habitat influences on bee community structure in Western Canada. CAN J ZOOL 2018. [DOI: 10.1139/cjz-2017-0226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The persistence of pollinators in a given habitat is determined in part by traits that affect their response to environmental variables. Here, we show that climate and habitat features are the main drivers of trait distribution in bees across spatially separated habitats. We determined that trait and clade filtering results in bee assemblages in Western Canada exhibiting clustering that is correlated with differences in temperature, humidity, and rainfall. Phylogenetic signals were detected in all traits associated with pollinator life-history strategies, including phenology. The Bombus Latreille, 1802 clade (including the social parasite subgenus Psithyrus Lepeletier, 1833) comprised a higher proportion of prairie bees, whereas assemblages in Garry oak sites exhibited higher representation from solitary bees (e.g., genera Osmia Panzer, 1806, Andrena Fabricius, 1775, Ceratina Latreille, 1802). Because these same traits influence which plant species are pollinated, this selective environmental occupancy within the two different habitats could promote local adaptation of flowering plant species pollinated by more social clades in prairies and more solitary bees in Garry oak.
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Affiliation(s)
- Soraya Villalobos
- Department of Biological Sciences, University of Calgary, 2500 University Drive Northwest, Calgary, AB T2N 1N4, Canada
- Department of Biological Sciences, University of Calgary, 2500 University Drive Northwest, Calgary, AB T2N 1N4, Canada
| | - Jana C. Vamosi
- Department of Biological Sciences, University of Calgary, 2500 University Drive Northwest, Calgary, AB T2N 1N4, Canada
- Department of Biological Sciences, University of Calgary, 2500 University Drive Northwest, Calgary, AB T2N 1N4, Canada
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