Fine-scale spatial genetic structure of common and declining bumble bees across an agricultural landscape
- Dreier, Stephanie
- Redhead, John A.
- Warren, Ian A.
- Bourke, Andrew F.G.
- Heard, Matthew S.
- Jordan, William C.
- Sumner, Seirian
- Wang, Jinliang
- Carvell, Claire
DOIAbstract
Land-use changes have threatened populations of many insect pollinators, including bumble bees. Patterns of dispersal and gene flow are key determinants of species' ability to respond to land-use change, but have been little investigated at a fine scale (<10 km) in bumble bees. Using microsatellite markers, we determined the fine-scale spatial genetic structure of populations of four common Bombus species (B. terrestris, B. lapidarius, B. pascuorum and B. hortorum) and one declining species (B. ruderatus) in an agricultural landscape in Southern England, UK. The study landscape contained sown flower patches representing agri-environment options for pollinators. We found that, as expected, the B. ruderatus population was characterized by rel...
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