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Use of genetic markers to quantify bumblebee foraging range and nest density

Darvill, Ben, Knight, Mairi E. and Goulson, Dave (2004) Use of genetic markers to quantify bumblebee foraging range and nest density Oikos, 107, (3), pp. 471-478. (doi:10.1111/j.0030-1299.2004.13510.x).

Record type: Article


Bumblebees (Hymenoptera: Apidae) are important pollinators of crops and wildflowers, but many species have suffered dramatic declines in recent decades. Strategies for their conservation require knowledge of their foraging range and nesting density, both of which are poorly understood. Previous studies have mainly focussed on the cosmopolitan bumblebee species Bombus terrestris, and implicitly assume this to be representative of other species. Here we use a landscape-scale microsatellite study to estimate the foraging range and nesting density of two ecologically dissimilar species, B. terrestris and R pascuorum. Workers were sampled along a 10 kin linear transect and 8-9 polymorphic microsatellite markers used to identify putative sisters. We provide the first published estimates of the number of colonies using a circle of radius 50 in in an agricultural landscape: 20.4 for R terrestris and 54.7 for R pascuorum. Estimates of nest density differed significantly between the two species: 13 km(-2) for B. terrestris and 193 km(-2) for B. pascuorum. Foraging ranges also differed substantially, with R pascuorum foraging over distances less than 312 in and R terrestris less than 625 m. Clearly bumblebee species differ greatly in fundamental aspects of their ecology. This has significant implications for the development of conservation strategies for rare bumblebees and isolated plant populations, for the management of bumblebees as pollinators, and for predicting patterns of gene flow from genetically modified plants.

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Submitted date: 8 June 2004
Published date: December 2004


Local EPrints ID: 56915
ISSN: 0030-1299
PURE UUID: dd8a0eeb-db45-4dc4-a59a-e9c01822d596

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Date deposited: 11 Aug 2008
Last modified: 17 Jul 2017 14:30

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Author: Ben Darvill
Author: Mairi E. Knight
Author: Dave Goulson

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