Tag Archives: Bourke

Research Published! Colony size predicts division of labour in attine ants

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Henry Ferguson-Gow, Seirian Sumner, Andrew F. G. Bourke and Kate E. Jones   Division of labour is central to the ecological success of eusocial insects, yet the evolutionary factors driving increases in complexity in division of labour are little known. The size–complexity hypothesis proposes that, as larger colonies evolve, both non-reproductive and reproductive division of labour become more complex as workers and queens act to maximize inclusive fitness. Using a statistically robust phylogenetic comparative analysis of social and environmental traits

Research Published! Fine‐scale spatial genetic structure of common and declining bumble bees across an agricultural landscape

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Stephanie Dreier, John W. Redhead, Ian A. Warren, Andrew F. G. Bourke, Matthew S. Heard, William C. Jordan, Seirian Sumner, Jinliang Wang and Claire Carvell   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