Title |
Food load manipulation ability shapes flight morphology in females of central-place foraging Hymenoptera
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Published in |
Frontiers in Zoology, June 2013
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DOI | 10.1186/1742-9994-10-36 |
Pubmed ID | |
Authors |
Carlo Polidori, Angelica Crottini, Lidia Della Venezia, Jesús Selfa, Nicola Saino, Diego Rubolini |
Abstract |
Ecological constraints related to foraging are expected to affect the evolution of morphological traits relevant to food capture, manipulation and transport. Females of central-place foraging Hymenoptera vary in their food load manipulation ability. Bees and social wasps modulate the amount of food taken per foraging trip (in terms of e.g. number of pollen grains or parts of prey), while solitary wasps carry exclusively entire prey items. We hypothesized that the foraging constraints acting on females of the latter species, imposed by the upper limit to the load size they are able to transport in flight, should promote the evolution of a greater load-lifting capacity and manoeuvrability, specifically in terms of greater flight muscle to body mass ratio and lower wing loading. |
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