Size-assortative mating and sexual size dimorphism are predictable from simple mechanics of mate-grasping behavior |
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| Authors: | Chang S Han Piotr G Jablonski Beobkyun Kim Frank C Park |
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| Affiliation: | 1.Laboratory of Behavioral Ecology and Evolution, School of Biological Sciences,Seoul National University,Seoul,South Korea;2.School of Biological, Earth, and Environmental Science,The University of New South Wales,Sydney,Australia;3.Centre for Ecological Research,Polish Academy of Sciences,Dziekanów Lesny,?omianki,Poland;4.School of Mechanical and Aerospace Engineering,Seoul National University,Seoul,South Korea |
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| Abstract: | Background A major challenge in evolutionary biology is to understand the typically complex interactions between diverse counter-balancing factors of Darwinian selection for size assortative mating and sexual size dimorphism. It appears that rarely a simple mechanism could provide a major explanation of these phenomena. Mechanics of behaviors can predict animal morphology, such like adaptations to locomotion in animals from various of taxa, but its potential to predict size-assortative mating and its evolutionary consequences has been less explored. Mate-grasping by males, using specialized adaptive morphologies of their forelegs, midlegs or even antennae wrapped around female body at specific locations, is a general mating strategy of many animals, but the contribution of the mechanics of this wide-spread behavior to the evolution of mating behavior and sexual size dimorphism has been largely ignored. |
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