S election by a fungal parasite in dung flies 1 1 Selection on morphological traits and fluctuating asymmetry by a fungal 2 parasite in the yellow dung fly 3 4

Abstract

11 Evidence for selective disadvantages of large body size remains scarce in general. Previous 12 phenomenological studies of the yellow dung fly Scathophaga stercoraria have demonstrated 13 strong positive sexual and fecundity selection on male and female size. Nevertheless, the body 14 size of flies from a Swiss study population has declined by almost 10… (More)

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