Sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper

摘要: AbstractInvestigating how patterns of sexual size dimorphism vary among local populations may be useful for understanding evolution in lizards. We investigated a Tunisian population Bosk's fringe-toed lizards Acanthodactylus boskianus asper, relation to Middle-eastern the same subspecies. Our results showed an overall male-biased dimorphism, consistent with general trends lacertids, and provide support both fecundity advantage hypothesis intra-sexual selection hypothesis. Indeed, similarly-sized heads, females had longer trunks than males, trunks, males larger heads females. Using discriminant function approach, we whether power discrimination between sexes varied when morphometric measures were expressed relative head length vs. trunk length. found that two methods agreed classification individuals as or f...