A Phylogenetic Analysis of Sexual Size Dimorphism in Turtles

摘要: Abstract Sexual size dimorphism (SSD) is widespread in a variety of vertebrate taxa, and its presence has been associated with range evolutionary ecological factors. Turtles, as lineage, have shown to include species that exhibit both forms SSD—male-biased (male larger) female-biased (female larger)—as well do not SSD ≅ female size). Previous work suggested factors affecting the direction magnitude turtles may habitat preference fecundity; these correlations, however, tested phylogenetic context. To provide framework for evaluating potential correlates turtles, we examined distribution this clade. Published sources were surveyed data on SSD, carapace length, clutch size, egg preferred (terrestrial vs. nonterrestrial). Phylogenies compiled from multiple published sourc...