Sexual maturity and growth of male toads (Rhinella ornata): A comparison between insular and mainland populations
作者： Raoni Rebouças , Hélio Ricardo da Silva , Delfi Sanuy , Mirco Solé
DOI: 10.1016/J.JCZ.2019.07.002
关键词:
摘要: Abstract We studied differences in age, longevity, and sexual maturity island mainland populations of the neotropical toad Rhinella ornata to assess how changes characteristics relate evolution insular dwarfism. Here we tested hypothesis that effects rule results earlier maturity. sampled males from three (Ilha Grande, Ilha da Marambaia de Itacuruca) four adjacent sites state Rio Janeiro, Brazil. Age, estimated by skeletochronology, was contrasted classes defined based on observation secondary characters (i.e., nuptial excrescences). Individuals reached after one year longevity at an age be up years. The presence excrescences influenced growth rate varied between populations. Grande reproductive smaller sizes than their co-specifics mainland. Age R. ornata were agreement with data other tropical frog species.
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