Salvador C H, Graipel M E, Simões-Lopes P C
Departamento de Ecologia e Zoologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianopolis, SC, Brazil, 88010-970.
Braz J Biol. 2009 May;69(2):311-7. doi: 10.1590/s1519-69842009000200011.
The body size of vertebrates isolated on islands can undergo changes due to ecological features of these environments. This study aimed to compare the body size of the common opossum, Didelphis aurita, from different insular populations within the same archipelago in southern Brazil. The opossum populations showed corporal variation and different hypotheses were raised to understand the results. This study constitutes the most detailed body size comparison of a marsupial within different insular populations in the Neotropical zone and the data gathered represents an initial contribution for regional fauna biometric knowledge.
由于这些环境的生态特征，孤立在岛屿上的脊椎动物的体型可能会发生变化。本研究旨在比较巴西南部同一群岛内不同岛屿种群的普通负鼠（Didelphis aurita）的体型。负鼠种群表现出身体差异，并提出了不同的假设来解释这些结果。本研究是新热带区不同岛屿种群中有袋动物最详细的体型比较，所收集的数据是对区域动物生物特征知识的初步贡献。
