Translator Disclaimer
1 October 2006 PARTIAL SEMELPARITY IN THE NEOTROPICAL DIDELPHID MARSUPIAL GRACILINANUS MICROTARSUS
Author Affiliations +
Abstract

Semelparity has been demonstrated in males of several species of Australian dasyurid marsupials. Although semelparity also has been reported in some species of neotropical didelphid marsupials, no study has conclusively demonstrated its occurrence based on survival rate estimates from field studies of marked individuals. In this study, we demonstrate that the survival rates of males of a Neotropical didelphid marsupial, the Brazilian gracile mouse opossum (Gracilinanus microtarsus), decrease sharply after the beginning of the breeding season in a cerrado remnant. However, mortality of the males after mating is not complete and a small percentage of them may survive to breed again in a 2nd breeding season. Examination of the demographic data presented here conclusively demonstrates that G. microtarsus is best described as partially semelparous.

Eduardo G. Martins, Vinícius Bonato, Cibele Q. da-Silva, and Sérgio F. dos Reis "PARTIAL SEMELPARITY IN THE NEOTROPICAL DIDELPHID MARSUPIAL GRACILINANUS MICROTARSUS," Journal of Mammalogy 87(5), 915-920, (1 October 2006). https://doi.org/10.1644/05-MAMM-A-403R1.1
Accepted: 1 March 2006; Published: 1 October 2006
JOURNAL ARTICLE
6 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top