Volume 15 - Article 14 | Pages 413–434

Comparative mortality levels among selected species of captive animals

By Iliana Kohler, Samuel H. Preston, Laurie Bingaman Lackey

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Date received:06 Jun 2006
Date published:17 Nov 2006
Word count:4689
Keywords:ISIS, longevity, mortality, survivorship


We present life tables by single year of age and sex for groups of animals and for 42 individual mostly mammalian species. Data are derived from the International Species Information System. The survivorship of most of these species has never been mapped systematically. We demonstrate that, in most of the groups, female survivorship significantly exceeds that of males above age five. Wild-born animals do not have mortality that differs significantly from captive-born animals. While most species have mortality that rises with
age above the juvenile stage, there are several groups for which the age pattern of mortality is nearly level.

Author's Affiliation

Iliana Kohler - University of Pennsylvania, United States of America [Email]
Samuel H. Preston - University of Pennsylvania, United States of America [Email]
Laurie Bingaman Lackey - International Species Information System (ISIS), United States of America [Email]

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