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Age structure, mortality and breeding in a population of agile wallabies (Macropus agilis)

Stirrat, Simon C. (2008). Age structure, mortality and breeding in a population of agile wallabies (Macropus agilis). Australian Journal of Zoology,56(6):431-439.

Document type: Journal Article
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Title Age structure, mortality and breeding in a population of agile wallabies (Macropus agilis)
Author Stirrat, Simon C.
Journal Name Australian Journal of Zoology
Publication Date 2008
Volume Number 56
Issue Number 6
ISSN 0004-959X   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-63149127434
Start Page 431
End Page 439
Total Pages 9
Place of Publication Australia
Publisher C S I R O Publishing
Field of Research 300800 Environmental Sciences
Abstract Aspects of the demography of the agile wallaby (Macropus agilis) were investigated in an overabundant population in East Point Reserve, Darwin. The maximum wet-season population size was relatively stable for several years before, and during, this study. Data suggest that the population fluctuated in size seasonally. Life table analysis indicated that mortality of animals up to 18 months old (including pouch young and young-at-foot) was high compared with adult mortality rates. After 18 months of age, mortality rates of males increased throughout life whereas those of females declined slightly and were relatively stable in older age classes. Females reproduced throughout the year, but more large pouch young were observed in the wet season than at other times of the year. The sex ratio of the population was female-biased, probably a result of higher mortality of males in the dry season. Predation by dogs was documented but contributed a relatively small fraction of total annual mortality.
DOI http://dx.doi.org/10.1071/ZO08060   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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Created: Fri, 29 Aug 2014, 18:00:58 CST by Anthony Hornby