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Keywords = squirrel glider

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10 pages, 1307 KiB  
Article
Are Urban Populations of a Gliding Mammal Vulnerable to Decline?
by Anita J. Marks and Ross L. Goldingay
Animals 2023, 13(13), 2098; https://doi.org/10.3390/ani13132098 - 24 Jun 2023
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Abstract
Small populations are at high risk of extinction, and they are likely to need management intervention. Successful management, however, relies on sufficient long-term demographic data in order to determine whether apparent declines are natural fluctuations or the product of threatening processes. In this [...] Read more.
Small populations are at high risk of extinction, and they are likely to need management intervention. Successful management, however, relies on sufficient long-term demographic data in order to determine whether apparent declines are natural fluctuations or the product of threatening processes. In this study, we monitored a small urban population of squirrel gliders (Petaurus norfolcensis) in Queensland, Australia, over a 16 year period. A reference population in a larger forest patch was also studied in order to investigate whether its demographic trends were similar. Using mark-recapture data to generate estimates of apparent survival and population size, we found evidence of a decline within the small population but not in the reference population over the monitoring period. We suggest that the influence of multiple factors may have led to the decline, but, ultimately, that the genetic condition of the small population may be responsible. Understanding demographic trends is an important context for management interventions of small populations, although causes of decline need to be identified for successful management. The squirrel glider provides a useful case study for small urban populations and particularly for arboreal mammals. Full article
(This article belongs to the Topic Ecology, Management and Conservation of Vertebrates)
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