NDLI: Persistence and local extinction of lion prides in the Ngorongoro Crater, Tanzania

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Persistence and local extinction of lion prides in the Ngorongoro Crater, Tanzania

Content Provider	Springer Nature Link
Author	Kissui, Bernard M. Mosser, Anna Packer, Craig
Copyright Year	2009
Abstract	African lions (Panthera leo) live in social groups (prides) that exhibit group territorial behavior. Pride persistence is expected to depend on its ability to compete against neighboring prides as well as on average rates of reproduction and survival, thus providing a meaningful measure of intergenerational reproductive success. We used Akaike’s Information Criterion (AIC) to select the best approximating models explaining how demographic variables influenced pride persistence during a 30-year period in the Ngorongoro Crater, Tanzania, and identified landscape factors affecting those demographic variables. Pride persistence to 10 years depended on adult female density (pride size) and cub productivity (the ultimate source of new females). Average age of adult females had a weakly positive influence on pride persistence, while the effect of female mortality was weakly negative. Adult female mortality increased with disease epidemics and in territories with high human disturbance. Cub productivity was highest in territories closest to rivers and only slightly higher near swamps, and also high in areas of higher vegetative cover and high human use. No landscape variable significantly affected female density. The growth and population size of the Crater lions was closely linked to demographic performance of individual prides, while territorial behavior played a key role in mediating the interactive effects of landscape and demography.
Starting Page	103
Ending Page	111
Page Count	9
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	52
Issue Number	1
e-ISSN	1438390X
Language	English
Publisher	Springer Japan
Publisher Date	2009-09-02
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Anthropogenic factors Disease outbreak Landscape variables Pride territory Reproductive success Territorial behavior Forestry Behavioural Sciences Evolutionary Biology Plant Sciences Zoology Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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