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Erratum to: Using multistate capture–mark–recapture models to quantify effects of predation on age-specific survival and population growth in black-tailed deer

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Demography of plains zebras (Equus quagga) under heavy predation

Content Provider	Springer Nature Link
Author	Grange, Sophie Barnier, Florian Duncan, Patrick Gaillard, Jean Michel Valeix, Marion Ncube, Hlengisizwe Périquet, Stéphanie Fritz, Hervé
Copyright Year	2015
Abstract	In natural ecosystems, ungulate densities show strong temporal variations. The ecological processes driving these fluctuations are complex: food limitation and predation are both important and can interact. Survival rates are central to this debate, but data are sparse for tropical ecosystems. Here, we estimate age- and sex-specific survival rates for plains zebra in Hwange National Park, a nutrient-poor savanna with a high predator–prey ratio. We estimated survival from a detailed Capture-Mark-Recapture (CMR) monitoring based on 248 individual life histories, for the first time in an African grazer. We controlled for variations in detection probabilities among adult females, which resulted from their social structure. As expected, annual survival was low during the first year (0.441); increased in yearlings (0.560) and peaked at 0.795 and 0.847 in adult males and females respectively. The survival of adult females was lower during the dry season, which probably resulted from higher predation due to predictable movements of zebras to waterholes. Survival at all ages was low compared to ungulates without predators. The demographic model we constructed showed a declining trend (λ = 0.94), which was consistent with the data from road counts ( $$\hat{\lambda }$$ = 0.92). Life Table Response Experiment (LTRE) analyses using the Serengeti and Kruger populations as references showed that the main cause of this declining trend in the Hwange population was low survival in yearling and adult females; low foal survival also contributed. In this ecosystem, predation is likely to be the main ecological process causing low survival, and therefore a decline in the zebra population.
Starting Page	201
Ending Page	214
Page Count	14
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	57
Issue Number	1
e-ISSN	1438390X
Language	English
Publisher	Springer Japan
Publisher Date	2015-01-20
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	CMR Equids Population limitation Predation Tropical ecosystems Ecology Zoology Plant Sciences Evolutionary Biology Behavioral Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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