NDLI: Capture-Recapture Smooth Estimation of Age-Specific Survival Probabilities in Animal Populations

Content Provider	Springer Nature Link
Author	Viallefont, Anne
Copyright Year	2010
Abstract	Yielding sound estimates of survival according to age in wild populations where senescence or other age-related variations may occur is very important to management decision makers, and remains challenging. This paper proposes to use penalized maximum likelihood to obtain smooth estimates of annual survival probabilities across age in populations of wild animals followed by capture–recapture. We propose to use two different types of smoothing penalties, and we use ν-fold cross-validation to select the best value of the tuning parameter for the intensity of smoothing. We then assess the accuracy of the method by a simulation study with two different shapes of the relationship between age and survival, and we conclude that a careful use of this method provides reliable noise-free estimates of age-specific annual survival. We apply this procedure to the motivating data from a population of roe deer known to exhibit a marked decrease of survival with age, and we compare our results with those previously published on this population.
Starting Page	131
Ending Page	141
Page Count	11
File Format	PDF
ISSN	10857117
Journal	Journal of Agricultural, Biological, and Environmental Statistics
Volume Number	16
Issue Number	1
e-ISSN	15372693
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-06-16
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	k-fold cross-validation Generalized cross-validation Penalized likelihood Senescence Age-structured populations Statistics for Life Sciences, Medicine, Health Sciences Biostatistics Agriculture Environmental Monitoring/Analysis
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Statistics and Probability Environmental Science Agricultural and Biological Sciences Statistics, Probability and Uncertainty

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