Document Detail

Genetic Introgression and the Survival of Florida Panther Kittens.
MedLine Citation:
PMID:  21113436     Owner:  NLM     Status:  Publisher    
Estimates of survival for the young of a species are critical for population models. These models can often be improved by determining the effects of management actions and population abundance on this demographic parameter. We used multiple sources of data collected during 1982-2008 and a live recapture-dead recovery modeling framework to estimate and model survival of Florida panther (Puma concolor coryi) kittens (age 0 - 1 year). Overall, annual survival of Florida panther kittens was 0.323 ± 0.071 (SE), which was lower than estimates used in previous population models. In 1995, female pumas from Texas (P. c. stanleyana) were released into occupied panther range as part of an intentional introgression program to restore genetic variability. We found that kitten survival generally increased with degree of admixture: F(1) admixed and backcrossed to Texas kittens survived better than canonical Florida panther and backcrossed to canonical kittens. Average heterozygosity positively influenced kitten and older panther survival, whereas index of panther abundance negatively influenced kitten survival. Our results provide strong evidence for the positive population-level impact of genetic introgression on Florida panthers. Our approach to integrate data from multiple sources was effective at improving robustness as well as precision of estimates of Florida panther kitten survival, and can be useful in estimating vital rates for other elusive species with sparse data.
Jeffrey A Hostetler; David P Onorato; James D Nichols; Warren E Johnson; Melody E Roelke; Stephen J O'Brien; Deborah Jansen; Madan K Oli
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Publication Detail:
Journal Detail:
Title:  Biological conservation     Volume:  143     ISSN:  0006-3207     ISO Abbreviation:  -     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502018     Medline TA:  Biol Conserv     Country:  -    
Other Details:
Languages:  ENG     Pagination:  2789-2796     Citation Subset:  -    
Department of Wildlife Ecology and Conservation, 110 Newins-Ziegler Hall, University of Florida, Gainesville, FL 32611-0430.
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MeSH Terms
Grant Support
N01 CO012400//NCI NIH HHS

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