Journal article
Augmenting superpopulation capture-recapture models with population assignment data
Biometrics, Vol.67(3), pp.691-700
2010
Abstract
Ecologists applying capture-recapture models to animal populations sometimes have access to additional information about individuals' populations of origin (e. g., information about genetics, stable isotopes, etc.). Tests that assign an individual's genotype to its most likely source population are increasingly used. Here we show how to augment a superpopulation capture-recapture model with such information. We consider a single superpopulation model without age structure, and split each entry probability into separate components due to births in situ and immigration. We show that it is possible to estimate these two probabilities separately. We first consider the case of perfect information about population of origin, where we can distinguish individuals born in situ from immigrants with certainty. Then we consider the more realistic case of imperfect information, where we use genetic or other information to assign probabilities to each individual's origin as in situ or outside the population. We use a resampling approach to impute the true population of origin from imperfect assignment information. The integration of data on population of origin with capture-recapture data allows us to determine the contributions of immigration and in situ reproduction to the growth of the population, an issue of importance to ecologists. We illustrate our new models with capture-recapture and genetic assignment data from a population of banner-tailed kangaroo rats Dipodomys spectabilis in Arizona.
Details
- Title
- Augmenting superpopulation capture-recapture models with population assignment data
- Authors/Creators
- Z. Wen (Author/Creator)K.H. Pollock (Author/Creator)J. Nichols (Author/Creator)P. Waser (Author/Creator)
- Publication Details
- Biometrics, Vol.67(3), pp.691-700
- Publisher
- Wiley-Blackwell
- Identifiers
- 991005543325007891
- Copyright
- 2010, The International Biometric Society
- Murdoch Affiliation
- Centre for Fish and Fisheries Research
- Language
- English
- Resource Type
- Journal article
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- 3 Agriculture, Environment & Ecology
- 3.35 Zoology & Animal Ecology
- 3.35.33 Avian Ecology
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