Journal
ANIMAL CONSERVATION
Volume 10, Issue 4, Pages 487-492Publisher
WILEY
DOI: 10.1111/j.1469-1795.2007.00139.x
Keywords
inbreeding depression; survival; generalized linear modelling; maximum likelihood estimation; capture-mark-recapture
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Conservation biologists need to be able to estimate reliably the effects of inbreeding on survival, and need to be able to do so with a range of different data types. Kalinowski and Hedrick described a non-linear maximum likelihood estimation procedure for modelling relationships between survivorship and inbreeding. Although their method is useful for illustrating the concepts involved in modelling such relationships, it is only applicable to simple datasets. We illustrate that the parameter estimates generated by Kalinowski and Hedrick's method are easily obtained using generalized linear modelling procedures available in standard statistical packages, and that these offer several advantages even with simple datasets. We suggest procedures that can be used for modelling relationships between survival and inbreeding with more complex data types, including datasets with multiple and ragged encounters, uncertain detection and random effects.
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