Estimating the effect of inbreeding on survival

DP Armstrong, Phillip Cassey

Research output: Contribution to journalArticle

20 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)487-492
Number of pages6
JournalAnimal Conservation
Issue number4
Publication statusPublished - 1 Nov 2007


  • maximum likelihood estimation
  • capture-mark-recapture
  • inbreeding depression
  • generalized linear modelling
  • survival


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