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Exploring Studbooks for Wildlife Management and Conservation pp 179–197Cite as

Inbreeding

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Part of the book series: Topics in Biodiversity and Conservation ((TOBC,volume 17))

Abstract

Studies at the end of the 1970s, on the negative effects of matings between related individuals (consanguineous matings) in zoo populations, can be considered as one of the main driving forces that resulted in introducing genetic management to cooperative breeding programmes. Calculation and interpretation of inbreeding coefficients is discussed. The main focus of this chapter is to detect inbreeding depression in the population directly from life history data in the studbook. The Nepalese red panda studbook population is used as an example. Methods to detect inbreeding depression in different stages of life are presented. Two–way contingency tables are used to test for differences in neonatal and juvenile mortality between inbred and non–inbred individuals. The Donner’s test which adjusts for litter effect is applied. The Kaplan–Meier product limit estimator and Cox proportional hazards regression models are used to detect differences in lifespan in inbred and non–inbred individuals. Different methods to estimate lethal equivalents are presented. These include linear and generalised linear regression, the generalised equation estimator (to adjust for pseudoreplication) and maximum likelihood estimation. Logrank tests are used to detect differences in age–specific fecundity between inbred and non–inbred individuals. The same test is also applied to age–specific unweighted reproductive values, which can be considered as a measure of fitness.

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Notes

  1. 1.

    Although Gregor Mendel published the results on inheritance in 1866, this work remained unknown until 1900 when Hugo de Vries published his work and referred in a footnote to Mendel’s work.

  2. 2.

    Annual zoo inventories include 30 day survival of the newborns for each species. This “tradition” could be the basis for using this survival criterion.

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  1. Population Management and Wildlife Conservation, East Rudham, Norfolk, UK

    F. P. G. Princée

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Princée, F.P.G. (2016). Inbreeding. In: Exploring Studbooks for Wildlife Management and Conservation. Topics in Biodiversity and Conservation, vol 17. Springer, Cham. https://doi.org/10.1007/978-3-319-50032-4_13

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