inbreeding depression


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Related to inbreeding depression: heterosis

inbreeding depression

[′in‚brēd·iŋ di‚presh·ən]
(genetics)
A decrease in fitness and vigor as a result of inbreeding.
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Table 4: Estimates of heterosis inbreeding depression heritability and genetic advance for various seedling ionic and
Severe inbreeding depression in a wild wolf (Canis lupus) population.
Inbreeding depression traits in Pacific abalone Haliotis discus hannai by factorial mating experiment.
Effects from inbreeding depression in free-ranging wolves may include a correlation between survival of pups during their first winter and inbreeding coefficients (Liberg et al., 2005), lesions (Raikkonen et al., 2006), low litter and pack sizes (Fredrickson et al., 2007), and congenital bone deformities (Raikkonen et al., 2009).
The low number of introduced organisms at the beginning of the invasion and the so-called population bottlenecks will reduce genetic diversity and increase inbreeding, which can lead to inbreeding depression and in some introductions to the extinction of the invader.
Although no single threat is responsible for delaying progress in the reintroduction, the cumulative effects of illegal shooting, removal of wolves because of livestock depredations, and reduced fitness due to inbreeding depression result in a consistently high level of wolf mortality.
This, it was claimed, could cause an acute inbreeding depression in future tiger popula-
Vortex incorporate age (or stage) structure, demographic and environmental stochasticity, density dependence, inbreeding depression, systemic pressures such as habitat decline, catastrophic events and metapopulation structure.