Testing alternative captive breeding strategies with the subsequent release into the wild

Abstract 10.1002/zoo.20058.abs We used the housefly (Musca domestica L.) as an experimental model to compare two strategies for the captive breeding of an endangered species: a strategy to minimize inbreeding and balance founder contributions (termed “MAI” for “maximum avoidance of inbreeding”) versus a scheme to select against less fit individuals (disregarding relatedness). By balancing the […]

The relative effects of mutation accumulation versus inbreeding depression on fitness in experimental populations of the housefly

Abstract Loss of fitness due to inbreeding depression in small captive populations of endangered species is widely appreciated. Populations of all sizes may also experience loss in fitness when environmental conditions are ameliorated because deleterious alleles may be rendered neutral and accumulate rapidly. Few data exist, however, to demonstrate loss in fitness due to relaxed […]

Elimination of inbreeding depression from a captive population of Speke’s gazelle: Validity of the original statistical analysis and confirmation by permutation testing

Abstract 10.1002/(SICI)1098-2361(1998)17:23.3.CO;2-8 The Speke’s gazelle captive breeding program was designed in the early 1980s to simultaneously maintain the population’s genetic diversity while reducing the severity of the inbreeding depression in a situation in which inbreeding could not be avoided. Statistical analyses of the resulting data using both regression techniques and nonparametric exact contingency tests revealed […]

Elimination of inbreeding depression from captive populations: Speke’s gazelle revisited

Abstract 10.1002/(SICI)1098-2361(1997)16:13.3.CO;2-J In a review of the evidence for reduction in the severity of inbreeding depression in Speke’s gazelle [Templeton and Read, pp. 241–261 in Genetics and Conservation: A Reference for Managing Wild Animal and Plant Populations, C.M. Schoenwald-Cox, S.M. Chambers, B. MacBryde, and L. Thomas, eds., Reading, MA, Addison-Weley, 1983; Templeton and Read, Zoo […]

Promiscuity, inbreeding and dispersal propensity in great tits

Mating with relatives leads to inbred offspring, which are likely to experience reduced fitness owing to the expression of deleterious recessive alleles. Constraints in social mate choice do not always allow individuals to avoid pairing with kin. A possible means of inbreeding avoidance is to engage in extrapair copulations with unrelated extrapair individuals. In a […]

Effects of Inbreeding on Skeletal Size and Fluctuating Asymmetry of Peromyscus polionotus Mice

Measurements of size and asymmetry in morphology might provide early indications of damaging effects of inbreeding or other genetic changes in conservation breeding programs. We examined the effects of inbreeding on size and fluctuating asymmetry (FA) in skull and limb bone measurements in experimental populations of three subspecies of Peromyscus polionotus mice that had previously […]