No inbreeding depression observed in Mexican and red wolf captive breeding programs

Steven T. Kalinowski, Philip W. Hedrick, Philip S. Miller

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Inbreeding depression is expected to affect populations of outbreeding mammals in inverse proportion to their population size and can affect whether small populations persist or go extinct. We use studbook records to examine the effect of inbreeding upon juvenile viability and litter size in two endangered species that have recently been reintroduced to the wild: the Mexican wolf (Canis lupus baileyi) and the red wolf (C. rufus). We found that neither juvenile viability nor litter size was lowered by inbreeding in either taxon. In fact, both captive breeding programs appear to have less lethal equivalents than the median estimate for mammals. We did find that year of birth was correlated with increasing viability in both taxa. We conclude that there is no evidence that inbreeding depression will prove a major obstacle to the success of either recovery effort.

Original languageEnglish (US)
Pages (from-to)1371-1377
Number of pages7
JournalConservation Biology
Volume13
Issue number6
DOIs
StatePublished - 1999

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captive breeding
Mammals
inbreeding depression
wolves
litter size
viability
inbreeding
breeding
mammal
mammals
outbreeding
Canis lupus
endangered species
Recovery
population size
programme

ASJC Scopus subject areas

  • Ecology
  • Environmental Science(all)
  • Environmental Chemistry
  • Nature and Landscape Conservation

Cite this

No inbreeding depression observed in Mexican and red wolf captive breeding programs. / Kalinowski, Steven T.; Hedrick, Philip W.; Miller, Philip S.

In: Conservation Biology, Vol. 13, No. 6, 1999, p. 1371-1377.

Research output: Contribution to journalArticle

Kalinowski, Steven T. ; Hedrick, Philip W. ; Miller, Philip S. / No inbreeding depression observed in Mexican and red wolf captive breeding programs. In: Conservation Biology. 1999 ; Vol. 13, No. 6. pp. 1371-1377.
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