Retrospective investigation of captive red wolf reproductive success in relation to age and inbreeding
| Autor: | K.L. Goodrowe, Suzanne E. MacDonald, W.T. Waddell, K.M. Lockyear |
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| Rok vydání: | 2009 |
| Předmět: |
Conservation of Natural Resources
Population Endangered species Breeding Critically endangered Captive breeding Animals Inbreeding education Retrospective Studies Population Density education.field_of_study Wolves biology Reproductive success Ecology Population size Age Factors Genetic Variation General Medicine biology.organism_classification Fertility Linear Models Animal Science and Zoology Animals Zoo Canis rufus Demography |
| Zdroj: | Zoo biology. 28(3) |
| ISSN: | 1098-2361 |
| Popis: | York University, Toronto, Ontario, CanadaThe critically endangered red wolf (Canis rufus) has been subject to a strictlymanaged captive breeding program for three decades. A retrospective demo-graphic analysis of the captive population was performed based on data from thered wolf studbook. Data analyses revealed a decrease in the effective populationsize relative to the total population size, and changes in age structure andinbreeding coefficients over time. To varying degrees, the probability of successfulbreeding and litter sizes declined in association with increasing dam age and sireinbreeding coefficients. Neonate survival also declined with increasing dam age.Recent changes in strategies regarding breed-pair recommendations have resultedin moderate increases in reproductive success. Zoo Biol 28:214–229, 2009. |
| Databáze: | OpenAIRE |
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