Factors influencing red wolf–coyote hybridization in eastern North Carolina, USA

摘要: Abstract Understanding the mechanisms that govern interspecific hybridization is vital to mitigating its impacts on endangered species. Research suggests behavioral such as mate choice and social disruption can regulate rate at which hybridizing species interbreed. We investigated events between red wolves ( Canis rufus ) coyotes latrans in eastern North Carolina evaluate potential factors may promote these Specifically, we examined spatial location, breeding experience, breeder origin (captive vs wild), ancestry (pure hybrid), past history of animal. There were over four times (126 30) many wolf litters hybrid a 13 year time period. Over half followed stable pair due mortality one or both breeders. Of 69% anthropogenic causes, primarily gunshot prior season. Both male female interbred with coyotes, although majority (90%) observed involved females. Wolves produced tended be young, first-time breeders slightly higher levels coyote ancestry. Only 16% inner core recovery area. Our results suggest pairs facilitates hybridization, jeopardizing future wolf. They also indicate importance forces, especially stability, regulating hybridization.