Confronting the Challenge: Integrated Approaches to Mitigate the Impact of Free-Ranging Dogs on Wildlife Conservation

Free-ranging dogs (Canis lupus familiaris) pose a significant but often overlooked threat to wildlife populations and global conservation efforts while also having the potential to contribute positively to conservation initiatives. As generalist predators and scavengers, these adaptable animals can lead to biodiversity loss through predation, disease transmission, competition, and behavioral disruption of native species. This review synthesizes global studies on their ecological impact, highlighting notable cases of predation on endangered species, such as the markhor (Capra falconeri cashmiriensis) in Pakistan and elephant seals (Mirounga angustirostris) in Mexico, as well as the spread of zoonotic diseases like Echinococcus spp. and canine distemper. A growing concern is hybridization between free-ranging dogs and wild canids. Such genetic mixing can erode local adaptations, reduce genetic purity, and undermine conservation efforts for wild canid populations. Current management strategies—including lethal control, trap–neuter–release, and vaccination—have produced mixed results and face challenges related to data limitations, regional variability, and cultural barriers. This review advocates for integrated, context-specific management approaches that consider ecological, social, and economic dimensions. Future research should prioritize standardized definitions and data collection, long-term evaluation of intervention effectiveness, and the socio-economic drivers of dog–wildlife interactions to develop sustainable solutions for mitigating the multifaceted threats imposed by free-ranging dogs to global diversity.