Abstract: Letter to Nature Editor, in response to: In their plea for bringing Pleistocene wildlife to the New World (“Re-wilding North America” Nature 436, 913–914; 2005), Josh Donlan and colleagues do not discuss successful efforts to ensure long-term survival of large carnivores in Africa and Asia. A few examples are given.

Abstract: The suggestion in the early 20th century that top predators were a necessary component of ecosystems because they hold herbivore populations in check and promote biodiversity was at Wrst accepted and then largely rejected. With the advent of Evolutionary Ecology and a more full appreciation of direct and indirect effects of top predators, this role of top predators is again gaining acceptance. The previous views were predicated upon lethal effects of predators but largely overlooked their non-lethal effects. We suggest that
conceptual advances coupled with an increased use of experiments have convincingly demonstrated that prey experience costs that transcend the obvious cost of death. Prey species use adaptive behaviours to avoid predators, and these behaviours are not cost-free. With predation risk, prey species greatly restrict their use of available habitats and consumption of available food resources. Effects of top predators consequently cascade down to the trophic levels below them. Top predators, the biggies, are thus both the targets of and the means for conservation at the landscape scale.

Abstract: While the world is becoming increasingly interconnected and interdependent, physically and culturally, the wildlife of remote mountain regions is being affected both positively and negatively by such interconnectedness. In the case of snow leopards, the conservation impact has been largely, and rather unexpectedly, positive: Species-focused conservation projects, such as Project Snow Leopard (PSL) in
Gilgit-Baltistan, remain mainly externally driven initiatives. PSL, initiated as a small pilot project in 1998, has relied on an approach that includes the use of an insurance scheme, the deployment of mitigation measures, and the empowerment of local governance. This approach has been successful in
reducing the conflict with snow leopards and has built greater tolerance toward them. PSL is managed by local communities and cofinanced by them. PSL communities throughout the region are bearing the burden of carnivore conservation, and they are unwittingly subsidizing their populations by ‘‘feeding’’
them their livestock even though they are an economic threat to them. In this article, we argue that external intervention in the form of efforts that help alleviate the consequences of conflict through local empowerment have had a positive impact on the local mountain societies. We also show that such interventions have resulted in tangible conservation results, with the number of snow leopards staying at least stable. Our experience also shows that while the incentive component is critical, it is also part of a larger approach—one that includes developing and supporting local governance structures, improving access to education, and offering a range of tools to reduce the conflict that can be implemented
locally. Finally, we suggest that investing in this approach— one that recognizes the species and local-context complexities surrounding the implementation of conservation incentives—can continue to inform international practices and guidelines for reducing human–wildlife conflicts worldwide.

Abstract: In the Nepalese Himalaya, conflict with rural communities due to livestock predation to large carnivores like snow leopard, common leopard, wolf and wild dog has risen sharply in recent years. This increase is attributed to a number of factors, including implementation and enforcement of wildlife protection laws (which have permitted a recovery in carnivore numbers), the creation of protected areas (which serve as refuges from which predators can populate the surrounding area), the depletion of natural prey due to poaching and loss of habitat, and lax livestock herding practices. However, little information is presently available upon which to design remedial programs. U.S. AID provided research funding for an in-depth assessment of snow leopard predation in the Annapurna Conservation Area (ACAP), an new innovative approach to nature conservation. Baseline information on livestock numbers and mortality were gathered during household interviews, followed by field surveys to assess animal husbandry systems, map pastures, establish periods of use and estimate stocking rates, and to characterize habitat using randomly located plots. Data substantiate the existence of depredation “hotspots”, where high loss occurs, in some cases exceeding 14% to 20% of the livestock population over a short period. Losses varied seasonally, and from year to year. Small-bodied stock like goat and sheep were more vulnerable than large-bodied stock like yak, although horses were especially vulnerable. Factors most closely associated with predation included lack of guarding (or very lax supervision), especially during the daytime, and repeated use of pastures where livestock depredators were known to be actively hunting. Herders usually reacted to repeated depredation incidents by attempting to trap or shoot the suspected culprit until losses declined to an acceptable level. As large carnivore populations become increasingly fragmented and genetically isolated, new management strategies are urgently needed, especially within the buffer zones and intervening corridors between separated parks and reserves. People reside within nearly all Himalayan protected areas, and such issues as loss of livestock and competition between wildlife and livestock cannot be avoided. A plan is offered for alleviating livestock loss in the Annapurna Conservation Area that involves local institutions in decision-making, rewards sound husbandry practices, strengthens indigenous institutions, without further eroding ACAP’s unique biological diversity and diverse carnivore population. The authors believe these measures and ideas could be fruitfully extended to other parts of the Himalaya.