{"id":47150,"date":"2025-08-05T13:56:19","date_gmt":"2025-08-05T13:56:19","guid":{"rendered":"https:\/\/www.newsbeep.com\/ca\/47150\/"},"modified":"2025-08-05T13:56:19","modified_gmt":"2025-08-05T13:56:19","slug":"when-endangered-wild-animals-try-to-mate-with-domestic-relatives-both-wildlife-and-people-lose","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ca\/47150\/","title":{"rendered":"When endangered wild animals try to mate with domestic relatives, both wildlife and people lose"},"content":{"rendered":"

Fatal attractions are a standard movie plotline<\/a>, but they also occur in nature, with much more serious consequences. As a conservation biologist<\/a>, I\u2019ve seen them play out in some of Earth\u2019s most remote locations, from the Gobi Desert to the Himalayan Highlands.<\/p>\n

In these locales, pastoralist communities<\/a> graze camels, yaks and other livestock across wide ranges of land. The problem is that often these animals\u2019 wild relatives live nearby, and huge, testosterone-driven wild males may try to mate with domestic or tamed relatives.<\/p>\n

Both animals and people lose in these encounters. Herders who try to protect their domestic stock risk injuries, emotional trauma, economic loss and sometimes death<\/a>. Wild intruders can be displaced, harassed or killed.<\/p>\n

These clashes threaten iconic and endangered species, including Tibetan wild yaks<\/a>, wild two-humped camels<\/a> and Asia\u2019s forest elephants<\/a>. If the wild species are protected, herders may be forbidden from chasing or harming them, even in self-defense.<\/p>\n

Human-wildlife conflict is a widely recognized challenge around the world, but clashes in these remote outposts receive less attention than those in developed areas, such as pumas ranging into U.S. exurbs<\/a>. As I see it, protecting threatened and endangered species won\u2019t be possible without also helping herders whose lives are affected by conservation policies.<\/p>\n

The drive to mate<\/p>\n

The force driving these raids is pure biology. All domestic animals are descended from wild ancestors<\/a>. Steeped in evolution, natural selection has favored males who inseminate the most females \u2013 and females who leave reproductive offspring of their own. Attractions can go both ways: Sometimes smaller or less aggressive domestic males may mate with wild females.<\/p>\n

Many herding societies contend with this challenge. In the Hindu Kush mountain system<\/a> of Central Asia and farther east, Tibetans, Uyghurs, Changpa and Nepalis raise domestic yaks, which provide meat, milk, transportation and shaggy hides for clothing.<\/p>\n

Wild yaks were once thought extinct in Nepal, until a team led by wildlife biologist Naresh Kusi<\/a> rediscovered them in 2014<\/a>. Now aggressive contests between domestic and wild yaks are headaches for local herders.<\/p>\n

In Africa, Namib Desert mountain zebras, a vulnerable species<\/a>, have been bred by donkeys<\/a>. In northern China and Mongolia, domestic and reintroduced Przewalski horses<\/a> coexist in tense zones where herders work to prevent genetic exchanges. In Southeast Asia, wild cattle species, such as gaur<\/a> and banteng<\/a>, have mixed extensively<\/a> with domestic cattle and buffaloes.<\/p>\n

In northern realms, caribou and reindeer, which are the same species, Rangifer taranadus, both occur in wild forms. Reindeer have also been domesticated and are central to Indigenous herding cultures<\/a> in Scandinavia, Russia, Canada and Alaska. Caribou slaughters and separation efforts have not prevented mixing.<\/p>\n

In temperate zones of Europe and Asia, native species such as ibex, or wild goats<\/a>, and argali, the world\u2019s largest wild sheep<\/a>, cause trouble by mingling with domesticated goats and sheep. In South America, guanacos \u2013 relatives of wild camels<\/a> \u2013 range from sea level to the snow line in the Andes and attempt to interbreed with domestic llamas.<\/p>\n

\"AThe wild and the tame<\/p>\n

Across Earth, humans raise about 5 billion head of livestock<\/a>. In most places, wild ancestors are long gone, so herders don\u2019t have to contend with interbreeding.<\/p>\n

The wild relatives that survive typically are rare or endangered. For example, there are about 43 million domestic donkeys<\/a>, also known as asses, worldwide. But in the Horn of Africa, the sole remaining spot with native ancestors, fewer than 600 wild asses survive today<\/a>.<\/p>\n

The same asymmetry exists in the Himalayan Highlands, where wild yaks \u2013 a critically important species for Tibetan people \u2013 are estimated to number perhaps 15,000 to 20,000, compared with 14 million domestic yaks<\/a>. Globally, for each wild Bactrian camel, there are about 2,500 domesticated brethren<\/a>.<\/p>\n

Even in protected areas of northern India, western Mongolia and western China, the abundance of domestic livestock outnumbers that of hoofed wildlife by a factor of about 19 to 1<\/a>.<\/p>\n

As wild populations shrink, the remaining males have smaller mating pools, which makes them more likely to pursue domestic females. But hybridizing with domestic animals could lead to some wild animals\u2019 extinction<\/a> as genetically distinct species.<\/p>\n

No easy resolution<\/p>\n

For pastoralists, earning a living along Earth\u2019s rarified edges is hard enough without wild animals raiding their herds. Frequently, the only legal weapons herders can use to defend their livestock or themselves are sticks and stones. Guns are rare and often illegal, either because the wild species is protected or because the nation bans or restricts gun ownership<\/a>.<\/p>\n

\"FourA wild male yak charges herders in northwestern Nepal as they attempt to protect domestic female yaks. Tara Bate, CC BY-ND<\/a><\/p>\n

Global conservation policy recognizes herders\u2019 plight. The International Union for the Conservation of Nature<\/a>, a network of governments and nongovernmental organizations that work to conserve life on Earth, affirms that Indigenous peoples play key roles<\/a> in protecting threatened species and maintaining these wild animals\u2019 genetic purity.<\/p>\n

Many relevant national governments also support both protecting wild species and aiding nomadic herders, at least in principle. These broad goals aren\u2019t always upheld at the local level, however, especially when the people in question are pastoralists living in remote areas where it\u2019s hard to access government help.<\/p>\n

\"AConservation biologist Joel Berger, left, discusses wild yak conflicts with the Tsering family of nomadic pastoralists in the Tibetan Autonomous Region, China. Aili Kang\/Wildlife Conservation Society, CC BY-ND<\/a>Coexistence in a crowded world<\/p>\n

When pastoralists need to protect their herds from other threats, such as snow leopards, brown bears or wolves, their main options are putting up fences, avoiding areas where carnivores are known to be present or killing the predators. Herders also castrate their domestic animals to keep them from fighting with other animals in the herd or attacking humans<\/a>.<\/p>\n

None of these options work well for dealing with wild progenitors of species such as yaks and camels. Castrating wild males or reducing their geographic ranges makes it harder to protect and increase threatened species.<\/p>\n

Fencing is harmful because it can keep wild grazers from moving seasonally to different habitats. Wildlife migrations aren\u2019t just important for the herd: As the animals roam and graze across broad areas, they fertilize grasslands. Arming pastoralists against wayward and aggressive wild males may seem justified, but destroying endangered species is a poor conservation path<\/a>.<\/p>\n

Respect for Indigenous peoples\u2019 traditional cultural practices is important. So are international agreements to protect biodiversity<\/a>. In my view, these human-wildlife clashes demand serious discussions that bring together herders, conservationists and local and national governments to develop pragmatic strategies.<\/p>\n

Without creative solutions to prevent intermingling, more iconic animals will follow the disappointing paths of wild reindeer<\/a>, bison<\/a> and other wild species struggling to thrive as they increasingly collide with human societies.<\/p>\n

This article is republished from The Conversation<\/a>, a nonprofit, independent news organization bringing you facts and trustworthy analysis to help you make sense of our complex world. It was written by: Joel Berger<\/a>, Colorado State University<\/a> <\/p>\n

Read more:<\/p>\n

Joel Berger receives funding from Colorado State University and the Wildlife Conservation Society. <\/p>\n","protected":false},"excerpt":{"rendered":"Fatal attractions are a standard movie plotline, but they also occur in nature, with much more serious consequences.…\n","protected":false},"author":2,"featured_media":47151,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[49,48,32775,18156,295,66,32777,32776],"class_list":["post-47150","post","type-post","status-publish","format-standard","has-post-thumbnail","category-environment","tag-ca","tag-canada","tag-domestic-animals","tag-endangered-species","tag-environment","tag-science","tag-wild-bactrian-camel","tag-wild-species"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/47150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/comments?post=47150"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/47150\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media\/47151"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media?parent=47150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/categories?post=47150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/tags?post=47150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}