The Russian Far East hosts the world's northernmost tiger population (Amur/Siberian tigers, ~600 wild individuals) and the world's rarest wild cat — the Amur leopard (fewer than 100 wild individuals in the Russia-China border region). Both species have recovered from population lows through protection enforcement, anti-poaching programs, and prey recovery efforts. The Land of the Leopard National Park protects core Amur leopard habitat. Welfare monitoring through camera traps has enabled individual identification and tracking.
The Siberian crane (Leucogeranus leucogeranus) is critically endangered, with fewer than 4,000 individuals in the western population's last flock now effectively extinct and a central population reduced to a handful. The eastern flock (~3,800) migrates from Siberian breeding grounds to Poyang Lake in China. Welfare threats include hunting along migration routes (historic) and habitat loss at Chinese wintering grounds from water management changes. International Crane Foundation coordinates conservation across the flyway.
Wild and semi-domesticated reindeer (Rangifer tarandus) are fundamental to Siberian ecosystems and to indigenous Nenets and Evenki peoples' livelihoods. Climate change is dramatically affecting reindeer welfare: rain-on-snow events (freezing rain coating lichen under ice and preventing feeding) cause mass starvation events; summer warming intensifies insect harassment (flies, mosquitoes) affecting feeding time and body condition; and permafrost thaw changes migration routes and forage availability.
Siberia's rapid permafrost thaw — accelerating with climate change — creates dramatic landscape changes affecting wildlife. Thermokarst lakes form and drain unpredictably; forest fires increase as boreal forests warm and dry; methane and CO2 release from thawing permafrost accelerates global warming. Wildlife welfare impacts include habitat loss for specialists, predator-prey relationship disruption, and emerging infectious diseases from thawed ancient pathogens.