Journal Article climate change American pika Ochotona princeps Research Support, U.S. Gov't, Non-P.H.S. Review abundance adaptación climática adaptive capacity cambio climático capacidad adaptativa climate adaptation conservación conservation escalator-to-extinction management manejo occupancy range retraction resilience resiliencia vulnerabilidad vulnerability 保护 恢复力 气候变化 气候适应 管理 脆弱性 适应能力