Pleistocene-Holocene vicariance, not Anthropocene landscape change, explains the genetic structure of American black bear (Ursus americanus) populations in the American Southwest and northern Mexico

更新世-全新世的替代性，而不是人类世的景观变化，解释了美国西南部和墨西哥北部的美洲黑熊 (Ursus americanus) 种群的遗传结构