The Lake Tahoe Basin provides environmental conditions and habitats favorable to a diverse array of species. At least 289 species of terrestial and semi-terrestrial vertegrates are found in the Lake Tahoe Basin as residents or regular visitors, including 217 birds, 59 mammals, five amphibians, and eight reptiles. The emphasis of wildlife management in the Tahoe Region is on maintaining and improving the functional and biological characteristics of the ecosystem to support the needs of wildlife. The wildlife standards are intended to enhance the suitability and extent of riparian habitats and maintain and protect special interest species like bald eagle, osprey, and goshawk. Regional programs such as improving forest health and recreational impacts around known nesting areas aim to improve wildlife habitat.