How much do we know about the current extinction rate?
Tóm tắt
Từ khóa
Tài liệu tham khảo
Mohsin, 1983
King, 1981
Raup, 1984, 81, 801
Erwin, 1982, Coleopt Bull, 36, 74
Erwin, 1983, 59
Whelan, 1992, The Spectator
World Conservation Monitoring Centre, 1992
Collar, 1988, Birds to Watch: ICBP Checklist of the World's Threatened Birds, 8