1870-3453 1870-3453 S1870-34532018000100310 10.22201/ib.20078706e.2018.1.2225 USA USA Mexico USA 00 00 2018 00 00 2018 89 1 310 320

1962 1-16 1977 3 221-5 1962 35 25-154 1977 1984 29 358-60 2010 1975 88 45-50 1976 21 21-3 1986 4 1-45 1953 1958 39 347-67 1954 35 63-80 2011 2004 151 414-9 1982 124-45 1977 3 127-39 1975 1981 2 1949 1 431-72 IUCN 2017 2017.3 1972 1986 24 1-88 1895 18 551-65 1909 29 1-314 1976 20 495-502 2014 24 1-37 Semarnat 2010 2002 2011 2011 24 1-14 United States Fish and Wildlife Service 2009 74 36152-8 United States Fish and Wildlife Service 2010 75 53615-29 1830 1993 2