Records of Southern Wolverine, Gulo luscus luteus, in California

Using Anecdotal Occurrence Data for Rare or Elusive Species: The Illusion of Reality and a Call for Evidentiary Standards

“…However, from the 1950s to the 1970s, numerous anecdotal occurrence records were compiled and reported in both primary (Ruth 1954, Jones 1955, Cunningham 1959) and gray literature sources (Bruce and Weick 1973, Schempf and White 1977, CDFG 1978, Kovach 1981. In particular, relying entirely on anecdotal data, Schempf and White (1977) arrived at the remarkable conclusion that wolverines were present throughout most of the mountainous regions of California.…”