Journal archives for March 2019

March 05, 2019

American Martens in the Apostle Islands

This photo is part of our discovery of American martens on the Apostle Islands. Martens were reintroduced to the Apostle Islands by the State of Wisconsin in the 1950's, but were not seen after the 1960's. Using camera trapping over the past few years we detected American martens at 28 of 87 functioning camera trap sites on 5 of 13 monitored islands and documented the existence of American martens in APIS in Wisconsin for the first time in over 50 years.

Full story:

Posted on March 05, 2019 12:39 PM by maxallen maxallen | 1 observation | 0 comments | Leave a comment

March 07, 2019

Southernmost coastal fisher since Joseph Grinnell

Fishers (Pekania pennanti) are a forest-specialist mesocarnivore and are a species of special concern in California (CDFW 2015a, 2015b). In comparison to the Sierra and Cascade populations, the coastal population is under-studied and the southern extent of its range is not clearly documented (Zielinski et al.

We documented a fisher at the southern edge of Lake County. This is the southernmost documented fisher sighting since Joseph Grinnell. Grinnell, in his review of fisher locations in 1937, noted that fishers may extend as far south as Marin County, but had no definitive proof.

The full documentation of this sighting is available at

Posted on March 07, 2019 12:50 AM by maxallen maxallen | 1 observation | 2 comments | Leave a comment