Visitor Counter

hitwebcounter web counter
Visitors Since Blog Created in March 2010

Click Below to:

Add Blog to Favorites

Grizzly bears, black bears, wolves, coyotes, cougars/ mountain lions,bobcats, wolverines, lynx, foxes, fishers and martens are the suite of carnivores that originally inhabited North America after the Pleistocene extinctions. This site invites research, commentary, point/counterpoint on that suite of native animals (predator and prey) that inhabited The Americas circa 1500-at the initial point of European exploration and subsequent colonization. Landscape ecology, journal accounts of explorers and frontiersmen, genetic evaluations of museum animals, peer reviewed 20th and 21st century research on various aspects of our "Wild America" as well as subjective commentary from expert and layman alike. All of the above being revealed and discussed with the underlying goal of one day seeing our Continent rewilded.....Where big enough swaths of open space exist with connective corridors to other large forest, meadow, mountain, valley, prairie, desert and chaparral wildlands.....Thereby enabling all of our historic fauna, including man, to live in a sustainable and healthy environment. - Blogger Rick

Subscribe via email to get updates

Enter your email address:

Receive New Posting Alerts

(A Maximum of One Alert Per Day)

Monday, March 26, 2018

Ecologist George Wuerthner sent me this article about Gray Wolves in northern Minnesota preying on fish(likely Northern Pike and White Suckers)...........This is the first documentation of Wolves dining on freshwater fish outside of northwest Coastal Alaska and the British Columbia Islands of Canada................Researchers reported that two Wolves in Vogageurs National Park spent 1/2 of their hunting day mid April-mid May 2017 hunting fish rather than Elk, Deer, Beaver, their historical dietary staples in this part of the world


Do wolves hunt freshwater fish in spring as a food source?



In April-May 2017 we documented GPS-collared wolves (V034 and V046) from the same pack in northern Minnesota responding to a spring fish (northern pike and presumably white suckers) run, which to our knowledge is the first description of wolves outside of coastal British Columbia and Alaska using fish as a seasonal food source.

During this period, we opportunistically observed V046 hunting and consuming fish along a single creek, and documented a substantial number of wolf-killed fish in this area. We estimated V034 and V046 spent 43–63% of their daily time budget from mid-April to mid-May hunting and consuming fish at the same creek.

Based on visual observation and the concentration of GPS locations, it appears the wolves targeted shallow, narrow areas along the creek to capture fish. Although short-term responses to alternate foods, such as fish, can be infrequent and challenging to document, they provide valuable insight to the flexibility of wolf hunting and foraging behavior.


Let them eat fish

Wolves, powerful pack hunters who take down elk, moose, and deer,
would rather feast on salmon if given the option.
Scientists knew wolves enjoyed the occasional fillet 
(Wildlife News 2004), but assumed they turned to salmon only 
when their usual prey — big, hoofed mammals — were scarce.
 But a study in Monday’s BMCEcology suggests that when the
 salmon are running, wolves prefer finned food.

No comments: