Spong, Göran
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
Sammanfattning
We studied the Tobacco Root mountain range in southwestem Montana for the presence of grizzly bears and to determine if grizzly bears used this area as a travel corridor connecting to other source populations. Due to the proximity of the Tobacco Root mountain range to other grizzly bear occupied mountain ranges (i.e. Madison, Gallatin, and Gravelly Ranges) we speculated that dispersal of grizzly bears into the Tobacco Roots would be probable. We used non-invasive hair snagging methods, passive infrared cameras, fecal collection, and track identification from the spring of 1999 to the autumn of 2000. We collected and analyzed 255 hair and scat samples and obtained 480 photos. We detected no grizzly bears using the Tobacco Root mountain range as either a travel corridor or a linkage zone. However. the presence of a reproducing black bear population indicated the area might provide suitable grizzly bear habitat. As grizzly bear populations increase and the availability of suitable habitats within the Greater Yellowstone Ecosystem decrease, the Tobacco Root Range is likely to have high potential for grizzly bear occupancy.
Publicerad i
Northwest Science
2004, volym: 78, nummer: 2, sidor: 168-172
Utgivare: WASHINGTON STATE UNIV
SLU författare
UKÄ forskningsämne
Miljö- och naturvårdsvetenskap
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/21249