scholarly journals Negative density-dependent dispersal in the American black bear (Ursus americanus) revealed by noninvasive sampling and genotyping

2012 ◽  
Vol 2 (3) ◽  
pp. 525-537 ◽  
Author(s):  
Justin Roy ◽  
Glenn Yannic ◽  
Steeve D. Côté ◽  
Louis Bernatchez
Keyword(s):  
Ursus Americanus ◽  
Black Bear ◽  
Noninvasive Sampling ◽  
Density Dependent ◽  
American Black Bear ◽  
American Black ◽  
Density Dependent Dispersal

Sarcoptic Mange and Pelodera Dermatitis in an American Black bear (Ursus americanus)

2008 ◽  
Vol 39 (2) ◽  
pp. 257-259 ◽  
Author(s):  
Scott D. Fitzgerald ◽  
Thomas M. Cooley ◽  
Melinda K. Cosgrove
Keyword(s):  
Ursus Americanus ◽  
Black Bear ◽  
Sarcoptic Mange ◽  
American Black Bear ◽  
American Black

Retinal cone photoreceptor distribution in the American black bear ( Ursus americanus )

2020 ◽  
Author(s):  
Jennifer L. Heyward ◽  
Benjamin D. Reynolds ◽  
Melanie L. Foster ◽  
Kate E. Archibald ◽  
Michael K. Stoskopf ◽  
...  
Keyword(s):  
Ursus Americanus ◽  
Black Bear ◽  
Cone Photoreceptor ◽  
American Black Bear ◽  
American Black ◽  
Retinal Cone

scholarly journals Behavior in Free-Living American Black Bear Dens: Parturition, Maternal Care, and Cub Behavior

Animals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1123
Author(s):  
Lynn L. Rogers ◽  
Linda McColley ◽  
Janet Dalton ◽  
Jim Stroner ◽  
Douglas Hajicek ◽  
...  
Keyword(s):  
Ursus Americanus ◽  
Post Partum ◽  
Black Bear ◽  
Geographic Region ◽  
Black Bears ◽  
Free Living ◽  
Future Studies ◽  
American Black Bear ◽  
Eye Opening ◽  
American Black

Denning behavior has long remained the least observed aspect of bear behavior. During 2010–2013, we used webcams, microphones, the internet, and 14,602 h of archived video to document the denning behaviors of two adult wild black bears (Ursus americanus) as they gave birth and cared for four litters through six winters in northeastern Minnesota. Observations included types of dens, labor, pre-parturient genital swelling, birthing positions, post-partum vocalizations, mothers removing amniotic tissues and warming newborn cubs in sub-freezing temperatures, frequency of nursing, cubs establishing nipple order, yearlings suckling, the ingestion of snow and icicles, the ingestion of foot pads, urination and defecation in latrine areas, toilet-licking, eye opening, reciprocal tongue-licking, play, rapid eye movement (REM) sleep and possible dreaming, and reactions to wildlife intruders. The use of this new method for observing natural bear dens allowed the identification of many behaviors undescribed for any species of wild bear in dens. We also discuss the need for future studies and how the depth and duration of black bear hibernation varies with body condition and geographic region.

Blood Picture of the American Black Bear, Ursus americanus

1955 ◽  
Vol 36 (1) ◽  
pp. 134 ◽  
Author(s):  
Arthur Svihla ◽  
Howard Bowman ◽  
Roger Pearson
Keyword(s):  
Ursus Americanus ◽  
Black Bear ◽  
Blood Picture ◽  
American Black Bear ◽  
American Black
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