Grizzly bear (Ursus arctos horribilis) locomotion: gaits and ground reaction forces
نویسندگان
چکیده
منابع مشابه
Grizzly bear (Ursus arctos horribilis) locomotion: gaits and ground reaction forces.
Locomotion of plantigrade generalists has been relatively little studied compared with more specialised postures even though plantigrady is ancestral among quadrupeds. Bears (Ursidae) are a representative family for plantigrade carnivorans, they have the majority of the morphological characteristics identified for plantigrade species, and they have the full range of generalist behaviours. This ...
متن کاملGrizzly bear (Ursus arctos horribilis) locomotion: forelimb joint mechanics across speed in the sagittal and frontal planes.
The majority of terrestrial locomotion studies have focused on parasagittal motion and paid less attention to forces or movement in the frontal plane. Our previous research has shown that grizzly bears produce higher medial ground reaction forces (lateral pushing from the animal) than would be expected for an upright mammal, suggesting frontal plane movement may be an important aspect of their ...
متن کاملGrizzly bears (Ursus arctos horribilis) and black bears (Ursus americanus) prevent trabecular bone loss during disuse (hibernation).
Disuse typically causes an imbalance in bone formation and bone resorption, leading to losses of cortical and trabecular bone. In contrast, bears maintain balanced intracortical remodeling and prevent cortical bone loss during disuse (hibernation). Trabecular bone, however, is more detrimentally affected than cortical bone in other animal models of disuse. Here we investigated the effects of hi...
متن کاملPredicting Grizzly Bear (Ursus arctos) densities in British Columbia using a multiple regression model
We determined the relationships between Grizzly Bear density and ultimate measures of ecosystem productivity and mortality at a landscape scale using multiple linear regression and field based density estimates from Grizzly Bear populations across western North America. We found that Grizzly Bear densities in non-coastal environments were positively related to the mean annual rainfall, to the p...
متن کاملPhysiology of the European brown bear (Ursus arctos arctos)
Although the American black (Ursus americanus) and American brown (grizzly) (Ursus arctos horribilis) bears have been the subjects of intensive physiological research, very little so far, has been done to understand the physiology of the European brown bear (Ursus arctos arctos). In our laboratory the research on the physiology of European brown bears started 10 years ago. Between 1987 and 1997...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2015
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.121806