The brown bear (Ursus arctos) is one of the most omnivorous animals in the world and has been recorded to consume the greatest variety of foods of any bear.[1] Throughout life, this species is regularly curious about the potential of eating virtually any organism or object that they encounter. Certainly no other animal in their given ecosystems, short perhaps of other bear species and humans, can claim to feed on as broad a range of dietary opportunities. Food that is both abundant and easily obtained is preferred. Their jaw structure has evolved to fit their dietary habits. Their diet varies enormously throughout their differing areas based on opportunity.[2][3] In spring, winter-provided carrion, grasses, shoots, sedges and forbs are the dietary mainstays for brown bears from almost every part of their distribution.[1] Fruits, including berries, become increasingly important during summer and early autumn. Roots and bulbs become critical in autumn for some inland bear populations if fruit crops are poor.[1] The dietary variability is illustrated in the western United States, as meat made up 51% of the average year-around diet for grizzly bears from Yellowstone National Park, while it made up only 11% of the year-around diet for grizzlies from Glacier National Park a few hundred miles to the north.[4]
^ abcCarnivores of the World by Dr. Luke Hunter. Princeton University Press (2011), ISBN 9780691152288
^"Mammalian Species- Ursus arctos" (PDF). American Society of Mammalogists, Smith College. 23 April 1993. Archived from the original (PDF) on 2017-03-31.
^McDonald, D., & Norris, S. (2001). The new encyclopedia of mammals. Oxford University Press.
^Jacoby, M. E., Hilderbrand, G. V., Servheen, C., Schwartz, C. C., Arthur, S. M., Hanley, T. A., Robbins, C.T. & Michener, R. (1999). "Trophic relations of brown and black bears in several western North American ecosystems". The Journal of Wildlife Management. 63 (#3): 921–929. doi:10.2307/3802806. JSTOR 3802806.{{cite journal}}: CS1 maint: multiple names: authors list (link)
and 30 Related for: Dietary biology of the brown bear information
carrion, grasses, shoots, sedges and forbs are thedietary mainstays for brownbears from almost every part of their distribution. Fruits, including berries...
The Ussuri brownbear (Ursus arctos lasiotus), also known as the Ezo brownbear, Russian grizzly bear, or the black grizzly bear, is a subspecies of the...
Thebrownbear (Ursus arctos) is a large bear species found across Eurasia and North America. It is one ofthe largest living terrestrial members of the...
found in caves. This reflects the views of experts that cave bears may have spent more time in caves than thebrownbear, which uses caves only for hibernation...
their dietary requirements. The giant panda is exclusively found in six mountainous regions in a few provinces. It is also found in elevations of up to...
The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to thebrownbear, and the two species can...
especially the white-tailed eagle, which tends to have a slightly longer wingspan as well. There are many differences in thedietarybiologyof these species...
than brown and Asian black bears. It shares features of insectivorous mammals and evolved during the Pleistocene from the ancestral brownbear through...
The Tremarctinae or short-faced bears is a subfamily of Ursidae that contains one living representative, the spectacled bear (Tremarctos ornatus) of South...
The sun bear (Helarctos malayanus) is a species in the family Ursidae (the only species in the genus Helarctos) occurring in the tropical forests of Southeast...
Education Act of 1994 (DSHEA) defines the term "dietary supplement" to mean a product (other than tobacco) intended to supplement the diet that bears or contains...
"Dietary niche separation of three Late Pleistocene bear species from Vancouver Island, on the Pacific Northwest Coast of North America". Journal of Quaternary...
The Kermode bear, sometimes called the spirit bear (Ursus americanus kermodei), is a subspecies ofthe American black bear and lives in the Central and...
than to the sloth bear. Nevertheless, this may be single observation only; according to thedietary habits of sloth bears, while sloth bears prefer termites...
spectacled bears' herbivorous dietary preferences. The spectacled bear's sense of smell is extremely sensitive. They can perceive from the ground when...
DV) ofthedietary minerals phosphorus and potassium (table). While fresh A. bisporus only contains 0.2 micrograms (8 IU) of vitamin D per 100 g, the ergocalciferol...
Mary A. (February 1977). "Further Evidence for Hibernation ofBears". Bears: Their Biology and Management. 4 (1): 43–47. doi:10.2307/3872841. JSTOR 3872841...
which is rare and usually due to an underlying problem with digesting dietary fat rather than from a diet low in vitamin E, can cause nerve problems...
deer, wild boar, brownbear, wolves, red foxes, cave hyena and cave lions. Its diet was likely grazing dominated, similar to that of modern H. amphibius...
the giant panda, which is a bear, though both possess elongated wrist bones or "false thumbs" used for grasping bamboo. The evolutionary lineage of the...
activity. Dietary retinol is absorbed from the digestive tract via passive diffusion. Unlike retinol, β-carotene is taken up by enterocytes by the membrane...
more ofthe Daily Value, DV) of vitamin B6 and a moderate source (10–19% DV) of vitamin C, dietary fiber, and riboflavin (table). "The pineapple, the mangosteen...
ungulates which bear weight equally on two (an even number) of their five toes: the third and fourth, often in the form of a hoof. The other three toes...
The koala (Phascolarctos cinereus), sometimes called the koala bear, is an arboreal herbivorous marsupial native to Australia. It is the only extant representative...
may be reliable indicators of diet in mammals, with such morphological adaptation having been observed in bears. The variety of different animals that are...
and micronutrient content. They are a moderate source ofdietary fiber. In 2018, world production of raw figs was 1.14 million tonnes, led by Turkey and...
Global Information