Tuesday, 16 July 2013

The Asian black bear


The Asian black bear (Ursus thibetanus), also known as the moon bear or white-chested bear, is a medium-sized species of bear, largely adapted forarboreal life, seen across much of the Himalayas and the northern parts of the Indian SubcontinentTaiwan,Korea, northeastern China, the Russian far east and the Honshu and Shikoku islands of Japan. It is classed by the IUCN as a vulnerable species, mostly due todeforestation and active hunting for its body parts. The species is morphologically very similar to some prehistoric bears, and is thought by some scientists to be the ancestor of other extant bear species.Though largely herbivorous, Asian black bears can be very aggressive toward humans, and have frequently attacked people without provocation. The species was described by Rudyard Kipling as "the most bizarre of the ursine species


A huge black bear is looking very great.  


       

Feeding

Asian black bears are omnivorous, and will feed on insectsbeetle larvaeinvertebratestermitesgrubs,carrionbeeseggsgarbagemushroomsgrasses,fruitsnutsseedshoneyherbsacornscherries,dogwoodoak nuts and grain. Though herbivorous to a greater degree than brown bears, and more carnivorous than American black bears, Asian black bears are not as specialised in their diet as pandas are: while pandas depend on a constant supply of low calorie, yet abundant foodstuffs, black bears are more opportunistic and have opted for a nutritional boom-or-bust economy. They thus gorge themselves on a variety of seasonal high calorie foods, storing the excess calories as fat, and then hibernate during times of scarcity. Black bears will eat pine nuts and acorns of the previous year in the April–May period. In times of scarcity, they enter river valleys to gain access to hazelnuts and insect larvae in rotting logs. From mid-May through late June, they will supplement their diet with green vegetation and fruit. Through July to September, they will climb trees to eat bird cherries, pine cones, vines and grapes. On rare occasions they will eat dead fish during the spawning season, though this constitutes a much lesser portion of their diet than in brown bears. In the 1970s, black bears were reported to kill and eat Hanuman langurs in Nepal. They appear to be more carnivorous than most other bears, including American Black Bears, and will kill ungulates with some regularity, including domestic livestock. Wild ungulate prey can include muntjacsserowtaken, wild boar and adult water buffaloes, which they kill by breaking their necks.


No comments:

Post a Comment