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| Asiatic Black Bear - Ursus thibetanus | |
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| Tweet Topic Started: Jan 7 2012, 07:55 PM (6,032 Views) | |
| Taipan | Jan 7 2012, 07:55 PM Post #1 |
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Asiatic Black Bear - Ursus thibetanus![]() The Asiatic Black Bear (Ursus thibetanus), also known as the Tibetan black bear, the Himalayan black bear, or the moon bear, is a medium sized, sharp-clawed, black-coloured bear with a distinctive white or cream "V" marking on its chest. It is a close relative of the American black bear with which it is thought to share a European common ancestor. It grows to approximately 130 to 190 cm (4¼ to 6¼ ft) in length. Males weigh between 110 and 150 kg (240 to 330 lb) and females weigh between 65 to 90 kg (140 to 200 lb). The bear's life span is around 25 years. The Asiatic Black Bear has a wide distribution range spanning from the east to west of the Asian continent. This bear can be found in the forests of hilly and mountainous areas in East Asia and South Asia, including Afghanistan, Pakistan, northern India, Nepal, Sikkim, Bhutan, Burma, southern Siberia in Russia, northeastern China, Taiwan and Japan. It can be found in areas with elevations as high as 4,700 m (9,900 feet), but in lower lands as well. In some parts of its range, the Asiatic black bear shares its habitat with the larger and stronger brown bear (Ursus arctos). However, the smaller black bear has an advantage over its competitor: its climbing skills which help it reach for fruit and nuts in the trees. Asiatic Black Bears share Giant Panda habitat in China's Wolong Reserve, where they feed occasionally, among other things, on bamboo, which is their more specialized relatives' favorite food. The Asiatic Black Bear type that is found in Taiwan is the Formosan Black Bear subspecies. The Asiatic Black Bear is an omnivore which consumes a great variety of foods including fruit, berries, grasses, seeds, nuts, invertebrates, honey and meat (fish, birds, rodents and other small mammals as well as carcasses). The Asiatic Black Bear is thought to be somewhat more carnivorous than its American cousin. Nevertheless, meat only makes up a small part of its diet. The bear has been known to be quite aggressive towards human beings (more so than the American black bear); there have been numerous records of bear attacks and killings. This is probably mainly due to the fact that the Asiatic Black Bear is more likely to come into contact with people, and will often attack if startled. The Asiatic Black Bear is listed as vulnerable on the World Conservation Union's (IUCN's) Red List of Threatened Animals. It is threatened mainly by deforestation and habitat loss. The bears are also killed by farmers due to the threat they pose to livestock, and they are also unpopular for their habit of stripping bark from valuable timber trees. Asiatic Black Bears are also threatened by hunting, especially for their gall bladders to obtain bile, which is used in traditional Chinese medicine. Since China outlawed the poaching of native bears in the 1980s, bear bile has been supplied to Chinese consumers by special farms, where the bears are kept constantly caged and restrained while catheters inserted in their gall bladders allow bile to drip into a container and be collected. Supporters of this practice contend that, without these farms, the demand for bear bile would create a tremendous incentive for poaching and put the already endangered species at even greater risk. Critics, however, assert that the practice is patently cruel and inhumane, and that synthetic bear bile, ursodeoxycholic acid, is just as medicinally effective as real bear bile, and in fact much cheaper. Asiatic Black Bear |
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| Ursus arctos | Jan 11 2012, 12:01 AM Post #2 |
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Autotrophic Organism
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| firefly | Aug 28 2012, 08:17 AM Post #3 |
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Herbivore
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This specie did existed in Iberian Peninsula and in some more other regions/countries, like France or Italy ( and of course that it did existed in more European countries), until Late Pleistocene. It represented a different subspecie, U. thibetanus mediterraneus. A recolonization, would be expected if humans weren´t here. Edited by firefly, Aug 28 2012, 08:27 AM.
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| Warsaw2014 | Nov 23 2014, 10:37 PM Post #4 |
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Herbivore
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![]() Sources of information: 1. Bromley, 1956; 2. Bromley, 1965; 3. Bromley, 1968; 4. Geptner et al., 1967; 5. Suhomirov, 1976; 6. Hramtsov, 1979; 7. Kucherenko, 1972; 8. Bazylnikov, 1977; 9. Katalog mlekopitaushich , 1981; 10. Batalov, 1977; 11. Dunishenko, 1977. Compiled by V. Dezhkin, NP Lavrov. nature.air.ru/doc/mammal/1_20.htm Edited by Warsaw2014, Nov 23 2014, 10:43 PM.
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| Sicilianu | Oct 22 2015, 01:52 AM Post #5 |
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Omnivore
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The so-called Shennongjia white bear I was intrigued when I discovered this title as perhaps an instance of a white morph in Asiatic black bears, as it seems other bears in genus Ursus species possess a "white morph," in addition to brown and black. Unfortunately, this appears to just be an albino Asiatic black bear. ![]() ![]() ![]() Why they would not recognize an albino and actually do genetic testing to see if it was a separate species/subspecies is beyond me. [see paper abstract below] Yi Chuan. 2006 Oct;28(10):1237-41. [A molecular phylogeny of Shennongjia white bear based on mitochondrial cytochrome b gene sequence]. [Article in Chinese] Wang HJ1, Zhang ZM, Liu ZL, Xiong GM. Author information Abstract The phylogenetic relationship of Shennongjia white bear has been an open question. Total DNA was extracted and sequenced from hair and feces of Shennongjia white bear. Based on the partial Cyt b gene sequence obtained from the samples, the authors aligned them using the Clustal W software program. The MEGA software was used to analyze the divergences and base substitutions of the partial Cyt b gene among the 11 species: Shennongjia white bear, Selenarctos thibetanus, Euarctos americanus, Helarctos malayanus, Ursus arctos, Thalarctos maritimus, Melursus ursinus, Procyon lotor, Ailuropoda melanoleuca, Ailurus fulgens and Tremarctos ornatus. The phylogenetic trees constructed by multiple methods (NJ and MP) supported nearly the same topology. Our molecular results show that the sequence divergence between Shennongjia white bear and Asiatic black bear (Selenarctos thibetanus) is lower than that between other species. Edited by Sicilianu, Oct 22 2015, 01:57 AM.
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| Ceratodromeus | Oct 31 2015, 04:18 AM Post #6 |
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Aspiring herpetologist
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Some interesting records concerning the diet of this bear![]() (From Vertebrate carnivores and predation in the oriental region) Perhaps it's because I'm not very well versed in ursids, but I was unaware of these bears taking large prey like mentioned above. Edited by Ceratodromeus, Feb 6 2016, 12:49 AM.
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| Nergigante | Apr 23 2016, 08:10 AM Post #7 |
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Carnivore
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![]() ![]() ![]() ![]() ![]() ![]() about the max size,the famed British sportsman known as the "Old Shekarry" wrote of how a black bear he shot in India probably weighed no less than 363 kg (800 lb) based on how many people it took to lift its body, The largest Asian black bear on record allegedly weighed 200 kg (440 lb). Zoo-kept specimens can weigh up to 225 kg (496 lb), at average males from ussuri older than the age of five can normally weight up to 298 pounds. I found Russian asiatic black bear videos, its kind of hard when I do not know their language: ![]() The Asiatic black bear inhabiting the south of the Russian Far East (RFE) belongs to Ussury subspecies (Ursus thibetanus G. Cuvier 1823). This is the northeastern edge of the species' range. These animals are characterized by black color, a prominent crescent-shaped marking on the chest, and large rounded ears. Mature males are up to 2m in height, and in autumn, after accumulating fat, weigh up to 250 kg. Females are smaller. ![]() ![]() ... ... ... ... ... ... Edited by Nergigante, Apr 23 2016, 03:29 PM.
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| Nergigante | Apr 26 2016, 12:12 PM Post #8 |
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Carnivore
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Asiatic black bear fight: 2:30 ... .. .. |
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| Nergigante | May 1 2016, 01:12 PM Post #9 |
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Carnivore
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I found yellow/gold phased asiatic black bear video: (The yellow black mixed colored asiatic black bear is seen at 2:23) And another blonde phased black bear: ![]() How big do you think these two bears anyone: 6 foot inch ? Asiatic black bear Sitting next to a 5 foot 4/6 inch asian man: Edited by Nergigante, May 2 2016, 02:38 PM.
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| Nergigante | May 6 2016, 08:42 AM Post #10 |
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Carnivore
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I found pictures of hybrids: Asiatic Black bear ursus thibetanus hybrid with ursos arctos ; Denver Zoo ; U.S.A. United States of America, And another asiatic black bear brown bear hybrid : 3:56 Sun bear and asiatic black bear hybrid: ![]() Spectacled bear and asiatic black bear hybrid: ![]() This is the same hybrid but grown up ![]()
Edited by Nergigante, May 6 2016, 09:08 AM.
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| Taipan | May 9 2017, 01:20 PM Post #11 |
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How bears bulk up ahead of the summer: A study into the Asiatic black bear's spring diet Date: May 4, 2017 Source: Pensoft Publishers ![]() A young bear yawning on top of a rock in the Ashio-Nikko mountains. Credit: Hiroshi Yokota; CC-BY 4.0 Much like gym enthusiasts, every year Asiatic black bears seem to be on the lookout for protein-rich food ahead of the summer, so that they can bulk up on lean muscle mass in place of the fat tissue formed last year prior to hibernation. This was concluded in a study by Dr. Shino Furusaka, Tokyo University of Agriculture and Technology and his team, based on direct observations on bears living across an area of about 60 km2 in Japan. The study is published in the open access journal ZooKeys. In order to determine the bears' food preferences and habits, the scientists followed a large number of animals in the Ashio area of the Ashio-Nikko Mountains in Japan from April to July in both 2013 and 2014. To avoid unnecessary intrusion, they stayed at a distance of at least 200 metres using video cameras with telescopic lenses to document the sightings. Having documented the plant species the bears consumed, the researchers studied their nutritional content and made conclusions about the nutrients needed for the species after hibernation. While heavily dependent on food availability, generally the bears were noted to prefer food which is high in protein, but poor in fibre -- likely because their stomachs and intestines were unable to efficiently digest the latter. Furthermore, the protein-rich diet ensures that the muscle mass is rebuilt to replace the lost winter fat. Interestingly, the bears were observed to change their food preferences as spring progressed and that seemed to be linked to the shifts in the nutritional value of the available food. Starting with their observations at the beginning of April, the scientists did not record any feeding behaviour until the end of the month. As leaf flush was yet to occur, the animals were active and feeding on overwintered grass. However, in early May, the bears began consuming newly emerged leaves, grass and, later in the month, they added flowers to their menu. A shift in behaviour occurred in the following months. In June and July, the bears were seen to feed mainly on ants, with a small portion of their food intake consisting of grasses, sika deer carcasses and bees. Curiously, when the scientists looked into the nutritional content of the same plants which the animals sought only a few weeks ago, they found out that now they were significantly poorer in protein and richer in fibre. Another finding showed that the calories in the different items were not related to the choice of food which likely proves that the key factor is none other than the amount of protein, provided that the fibre value is low enough for good digestibility. Understanding the food preferences and habits of animals, as well as the reasons behind them, is essential for the development and revision of habitat management plans. However, previous knowledge of the feeding behaviour of Asiatic black bears has been based solely on faecal analyses which has not provided sufficient details on which nutritional factors influence the use of particular foods. Story Source: Pensoft Publishers. "How bears bulk up ahead of the summer: A study into the Asiatic black bear's spring diet." ScienceDaily. www.sciencedaily.com/releases/2017/05/170504110549.htm (accessed May 8, 2017). Journal Reference: Shino Furusaka, Chinatsu Kozakai, Yui Nemoto, Yoshihiro Umemura, Tomoko Naganuma, Koji Yamazaki, Shinsuke Koike. The selection by the Asiatic black bear (Ursus thibetanus) of spring plant food items according to their nutritional values. ZooKeys, 2017; 672: 121 DOI: 10.3897/zookeys.672.10078 Abstract The present study aimed to investigate the nutritional aspects of the bear diet quantitatively, in order to understand plant food selection in spring. Bears were observed directly from April to July in 2013 and 2014, to visually recognize plant species consumed by bears, and to describe the foraging period in the Ashio-Nikko Mountains, central Japan. Leaves were collected from eight dominant tree species, regardless of whether bears fed on them in spring, and their key nutritional components analyzed: crude protein (CP), neutral detergent fiber (NDF), and total energy. Bears tended to consume fresh leaves of specific species in May, and nutritional analysis revealed that these leaves had higher CP and lower NDF than other non-food leaves. However, CP in consumed leaves gradually decreased, and NDF increased from May to July, when the bears’ food item preference changed from plant materials to ants. Bears may consume tree leaves with high CP and low NDF after hibernation to rebuild muscle mass. |
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The_selection_by_the_Asiatic_black_bear__Ursus_thibetanus__of_spring_plant_food_items_according_to_their_nutritional_values.pdf (510.71 KB)
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