Notes from Dr. Borkosky

Keep in mind that Bear Glacier is 100% wilderness. Remain twice the height or width away from the icebergs. [103] They will readily consume eggs and nestlings of various birds and can easily access many tree nests, even the huge nests of bald eagles. [93][94][95] Bears may catch the scent of hiding fawns when foraging for something else and then sniff them out and pounce on them. Rondonia has gone from about half a million inhabitants in 1980 to more than 1.5 million in 2009. While paddling around the north side of an island we noticed we had some curious friends swimming about 50 feet away... seals!

For now, the glacier isn’t surging, but you could say that it’s a pretty light sleeper— it does calve a lot. In each incident, by the time we were able to point our cameras to record the action, it was over, with nothing more than some waves to telling us where it happened. Plans for coming years include an international airport. Bear Glacier marks the beginning of the Kenai Fjords National Park from the East.

Unlike grizzly bears, which became a subject of fearsome legend among the European settlers of North America, black bears were rarely considered overly dangerous, even though they lived in areas where the pioneers had settled. In the northeast part of the range (United States and Canada), prime habitat consists of a forest canopy of hardwoods such as beech, maple, birch and coniferous species. The retention of waste during hibernation (specifically in minerals such as calcium) may play a role in the bear's resistance to atrophy.[82]. It's also beautiful and worth the view from a boat or kayak. From left, the glacier is seen in June 5, 1980, May 16, 1989, and May 13, 2011. [5][page needed][38], American black bears tend to be territorial and non-gregarious in nature. [94] If it is able to capture a mother deer in spring, the bear frequently begins feeding on the udder of lactating females, but generally prefers meat from the viscera. km, about three times the size of Luxembourg. [citation needed]. [47] In Yellowstone National Park, a population study found that adult males averaged 119 kg (262 lb) and adult females averaged 67 kg (148 lb). The main causes of deforestation in the Amazon are population growth due to government-promoted immigration, the growth of the wood-products industry in conjunction with the expansion of the road network, and burning for management of pastureland and agricultural fields. Image of the Day The bear was shot while mauling a fourth victim. NIWA scientists stated that this glacier had retreated by 5 kilometers (about 3 miles) over the previous three decades.

Cubs may squeal, bawl or scream when in distress and make a motor-like humming sound when comfortable or nursing. They typically open their eyes after 28–40 days and begin walking after five weeks. In recent years, park visitors have reported suddenly elevated water levels in Bear Glacier Lagoon. Livestock depredations occur mostly in spring. The body temperature of the American black bear does not drop significantly, like other mammalian hibernators (staying around 35 °C (95 °F)) and they remain somewhat alert and active. Deforestation is seen in Rondonia, part of the Brazilian Amazon, June 28, 1975, left, and Aug. 16, 2009. Mexico is the only country where the American black bear is classified as "endangered". [24], According to Dwight Schuh in his Bowhunter's Encyclopedia, American black bears are the third most popular quarry of bowhunters, behind deer and elk.[134]. However, both Arctodus and Tremarctos had survived several other, previous ice ages. [116] The Navajo believed that the Big Black Bear was chief among the bears of the four directions surrounding Sun's house and would pray to it in order to be granted its protection during raids. [121][page needed] In almost every case where open garbage dumps that attracted American black bears were closed and handouts ceased, the number of aggressive encounters dropped. DNA testing was unable to determine whether it was a large American black bear or a grizzly bear. Heat [5][page needed] Once out of hibernation, mother bears may be able to fight off most potential predators. The American black bear is the world's most common bear species. Terminal moraines are built at the face of every glacier where the ice is melting. Final report, Colorado Wildl. Black Bear Woman's children, in turn, killed Grizzly Bear Woman's children. Once the hive is breached, the bears will scrape the honeycombs together with their paws and eat them, regardless of stings from the bees. [40] They move in a rhythmic, sure-footed way and can run at speeds of 25 to 30 miles per hour (40 to 48 km/h). [5][page needed]. The Muir inlet in Glacier Bay National Park and Preserve, Alaska, is seen Sept. 2, 1892, left, and Aug. 11, 2005. American black bears rarely attack when confronted by humans and usually only make mock charges, emit blowing noises and swat the ground with their forepaws. [6] This suggests that U. abstrusus may be the direct ancestor of the American black bear, which evolved in North America. As a result, the cats spend more time killing and less time feeding on each kill. Favored masts such as hazelnuts, oak acorns and whitebark pine nuts may be consumed by the hundreds each day by a single American black bear during the fall. Today, they are primarily limited to sparsely settled, forested areas. Turn on desktop notifications for breaking stories about interest? Snow and Ice. It's melting, sad. [70] The breeding period usually occurs in the June–July period, though it can extend to August in the species' northern range. Watch the Alaskan wilderness awaken on this 6-hour morning cruise through Kenai Fjords National Park from Seward. Bear Glacier is quite spectacular in its own right, especially being the largest in Kenai Fjords. The glacier is just massive and looks amazing in the park. Colorado, Idaho, western Montana and Wyoming, eastern Washington and Oregon and northeastern Utah. The Binhai New Area is seen July 30, 1992, left, and April 8, 2012.

In these images, vegetation is green and water is blue-black. Upslope from the lake, the foot of the glacier is riddled with crevasses — cracks in the ice caused by the glacier’s movement over a rough surface. The overall population of American black bears in the United States has been estimated to range between 339,000 and 465,000,[32] though this excludes populations from Alaska, Idaho, South Dakota, Texas and Wyoming, whose population sizes are unknown. The typically small tail is 7.7–17.7 cm (3.0–7.0 in) long. Don’t be fooled into thinking the glacier is an easy, quick paddle…. Grizzly (and other types of brown) bears can be distinguished by their shoulder hump, larger size and broader, more concave skull. Bear glacier has a third type of moraine. [3] American and Asian black bears are considered sister taxa and are more closely related to each other than to the other modern species of bears. [citation needed], Game animals and shooting in North America, Lisette Waits, David Paetkau, and Curtis Strobeck, "Overview" from, McLellan, B. N. (2011). [96] American black bears have also been recorded similarly preying on elk calves in Idaho[97] and moose calves in Alaska.[98]. Land. [3][7] Although Wolverton and Lyman still consider U. vitabilis an "apparent precursor to modern black bears",[8] it has also been placed within U. The hind legs are relatively longer than those of Asian black bears. Dubai is situated along the Persian Gulf in the United Arab Emirates.

There were so many shades of blue! Four of the eight modern bear species are habitually arboreal (the most arboreal species, the American and Asian black bears and the sun bear, being fairly closely related). [38] However, in the Liard River Hot Springs case, the bear was apparently almost fully dependent on a local garbage dump that had closed and so was starving to death. They are also capable of rapidly learning to distinguish different shapes such as small triangles, circles and squares. Cubs are dependent on their mother's milk for 30 weeks and will reach independence at 16–18 months. Snow and Ice. [80] The bear keeping track of the changing days allows it to awaken from hibernation at the appropriate time of year to conserve as much energy as possible. There's Paddington Bear, Winnie the Pooh, Rupert Bear and many more. Despite living in North America, American black bears are not closely related to brown bears and polar bears; genetic studies reveal that they split from a common ancestor 5.05 million years ago (mya).

Along with the brown bear, it is one of only two of the eight modern bear species not considered by the IUCN to be globally threatened with extinction. It’s much further away than it looks. The Changing the Face of the Earth: Before and After Images, Vintage Photos Give Glimpse Into Early Space Program, Tens of Thousands March Against Climate Change.

Acquired August 27, 2009, this false-color image shows the complex marbled surface of Alaska’s Susitna Glacier. Hibernation in American black bears typically lasts 3–8 months, depending on regional climate. [79], During their time in hibernation, an American black bear's heart rate drops from 40–50 beats per minute to 8 beats per minute and the metabolic rate can drop to a quarter of the bear's (nonhibernating) basal metabolic rate (BMR). [48] Black bears in north-central Minnesota averaged 69.9 kg (154 lb) in 163 females and 124.95 kg (275 lb) in 77 males. For one, the weather was great. [50][page needed] It was found in Nevada and Lake Tahoe region that black bears closer to urban regions were significantly heavier than their arid-country dwelling counterparts, with males near urban areas averaging 138 kg (304 lb) against wild-land males which averaged 115.5 kg (255 lb) whereas peri-urban females averaged 97.9 kg (216 lb) against the average of 65.2 kg (144 lb) in wild-land ones. But spending 18 days in Alaska, it's hard not to experience several other glaciers. Some subspecies do not show as black.

American black bears tend to escape competition from brown bears by being more active in the daytime and living in more densely forested areas. In mountainous areas, they seek southerly slopes at lower elevations for forage and move to northerly and easterly slopes at higher elevations as summer progresses. [56][page needed] The Kutchin typically hunted American black bears during their hibernation cycle. © 2020 ABC News Internet Ventures. This camera provides a daily image that allows Kenai Fjords National Park researchers to monitor the behavior of this lake and, by analyzing the photos, we are working to better understand the timing and frequency of the drainage events that lead to flooding in the proglacial lake at Bear Glacier's terminus. These reductions in metabolic rate and heart rate do not appear to decrease the bear's ability to heal injuries during hibernation. [82][83] A hibernating American black bear loses approximately half the muscular strength compared to that of a well-nourished, inactive human. Every glacier also has lateral moraines where similar melting and deposition is occurring on the sides of the glacier. This is the version of our website addressed to speakers of English in Canada. [24], The current range of American black bears in the United States is constant throughout most of the northeast and within the Appalachian Mountains almost continuously from Maine to northern Georgia, the northern Midwest, the Rocky Mountain region, the West Coast and Alaska. [112], At least one jaguar (Panthera onca) has been recorded to have attacked and eaten a black bear: "El Jefe", the jaguar famous for being the first jaguar seen in the United States in over a century. However, on occasions where they encounter Kodiak or grizzly bears, the larger two brown subspecies dominate them.

Evidence of a bear attack includes claw marks and is often found on the neck, back and shoulders of larger animals.

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