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Topic: Northern River Otter

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	Northern River Otter - Wikipedia, the free encyclopedia
		These otters can be found all across North America including inland waterways and coastal bays in Alaska, Canada, the northern United States and the Gulf and Atlantic coasts of the U.S However, their numbers have significantly dropped since Europeans came to the Americas.
		Otters have sexual dimorphism, as the male is larger than the female.
		Otters are powerful swimmers, but can also travel quickly on land and often propel themselves into a rapid slide on their bellies on snow or ice; they also like to slide down river banks into the water.
	en.wikipedia.org /wiki/Northern_River_Otter (1179 words)

	Otter - Wikipedia, the free encyclopedia
		To survive in the cold waters where many otters live, the specialised fur is not enough: otters have very high metabolic rates and burn up energy at a profligate pace: Eurasian otters, for example, must eat 15% of their body weight a day; sea otters, 20 to 25%, depending on the temperature.
		The northern river otter (Lontra canadensis) was one of the major animals hunted and trapped for fur in North America after contact with Europeans.
		River otters eat a variety of fish and shellfish, as well as small land mammals and birds.
	en.wikipedia.org /wiki/Otter (818 words)

	AllRefer - Wildlife & Animals: River Otter \| Lutra canadensis > Species: (Site not responding. Last check: 2007-11-06)
		The river otter is state-listed as endangered in Nebraska [23], Illinois [21], and Colorado and threatened in South Dakota [22].
		River otter pups are introduced to water by age 48 days and may venture out of the den on their own by the age of 59 to 70 days.
		River otters are generally most abundant along food-rich coastal areas, such as the lower portions of streams and rivers and in estuaries, and in areas having extensive nonpolluted waterways [4].
	reference.allrefer.com /wildlife-plants-animals/animals/mammal/luca/all.html (2675 words)

	Northern River Otter
		The river otter is large for a mustelid and beautifully adapted for its aquatic habits.
		Otters were once found throughout most of North America, but the fine, high quality of their fur made them a favorite quarry of trappers, and habitat loss from damming rivers, siltation, riparian development of all kinds led to the decimation of this species over much of the United States.
		River otters seem always on the move and they are especially known for their playfulness.
	imnh.isu.edu /digitalatlas/bio/mammal/Carn/muste/nrott/otter.htm (715 words)

	Chesapeake Bay Program - River Otter
		The northern river otter is a playful, quick and graceful animal that is spends most of its life in the rivers, marshy ponds and wooded riparian areas of the Chesapeake and its rivers.
		River otters vocalize, by whistling, which is to communicate over distances, and shrill chatter call, during mating season.
		River otters are active and playful by day if not disturbed by humans and sometimes may be seen playing in small family groups.
	www.chesapeakebay.net /otter.htm (758 words)

	River Otter: Nature Snapshots from Minnesota DNR: Minnesota DNR (Site not responding. Last check: 2007-11-06)
		The river otter is a long, sleek, dark brown to fl aquatic carnivore that lives in most northern Minnesota lakes, ponds, and streams.
		As is common with members of the family Mustelidae, otters have a long period of "delayed implantation." Shortly after adult females have a litter of two to four young, they are bred and become "pregnant" for nearly a full year.
		Because the river otter has valuable fur and is relatively easy to trap, it is classed as a registered furbearer in Minnesota.
	www.dnr.state.mn.us /snapshots/mammals/riverotter.html (431 words)

	EEK! - Critter Corner - The River Otter
		Otters will hang out at a few of their favorite spots in this large area, depending on where the eating is good.
		Otters use dens to raise their 2-4 pups which are born in April or May following one year of gestation (pregnancy).
		We know that otter numbers will never be as high as beavers or muskrats because of their need for a large territory and a large amount of food.
	www.dnr.state.wi.us /org/caer/ce/eek/critter/mammal/riverotter.htm (758 words)

	BLM-Bureau of Land Management-Utah-News Release (Site not responding. Last check: 2007-11-06)
		The Escalante River is a tributary to the Colorado River.
		The twentieth century saw river otter populations greatly decline or disappear from their historic ranges in the river system due to such factors as dams, water diversions, decreases in water quality, declines in riparian conditions, and trapping.
		The otters are obtained from an established population in the Green River of northeastern Utah.
	www.ut.blm.gov /NewsReleases/feb14.html (492 words)

	RIVER OTTER
		The Northern river otter is found in Alaska, most of Canada, and all the way south to California.
		The Northern river otter’s habitat is primarily along pond, rivers, and lakes in areas that are wooded.
		The Northern river otter’s body is three to four feet in length, and their tail is their tail is one to one and a half feet long.
	www.onrc.washington.edu /trail/riverotter.htm (315 words)

	Lontra canadensis (Schreber); Northern River Otter
		The river otter ranges from Alaska and Canada throughout the United States except in the arid regions from central Texas west to southern Arizona, southern Nevada, and southern California.
		As late as 1896, Rhoads considered the river otter to be "a rare but constant inhabitant of all the larger streams in the State [Tennessee]." By the 1930s however, when the park was created, uncontrolled trapping had nearly eliminated the otter.
		Northern river otters are found along the borders of streams, rivers, and lakes.
	www.discoverlife.org /nh/tx/Vertebrata/Mammalia/Mustelidae/Lontra/canadensis (873 words)

	Proceedings of the Oklahoma Academy of Science
		Northern river otter (Lutra canadensis) distribution and relative abundance was estimated from sign surveys conducted during January and February, 1993 and 1994.
		River otter populations have been increasing throughout Arkansas (3), suggesting that recent otter observations in southeastern Oklahoma may be the result of immigration of river otters from Arkansas.
		Otter detection rates in the SBRD were 50% in 1993 and 30% in 1994 (Table 1).
	digital.library.okstate.edu /OAS/oas_htm_files/v77/p93_98.html (1966 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		Otters chuckle softly to siblings or mates, apparently as a sign of affection, and also chirp, grunt, snort, and growl.
		The Northern River Otter’s fur is durable, thick, and beautiful, and excessive trapping in the past has greatly diminished the animals in number.
		Some river otters, however, may be developing a tolerance to certain toxic substances, and their populations are slowly increasing.
	www.enature.com /partners/nwf/showSpeciesLG_nwf.asp?curFamilyID=&showType=4&rgnID=1599&curGroupID=5&curPageNum=66&recnum=MA0031 (740 words)

	River Otter in New York (Site not responding. Last check: 2007-11-06)
		Otter are the only members of the weasel family having webbed feet and a heavily muscled tail.
		Otter breed in February but the young are born the following year between April and May. This seemingly long pregnancy is due to a delayed implantation of the fertilized egg.
		Otter are long-lived and are not thought to breed effectively until they are several years old; this is unusual among small to medium sized mammals.
	www.dec.state.ny.us /website/dfwmr/wildlife/wildgame/ottrinny.htm (576 words)

	Pueblo Zoo Indian Fantail Pigeon
		The Northern river otter's range is Alaska and across Canada and the United States, avoiding the arid regions of Texas, Arizona, Nevada and California.
		River otters get their boundless energy from their very high metabolism, which also requires them to eat a great deal during the day.
		River otters are VERY playful and love to slide downhill in snow and mud, considered a favorite amusement.
	www.pueblozoo.org /archives/jul03/feature.htm (739 words)

	Northern River Otter
		The river otter can be found in most of Canada with populations extending south into northern California and Utah.
		The otter mother is known for being a fierce protector to its young.
		The otter lives in a nest underground made of sticks, grass, reeds, and leaves which is connected to a pond or stream by means of an underwater entrance.
	biology.wsc.ma.edu /biology/courses/hoag/mammal/98fall/spacc/lontra.html (846 words)

	River Otter -- Lutra canadensis
		The otter's fur is dense with a waterproof, oily undercoat and an outer coat of long, stiff guard hairs.
		Otters shed their fur twice a year with little difference between summer and winter pelage.
		The otter is 35 to 55 inches long with the tail representing nearly 1/3 of that total length.
	www.suite101.com /article.cfm/enabling_garden/36115 (437 words)

	Northern River Otter (Site not responding. Last check: 2007-11-06)
		Otters are regular but not common patients at the Pelican Man's Bird Sanctuary.
		This particular Otter, however, had food poisoning and looked to be feeling very sorry for itself.
		But after a few days in the hospital, it became very lively once again and we were able to release it back to the wild, where it was immediately accepted by its parents and siblings.
	www.pelicanman.org /html/Northern_River_Otter.htm (87 words)

	BISON Species Account 050555 (Site not responding. Last check: 2007-11-06)
		NEW MEXICO 1992: Moderate priority was assigned to the river otter with regard to the importance of assessing a threshold for its sustainable harvest as a New Mexico furbearer (Thompson, et al., 1992) 42.
		UTAH River Otter, Lutra candadensis sonora (and L.c.
		Northern river otters (L. canadensis) associate with permanent water sources, and are therefore known to use riparian habitats in New Mexico (Frey and Yates, 1996) 59.
	fwie.fw.vt.edu /states/nmex_main/species/050555.htm (4791 words)

	Washington - Wikipedia, the free encyclopedia
		During the Great Depression a series of hydroelectric dams were constructed along the Columbia river as part of a project to increase the production of electricity.
		Washington is bounded by the Pacific Ocean to the west, Oregon to the south (the Columbia River forming most of this border), Idaho to the east and British Columbia, Canada to the north.
		Washington is also notable for being home to four of the five longest floating bridges in the world: the Evergreen Point Floating Bridge, Lacey V. Murrow Memorial Bridge and Homer M. Hadley Bridge over Lake Washington, and the Hood Canal Bridge connecting the Olympic and Kitsap Peninsulas.
	en.wikipedia.org /wiki/Washington (2303 words)

	Boreal Forests of the World Mammal Species - Eurasian River Otter (Site not responding. Last check: 2007-11-06)
		Otters are solitary animals doing nocturnal migrations, which may lead lots of kilometres through areas of solid ground.
		River otters hunt fish but also all other kinds of small animals living in or near the water.
		In former times river otters had been hunted intensively for their fur.
	www.borealforest.org /world/mammals/eurasian_river_otter.htm (240 words)

	PiLand Ranch GOAAAT GIRRRLS! (Site not responding. Last check: 2007-11-06)
		Although otters generally cruise along slowly in the water by paddling with all four feet, they can sprint after prey with the ease of a seal whenever hunger strikes. When an otter swims quickly, it propels itself mainly with vertical undulations of its body, hind legs and tail.
		Otters can hold their breath for as long as five minutes, and, if so inclined, they could swim the breadth of a small lake without surfacing.
		In the past, the Northern River Otter’s thick, beautiful, durable fur led to excessive trapping that greatly diminished its continental population. Trapping has since been reduced, and the otter seems to be slowly recolonizing parts of North America from which it has been absent for decades.
	www.pilandranch.com /newsletter34.htm (910 words)

	River Otter - Gardening
		Otters are found in large bodies of water containing abundant aquatic life and prey.
		Otters quickly disappear from waterways suffering from pollution, perhaps from pesticide runoffs or increased acidity.
		Otters are nocturnal (active at night) or crepuscular (active at dawn or twilight).
	www.bellaonline.org /articles/art3587.asp (1796 words)

	River Otter Fact Sheet (Site not responding. Last check: 2007-11-06)
		River otter have long streamlined bodies and short, powerful legs with webbed feet.
		Although the record size for a northern river otter is 33 pounds and 54 inches in length, the average size is 18 pounds and 40 inches long.
		Otter live near water in lakes, rivers and marshes.
	www.dnr.state.md.us /wildlife/riverotter.html (196 words)

	North American River Otter (Site not responding. Last check: 2007-11-06)
		North American river otters are rich brown on top, with a silvery sheen on the bottom.
		River otters have a long neck, short legs, a flat head, strong claws, whiskers, and no hair on their nose.
		A female otter is pregnant for 10 to 12 months, with a litter of one to six.
	www.letus.org /bmatters/animals/otter.html (647 words)

	Oakland Zoo: North American River Otter (Site not responding. Last check: 2007-11-06)
		Because otters prey most easily on fish that are slow and lethargic, much of the diet consists of "rough" fish like carp, suckers, catfish, and sculpins.
		The river otter is native to northern and central California, being found in the delta region of the Sacramento and San Joaquin Rivers, where it sometimes dens in thick tules.
		In California the river otter is fully protected under law and may not be taken at any time.
	www.oaklandzoo.org /atoz/azotter.html (516 words)

	North American River Otter Lontra canadensis (Site not responding. Last check: 2007-11-06)
		We went to see River Otters at the 'Narrows', which is a short, narrow straight that thaws early, if it ever freezes, on the seasonally frozen lake.
		Nearby, the otter briefly surfaced to glance at the eagle.
		Pilfering is likely very common on the otter side of the lake, but sly trickery seems to be customary as well, for the otter soon made a game of the raven's audacity.
	triffophoto3.tripod.com /tpo/id37.html (1879 words)

	River Otter in Alabama
		Otter pelts range from a rich dark brown (almost fl) to a pale chestnut on the back and sides and light brown mixed with varying amounts of gray on the belly.
		Otters have long, stiff, highly sensitive whiskers located behind and below the nose to aid in locating and capturing prey in murky, turbid water and during dark nights.
		Young otter pups attain sexual maturity at two years of age and at that time are driven away to establish their own territory.
	www.dcnr.state.al.us /watchable-wildlife/what/Mammals/Carnivores/ro.cfm (671 words)

	Oklahoma Museum of Natural History
		Habits: Northern River Otters are seen at night and in the daytime, but are very shy and rare animals.
		River Otters have two to three young per litter, and they stay with the mother for about a year.
		Northern River Otters probably were extinct in Oklahoma by the 1950s; since this time otters have been reintroduced and are recolonizing parts of the state.
	www.snomnh.ou.edu /collections-research/cr-sub/mammalogy/mammalkey/Lontra_canadensis.html (145 words)

	Northwestern Ontario Mammal Species - Northern River Otter (Site not responding. Last check: 2007-11-06)
		The river otter is a powerful swimmer more at home in the water than on land where it is subject to predation by coyotes, wolves, lynx and bobcats.
		The river otter usually produces a litter of 2 to 3 offspring once a year.
		An otter family is a sight to behold when one is lucky enough to see them at play in their natural habitat.
	www.borealforest.org /zoo/otter.htm (132 words)

	Verde Wild and Scenic River, Arizona (Site not responding. Last check: 2007-11-06)
		The highest elevation within the Scenic River Area is 3,484 feet (south-west of the confluence of Sycamore Canyon Creek with the Verde River); its lowest elevation is 2,590 feet (river-level at the wilderness boundary).
		The highest elevation within the Wild River Area is 3,280 feet (a point west of Ike's Backbone); its lowest elevation is 2,180 feet (river-level at the confluence of Red Creek with the Verde River).
		Native southwestern and introduced Louisiana subspecies of river otter are obligate riparian mammals that occur with the Scenic and Wild River Areas.
	www.nps.gov /rivers/wsr-verde.html (3607 words)

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