[33] Specific species of reptiles and amphibians prey include: boreal chorus frogs (Pseudacris maculata); Canadian toads (Bufo hemiophrys); wood frogs (Rana sylvatica);[34] bullfrogs (Rana catesbeiana); green frogs (Rana clamitans);[36] northwestern salamanders (Ambystoma gracile); Pacific giant salamander (Dicamptodon ensatus); rough-skinned newt (Taricha granulosa);[33] and garter snakes (Thamnophis). [22] Males are, on average, 5% larger than females. [48] However, large populations never occurred in areas of Southern California such as the chaparral and oak woodlands and Mojave Desert seasonal waterway regions, or in the xeric shrubland regions in New Mexico, Texas, Nevada, and Colorado. In 1980, an examination conducted on U.S. river otter populations determined they were extirpated in 11 states, and had experienced drastic lapses in 9 others. A technique borrowed from the science of human archaeology may answer this conservation question. In addition, North American river otters can contract jaundice, hepatitis, feline panleucopenia, and pneumonia. Perhaps the region was once a genetic way station, allowing interbreeding up and down the Pacific Coast, says Dr. Larson, who did not participate in the current work. They host numerous endoparasites, such as nematodes, cestodes, trematodes, the sporozoan Isopora, and acanthocephalans. In Florida, inhabitation of North American river otters is lowest in freshwater marshes, intermediate in salt marshes, and highest in swamp forests. Foot falls during walking and running follow the sequence of left limb, right limb, right limb, left limb. [15] The maximum weight and length of both sexes are attained at three to four years of age. Water quality and development inhibit recovery of populations in some areas. Otters and most exotic pets may not like to be restrained, especially with strangers. Several North American river otters may even cooperate while fishing. [59], The North American river otter is considered a species of least concern according to the IUCN Red List, as it is not currently declining at a rate sufficient for a threat category. From 1969 to 1971, the United States was testing nuclear weapons beneath one of Alaska’s Aleutian Islands, worryingly close to some of the world’s few surviving sea otters. KanOkla Fur Company, established in 1974 as a fur trader, is located on the Kansas/Oklahoma border in Hunnewell, Kansas. [15], CS1 maint: multiple names: authors list (, "Expert says otter attacks are rare after St. Pete dog killed", "Dog attacked by otters in Lakewood, homeowners say", "7 Surprising Facts About the Giant River Otter", "Multigene phylogeny of the Mustelidae: Resolving relationships, tempo and biogeographic history of a mammalian adaptive radiation", 10.1644/1545-1410(2002)712<0001:LM>2.0.CO;2, "North American River Otter – National Wildlife Federation", "Basic Facts About North American River Otters", "Distribution and abundance of river otter in Voyageurs National Park, Minnesota", "Food habits of the river otter in Suisun Marsh, Central California", "Feeding relationships of river otters in northeastern Pennsylvania", Food habits of the North American river otter (, "Social Networks and the Formation and Maintenance of River Otter Groups", "Art Lander's Outdoors: Once endangered river otters now likely to be found in Kentucky for generations", Colorado Otters May No Longer Need Protection, "Final report of the North American river otter research project on the Upper Colorado River Basin in and adjacent to Rocky Mountain National Park, Colorado", https://animaldiversity.org/accounts/Lontra_canadensis/, COSEWIC assessment and status report on the Grizzly Bear, https://en.wikipedia.org/w/index.php?title=North_American_river_otter&oldid=1005199869, Short description is different from Wikidata, Articles with unsourced statements from May 2009, Srpskohrvatski / српскохрватски, Creative Commons Attribution-ShareAlike License, This page was last edited on 6 February 2021, at 13:36. The subterranean explosions prompted conservation managers to carry out a daring plan. Likewise, the potential predatory impact of otters may be considerable whenever fish are physically confined (most commonly in smaller ponds offering sparse cover or other escape options). [15] Tail lengths range from 30 to 50 centimetres (12 to 20 in). During the dry season, they will recede from the marshland and move to permanent ponds, where water is available and food is in greater supply. Possession of Carcasses or Hides. [25][33], Amphibians and reptiles are more obtainable by the North American river otter during the spring and summer as a result of breeding activity, appropriate temperatures, and water supply for the prey. [30] However, river otters will prey on trout, pike, walleye (Sander vitreus vitreus), salmon (Oncorhynchus spp. Peoria Zoo – This cam includes views of meerkats. First, they netted some Alaskan sea otters. This is a list of the schools in Division II of the National Collegiate Athletic Association (NCAA) in the United States and Canada that have women's soccer as a varsity sport. All bobcats and river otters must have a permanent tag affixed for the current year, prior to being held for later sale. This dilemma prevents, and consequently inhibits, recolonization or growth of North American river otter populations. When females leave, they tend to move much further away (60–90 km or 37–56 mi) than males (up to 30 km or 19 mi), which tend to move shorter distances. MUSKOGEE, Okla. — Police say one person is in custody after six people, including five young children, were shot to death at a home in Oklahoma. [54] Trappers in Alberta, Canada commonly assert North American river otters are major predators of North American beavers. [49] Fish species frequently found in the diets of the North American river otters include: Catostomidae, which consists of suckers (Catostomus spp.) North American river otter pelts are used as the standard for rating the quality of other pelts. The smell and hearing abilities of the North American river otter are acute. ); darters (Etheostoma spp. [52], Waterfowl, rails, and some colonial nesting birds are preyed upon by North American river otters in various areas. The mean tracheal length of the North American river otter is 15.3 cm (6.0 in), or 23.2% of the body length. Fill your vacation days with fishing, … [15], Communication among North American river otters is accomplished mainly by olfactory and auditory signals. This was part rescue mission, part homecoming. North American river otters also inhabit the forested regions of the Pacific coast in North America. In freshwater systems, groups occur most often in autumn and during early winter. [4] Instances of North American river otters eating small mammals, such as mice and squirrels, and occasionally birds have been reported as well. Home ranges of males are larger than those of females, and both sexes exhibit intra- and intersexual overlap of their domains. Ms. Wellman says she plans to share her data with the Elakha Alliance, a nonprofit organization supported by the Confederated Tribes of Siletz Indians and the Coquille Indian Tribe. In Mexico, the North American river otters lived in the Rio Grande and Colorado River Deltas. [1] The number of corpora lutea increases directly with age. The den typically has many tunnel openings, one of which generally allows the otter to enter and exit the body of water. [41] [58] Appendix II lists species that are not necessarily threatened with extinction currently, but may become so unless trade is closely controlled. Otter play mostly consists of wrestling with conspecifics. [2], North American river otters, like most predators, prey upon the most readily accessible species. In Idaho, juvenile, yearling, and adult males averaged 8, 11, and 17% heavier, respectively, than females of the same age. The species is also present throughout Alaska, including the Aleutian Islands, and the north slope of the Brooks Range. Recently, long-term genetic consequences of reintroduction projects on remnant North American river otter populations has been discussed. These analyses suggest they diverged in the Miocene epoch 23.03 to 5.33 million years ago (Mya), which is "much earlier" than indicated in the fossil record. Its body length ranges from 66 to 107 centimetres (26 to 42 in). I have a Kansas, Oklahoma, and Texas Fur Buyers License and purchase many type of wild fur pelts, skins, and hides in various forms, such as raw, skinned, and stretched and dried. North American river otters also currently inhabit coastal regions throughout the United States and Canada. Home ranges of North American river otters increase in size on oiled areas compared to unoiled areas, and individual otters also modify their habitat use. This past February, the U.S. [37] Cases where they've been ambushed and consumed by grizzly bears (Ursus arctos horribilis) and polar bears (Ursus maritimus) have also been reportedly witnessed near the Arctic region. In the mid 19th century, Russian fur exports ceased because the source animals had been all but hunted to extinction. Oklahoma City Zoo – This cam includes views of red pandas. The North American river otter scent-marks with feces, urine, and possibly anal sac secretions. [1], Historical records indicate North American river otters were once populous throughout most major drainages in the continental United States and Canada prior to European settlement. [30][38] North American river otters do not generally handle prey of a large size relative to themselves but there are occasions where they've been observed ambushing and killing adult common snapping turtles while the large turtles (which are roughly equal in average body weight to a North American river otter) are hibernating. [14] The earliest known fossil of Lontra canadensis, found in the US Midwest, is from the Irvingtonian stage (1,800,000 to 300,000 years ago). Their goal was to extract genetic sequences from the specimens. But within a few years the Oregon otters vanished. The North American river otters avoid water bodies with gradually sloping shorelines of sand or gravel. Before fur traders hunted them to the brink of extinction, sea otters used to bob and roll up and down North America’s Pacific Coast, gobbling down sea urchins and helping to maintain waving towers of kelp. The kits open their eyes after 30–38 days. “Which would be awesome.”, Archaeologists Could Help Bring Otters Back From the Dead. When the mothers have established their domains, they give birth to several kits. [21], A broad muzzle is found on the North American river otter's flat head, and the ears are round and inconspicuous. De'Vion Harmon scored 18 points to help No. To complement that finding, the team also reached out to the Smithsonian in Washington, D.C. for a few rare sea otter specimens from the waning days of the fur trade when otters became increasingly scarce. The rhinarium is bare, with an obtuse, triangular projection. [32] The North American river otters have also been known to catch and consume moulting American wigeon (Mareca americana) and green-winged teal (Anas crecca). [34] Fish remnants were found present in 91.9% of the scat samples. Log jams are heavily used when present. [19] Litter size can reach five, but usually ranges from one to three. It can tolerate a great range of temperature and elevations. [15], The mothers raise their young without aid from adult males. [15], The North American river otter is physically well-equipped for aquatic life. Copulation is vigorous, and is interrupted by periods of rest. Male North American river otters do not seem to be territorial, and newly dispersing males may join established male groups. Declines in the richness and diversity of prey species may explain these changes. The claws are well-formed and facial vibrissae (about 5 mm (0.20 in) long) are present. ); and perches (Perca spp.). Wildlife is abundant in Voyageurs…deer, moose, otters, bald eagles, black bear and white pelicans are few examples. [18] An average adult male weighs about 11.3 kilograms (25 lb) against the female's average of 8.3 kilograms (18 lb). The ears are short, the neck is the same diameter as the head, the legs are short and powerful, the toes are fully webbed, and the tail (one-third of body length) is tapered. The otters migrated to North America and southwards again across the Panamanian Land Bridge, which formed 3 Mya. [15], On land, the North American river otter can walk, run, bound, or slide. Because the North American river otters delay implantation for at least eight months, the interval between copulation and parturition can reach 10–12 months. [15], The fur of the species is short (guard hairs average 23.8 mm (0.94 in)), with a density of about 57,800 hairs/cm2 (373,000 hairs/in2) in the midback section. So bring your camera and plenty of film. 24 Oklahoma defeat No. The North American river otter (Lontra canadensis), also known as the northern river otter or common otter, is a semiaquatic mammal endemic to the North American continent found in and along its waterways and coasts. Raul Touzon/National Geographic Image Collection, via Getty Images. The species is widely distributed throughout its range. They scraped calculus off the teeth, then carefully extracted the small percentage of otter DNA in that calculus. [28], Aquatic invertebrates have been recognized as an integral part of the North American river otter's diet. The research compiled the most comprehensive genetic data set yet of Oregon’s original sea otters. People who like to … Daily movements of yearling males and females in Idaho averaged 4.7 and 2.4 km (2.9 and 1.5 mi) in spring, 5.1 and 4.0 km (3.2 and 2.5 mi) in summer, and 5.0 and 3.3 km (3.1 and 2.1 mi) in autumn, respectively. The throat, chin, and lips are grayer than the rest of the body. Trapping, loss or degradation of aquatic habitats through filling of wetlands, and development of coal, oil, gas, tanning, timber, and other industries, resulted in extirpations, or declines, in North American river otter populations in many areas. Pittsburgh Zoo – This cam has views of their cheetahs. [1] They are now absent or rare in Arizona, Kansas, Nebraska, New Mexico, North Dakota, Ohio, Oklahoma, South Dakota, Tennessee, and West Virginia. ... Mary Power focuses her studies on fish in the rivers and streams of Oklahoma. Dr. Larson, who is helping write that assessment, says she plans to incorporate the new analysis of Oregon’s past otter diversity. [19] About one-third of the animal's total length consists of a long, tapered tail. However, improvements in water quality (through enactment of clean water regulations) and furbearer management techniques have permitted river otters to regain portions of their range in many areas. [10], The North American river otter is a stocky animal of 5 to 14 kilograms (11 to 31 lb), with short legs, a muscular neck (no smaller than the head) and an elongated body that is broadest at the hips. [22], Like other otters, the North American river otter lives in a holt, or den, constructed in the burrows of other animals, or in natural hollows, such as under a log or in river banks. [9] The species epithet canadensis means "of Canada". A number of reintroduction projects have been initiated to help halt the reduction in the overall population. [25] An adult North American river otter has a total of 36 teeth. Click on any state for a listing of exotic animal breeders in the state. [15], North American river otters are renowned for their sense of play. Exotic Animal Breeders. Consequently, many wildlife management agencies developed strategies to restore or enhance otter populations, including the use of reintroduction projects. [8], The North American river otter was first described by German naturalist Johann Christian Daniel von Schreber in 1777. Sure, Oklahoma would be without leading scorer Austin Reaves and starting guard Alondes Williams because of COVID-19 protocols. A short, broad rostrum for exhaling and a long, broad cranium define the relatively flat skull. Prior to the arrival of the next litter, the North American river otter yearlings venture out in search of their own home ranges.[44]. If you would like to be added to the exotic animals breeder directory, complete the exotic animals breeder form. Since their reintroduction to Kentucky in the early 90s, they have recovered to the point that a trapping season was started in 2006, and the species is now found in all major waterways. FEB 11, 2021 - MIAMI (AP) — Zoo Miami is celebrating the birth of three North American river otter pups.The Feb. 5 birth was the first for their mother, Zinnia, the zoo's communication director, Ron Magill, said in a news release. and redhorses (Moxostoma spp. North American river otters are active year-round, and are most active at night and during crepuscular hours. [22] Den sites include burrows dug by woodchucks (Marmota monax), red foxes (Vulpes vulpes), nutria (Myocastor coypus), or beaver and muskrat lodges. [20] It differs from the European otter by its longer neck, narrower visage, the smaller space between the ears and its shorter tail. [34][49] Invertebrates discovered within scats or digestive tracts could most likely be a secondary food item, first being consumed by the fish that are subsequently preyed upon by the North American river otters. The North American river otters may compete with the American mink (Mustela vison) for resources. On the 12th January 2021, Port Lympne welcomed a newborn male Javan Gibbon! North American river otters rely upon play to learn survival skills such as fighting and hunting. For example, a study conducted in a central California marshland indicated crayfish formed nearly 100% of the river otter's diet at certain times of the year. Reintroduction projects have expanded their distribution in recent years, especially in the Midwestern United States. [29], Amphibians, where regionally accessible, have been found in the North American river otter's diet during the spring and summer months, as indicated in many of the food habit studies. When a copious supply of food dwindles or other prey becomes available, North American otters either transfer to a new location or convert their dietary choices to the most adequate prey. [1], North American river otters often reside in beaver ponds. [15] They have long bodies, and long whiskers that are used to detect prey in dark waters. [15] The North American river otter's nostrils and ears close during submersion, keeping water from entering them. January 22, 2021 | Oklahoma Legislator Proposes Big Foot Hunting Season; January 20, 2021 | Naked Fugitive Found in Croc-Infested Swamp; January 13, 2021 | Assorted Stupidity #140 (Sedition Edition) January 8, 2021 | Dear Idiots: Please Keep Posting Pictures of You Committing Crimes; January 4, 2021 | United States v. Five Hundred and Twelve Otters However, urbanization and pollution instigated reductions in range area. For instance, an Alberta, Canada study involved the collection and analysis of 1,191 samples of North American river otter scats collected during each season. One hypothesis holds that the otters simply swam off, heading back north. [15], North American river otters consume an extensive assortment of fish species ranging in size from 2 to 50 centimeters (0.79 to 19.69 in) that impart sufficient caloric intake for a minute amount of energy expenditure. We are your NCAA Shop that sells only authentic Collegiate Apparel, including College Football Gear, College Basketball Apparel, NCAA Merchandise, Collegiate Clothing and Gifts. [15], The North American river otter is sexually dimorphic. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 and 30.9 lb). [28] This availability is influenced by the following factors: detectability and mobility of the prey, habitat availability for the various prey species, environmental factors, such as water depth and temperature, and seasonal changes in prey supply and distribution in correspondence with otter foraging habitat. Fur of senescent river otters may become white-tipped, and rare albinos may occur. A family of wild smooth-coated otters jumps into the Singapore River next to Jiak Kim Bridge on Jan 5, 2021. They have been virtually eliminated through many parts of their range, especially around heavily populated areas in the midwestern and eastern United States. The tail, which is stout and larger in surface area than the limbs, is used for stability while swimming and for short bursts of rapid propulsion. “We have a lot more genetic diversity in these two adjacent sites than we do in modern sea otters,” said Courtney Hofman, a molecular anthropologist who extracted ancient DNA from the teeth at the University of Oklahoma. Sea otters in waters near Sitka, Alaska. Both males and family groups travel drastically less during winter. College Apparel Shop: NCAA T-Shirts, Hats, Jerseys. North American river otters have transparent nictitating membranes to protect their eyes while swimming. [30][31] Mammals preyed upon by North American river otters are characteristically small or are a type species found in riparian zones. They become much more nocturnal in the spring, summer, and fall seasons, and more diurnal during winter. Musk from the scent glands may also be secreted when otters are frightened or angry. During the breeding, the male grabs the female by the neck with his teeth. In Washington, the transplants took. Sliding occurs mostly on even surfaces of snow or ice, but can also occur on grassy slopes and muddy banks. Field Aviation designs, modifies and certifies aircraft for specialized roles across the globe. Aquatic predators include the American alligator (Alligator mississippiensis), American crocodile (Crocodylus acutus), and killer whale (Orcinus orca), none of which commonly coexist with the North American river otter and thus rarely pose a threat. As such, careful consideration of any threatened, endangered, or fish species of special interest is warranted prior to reintroduction of otters to a watershed. Giraffes. [36] Other prey consumed by North American river otters includes fruits,[37] reptiles, amphibians, birds (most especially moulting ducks which render the birds flightless and thus makes them easier to capture), aquatic insects, small mammals, and mollusks. Similarly, many perceived threats to North American river otters, such as pollution and habitat alterations, have not been rigorously evaluated. 9 Alabama 66-61 on Saturday in the SEC/Big 12 Challenge. [36] A study conducted on captive otters revealed they preferred larger fish, ranging from 15 to 17 centimeters (5.9 to 6.7 in), more than smaller fish, ranging from 8 to 10 centimeters (3.1 to 3.9 in), and they had difficulty catching fish species less than 10 centimeters (3.9 in) or larger than 17 centimeters (6.7 in). [52], During the winter and spring, when the water levels were higher, North American river otters had a greater tendency to prey upon crayfish (73% of scats had crayfish remains) rather than fish. [15], North American river otters can produce a snarling growl or hissing bark when bothered, and a shrill whistle when in pain. [34] Most aquatic invertebrates preyed upon by the otters are from the families Odonata (dragonfly nymphs), Plecoptera (stonefly nymphs), and Coleoptera (adult beetles). (Xinhua/Then Chih Wey) Asia Album: Wild animals in Singapore [49] Likewise, the common carp (Cyprinus carpio) is a preferred fish species for the North American river otter in other regions of Colorado. Since they aren’t nearly as good at digging for black beetle larvae in the bark mulch as their parents Kon and Malou, they try to steal the larvae that Kon and Malou have found directly from their front paws or from their mouths. [15], North American river otters typically breed from December to April. ); Cyprinidae, made up of carp (Cyprinus spp. [27] During winter, the North American river otters heavily use openings in the ice, and may excavate passages in beaver dams for accessing open water.

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