More than one-third of U.S. fish and wildlife species are at risk of extinction in the coming decades. In 1992, its congener Nerodia sipedon (northern or common water snake) and it were found in three sites in California by the US Fish and Wildlife Service (USFWS). They are fairly dark-colored snakes and may be brown, tan or grayish. Because of the amount of time they spend on land, the snake's includes a large quantity of amphibians. They are fairly dark-colored snakes and may be brown, tan or grayish. Range and Habitat: Northern Watersnakes are found throughout eastern and central North America. The plain-bellied water snake is a large, thick-bodied, solid-colored snake. Their back and sides have a series of square blotches that alternate and may merge to form bands. Reported predators include largemouth bass, kingsnakes, cotton mouths, and several species of egrets, and hawks. Juveniles have reddish brown saddles on a tan, brown, or gray background. It gets its common name because it has no marking on its underside. As adults, they have dark bands and are often mistaken for copperheads or cottonmouths, but these snakes are not venomous.

Some lighter colored snakes dispaly dark dorsal blotches. al. Their usual reaction to threats of being captured are: attempts to escape, biting and releasing a foul odor. Destruction or damage to wetlands is also a threat to the species's habitat. Habits: Northern watersnakes are live-bearers and breed April – June.

Northern water snakes mate after coming out of hibernation in late March to April. An individual northern water snake may look different in water than on land. Nerodia erythrogaster, commonly known as the plain-bellied water snake or plainbelly water snake, is a familiar species of mostly aquatic, nonvenomous, colubrid snake endemic to the United States. [4][3], This species bears live young (ovoviviparous) like other North American water snakes and garter snakes. However, when agitated they may flatten their bodies and bite.

Willson. Per known studies of this species in the wild, adult females can weigh between 158.9 and 408 g (5 ⁄2 and 14 ⁄2 oz) in average body mass while the smaller male can average from 80.8 to 151 g (2 ⁄8 to 5 ⁄8 oz). These snakes can be found throughout the eastern half of the United States, especially in the Northeast and Midwest. The common watersnake can grow up to 135 cm (4 ft 5 in) in total length (including tail). However, in 2010, Makowsky, et. Adults vary in size from 24–40 inches (76–122 cm) in total length. However, when agitated they may flatten their bodies and bite. These snakes are only social during fall and spring. "[6][7], The plain-bellied water snake is considered a conservation risk because of its tendency to travel over land on roads and highways.

Conservation Status: Northern watersnakes are abundant We're on the ground in seven regions across the country, collaborating with 52 state and territory affiliates to reverse the crisis and ensure wildlife thrive. Northern water snakes are some of the most common water snakes in the United States.

Fully grown water snakes are between 2 and 4.5 feet (0.6 and 1.4 meters) … One female was observed with a litter of fifty five baby snakes in North Carolina,[4] In 2014 a captive female produced two healthy offspring via parthenogenesis. As adults, they have dark bands and are often mistaken for copperheads or cottonmouths, but these snakes are not venomous.

Northern water snakes like a wide variety of aquatic habitats.

In 2009, more than 300 banded water snakes were caught in suburbs of Los Angeles by the Nerodia Working Group of USFWS. In 4 seconds, you will be redirected to nwfactionfund.org, the site of the National Wildlife Action Fund, a 501(c)(4) organization. This species is stable, but it does face habitat loss. [4], 10.2305/IUCN.UK.2007.RLTS.T63854A12722399.en, "Nerodia erythrogaster Plainbelly Water Snake", "Captive Snake Gives Second Virgin Birth in Two Months", "Phylogeographic analysis and environmental niche modeling of the plain-bellied watersnake (, https://en.wikipedia.org/w/index.php?title=Nerodia_erythrogaster&oldid=971548843, Taxonbars with automatically added original combinations, Creative Commons Attribution-ShareAlike License, This page was last edited on 6 August 2020, at 20:51. [4], These six subspecies of N. erythrogaster have been historically recognized, including the nominotypical subspecies. [4], The species gets most of its food from the water. Adult females tend to be larger than adult males. They have been observed coiled together, basking in the sun. Natrix sipedon erythrogaster — Allen, 1932; Natrix erythrogaster — Clay, 1938; Natrix e. erythrogaster — Conant, 1958; Nerodia e. erythrogaster — Conant & Collins, 1991; Nerodia erythrogaster, commonly known as the plain-bellied water snake or plainbelly water snake, is a familiar species of mostly aquatic, nonvenomous, colubrid snake endemic to the United States. In Shed - Captured by hand along a creek. The snake breeds from April until mid-June in the southeast U.S. determined that there was "little support for the recognized subspecies as either independent evolutionary lineages or geographically circumscribed units and conclude that although some genetic and niche differentiation has occurred, most populations assigned to N. erythrogaster appear to represent a single, widespread species. [2] This snake can be distinguished from other water snakes by its plain, unmarked underside varying in color from red to yellow. The female gives birth during the months from August to September. They inhabit a variety of aquatic habitats including lakes, ponds, marshes, rivers, and streams. Then in May 2016, the species was found in the Colorado River basin near Yuma, Arizona. As its scales dry, the colors appear more uniform and it can be harder to see the snake’s bands of color. Account Author: Andy Howington, University of Georgia – edited by J.D. The snakes are almost always found near a permanent water source. Their back and sides have a series of square blotches that alternate and may merge to form bands. They feed primarily on fish, crayfish, salamanders, and frogs. Search, discover, and learn about wildlife. Their scales are keeled and the anal plate is divided. Uniting all Americans to ensure wildlife thrive in a rapidly changing world, Inspire a lifelong connection with wildlife and wild places through our children's publications, products, and activities, National Wildlife Federation is a 501(c)(3) non-profit organization. Large broods have been observed, but a typical litter size is around eighteen.

They hibernate during the coldest months of the winter. Fully grown water snakes are between 2 and 4.5 feet (0.6 and 1.4 meters) long, with most measuring about 3.5 feet (one meter) long. Study Species Nerodia sipedon is an abundant semiaquatic natricine with a broad distribution in eastern and central North America (Ernst and Ernst 2003).



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