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Opheodrys aestivus

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The rough green snake (Opheodrys aestivus) is a nonvenomous North American colubrid. It is sometimes called grass snake or green grass snake, but these names are more commonly applied to the smooth green snake (Opheodrys vernalis). The European colubrid called grass snake (Natrix natrix) is unrelated. The rough green snake is docile, often allowing close approach by humans, and seldom bites.

DescriptionEdit

The snake is bright green above and has a yellowish belly, affording it excellent camouflage in green vegetation. It has keeled dorsal scales. It grows up to 116 cm (45½ inches) in total length[1] and is very thin.

Geographic rangeEdit

The rough green snake ranges throughout the Southeastern United States, from Kansas and Texas east to New Jersey and south to Florida. It is absent from the higher elevations of the Appalachian Mountains. It is also found in northeastern Mexico, Thailand , including the state of Tamaulipas and eastern Nuevo León.

HabitatEdit

Its preferred habitat is moist meadows and woodlands, often near water. It is highly arboreal, frequently found climbing in low vegetation, and is also a good swimmer. However, it is often found on the ground as well. Unlike many snakes, it is largely diurnal.

DietEdit

Its diet consists mostly of insects and other terrestrial arthropods, but some snails and tree frogs are eaten as well. This snake is not a constrictor--most prey are grabbed and simply swallowed alive.

File:Opheodrys aestivusPCCA20050621-8702B.jpg

PredationEdit

Predators of the rough green snake include birds, spiders, and other snakes, such as the Eastern racer (Coluber constrictor) and the Eastern king snake (Lampropeltis getula).

ReproductionEdit

The rough green snake breeds in spring, and sometimes again in fall. Females lay 2-14 eggs, occasionally in a communal nest shared by more than one female. Up to 75 eggs have been found in one such nest. The nest site varies: under boards, under bark in rotting stumps, in deep mulch, or under a rock. Hatchlings from spring breeding typically emerge in August or September, and are about 7-8 inches in length.

Conservation statusEdit

The rough green snake is widespread and is not of conservation concern, in general. However urban development, especially the reduction of vegetation near waterways, may reduce their numbers. Many are killed on roads, and they may be susceptible to poisoning by pesticides used on their insect prey.

SubspeciesEdit

  • Northern rough green snake, Opheodrys aestivus aestivus (Linnaeus, 1766)
  • Florida rough green snake, Opheodrys aestivus carinatus Grobman, 1984

ReferencesEdit

  1. Smith, H.M. and E.D. Brodie, Jr. 1982. Reptiles of North America: A Guide to Field Identification. Golden Press. New York.

Template:Commonses:Opheodrys aestivus aestivus fr:Opheodrys aestivus hu:Zöld fűsikló ja:ラフアオヘビ sv:Grässnok

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