common snapping turtle

Also known as Chelydra serpentina

large freshwater turtle of the family Chelydridae

Species

Least Concern

Common Snapping Turtle

Species

PhylumChordata
OrderTestudines
FamilyChelydridae

Habitatfreshwater

Observations114,940

本條目介紹的是擬鱷龜。關於另一种相似名称的龟，請見“大鱷龜”。二名法 Chelydra serpentina(Linnaeus, 1758) 擬鱷龜棲息地分佈擬鱷龜（學名：Chelydra serpentina），是世界最大的淡水龜之一。牠們是大鱷龜的親屬，體型大且攻擊性極強，除了短吻鱷外幾乎没有天敵。分布地由加拿大南部至厄瓜多爾，有四個亞種。目录 1 形態 2 生態 3 飼養 4 保護 5 参考 6 外部連結形態擬鱷龜的外殼是黑、棕、黃、橘、橄欖色，40至50厘米長，腹甲小而呈十字型。頭部大而喙部锐利。最重可達34-39公斤。生態擬鱷龜是幾乎全水棲性除產卵和曬太陽外不上岸。夜行性，偏向肉食性的雜食性，捕捉魚類，鳥類，兩棲類，爬行類，小型哺乳類動物，軟體動物，甲殼類，昆蟲。也食腐肉和一些植物。獵食方式是埋伏突襲，攻擊速度很快。牠們位於食物鏈上層，除短吻鱷外幾乎沒有天敵。雄性4-5歲成熟,雌性6-7歲。產25-80個卵，9-18星期後出生。依亞種不同而有不同的體色及肉芽，壽命可達100歲。擬鱷龜咬合力較鱷龜小的多，但相對的攻擊性比鱷龜強許多，會主動追著獵物跑，對侵略者也有很強的攻擊性。飼養擬鱷龜不是理想的寵物。牠的脖子很長很靈活，可以咬到殻後部，攻擊的速度很快，咬合的力量可以輕鬆切斷人的手指。當受到威脅時，牠將發出嘶嘶的聲音。但是在水中遇到干擾，通常會悄悄地遠離。保護 2006年擬鱷龜被宣布成紐約州爬行動物。参考 ^ Chelydra serpentina, IUCN 外部連結维基物种中的分类信息：擬鱷龜维基共享资源中相关的多媒体资源：擬鱷龜 The Snapping Turtle Page - www.chelydra.org Snapping Turtle - Chelydra serpentina Species account from the Iowa Reptile and Amphibian Field Guide Common Snapping Turtle, Natural Resources Canada Video: How to Help a Snapping Turtle Cross A Road from the Toronto Zoo 取自“https://zh.wikipedia.org/w/index.php?title=擬鱷龜&oldid=52429303” 分类： IUCN无危物种寵物龜鳄龟科美國爬行動物加拿大動物卡尔·林奈命名的生物分类隐藏分类： TaxoboxLatinName 本地相关图片与维基数据不同

via IUCN

Wikidata facts

Article

The common snapping turtle (Chelydra serpentina) is a species of large, freshwater turtles in the family Chelydridae. Its natural range extends from southeastern Canada, southwest to the edge of the Rocky Mountains, as far east as Nova Scotia, and Florida. The present-day C. serpentina population in the Middle Rio Grande suggests that the common snapping turtle has been present in this drainage since at least the 17th century and is likely native. The three species of Chelydra and the larger alligator snapping turtles (genus Macrochelys) are the only extant chelydrids, a family now restricted to the Americas. The common snapping turtle, as its name implies, is the most widespread.

The common snapping turtle is noted for its combative disposition when out of the water, with its powerful, beak-like jaws, and highly mobile head and neck (hence the specific epithet serpentina, meaning "snake-like"). In water, it is likely to flee and hide underwater in sediment. The common snapping turtle has a life-history strategy characterized by high and variable mortality of embryos and hatchlings, delayed sexual maturity, extended adult longevity, and iteroparity (repeated reproductive events) with low reproductive success per reproductive event.