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沼泽箱龟

沼泽箱龟
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 爬行纲 Reptilia
目: 龟鳖目 Testudines
亚目: 曲颈龟亚目 Cryptodira
科: 泽龟科 Emydidae
属: 箱龟属 Terrapene
种:
沼泽箱龟 T. coahuila
二名法
Terrapene coahuila
Schmidt & Owens, 1944

沼泽箱龟Terrapene coahuila),简称箱龟,是墨西哥特有的

分布

目前在野外只分布于墨西哥

特征

沼泽箱龟的甲壳可生长至16.8厘米。背甲是圆顶形状的,底甲是呈细长的椭圆形。背甲的颜色多数为绿色,棕色或棕黄色。腹甲颜色则多为浅黄色和绿色,但亦有可能出现其他颜色。头部多为棕色。

沼泽箱龟的蛋直径约2.9-3.3CM,部分只有1.7-1.8厘米。幼龟甲壳颜色会有斑点和黑斑,随着年龄的增长,背甲的颜色及斑点会变得暗淡。而成年雄性会有褐色斑点,雌性的斑点则为黄色或棕褐色。

生态

沼泽箱龟会栖息于河流,一些因沉积物而令水生植物生长蓬勃的地方,例如沼泽和湿地等。此龟亦为半水生或半陆地的龟种,龟只有时会浮在水面,并以吸入空气以改变大小的肺部,从而令呼吸系统进行气体交换。

沼泽箱龟属杂食性,会吃昆虫的幼虫、甲壳类、贝类、鱼类、两栖类、水生植物、(如荸荠属植物)、水果及水藻等,有时还会在陆上觅食。

此龟种以卵生形式繁殖,在人工饲养的环境下,春季和秋季之间也会进行交配。每年可产卵2-3次,每次可产下1-8只蛋(多数为2-3个),产卵期为5-9月。龟蛋会在夏季至秋季期间孵化,幼龟多会在9月出生,同时亦会在地面上过冬直至次年的春天。

与人类的关系

由于栖息地被破坏、水质恶化,加上过度捕捞,沼泽箱龟的数量有所下降。但此龟种却受法律保护,如在墨西哥,捕捉和出口都受到严格的限制。而于1995年,濒危野生动植物种国际贸易公约亦将沼泽箱龟列为附录I的物种。

可能是宠物市场的需求,近年被进口到日本

参考

  1. ^ van Dijk, P.P., Flores-Villela, O. & Howeth, J. Terrapene coahuila. The IUCN Red List of Threatened Species 2007. [2009-06-28]. 
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沼泽箱龟
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