期刊文献+

基于Maxent模型的小鳄龟潜在地理分布预测 预览

Prediction of Potential Geographic Distribution for Common Snapping Turtle( Chelydra serpentina)Based on MaxEnt Modelling
在线阅读 下载PDF
分享 导出
摘要 小鳄龟(Chelydra serpentina)原产于美国和加拿大,是北美纬向分布最广的龟。由于该龟兼具食用价值与观赏价值,许多国家和地区将其作为肉食龟引种养殖,在宠物市场也是十分常见的品种。养殖中管理不善导致的逃逸,宠物饲养者弃养,以及信众的放生,已经使得一定量的个体流入到我国的自然环境中,一旦气候条件适宜便存在高度的入侵风险。为了确定我国哪些地区的气候条件与原产地相似,本研究采用最大熵模型(Maxent)对小鳄龟在世界范围内的潜在分布区进行预测,并重点关注我国的情况。结果显示欧洲、中国和日本均存在大面积的潜在分布区。在中国境内,长江中下游平原及河南省、陕西省为该物种的潜在地理分布。以上地区应当采取有效的预防措施防止小鳄龟在野外定殖。 Common snapping turtle( Chelydra serpentina)is native to USA and Canada. It has the greatest latitudinal distribution of any turtle in North America. As the turtle has high edible value and ornamental value, it has been introduced to many countries as food or as a pet. Snapping turtles have escaped from mismanaged breeding facilities and been abandoned by owners, or released by believers, all of which have introduced snapping turtles into the natural environment in China. There is high risk of invasion if turtles are introduced into areas with suitable climate. To determine which regions have suitable climatic conditions in China, we used the maximum entropy model (Maxent) to predict the potential distribution areas around the world and we focused on China. The results showed that there were large potential distribution areas in Europe, China and Japan. In China, the middle and lower reaches of the Yangtze River Plain, Henan and Shaanxi province proved to be potential distribution areas. These areas should take effective measures to prevent the colonization of C. serpentina.
作者 陈晓璠 陆宇燕 李丕鹏 Chen Xiaofan Lu Yuyan Li Pipeng (Institute of Herpetology, Shenyang Normal University, Shenyang, 110034, China)
出处 《野生动物学报》 北大核心 2017年第3期467-472,共6页
关键词 小鳄龟 生态位模型(ENM) 物种分布模型(SDM) 生物入侵 DIVA-GIS Common snapping turtle Ecological Niche Modeling(ENM) Species Distribution Models(SDMs) DIVA - GIS Biological invasion
作者简介 陈晓瑶,男,33岁,硕士研究生;主要从事两栖爬行动物学研究,侧重于动物地理方向。E—mail:xfxfxff@qq.com 通讯作者:李丕鹏,E—mail:104466606@qq.com
  • 相关文献

参考文献13

二级参考文献458

共引文献219

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈