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石棉县的大凉螈分布、种群现状及保护建议

Distribution, Population Status, and Conservation Recommendations of the Population of Liangshantriton taliangensis in Shimian County

  • 摘要: 大凉螈是大凉山地区的特有两栖动物,具有重要的进化地位和保护关注度,石棉县是该物种重要的分布区之一。本文通过实地调查和问询法,调查了大凉螈在石棉县的分布及种群现状。发现该物种在石棉县分布较广,目前调查到有8个分布点,其种群数量较丰富,栖息地类型选择宽泛;但该种群受人为捕捉、环境污染、外来物种入侵和繁殖场地减少等影响,部分种群有下降趋势。根据研究结果提出了一系列的针对性保护措施和建议。

     

    Abstract: Liangshantriton taliangensis is an endemic amphibian in the Daliang Mountain area,which has a unique evolution priority and conservation concern.Shimian County is one of most important distribution areas.Its distribution and population status in Shimian County were investigated by questionnaire and quadrate methods.The results showed that the Liangshantriton taliangensis amphibians were widely distributed in Shimian county,and 8 localities were identified.The populations were relatively abundant. Owing to the human harvesting,pollution,invasive species,and degradation of breeding habitats,some populations were declining.Therefore, a series of conservation recommendations were presented.

     

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