野生黄缘闭壳龟资源分布与濒危机制研究

Study on the Resource Distribution and Endangered Mechanism of Wild Cuora Flavomarginata

  • 摘要: 黄缘闭壳龟属世界珍稀濒危物种,中国重点野生保护动物.20世纪70年代前野生黄缘闭壳龟曾广泛分布于中国的河南、安徽、湖北、湖南、浙江、江苏、广西、台湾等省和琉球群岛,野生资源十分丰富,仅河南信阳大别山区的分布面积多达39万hm2,野生种群数量约40万只.但自20世纪80年代后,随着盗猎强度的加剧,黄缘闭壳龟的分布区和栖息地遭到地毯式的搜索,猎捕手段的多样化及其过度猎捕致使黄缘闭壳龟野生资源日益枯竭.目前只在河南大别山区、安徽皖南山区、安徽皖西山区等地还有少量野生个体生存,稳定的黄缘闭壳龟野生种群仅分布于台湾和琉球群岛.导致黄缘闭壳龟野生资源濒危的原因主要是其性成熟周期长、种群繁殖力低、栖息地遭受干扰破坏等因素,另外,人类贪婪无尽地对其野生资源的索取是导致黄缘闭壳龟自然种群濒危灭绝的重要原因.加强黄缘闭壳龟保护区的建设与管理,加大打击盗猎行为,提高公众的保护意识,建立生态补偿机制,开展自然种群的恢复与重建是拯救黄缘闭壳龟濒危灭绝的有效措施.

     

    Abstract: Cuora flavomarginata is a rare and endangered species in the world, which is key wild protected animals of China. Investigations and studies show that:before the 1970s, Cuora flavomarginata were widely distributed in Henan, Anhui, Hubei, Hunan, Zhejiang, Jiangsu, Guangxi, Taiwan and the Ryukyu Islands, which the wild resources are very rich. The distribution area of the Dabie Mountain in Xinyang, Henan over 390 000 hectares, and the number of wild population is about 400 000. However, since the 1980s, with the diversification of hunting means and the increase of poaching intensity, the distribution area and habitat of the Cuora flavomarginata have been searched carefully. Excessive hunting results in the depletion of wild resources of the Cuora flavomarginata. At present, there are only a few wild individuals living in the Dabie Mountains of Henan Province, Wannan and Wanxi Dabie Mountainous areas of Anhui Province. The stable wild population of the Cuora flavomarginata is only distributed in Taiwan and the Ryukyu Islands. Although the reasons for the endangered wild resources include long sexual maturity cycle, low reproductive capacity, habitat destruction and other factors, the essential reason for the extinction of the Cuora flavomarginata's natural population is the endless greedy demand for its wild resources. It is an effective measure to save the endangered species of the Cuora flavomarginata from extinction by strengthening the construction and management of the Cuora flavomarginata protection area, increasing the anti-poaching behavior, improving the public's protection awareness, establishing the ecological compensation mechanism, and carrying out the restoration and reconstruction of the natural population.

     

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