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Conservation news

机译:保护新闻

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More than 20 years after the endemic Jamaican iguana Cyclura collei was removed from the list of extinct Caribbean iguanas, its fate is again tenuous. Since its rediscovery in 1990, conservation efforts have reversed the species' extinction trajectory. However, it remains a Critically Endangered species. Surviving in just a few square kilometres of the Hellshire Hills in Jamaica, initial estimates suggested as few as 50 adults remained. The remnant population clung to the rugged limestone cliffs in Jamaica's dry forest interior, which provided some level of protection from hunting and exotic predators. Because of high rates of predation, juvenile recruitment was essentially non-existent. Population viability models in 1993 concluded that the remnant, ageing population was doomed unless innovative conservation interventions could be implemented.
机译:牙买加特有的鬣蜥鬣蜥Cyclura collei从灭绝的加勒比鬣蜥名单中删除后的20多年,它的命运再次变得微弱。自1990年重新发现以来,保护工作已扭转了该物种的灭绝轨迹。但是,它仍然是极度濒危的物种。最初的估计数表明,仅在牙买加Hellshire Hills的几平方公里内生存,仅剩下50名成年人。残余的人口紧贴着牙买加干燥森林内部崎rug不平的石灰岩悬崖,为狩猎和外来捕食者提供了一定程度的保护。由于捕食率很高,因此根本不存在少年招募。 1993年的人口生存能力模型得出结论,除非能够实施创新的保护措施,否则剩余的老龄化人口注定要失败。

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    《Oryx》 |2014年第2期|169-171|共3页
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