The amphibians of Ranomafana rain forest, Madagascar – preliminary community analysis and conservation considerations
The amphibians of Ranomafana rain forest, Madagascar – preliminary community analysis and conservation considerations
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马达加斯加拉诺马法纳雨林的两栖动物——初步群落分析和保护考虑
DOI：
10.1017/s003060530002857x
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发表时间：
1994
期刊：
影响因子：
2.7
通讯作者：
F. Andreone
中科院分区：
文献类型：
--
作者：
F. Andreone
Ranomafana国家公园，中海拔雨林中东部马达加斯加，和附近地区的干扰栖息地的两栖动物（订单：无尾目）的调查进行了两个赛季（1991年12月和1992年8月）。共记录到40种蛙类。在未受干扰的地区，有许多严格的陆生物种，其中大多数属于特有科Mantellidae。这些物种在8月和12月之间的丰度变化，可能是由于温度变化。相比之下，在改变的生境中发现的大多数物种是树栖或半树栖的。这些是“生态机会主义”的物种，对栖息地的变化不那么敏感，只要条件有利，就能繁殖。这些物种在12月和8月同样丰富，它们似乎能够生活在更多样化的栖息地拼凑中。为了保护两栖动物的多样性和丰富性，自然保护区应该保留原始森林的中心，以确保更特殊的物种生存，周围是退化植被的缓冲区，以维持更适应青蛙物种的存在。
Surveys of the amphibians (Order: Anura) of Ranomafana National Park, a midaltitude rainforest in central-eastern Madagascar, and nearby areas of disturbed habitats were carried out in two seasons (December 1991 and August 1992). A total of 40 frog species was recorded. In undisturbed areas many strictly terrestrial species were present, most of them belonging to the endemic family Mantellidae. These species showed changes in abundance between August and December, probably due to temperature variation. In contrast, most of the species found in altered habitats were arboreal or semiarboreal. These are ‘ecologically opportunistic’ species, not so sensitive to habitat variations and able to reproduce whenever conditions are favourable. These species were equally abundant in December and August and they appear to be able to live in a more varied habitat patchwork. To preserve the diversity and abundance of amphibians, nature reserves should retain a central core of primary forest to ensure the survival of the more specialized species, surrounded by a buffer zone of degraded vegetation to sustain the presence of more adaptable frog species.