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首页> 外文期刊>Aquatic Conservation: Marine and Freshwater Ecosystems >Does reintroduction stabilize the population of the critically endangered gharial (Gavialis gangeticus, Gavialidae) in Chitwan National Park, Nepal?
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Does reintroduction stabilize the population of the critically endangered gharial (Gavialis gangeticus, Gavialidae) in Chitwan National Park, Nepal?

机译：重新引入是否能稳定尼泊尔奇旺国家公园内极度濒危的恒河猴（Gavialis gangeticus ，Gavialidae）的种群？

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摘要

Despite conservation programmes (India 1975, Nepal 1978) gharial populations (Gavialis gangeticus) have declined over their entire distribution range. Information about the current status and main threats is needed to implement effective conservation measures. This study presents a survey (2003/2004) of the largest Nepalese gharial population in the Chitwan National Park that has benefited from regular re-introduction of young gharials since 1981. Population size estimates fluctuate between 34 (2003) and 38 (2004). The reintroduction programme, although of limited success, has helped to maintain the gharial population. Gharials bask preferentially in large sand banks, and these sites must be protected. The main threats are from a dam that causes fish depletion and flushes gharials from the protected area, sand mining and grazing that destroy basking sites, fishing that causes food shortage, drift nets that kill gharial, and water pollution. Improvement in the survival of reintroduced gharials is needed. Strict protection of preferred basking sites and prohibition of fishing in the main settling zones are the principal conservation measures while in the long term, education and participatory management by local people are also necessary.Digital Object Identifier http://dx.doi.org/10.1002/aqc.1151
机译：尽管实行了保护计划（印度1975年，尼泊尔1978年），但在整个分布范围内，har鱼种群（ Gavialis gangeticus ）却下降了。需要有关当前状况和主要威胁的信息以实施有效的保护措施。这项研究提出了一项对奇旺国家公园内最大的尼泊尔羚羊种群的调查（2003/2004），该种群自1981年以来就受到定期重新引入幼虫的影响。种群数量估计在34（2003）和38（2004）之间波动。重新引进计划虽然取得了有限的成功，但却有助于维持盖氏种群。加里尔人优先在大沙堆中晒太阳，这些地点必须得到保护。主要威胁来自水坝，该水坝导致鱼类枯竭，并冲走了保护区中的食人鱼，沙土开采和放牧破坏了栖息地，捕捞导致粮食短缺，流网杀死了食人鱼以及水污染。需要重新引入食管的生存。主要的养护措施是严格保护首选的栖息地并禁止在主要定居区捕鱼，而从长远来看，还需要当地人进行教育和参与式管理。数字对象标识符http://dx.doi.org/ 10.1002 / aqc.1151

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