Pteropus vampyrus, a hunted migratory species with a multinational home-range and a need for regional management
Pteropus vampyrus, a hunted migratory species with a multinational home-range and a need for regional management
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DOI：
10.1111/j.1365-2664.2009.01699.x
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发表时间：
2009-10-01
影响因子：
5.7
通讯作者：
Daszak, Peter
中科院分区：
文献类型：
--
作者：
Epstein, Jonathan H.;Olival, Kevin J.;Daszak, Peter
1.迁徙物种的管理是具有挑战性的，因为没有足够的数据，远距离移动模式，栖息地的使用，以及人为压力的影响（例如。G. 2、在自己的家乡。我们利用栖息地调查和卫星遥感技术，评估了马来狐蝠（Pteropus vampyrus）的当前丰度和流动性，狐蝠是一种在东南亚具有生态和经济意义的受威胁果蝠物种。我们将其与猎人许可证销售和人口预测模型的数据相结合，以评估马来西亚半岛目前狩猎行为的影响和可持续性。我们监测了33个活跃的Pteropus vampyrus栖息地在马来西亚半岛，包括8个季节性栖息地。在3年的研究期间，栖息地占有率表现出相当大的时间变化。自1996年以来，狩猎活动增加了一倍多，根据许可证销售，我们估计，2002年至2005年期间，至少有87800只蝙蝠的法律的收获。种群模型表明，鉴于我们的基线丰度为10万、25万或50万只蝙蝠，这种狩猎水平可能是不可持续的，特别是考虑到这些模型不包括将马来狐蝠作为农业害虫或非法狩猎活动进行扑杀，因为没有可用的数据。对七只成年雄性蝙蝠的卫星遥测显示，马来亚狐蝠具有高度移动的性，一年内在栖息地之间旅行数百公里，并占据了马来西亚以外的包括印度尼西亚和泰国在内的家庭范围。我们的结论是，在马来西亚的焦点狩猎压力威胁到这种迁徙哺乳动物的区域人口。合成与应用。这是亚洲首次对狐蝠进行此类研究，并表明蝙蝠与其他迁徙物种一样，迫切需要通过区域管理计划对其范围进行全面保护。P. vampyrus跨越东南亚的国际边界。马来西亚境内目前的狩猎做法，加上其他国家对狩猎的保护有限，可能威胁到其长期生存。
1. The management of migratory species is challenging because of insufficient data on long-range movement patterns, habitat use, and the impact of anthropogenic pressures (e. g. hunting) throughout their home ranges.2. We evaluate the current abundance and mobility of the Malayan flying fox Pteropus vampyrus, a threatened fruit bat species of ecological and economic significance across Southeast Asia, using roost site surveys and satellite telemetry. We combined this with data from hunter license sales and population projection models to assess the impact and sustainability of current hunting practices in Peninsular Malaysia.3. We monitored 33 active Pteropus vampyrus roost sites in Peninsular Malaysia, including eight seasonal roost sites. Roost site occupancy showed considerable temporal variation over the 3-year study period.4. Hunting activity has more than doubled since 1996, and based on license sales, we estimate that a minimum legal harvest of 87 800 bats occurred between 2002 and 2005. Population models suggest that this level of hunting is likely to be unsustainable given our baseline abundance scenarios of 100 000, 250 000 or 500 000 bats, especially considering that these models do not include culling of Malayan flying foxes as agricultural pests or illegal hunting activities, for which there are no available data.5. Satellite telemetry of seven adult male bats show that Malayan flying foxes are highly mobile, travelling hundreds of kilometres between roosting sites within a year and occupying home ranges that extend beyond Malaysia to include Indonesia and Thailand. We conclude that focal hunting pressure in Malaysia threatens a regional population of this migratory mammal.6. Synthesis and applications. This is the first study of its kind on flying foxes in Asia, and illustrates that bats, like other migratory species, urgently require comprehensive protection by regional management plans across their range. P. vampyrus moves across international borders in Southeast Asia. Current hunting practices within Malaysia together with limited protection in other countries may threaten its long-term survival.