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首页> 外文期刊>Ocean & coastal management >Clear-cutting decreases nest occupancy of Brahminy Kite Haliastur indus in a managed mangrove forest of Southeast Asia
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Clear-cutting decreases nest occupancy of Brahminy Kite Haliastur indus in a managed mangrove forest of Southeast Asia

机译：砍伐减少了东南亚有管理红树林的婆罗门风筝哈立斯印度梧桐的巢居

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摘要

Mangroves are localised and fragile ecosystems that provide important services to society. The rate of conversion and disappearance of mangroves globally is alarmingly high and unabated. In order to effectively manage this ecosystem and the species it supports, it is crucial to understand its ecological properties and relationships. Unfortunately this information is often scarce or lacking. Here we study factors affecting nest occupancy of the Brahminy Kite Haliastur indus in mangrove forests under different management practices in Malaysia. We modelled effects of different land-use variables as well as distance to infrastructures at different spatial scales around a nest. We show that, among all variables considered (including cover of agriculture, productive forest, restricted production forest, protected forest, unproductive and young forests, clear-cut, estuary, distance to villages and main roads), the area of clear-cut was the only significant determinant of nest occupancy. As clear-cut area around a nest increased from zero to just few hectares, the probability of nest occupancy was steeply reduced. This effect was particularly evident when clear-cuts occurred in the immediate surroundings of a nest (i.e. within 150 m distance). These results clearly indicate that forestry practices, such as clear-cutting, have a detrimental effect on Brahminy Kite and should thus be avoided in their nest vicinity. Our findings reinforce the importance of understanding the basic ecology of a system in order to take evidence-based conservation management decisions.
机译：红树林是局部的脆弱生态系统，为社会提供重要服务。全球红树林的转化和消失的速度令人震惊地高而且没有减弱。为了有效管理这个生态系统及其支持的物种，了解其生态特性和关系至关重要。不幸的是，这些信息通常是稀缺或缺乏的。在这里，我们研究了在马来西亚不同管理方式下，红树林中婆罗门风筝Haliastur indus的巢居影响因素。我们对不同土地利用变量的影响以及在巢周围不同空间尺度上距基础设施的距离进行了建模。我们表明，在考虑的所有变量（包括农业覆盖率，生产性森林，限制生产的森林，受保护的森林，非生产性和幼小的森林，明确的河口，河口，到村庄和主要道路的距离）中，明确的面积为窝占用的唯一重要决定因素。随着巢周围的净切面积从零增加到仅几公顷，巢的占有率急剧下降。当在巢的直接周围区域（即150 m距离内）发生明晰的切割时，这种效果尤其明显。这些结果清楚地表明，伐木等林业做法对婆罗门风筝有不利影响，因此应避免在其巢穴附近进行。我们的发现加强了理解系统基本生态学以采取基于证据的保护管理决策的重要性。

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  • 来源
    《Ocean & coastal management》 |2014年第6期|60-66|共7页
  • 作者

    Abolghasem Khaleghizadeh; Andrea Santangeli; Shahrul Anuar;

  • 作者单位

    School of Biological Sciences, Universiti Sains, USM 11800 Pulau Pinang, Malaysia,Ornithology Laboratory, Agricultural Zoology Research Department, Iranian Research Institute of Plant Protection, P.O. Box 1454, Tehran 19395, Iran;

    Department of Biosciences, University of Helsinki, P.O. Box 65 (Viikinkaari 1), FI-00014 Finland;

    School of Biological Sciences, Universiti Sains, USM 11800 Pulau Pinang, Malaysia;

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