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Salindra K. DAYANANDA, Eben GOODALE, Myung-bok LEE, Jia-Jia LIU, Christos MAMMIDES, Bonifacio O. PASION, Rui-Chang QUAN, J. W. Ferry SLIK, Rachakonda SREEKAR, Kyle W. TOMLINSON, Mika YASUDA. 2016: 森林碎片化对夜行性亚洲鸟类的影响:以中国西双版纳地区为例. 动物学研究, 37(3): 151-158. DOI: 10.13918/j.issn.2095-8137.2016.3.151
引用本文: Salindra K. DAYANANDA, Eben GOODALE, Myung-bok LEE, Jia-Jia LIU, Christos MAMMIDES, Bonifacio O. PASION, Rui-Chang QUAN, J. W. Ferry SLIK, Rachakonda SREEKAR, Kyle W. TOMLINSON, Mika YASUDA. 2016: 森林碎片化对夜行性亚洲鸟类的影响:以中国西双版纳地区为例. 动物学研究, 37(3): 151-158. DOI: 10.13918/j.issn.2095-8137.2016.3.151
Salindra K. DAYANANDA, Eben GOODALE, Myung-bok LEE, Jia-Jia LIU, Christos MAMMIDES, Bonifacio O. PASION, Rui-Chang QUAN, J. W. Ferry SLIK, Rachakonda SREEKAR, Kyle W. TOMLINSON, Mika YASUDA. 2016: Effects of forest fragmentation on nocturnal Asian birds: A case study from Xishuangbanna, China. Zoological Research, 37(3): 151-158. DOI: 10.13918/j.issn.2095-8137.2016.3.151
Citation: Salindra K. DAYANANDA, Eben GOODALE, Myung-bok LEE, Jia-Jia LIU, Christos MAMMIDES, Bonifacio O. PASION, Rui-Chang QUAN, J. W. Ferry SLIK, Rachakonda SREEKAR, Kyle W. TOMLINSON, Mika YASUDA. 2016: Effects of forest fragmentation on nocturnal Asian birds: A case study from Xishuangbanna, China. Zoological Research, 37(3): 151-158. DOI: 10.13918/j.issn.2095-8137.2016.3.151

森林碎片化对夜行性亚洲鸟类的影响:以中国西双版纳地区为例

Effects of forest fragmentation on nocturnal Asian birds: A case study from Xishuangbanna, China

  • 摘要: 猫头鹰是斑块生境中重要的物种类群,能够调整该类生境中物种组成。但有关斑块生境对猫头鹰多样性和丰富度影响的研究十分稀少,尤其是在热带地区。该研究应用样线法,调查了位于西双版纳地区20个森林斑块中猫头鹰物种组成;检验并比较森林“破碎化因素”(如斑块面积,隔离程度)和“位置效应”(如地形、植被和土壤)对斑块生境中猫头鹰物种组成的影响。研究结果表明破碎化对猫头鹰多样性影响比位置效应更为显著,大斑块中物种多样性更高;而广义线性混合模型预测每个物种在斑块中出现可能性的结果表明,8个猫头鹰物种中有4个在大斑块中出现的可能性更高。基于猫头鹰能够对一些散布植物种子的小型哺乳动物以及其他动物种群进行调控,从而间接影响植物种子扩散;建议在制定保护策略时应优先加强对大斑块的保护,同时增加小斑块间的连接性。

     

    Abstract: Owls have the potential to be keystone species for conservation in fragmented landscapes, as the absence of these predators could profoundly change community structure. Yet few studies have examined how whole communities of owls respond to fragmentation, especially in the tropics. When evaluating the effect of factors related to fragmentation, such as fragment area and distance to the edge, on these birds, it is also important in heterogeneous landscapes to ask how ‘location factors’ such as the topography, vegetation and soil of the fragment predict their persistence. In Xishuangbanna, southwest China, we established 43 transects (200 m×60 m) within 20 forest fragments to sample nocturnal birds, both visually and aurally. We used a multimodel inference approach to identify the factors that influence owl species richness, and generalized linear mixed models to predict the occurrence probabilities of each species. We found that fragmentation factors dominated location factors, with larger fragments having more species, and four of eight species were significantly more likely to occur in large fragments. Given the potential importance of these birds on regulating small mammal and other animal populations, and thus indirectly affecting seed dispersal, we suggest further protection of large fragments and programs to increase their connectivity to the remaining smaller fragments.

     

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