Ecological effects of lianas in fragmented forests
Ecological effects of lianas in fragmented forests
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DOI：
10.1002/9781118392409.ch29
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发表时间：
2014-10
期刊：
影响因子：
--
通讯作者：
M. Campbell;W. Laurance;Ainhoa Magrach
中科院分区：
文献类型：
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作者：
M. Campbell;W. Laurance;Ainhoa Magrach
了解生物多样性如何在保留在许多热带地区的小片森林中持续存在是一个至关重要的优先事项。本章综述了热带破碎林地藤本植物群落和藤本植物与树木相互作用的现有研究。虽然还有很多未知的地方，但很明显，藤本植物在破碎森林中的丰度往往急剧增加。曾经连续的原始森林的破碎化导致整个景观的藤本植物丰富度和树木侵染率的显著增加。藤本植物丰度的增加主要有三个原因。在破碎化的森林景观中，森林边缘的面积大大增加，森林边缘是藤本植物的优先栖息地。其次，在许多森林碎片中，大树死亡率、树木周转率和树木林隙的形成率都有所上升，这再次增加了藤本植物首选的受干扰和光照良好的栖息地的数量。最后，最初的森林损失和破碎化可能导致更大范围的森林更新（“年轻”森林）。
Understanding how biodiversity persists in the small fragments of forest that remain in many tropical regions is a vital priority. This chapter reviews available studies on liana communities and liana–tree interactions in fragmented tropical forests. Although much remains unknown, it is apparent that lianas often increase dramatically in abundance in fragmented forests. Fragmentation of once-continuous primary forests results in a considerable increase in landscape-wide liana abundance and rates of tree infestation. There are three main reasons for the increase in liana abundance. First, the area of forest edge greatly increases within fragmented forest landscapes and forest edges are preferential liana habitat. Second, elevated rates of large tree mortality, turnover and treefall-gap creation occur in many forest fragments, which again enhance the amount of available disturbed and well-lit habitat preferred by lianas. Finally, initial forest loss and fragmentation may lead to a greater area of forest regeneration ("younger" forest).