Assessment of higher insect taxa as bioindicators for different logging-disturbance regimes in lowland tropical rain forest in Sabah, Malaysia
Assessment of higher insect taxa as bioindicators for different logging-disturbance regimes in lowland tropical rain forest in Sabah, Malaysia
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DOI：
10.1007/s11284-006-0052-6
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发表时间：
2007-07-01
影响因子：
2
通讯作者：
Toda, Masanori J.
中科院分区：
文献类型：
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作者：
Akutsu, Kosuke;Khen, Chey Vun;Toda, Masanori J.
自1980年代以来，严重的环境问题之一是，在热带森林中，高森林砍伐与维持健康生态系统服务的高率和生物学价值之间的冲突。迫切需要建立适当的环境评估，以保持健康的生态系统功能和生物多样性以及基于生态学的可持续森林使用。在这项研究中，我们试图评估对低地热带雨林（马来西亚沙巴州德拉马科特森林储备）中几种飞行昆虫群（高分类虫方法）的丰富性的记录障碍影响，同时考虑了季节性变化和垂直森林地层。阳离子。这个季节是影响所有昆虫群体丰富性的最重要因素。在地下室中，日志记录干扰的影响很明显，但在树冠中含糊不清。日志记录引起的身体状况的变化 - 可能由于太阳辐射引起的蒸发增加 - 可能减少了对干燥敏感昆虫的丰富性，尤其是在地下室中。也有两个可能的原因是地下室事件与冠层中的事件之间的差异：（1）各种物理，环境因素的噪声影响可能掩盖了昆虫对冠层伐木干扰的反应； （2）冠层提供的较高时空质量和数量质量和数量的生存食物资源（例如叶子和水果）可能影响了他们自1980年代以来的严重环境问题之一的丰富性是在热带森林中健康生态系统服务和生物学价值的高森林砍伐和维持率。迫切需要建立适当的环境评估，以保持健康的生态系统功能和生物多样性以及基于生态学的可持续森林使用。在这项研究中，我们试图评估对低地热带雨林（马来西亚沙巴特德拉马科特森林储备）中几种飞行昆虫群体（高-Taxon方法）的丰富性的记录扰动影响，同时考虑了季节性变化和垂直森林分层。这个季节是影响所有昆虫群体丰富性的最重要因素。在地下室中，日志记录干扰的影响很明显，但在树冠中含糊不清。日志记录引起的身体条件的变化明显增加了由于太阳辐射涉及的蒸发量增加了对干燥敏感的昆虫的丰富性，尤其是在地下室中。也有两个可能的原因是地下室事件与冠层中的事件之间的差异：（1）各种物理，环境因素的噪声影响可能掩盖了昆虫对冠层伐木干扰的反应； （2）较高的生存食物资源质量和数量的时空变化，例如叶片中提供的叶子，鲜花和水果，可能会影响其丰富的消费者昆虫，而不是独立于伐木障碍。因此，这项研究表明，某些昆虫群在高核心水平（尤其是在地下室）中的丰度可以用作评估伐木障碍对森林生态系统的影响的生物指导者。
One of the serious environmental problems since the 1980s has been the conflict between the high rate of deforestation and maintenance of healthy ecosystem services and biological values in tropical forests. There is an urgent demand for setting up an appropriate environmental assessment to keep healthy ecosystem functions and biodiversity along with sustainable forest use based on ecology. In this study, we tried to assess logging- disturbance effects on the abundances of several flying insect groups ( higher- taxon approach) in lowland tropical rain forest ( Deramakot Forest Reserve, Sabah, Malaysia), while considering seasonal changes and vertical forest strati. cation. The season was the most important factor affecting the abundances of all the insect groups. Effects of logging disturbance were prominent in the understorey but obscure in the canopy. Changes in physical conditions caused by logging - possibly an increased evaporation due to solar radiation - may have decreased the abundance of desiccation-sensitive insects, especially in the understorey. There are also two probable reasons for the difference between events in the understorey and those in the canopy: ( 1) noise effects of various physical, environmental factors may have obscured insect responses to logging disturbance in the canopy; ( 2) higher spatio-temporal variation in quality and quantity of living food resources - such as leaves flowers and fruits - provided in the canopy may have affected the abundance of their One of the serious environmental problems since the 1980s has been the conflict between the high rate of deforestation and maintenance of healthy ecosystem services and biological values in tropical forests. There is an urgent demand for setting up an appropriate environmental assessment to keep healthy ecosystem functions and biodiversity along with sustainable forest use based on ecology. In this study, we tried to assess logging-disturbance effects on the abundances of several flying insect groups (higher-taxon approach) in lowland tropical rain forest (Deramakot Forest Reserve, Sabah, Malaysia), while considering seasonal changes and vertical forest stratification. The season was the most important factor affecting the abundances of all the insect groups. Effects of logging disturbance were prominent in the understorey but obscure in the canopy. Changes in physical conditions caused by logging-possibly an increased evaporation due to solar radiation-may have decreased the abundance of desiccation-sensitive insects, especially in the understorey. There are also two probable reasons for the difference between events in the understorey and those in the canopy: (1) noise effects of various physical, environmental factors may have obscured insect responses to logging disturbance in the canopy; (2) higher spatio-temporal variation in quality and quantity of living food resources-such as leaves, flowers and fruits-provided in the canopy may have affected the abundance of their consumer insects independently of logging disturbance. Thus, this study suggests that the abundance of some insect groups at higher-taxon level, especially in the understorey, can be used as bioindicators for assessing effects of logging disturbance on the forest ecosystem.