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Diversity of insect communities with different development phases in natural Populus euphratica forests in Xinjiang

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Forest Ecosystems 2008年第1期10卷 56-59页

作者： QIAO Hai-li1,2, LUO You-qing1*, TIAN Cheng-ming1, SUN Jian-hua3, FENG Xiao-feng4 1Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, P. R. China 2Institute of Health & Environment of Wenzhou Medical College, Wenzhou 325035, P. R. China 3Forest Pest Control Station of Bayingolin Mongolia Autonomous District of Xinjiang, Korla 841000, P. R. China 4Forest Pest Control Station of Xinjiang Uygur Autonomous Region, Urumqi 830000, P. R. China Key Laboratory for Silviculture and Conservation of Ministry of Education Beijing Forestry University Beijing P. R. China Institute of Health & Environment of Wenzhou Medical College Wenzhou P. R. China Forest Pest Control Station of Bayingolin Mongolia Autonomous District of Xinjiang Korla P. R. China Forest Pest Control Station of Xinjiang Uygur Autonomous Region Urumqi P. R. China

An investigation method with sample plots was used to study insect communities in four different growth phases of natural Populus euphratica forests, which are juvenile, middle aged, over-mature and degraded forests, in Tarim, Xinjiang in July, 2005 and April, 2006. In our studies, 5,116 insect specimens, belonging to 12 orders, 61 families and 141 species, were collected. Lepidoptera and Coleoptera were the dominant orders. In middle-aged forests, species, individual numbers and diversity indices of insect communities were higher than those in other woodlands. The species richness and diversity indices were lowest in degraded forests because of extremely scarce vegetation.

关键词： Xinjiang natural Populus euphratica forest insect community diversity

不同立地条件下昆虫群落对松毛虫密度影响的估计(英文)

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insect Science 1998年第2期5卷 166-176页

作者：李天生周国法吴坚中国林业科学研究森林保护研究所!北京 100091 100875 100083 北京师范大学生物系北京大学分校数学系!北京

天敌在松毛虫种群动态中起重要作用，但把天敌的作用加入系统管理模型中却很困难。本文试图用林分因子代替天敌的作用，因为林分条件可以方便地用于系统模型中。通过对浙江省衢县、常山县和龙游县不同立地条件的222块样地的调查数据的... 详细信息

天敌在松毛虫种群动态中起重要作用，但把天敌的作用加入系统管理模型中却很困难。本文试图用林分因子代替天敌的作用，因为林分条件可以方便地用于系统模型中。通过对浙江省衢县、常山县和龙游县不同立地条件的222块样地的调查数据的分析，从70多科的昆虫群落中选择了16个关键种（科），并对林分因子和各样地关键种的种数、个体数、多样性之间的关系进行了典型相关分析。结果表明郁闭度和植被条件（灌木层盖度、灌木层高度、草木层盖度、草木层高度、总盖度）是刻划昆虫群落功能的关键林分因子。根据郁闭度的变化和植被条件用系统聚类方法可以把林区分为四种类型，这四种类型林地的昆虫多样性指数、种数、个体数量和松毛虫的密度都存在明显差异；在每种林地都建立了松毛虫密度的变化率与关键林分因子间的回归模型，所有的回归的相关系数都相当高（0．924－0．964），因此可以认为对林地的分类是合理的，而且用林分因子评估天敌的影响在实践中是可行的。

关键词： insect community stand conditions pine caterpillar

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马尾松林昆虫群落及其时空结构的研究

林业科学研究 1988年第4期1卷 397-404页

作者：任立宗王淑芬中南林学院中国林业科学研究院林业研究所

本文对湖南省靖县排牙山林场六种不同类型马尾松林的昆虫群落(包括蜘蛛)进行了初步研究。在所获688种昆虫和蜘蛛中,没有一种在群落中占有绝对优势,其数量分布比较均匀。研究结果表明:不同类型的林分,其昆虫群落的稳定性有差异。在林龄... 详细信息

本文对湖南省靖县排牙山林场六种不同类型马尾松林的昆虫群落(包括蜘蛛)进行了初步研究。在所获688种昆虫和蜘蛛中,没有一种在群落中占有绝对优势,其数量分布比较均匀。研究结果表明:不同类型的林分,其昆虫群落的稳定性有差异。在林龄和郁闭度这两个重要的林分因子中,以林龄对稳定性的影响较大。本文提出用昆虫群落多样性指数变化的年极差(ED)及天敌/害虫比值(NE/P)这两个指标来评定群落的稳定性,试图从实质上阐明昆虫群落是否稳定的原因。在马尾松林由幼林向中林、成林发育的过程中,昆虫群落的天敌数量逐渐增多,害虫数量则相对减少,因而昆虫群落的自控能力亦逐渐增强,使之由比较不稳定到比较稳定。马尾松;;昆虫群落;;多样性指数

关键词： Pinus massoniana insect community diversity indices

Preliminary Study on Dynamic Changes of insect Communities in Airport Ground Cover Areas in Different Weather Conditions

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Agricultural Biotechnology 2021年第6期10卷 46-48页

作者： Ziyuan WANG Shiquan LI Shulan ZHAO Li’an DUO College of Life Sciences Tianjin Normal UniversityTianjin 300300China

[Objectives]This study was conducted to investigate insect activity rhythms in airport ground cover areas,and provide guidance for insect control and bird strike prevention.[Methods]The daily rhythm of insects in the northern area of the airport was studied,and their activity rhythms and characteristics under different weather conditions were analyzed.[Results]In rainy days,the insect number in the three sample areas was low.In cloudy days,insect activity was relatively stable,and insect number was consistent in the morning and evening,and maintained in a stable range,while in sunny weather,insect activity was increased,and the number changed greatly with time.For a single tussock plant growth area,the number of insects was at a relatively low level under rainy weather.In fine weather,the peak period of insect activity was between 10:00-11:00 and 14:00-15:00.[Conclusions]This study can provide a reference for the formulation of safe flight departure time.

关键词： Airport Weather Ground cover area insect community