Patterns of Insect Abundance and Distribution in Urban Domestic Gardens in Bangalore, India
Patterns of Insect Abundance and Distribution in Urban Domestic Gardens in Bangalore, India
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印度班加罗尔城市家庭花园昆虫丰度和分布模式
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
H. Nagendra
中科院分区：
文献类型：
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作者：
Madhumitha Jaganmohan;L. S. Vailshery;H. Nagendra
家庭花园可能在支持城市昆虫生物多样性方面发挥至关重要的作用，尽管它们的规模很小。本文通过对印度迅速发展的城市班加罗尔的研究，评估了热带地区城市家庭花园中昆虫的丰度、多样性和分布。50个家庭花园进行了研究，使用光陷阱和陷阱陷阱的组合。我们记录了大量的昆虫，10个目2,185只昆虫，其中蚂蚁、臭虫、甲虫和苍蝇是最常见的。我们发现25种树木（从160个人）和117种草本植物和灌木在50个采样的家庭花园。遇到的昆虫目的数量显着相关的树木和草本/灌木物种的数量。花园管理的做法也影响了昆虫的数量和丰富程度。因此，在花园中观察到更多的昆虫，裸露的土壤相对于草地面积的比例更大，除草强度更低。在有堆肥坑的花园里遇到了更多的昆虫。在施用农药的花园中，昆虫数量显着减少。大多数居民以健康问题为由避免使用杀虫剂和除草剂。
Domestic gardens may play a vital role in supporting urban insect biodiversity, despite their small size. This paper assesses the abundance, diversity and distribution of insects in urban domestic gardens in the tropics, through a study in the rapidly expanding Indian city of Bangalore. Fifty domestic gardens were studied using a combination of light traps and pitfall traps. We recorded a large number of insects, 2,185 insects from 10 orders, of which ants, bugs, beetles and flies were the most common. We found 25 species of trees (from 160 individuals) and 117 species of herbs and shrubs in the 50 sampled domestic gardens. The number of insect orders encountered was significantly related to the number of tree and herb/shrub species. Garden management practices also influenced the abundance and richness of insect orders. Thus, greater numbers of insects were observed in gardens with a greater proportion of bare soil relative to grass area and with less intensive weeding practices. More insect orders were encountered in gardens with a composting pit. Insect numbers were significantly reduced in gardens subjected to pesticide application. Most residents avoided application of pesticides and herbicides, citing health concerns.