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The possibility of sustainable pest management by introducing bio-diversity: simulations of pest mite outbreak and regulation

文献类型: 外文期刊

作者: Tsuji, Nobuyuki 2 ; Chittenden, Anthony R. 2 ; Ogawa, Takuya 1 ; Takada, Takenori 3 ; Zhang, Yan-Xuan 4 ; Saito, Yu 1 ;

作者机构: 1.Hokkaido Univ, Anim Ecol Lab, Res Fac Agr, Sapporo, Hokkaido 0608589, Japan

2.Hokkaido Univ, SGP, Ctr Sustainabil Sci, Sapporo, Hokkaido 0600809, Japan

3.Hokkaido Univ, Lab Math Ecol, Grad Sch Earth Environm Sci, Sapporo, Hokkaido 0600810, Japan

4.Fujian Acad Agr Sci, Inst Plant Protect, Fuzhou 350013, Peoples R China

关键词: Moso bamboo;Chinese silvergrass;Tetranychid;Phytoseiid;Predator-prey interaction;Numerical simulation

期刊名称:SUSTAINABILITY SCIENCE ( 影响因子:6.367; 五年影响因子:6.654 )

ISSN: 1862-4065

年卷期: 2011 年 6 卷 1 期

页码:

收录情况: SCI

摘要: Since the late 1980s, spider mite pests have caused serious damage to many moso bamboo (Phyllostachys pubescens) forests in China's Fujian province. The culms of this plant are an essential component of the building and handicraft industries, and the shoots are a prized food item in many Asian countries. Furthermore, bamboo forests play an important soil conservation role in mountainous areas. We examined pest mite outbreaks in several moso bamboo plantations in Fujian, and could show that a change in cultivation style from polyculture (a kind of mixed forest) to monoculture (all plants other than bamboo were removed) was primarily responsible for the local extinction of an important predaceous mite species. This phenomenon is due to the periodic shedding of leaves by the bamboo, which forces the predator mites occurring on bamboo to switch to prey mite species that occur on other plants. We then tried to elucidate the factors that resulted from such a cultivation change. Adopting a computer simulation approach, we could successfully show that at least two plants, moso bamboo and Chinese silvergrass, are necessary to maintain stable predator-prey interactions in moso forests. That is, systems consisting of one common predator and two host-specific pest mites on different host plant species frequently became stable when the pest mites were at low density. This finding indicates clearly that bio-diversity, even when it consists of only two plants and three mite species as in this study, is necessary for the sustainable regulation of large-scale forests, such as moso bamboo plantations.

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[1]Ambulatory migration in mites (Acari : Tetranychidae, Phytoseiidae) to new leaves of moso bamboo shoots. Zhang, YX,Saito, Y,Lin, JZ,Chittenden, AR,Ji, J,Sato, Y. 2003

[2]Arrestment response of the predatory mite Amblyseius longispinosus to Schizotetranychus nanjingensis webnests on bamboo leaves (Acari : Phytoseiidae, Tetranychidae). Zhang, YX,Ji, J,Zhang, ZQ,Lin, JZ. 2000

[3]Numerical simulation of flow hydrodynamics of struvite pellets in a liquid-solid fluidized bed. Ye, Xin,Chu, Dongyuan,Lou, Yaoyin,Ye, Zhi-Long,Chen, Shaohua,Chu, Dongyuan,Wang, Ming Kuang.

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