| 黑肩绿盲蝽对不均匀分布猎物的捕食行为 |
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| 引用本文： | 峗庆才,M.A.Jervis.黑肩绿盲蝽对不均匀分布猎物的捕食行为[J].西南农业大学学报,1988(2). |
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| 作者姓名： | 峗庆才 M.A.Jervis |
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| 作者单位： | 西南农业大学植保系，英国威尔士大学动物系 |
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| 摘 要： | 在人工气候室内黑肩绿盲蝽Cyrtorhinous lividipennis(Reuter)褐对飞虱Nilaparvata lugens Stal高密度小区表现出明显的聚集反应。在褐飞虱密度高的小区出现的时间大于在低密度小区内的时间。其聚集的机制很可能是该捕食者对高猎物密度小区的捕食频繁,停留的时间也更长。尽管黑肩绿盲蝽表现出很明显的聚集行为,但是它们对褐飞虱的捕食率却与褐飞虱的密度无关或成逆密度相关。形成这种现象的据本原因是捕食者的最大食量和该捕食者在各害虫密度小区内的搜索时间限制。
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| 关 键 词： | 不均匀性 分布 捕食性 /黑肩绿盲蝽 |
FORAGING FOR PATCHILY DISTRIBUTED PREYS BY Cyrtorhinus lividipennis (Reuter) |
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| Wei Qingcai,M. A. Jervis.FORAGING FOR PATCHILY DISTRIBUTED PREYS BY Cyrtorhinus lividipennis (Reuter)[J].Journal of Southwest Agricultural University,1988(2). |
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| Authors: | Wei Qingcai M A Jervis |
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| Institution: | Wei Qingcai,M. A. Jervis Department of Plant Protection,Southwest Agricultural University Department of Zoology University of wales,U. K. |
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| Abstract: | This laboratory study was made of foraging time allocation by Cyrt- orhinus lividipennis (Reuter) adults to rice plants containing different densities of their prey (Nilaparvata lugens Stal). The predatoreexhibited a clear aggregative response, spending more total time on highe prey density patches, which probably resulted from C. lividpennis making more and longer visits to these densities. Despite this aggregation, density independent or inversely density dependent predatism was found. This is, believed, caused by time limitation and satiation of the predator in high prey density patches. |
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| Keywords: | irregularity distribution prey: predacity /Cyrtorhinu lividipennis Reuter Nilaparuata lugens stal |
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