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'Densite dependance' 
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M. Maudsley ; A. Mackenzie ; J. Thacker ; A. Dixon | 1996Long sequences of data on the incidence of cereal aphids from five European countries were analysed for evidence of density dependent processes occurring between years. Using a randomisation test (Pollard, Lakhani & Rotheray, 1987), density depe[...]
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Stary P. | 1969
ouvrage
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J. Walgenbach | 1994The distribution patterns of parasitized and nonparasitized potato aphids, Macrosiphum euphorbiae (Thomas), were assessed on four plantings of staked tomatoes from 1988 to 1990. Within plant distribution of nonparasitized aphids changed through [...]
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X. Ru-Mei | 1985
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M. Ryoo | 1996In a model system composed of 16 leaf disks (Phaseolus vulgaris L.) distributed uniformly in an arena (50 x 50 cm), the influence of both the spatial dispersion pattern of prey (eggs of Tetranychus urticae Koch) and the transit time of the preda[...]
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G. Nachman | 1981
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E. Evans ; N. Youssef | 1992
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Spatial aspects of the interaction between the aphid host. Aphis gossypii. and its parasite. Allothrombium pulvinum larvae, on cotton plants were examined in seven fields in China. For both the host and the parasite, sample variance increased wi[...]
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D. Raworth | 1984
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