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M. Digiulio ; P. Edwards ; E. Meister | 20011. During the last few years a variety of methods have been applied in Switzerland to preserve and enhance biological diversity in agricultural systems. The purpose of this study was to evaluate grassland management techniques in respect of thei[...]article/chapitre/communication
A. Dixon ; P. Kindlmann ; V. Jarosik | 19951. The distribution of the body sizes of British aphids is right-skewed on a logarithmic axis, as in other taxa, Over the size range 2-5 mm there is a marked decrease in numbers of species with increase in size, which on a log log scale has an e[...]