M. G. Morris, Differences Between the Invertebrate Faunas of Grazed and Ungrazed Chalk Grassland. IV. Abundance and Diversity of Homoptera-Auchenorhyncha, Journal of Applied Ecology, Vol. 8, No. 1 (Apr., 1971), pp. 37-52
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M. G. Morris (1971) studied this question.
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