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Dipterous stem-boring larval populations were assessed in rotationally grazed or cut plots of ryegrass [Lolium perenne] in southern England throughout...
Read moreLife tables are presented for 4 consecutive generations of Psila rosae on carrots in southern England, and are analysed using key factor analysis. Of ...
Read moreGrazing by ungulate herbivores can greatly alter nitrogen ([N]) and phosphorus ([P]) concentrations in plants and soils. It is not clear, however, how...
Read moreEstimates of damage to maize by individual red-winged blackbirds (Agelaius phoeniceus) were derived from energetics and life history information and i...
Read moreThe following is virtually the author's summary. Observations in southern England in 1964-67 showed that the period when most of the Hymenopterous par...
Read moreThe scientific papers presented at this conference on integrated control of crop pests in Britain comprised: Integrated control and the Advisory Servi...
Read moreThe following is virtually the authors' conclusion and summary. The proportion of eyries of the golden eagle (Aqutta chrysaetos) in western Scotland i...
Read moreThe following is virtually the author's summary. The patterns of distribution, of insects flying over pasture, to leeward of a mixed hedge in southern...
Read moreThe following is based largely on the author's summary. The insect communities on vegetation in a mixed hedgerow and in neighbouring fields of pasture...
Read moreA system of equations was developed to describe the reciprocal effects of stand density and quadratic mean diameter through time, using data from a lo...
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