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Monthly totals of arthropods found killed by pathogenic fungi in collections from 5 X 4 quadrats in three forest types in Ghana were shown to be inver...
Read moreAdults of Hylemya (Erioischia) brassicae (Bch.) labelled with 32P were released 24 m from a plot of cabbage and recaptured with water traps. The respo...
Read moreData are presented for a range of species including perennial grasses, white clover, lucerne, cereals and soyabeans on the length of roots per unit ar...
Read morePopulation densities of Heterodera avenae in a sandy soil in Nottinghamshire, UK, decreased to very low levels between 1957 and 1968, despite intensiv...
Read moreAutumn-sown barley in NE Scotland grazed by pink-footed geese (Anser brachyrhynchus) and greylag geese (A. anser) was reduced in height and retarded i...
Read moreGoose (Anser anser and A. brachyrhynchus) grazing on autumn-sown barley was simulated in the field in NE Scotland by removal of 25, 50, 75 or 100% of ...
Read moreThe results of experiments conducted during 1968 showed that the presence of weed within the crop provides a suitable habitat for some of the ground-l...
Read moreManaging social-ecological systems (SES) requires balancing the need to tailor actions to local heterogeneity and the need to work over large areas to...
Read moreA simulation model is described which demonstrates the role of parasitic Hymenoptera in influencing the numbers of the aphid Sitobion avenae on cereal...
Read moreThe importance of niche overlap between parasitoids in the single- or multiple-introduction problem in biological control is exhibited by mathematical...
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