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Global urbanisation reduces greenery and species richness (biodiversity) and limits opportunities for most children to gain experiences of nature. Dis...
Read moreThe widespread drainage of wetlands and grazing marshes has been one of the main drivers of severe reductions in the number and range of breeding wade...
Read moreRecent advances in our understanding of the advantage of initial size in competition among individual plants (size-asymmetric competition) suggest tha...
Read moreThe uptake patterns of cadmium and copper by Aphis fabae from its food plant, Vicia faba, grown under control and elevated metal treatments, were comp...
Read moreThe cereal aphid outbreaks of 1979 (Metopolophium dirhodum) and 1980 (Sitobion avenae) and their lower populations in 1981, in Norfolk, eastern Englan...
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 moreA statistical model is presented which explores the effects of weed patchiness on crop yield. Input data are a non-linear regression of yield versus w...
Read moreThe temperature requirements of five aphid species (Acyrthosiphon pisum (Harris), Aphis craccivora Koch, Brevicoryne brassicae(L.). Macrosiphum avenae...
Read moreThe severe and ongoing decline in semi-natural grassland habitat during the past two centuries means that it is important to consider how other, margi...
Read moreA method is described for the study of the fates of unprotected seeds in soil. Its key features include: (1) selection of seeds on the basis of antici...
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