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Showing 228 results
Few studies have addressed how density-dependent and density-independent regulation of population growth and abundance varies among habitats for a spe...
Read morePesticides applied to seeds before sowing may present a high risk to seed-eating birds. Some of these chemicals are highly toxic but are avoided by ca...
Read moreEuropean agriculture is facing dramatic changes that are likely to have marked impacts on farmland biodiversity. There is an urgent need to develop la...
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 moreObservations were made in southern England in 1970-71 on aphid populations infesting the aerial shoots of spring cereals. Aphids mainly Acyrthosiphon ...
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 cereal aphid outbreaks of 1979 (Metopolophium dirhodum) and 1980 (Sitobion avenae) and their lower populations in 1981, in Norfolk, eastern Englan...
Read moreOver 85% of the world population of pink-footed geese (Anser brachyrhynchus) winter in Britain and throughout their winter range they use crops vulner...
Read moreThere are many arthropod species on farmland that are not economic pests but which have an important role in the wider ecology of agricultural ecosyst...
Read moreThe effects of climate change on the natural environment have been the subject of many studies in recent decades. However, there has been little resea...
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