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Ecological systems are prone to disturbances and perturbations. For stage-structured populations, communities and ecosystems, measurements of system m...
Read moreThis report discusses a project which aims to develop a Population Viability Analysis (PVA) modelling framework, applicable to seabirds at a variety o...
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 moreThe populations of Operophtera brumata (L.) on 8 cider apple trees of 4 cultivars were monitored from October 1972 until May 1975 in Western England. ...
Read moreDipterous stem-boring larval populations were assessed in rotationally grazed or cut plots of ryegrass [Lolium perenne] in southern England throughout...
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 moreThe nets used in bottom trawl fisheries cause mortality of benthic invertebrates and this can decrease the long-term availability of prey to exploited...
Read moreThe reasons for choosing a stochastic spatial simulation model of urban fox dispersal are described, and the biological assumptions behind the constru...
Read moreThe weed seed populations built up in the top 6 in. of soil in land on which vegetable crops have been grown for long periods, was estimated from soil...
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