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The protection of sensitive species from overfishing is a key aspect of the ecosystem approach to fisheries management. We use life-history parameters...
Read moreDespite the crucial importance of biotic pollination for many crops, land managers rarely monitor the levels of crop pollination needed to guide farmi...
Read moreInvertebrates from contaminated and semi-contaminated grasslands in the vicinity of a major copper refinery housing copper/cadmium alloying plant all ...
Read moreGrowth characteristics and response to atrazine were studied in atrazine resistant (R) and susceptible (S) populations of Amaranthus retroflexus and A...
Read moreMorocco is a semiarid country in the Mediterranean facing water scarcity and deteriorating water quality. Its limited water resources constrain the ac...
Read moreIn November 1970 the acidity of Calthorpe broad in Norfolk, and some adjacent ditches, changed abruptly from near-neutrality to just above pH 3. Most ...
Read moreThe following is based largely on the author's summary. During investigations in Britain in 1968 on the effect of weed control on the incidence of Pie...
Read moreThis paper addresses the question of how a new set of scenarios that respond to these needs can be developed. It outlines the systematic steps to deve...
Read moreEvaluative and impact assessment studies document how the results obtained by RTB, its implementing centers and partners, contribute to the achievemen...
Read morePopulation data on Sitona discoideus collected from young lucerne in Canterbury, New Zealand, in 1982-86 were analysed using life tables. Manipulated ...
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