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When Callosobruchus maculatus (F.) was provided with the seeds of several varieties of cowpea (Vigna unguiculata) in the laboratory in the UK and was ...
Read moreMathematical models for birth and death processes in local populations (within a local patch), and for migration between local patches in a heterogene...
Read moreThe influence of trampling was studied on the outer dune heath of Skallingen, southwest Jutland. The total number of passages and the period of time o...
Read moreSoil characteristics and vegetation were studied in vehicle tracks and adjacent undisturbed tundra along local moisture gradients at four sites in nor...
Read moreEnclosures (4.5 m3) in a dense Potamogeton pectinatus community were enriched by weekly additions of NaNO3 and KH2PO4 at four rates (max. 1000 mu g N ...
Read moreA model of a 2 life-stage pest species is presented for determining the feasibility of control by means of predator release, habitat management and pe...
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 moreWhere competition studies are based on binary mixtures, data can be clearly displayed by plotting the yield per unit area of one component against tha...
Read moreField and greenhouse studies showed that maintenance of a few centimeters water depth, compared with complete drawdown from a falling water table, wil...
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