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Diversification of fisheries and agroecosystems can increase and stabilize production and revenue, despite unpredictable changes in ecosystems and mar...
Read moreIn connexion with studies of insect pests and vectors of disease in Cocoa plantations, an investigation was made of the fungus pathogens of ants and o...
Read moreThe following is substantially the authors' summary. To provide means of predicting with precision the duration of the puparial stage of Glossina mors...
Read moreLeaf expansion was investigated in 10 ecotypes of Lolium perenne and 7 of Dactylis glomerata. Seasonal sowings revealed a regular cline in relative ra...
Read moreThe dry-weight increment of A. pseudoplatanus seedlings, initially 60-90 cm. high, was measured by growth analysis. Seedlings were planted out 90 cm. ...
Read moreEstimates of water used by irrigated cotton crops, obtained by micrometeorological methods, soil water sampling and lysimetry, were related to Penman'...
Read moreData on the weight and nutrient status of litter from four species of exotic conifer (Pinus lambertiana, P. nigra var. maritima, P. ponderosa and Pseu...
Read moreRoots collected from 3 contrasting types of permanent grassland in the Pennines were consistently infected by vesicular-arbuscular (VA) mycorrhizal fu...
Read moreAccurate predictions of the abundance of migrating birds are important to avoid aerial conflicts of birds, for example, with aviation or wind power in...
Read moreThe population dynamics of B. globosus were studied at 5 river sites in the Zimbabwe highveld for between 4 and 28 months. Adult snail abundance, recr...
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