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Populations were collected from twelve sites in Switzerland and Italy. Tetraploids occurred in grassland at high altitudes but in woodlands down to 11...
Read moreThere have been air pollution problems in Britain for several centuries. The nature of such problems has changed: intense local smoke pollution has be...
Read morePost-war agriculture in Britain and the EEC, facilitated by new technology and state support, has been very successful in increasing food supplies to ...
Read moreConservation in the United Kingdom is divided between government organizations, and non-government organizations. Four areas of achievement are descri...
Read moreIn Britain, man's alteration to river habitats began with forest clearances and continued with developments for water power and navigation. Industrial...
Read moreA 3-parameter probabilistic model provided a good fit to data relating seed set to the number of florets on red clover inflorescences visited by bumbl...
Read moreA study was made in the Northern Province, during Aug. and Oct. 1968, of the suitability of miombo woodland (Brachystegia/Julbernardia) for cattle rea...
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 moreSolitary bees have experienced a decline in both diversity and abundance over the past decade. Although their foraging requirements have been the subj...
Read moreA replicated, controlled study in 2011-2012 found that using home-made fish traps reduced the capture of unwanted, small shannies Lipophrys pholis com...
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