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To determine the status of a watercourse (whether or not to be managed by the waterboard), the Dutch waterboard Vechstromen applied a method where the...
Read moreThe severe and ongoing decline in semi-natural grassland habitat during the past two centuries means that it is important to consider how other, margi...
Read moreData on fecundity and mortality obtained from wild rabbit (Oryctolagus cuniculus) populations in England were used in Leslie Matrix population project...
Read moreAn analysis of predation of cereal aphids (Sitobion avenae and Metopolophium dirhodum) by larvae of Episyrphus balteatus is described. Field data on t...
Read moreThere is a linear relationship between the timing of the spring migration of both Sitobion avenae and S. fragariae and latitude, due to the effect of ...
Read moreAn implant of 30-35 mg of Aroclor 1254 was inserted beneath the skin of 108 wild puffins (Fratercula arctica). Although the concentration of PCB was i...
Read moreA description is given of apparatus used for measuring photosynthesis and respiration in C. vulgaris under controlled conditions of light intensity, r...
Read moreApplications of ammonium nitrate (NH4NO3) to cores of Sphagnum magellanicumin situ at 2-week intervals for 20 weeks from mid-June at a raised mire in ...
Read moreBiological control is a key ecosystem service in arable lands, but its effectiveness varies according to environmental and biotic contexts. Cascading ...
Read moreThe ecology of the Chondrilla genus in the eastern Mediterranean region is described and compared with that in the western Mediterranean region. The b...
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