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This study employs the resurrection method to investigate contemporary evolution in 2 natural populations of the arable weed Centaurium erythraea. By ...
Read moreMeasurements were made during the winter of 1977/78 at the Welsh Plant Breeding Station of changes of leaf, stolon and root biomass, stolon length and...
Read moreThis paper presents the results of a study conducted to determine the physical-water attributes in the surface layer of the soil as quality indicators...
Read moreFor Kenya, maps of annual water availability indices, representing the mean total precipitation available for transpiration as a percentage of the ann...
Read moreThis special profile contains an editorial and 13 papers demonstrating the potential of European agri-environment schemes (AESs) to achieve significan...
Read moreThis report examines the evidence base concerning agricultural ponds and the opportunities they offer for enhancing biodiversity and potential carbon ...
Read moreOn the Dry plot, rain was prevented from entering the soil; on the Irrigated plot, the soil was kept near field capacity by irrigation; the Normal plo...
Read moreNitrate, ammonium, and phosphate were added to the forest floor of an alluvial swamp at a weekly rate of 1 g of nitrogen or phosphorus per m2 for near...
Read moreThe population dynamics of the annual weed Emex australis are described for 3 sites in south-eastern Australia. A graphical test showed a random spati...
Read moreMean adult bee populations were 18 000 in late May, 37 000 in early June and 13 000 in late September, while mean brood populations were 15 000 in lat...
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