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The effect of different intensities of winter grazing by barnacle geese, Branta leucopsis, on the yields of agricultural grasslands dominated by Loliu...
Read moreChanges in density of sown E. lehmanniana and native grasses (dominated by Digitaria californica, Bouteloua curtipendula, B. eriopoda, Muhlenbergia po...
Read moreVegetation change during the first 6 years of secondary succession in a calcareous former arable field and the effect of controlled grazing by sheep w...
Read moreInvasive freshwater aquatic plants can have adverse ecological effects on the systems to which they are introduced, changing ecosystem function, threa...
Read moreThis study describes a modified mowing regime that allowed green-winged orchids Anacamptis morio, discovered in 1985 on coastal grassland on a rifle r...
Read moreThe input and output of water, Na, K, Ca, P and N were measured over a 14 month period in a 45 m2 watercress bed containing 6927 kg of a soil/gravel m...
Read moreIn the above area it is common practice to grow sorghum and other crops under trees of A. albida, which is leafless during the rainy season. Crop yiel...
Read moreThe ability of indigenous soil protozoa to survive and multiply after exposure to various concentrations of fenpropimorph was investigated. The averag...
Read moreGives the results of a detailed survey, between 1968 amd 1971, of the distribution, density and concentration of populations of Juniperus communis sub...
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