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Field feeding by mallard ducks was not random; fodder barley and stubble fields were preferred and standing oat crops were avoided. Ducks were attract...
Read moreThe goal of this research was to identify indigenous tree species with a positive influence on soil fertility, in order to design mixed-tree and tree/...
Read moreGrazing can significantly impact spatial heterogeneity and conservation value of ecosystems. Earlier work revealed that overgrazing may stimulate pers...
Read moreHawthorn scrub in an upland area (>150 m alt.) of North Wales was surveyed, and at three typical study sites, hawthorn occurrence was studied in re...
Read moreForest mortality related to climate change is an increasingly common global phenomenon. We provide a case study of the U.S. Southwest to investigate t...
Read moreGives the results of a detailed survey, between 1968 amd 1971, of the distribution, density and concentration of populations of Juniperus communis sub...
Read morePostfire salvage logging is the most commonly applied forestry practice in burned forests world-wide, mainly for economic reasons. However, it strongl...
Read moreSee also Abs. 804. A series of glasshouse, growth room and field experiments were designed to study interference between perennial ryegrass [Lolium pe...
Read moreAmmonium-oxidizing bacteria (Nitrosolobus sp.) were counted every 2 days for 28 days in the top 5 cm of a soil at Rothamsted. The population density f...
Read moreIceland has vast areas of mobile sand resulting from volcanic glacier bursts and erosion. Seeds of the coastal, dune-building grass Leymus arenarius a...
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