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Perennial ryegrass swards were continuously grazed by sheep. One sward was grazed to maintain an LAI (lamina) close to 1.0 ('hard' grazed) and a 2nd s...
Read moreThe relative importance to hares of pasture fields, with and without farm livestock, was assessed on a mixed farm of cereals and grass in Hampshire, S...
Read moreOrganochlorine levels and shell thickness indices varied little between eggs in the same clutch of Accipiter nisus in the UK, but they varied greatly ...
Read moreSexual reproduction and natural seed production in Eichhornia crassipes was examined in a total of 19 populations from 2 tropical regions (Lower Amazo...
Read moreThe following is based largely on the authors' summary. Some of the factors that contribute to changes in the biting rate of L. becquaerti with time (...
Read moreThe following is substantially the author's summary of this account of further studies in Kenya [cf. RAE A 57 1599]. The distribution of eggs laid by ...
Read moreThe 34 papers have lists of references and summaries in English, French and German, and cover many aspects of the subject in NATO countries. Danger to...
Read moreThe redistribution of species in response to climate change is expected to significantly challenge environmental management and conservation efforts a...
Read moreA comparison of the vegetation and soil was made around 2 boreholes, differing in cattle density and exploitation period, in the dry savanna of E. Bot...
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