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The nesting success of the sparrowhawk (Accipiter nisus) in and near arable areas in Britain has declined since 1947, owing to increased egg-breakage ...
Read moreThe following is based on the authors summary of this account of investigations on the changes in the soil arthropod fauna of an area of dry grassland...
Read moreIn studies on organochlorine residues in lakes of the Rift Valley, Kenya, 47% of the farms surveyed in the Nakuru catchment basin used either DDT or d...
Read moreThe following is substantially the author's summary. During the years 1963-70, further progress was made in eradicating tsetse flies (Glossina tachino...
Read moreThe following is substantially the authors' summary. Outbreaks of Ectropis bhurmitra (Wlk.) in Ceylon in 1963-66 developed as a side-effect of dieldri...
Read moreThe following is virtually the author's summary. Since 1950, egg breakage has occurred with unprecedented frequency in the nests of peregrines (Falco ...
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