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The contents of pollen traps on two hives in Midlothian, Scotland, were analysed for 3 seasons, and in the 4th season the study was extended to 4 hive...
Read moreSampling of earthworm populations during 5- and 15-yr-old cropping phases and in 5-, 10- and 15-yr-old fallow phases of shifting agriculture at Shillo...
Read moreDensity of jojoba (Simmondsia chinensis) was similar but plant size and cover were greater inside than outside a 48-yr-old livestock (cattle) exclosur...
Read moreMonthly totals of arthropods found killed by pathogenic fungi in collections from 5 X 4 quadrats in three forest types in Ghana were shown to be inver...
Read moreAdults of Hylemya (Erioischia) brassicae (Bch.) labelled with 32P were released 24 m from a plot of cabbage and recaptured with water traps. The respo...
Read moreThe nesting success of the sparrowhawk (Accipiter nisus) in and near arable areas in Britain has declined since 1947, owing to increased egg-breakage ...
Read moreManagers must understand the effects of stressors on ecosystems in order to identify thresholds of harm but, to be meaningful, thresholds will usually...
Read moreData on changes in numbers of 31 species of butterfly in the UK in 1976-86 were used to investigate associations between relative abundance and weathe...
Read moreA model for the growth and development of cassava under pest-free conditions, as modified by weather, soil nitrogen and water, is described. The model...
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