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Two cultivars of barley, one resistant and one susceptible to aphids, were grown in pots in mono- or mixed culture in the laboratory, and either infes...
Read moreThe effects of cutting calcareous grassland on its invertebrate fauna were examined in an Arrhenatherum-dominated grass plot in eastern England. Four ...
Read moreIn a cider-apple orchard near Bristol, England, in late January 1972 (Experiment 1) and December 1972 (Experiment 2), fully grown larvae of Cydia pomo...
Read moreA layer of polystyrene beads on the surface of sand in sand-culture experiments greatly reduced evaporation, prevented surface salt-accumulation, inhi...
Read moreSea-salt deposition was measured under the windward and leeward side of trees of Pinus radiata D. Don growing near the coast of west Wales. Deposition...
Read moreBecause cyst-nematode populations are relatively static, immigration and emigration are negligible and population fluctuations under different crops c...
Read moreApprox. 15 000 ha of mixed coniferous forest were burned on the northern California/Nevada border during the Donner Ridge fire in 1960. Vegetation was...
Read morePopulation densities of Heterodera avenae in a sandy soil in Nottinghamshire, UK, decreased to very low levels between 1957 and 1968, despite intensiv...
Read moreThe dispersion, biomass and population structure of the semi-desert shrub Zygophyllum eurypterum were measured in a 1-ha sample of the Turan Biosphere...
Read moreCarduus nutans spp. nutans was introduced into Australia in 1950, since when it has spread into several agricultural areas. Models were developed to d...
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