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The conservation of natural habitats requires an accurate assessment of both their degradation and their potential for restoration. Among the tools av...

The uptake patterns of cadmium and copper by Aphis fabae from its food plant, Vicia faba, grown under control and elevated metal treatments, were comp...

Life tables are presented for 4 consecutive generations of Psila rosae on carrots in southern England, and are analysed using key factor analysis. Of ...

In laboratory experiments, oviposition by females of Oscinella frit at high population densities was negligible on single-leaved seedlings of ryegrass...

The following is virtually the author's summary. Observations in southern England in 1964-67 showed that the period when most of the Hymenopterous par...

Modified versions of the classic disease/host differential equation models were applied to rates of harvesting, sterilization and vaccination required...

Criteria for selecting sites are described and the various sampling, rearing and identification techniques used to investigate field populations of Si...

The colonization of clean (apparently uninfected), dead salmonid fish by Saprolegniaceae was studied both in the laboratory and in Windermere. Coloniz...

There is a linear relationship between the timing of the spring migration of both Sitobion avenae and S. fragariae and latitude, due to the effect of ...

The abundance and species richness of butterflies [Rhopalocera] on expanded-width uncropped arable field edges, which were subject to 10 contrasting, ...