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The breeding of red-winged blackbirds (Agelaius phoeniceus) was used in 4 flood-irrigated hay meadows in Wyoming as a model to study the effects of a ...

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

Flashing lights can work as an effective visual deterrent to protect livestock in kraals at night against wild carnivores.

Dieldrin was banned from use in sheep dips in January 1966. The proportion of golden eagle eyries in western Scotland that produced young increased fr...

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...

The following is virtually the authors' conclusion and summary. The proportion of eyries of the golden eagle (Aqutta chrysaetos) in western Scotland i...

The phenology and growth chracteristics of U. dioica are considered in relation to the successful exploitation of the plant in E. Anglia by several He...

In investigations in New Zealand, percentage estimates of the total mortality of Pieris rapae (L.) due to ground-living arthropod predators obtained b...

The temperature requirements of five aphid species (Acyrthosiphon pisum (Harris), Aphis craccivora Koch, Brevicoryne brassicae(L.). Macrosiphum avenae...

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