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The grey partridge is a species of conservation concern, in common with many farmland birds. Its widespread decline in western Europe has been attribu...
Read moreThe increased deposition of nitrogen (N) from the atmosphere over the last century has been associated in Europe with changes in species composition, ...
Read moreThe following is virtually the authors' summary. About 1, 000 kg English wheat was stored, in two equal bulks, in a damp unheated brick building in so...
Read moreThe weed vegetation and seed bank were studied at the initiation (1979) and after the first cycle (1983) of a 4-course crop rotation (oats, clover [Tr...
Read moreAnnual determinations were made of the numbers of viable weed seeds in the soil on plots of a 9-year experiment with vegetable crops in which 4 primar...
Read more1. In order to realize the full potential of natural enemies in integrated pest management, it is necessary to understand their population dynamics, p...
Read more1. Functional and numerical responses are key components in the selection of predators for biological control. We examined the relevance of these resp...
Read moreField studies were conducted in New Brunswick, Canada, to evaluate the relationship between larval density of Zeiraphera canadensis and damage to curr...
Read more1. Crop damage caused by pest bird species is an economic problem in agricultural areas world-wide. Previous research in North America has focused on ...
Read more1. Fields left fallow after harvest (i.e. stubble fields) support high wintering densities of many species of granivorous bird. We examined correlates...
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