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Salt marsh habitats support about 50% of the population of redshank breeding in Britain. Between 1985 and 1996, breeding densities declined by 23%. Th...

A new technique is described which can be used to separate the effects of root and shoot interactions between spp. or populations. The technique allow...

1. Intercropping, the practice of growing two or more crops in close association, is attracting increasing interest in developed countries, primarily ...

When Callosobruchus maculatus (F.) was provided with the seeds of several varieties of cowpea (Vigna unguiculata) in the laboratory in the UK and was ...

Glossina control operations are more likely to succeed if timed to exploit periods of natural vulnerability. One measure of a population's condition i...

Climate and soil factors influencing the distribution of annual legume species collected at 207 sites throughout Syria were investigated by cluster an...

The enchytraeid populations of soil samples were recorded for 4 yr in a newly felled area and untreated control area (Sept. 1975-79) and for 2 yr (197...

The negative impact of large carnivore presence in human-dominated landscapes manifests as livestock depredation and in extreme cases as attacks on hu...

Population densities of Heterodera avenae in a sandy soil in Nottinghamshire, UK, decreased to very low levels between 1957 and 1968, despite intensiv...

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