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The populations of Operophtera brumata (L.) on 8 cider apple trees of 4 cultivars were monitored from October 1972 until May 1975 in Western England. ...

Relative growth rate, mortality and stem form in individual trees in mixed stands of P. radiata (planted in 1975 on a former native forest land) and n...

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

Experiments were conducted (1) to determine whether resistance to MCPA would subside in a population of Ranunculus acris subsp. acris after ending a 3...

The effects of defoliation of the malvaceous tropical weed Sida acuta by an introduced biological control agent, the chrysomelid Calligrapha pantherin...

The numbers of Sinapis arvensis plants in 3 permanent quadrats in an arable field were examined over 3 years. Plant size was positively correlated wit...

Recent reforms in the Common Agricultural Policy aim for a greening of the subsidy system with potential improvements for biodiversity conservation. A...

The distribution and abundance of animals are influenced by factors at both local and wider landscape scales. Natural enemies of pests in arable field...

Seed predation can cause substantial losses of newly produced weed seeds and can therefore be important in regulating weed densities. The impact on we...

Resource competition is an important process governing the impact of livestock on native wild mammalian herbivores, an issue acknowledged to be of glo...