Objective Introduced species often become pests, causing damage to agriculture or forestry, and/or the extinction of native species. In Britain and parts of North-Italy, the introduced American grey squirrel replaced the native red squirrel. The process of this replacement is still unknown. By comparing the behaviour and reproduction between two control areas (only red squirrels) and two experimental areas (red and grey squirrels), two hypotheses will be tested. I expect grey squirrels to compete with red squirrels for food resources and to kill their young in the nest. I therefore predict: that red squirrels will spent less time foraging, eat fewer energy-rich tree seeds, and spent more time interacting in the Experimental areas (hypothesis l); and that in the presence of greys, a smaller proportion of female red squirrels will wean offspring (hypothesis 2). The incidence of diseases will also be examined and compared between control and experimental areas. Fields of science agricultural sciencesagriculture, forestry, and fisheriesagricultureagricultural sciencesagriculture, forestry, and fisheriesforestry Programme(s) FP4-TMR - Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998 Topic(s) 0302 - Post-doctoral research training grants TL15 - Population Sciences (inc.Ecology, Evolutionary Sc., Biodiversity & Conserva.) Call for proposal Data not available Funding Scheme RGI - Research grants (individual fellowships) Coordinator QUEEN MARY AND WESTFIELD COLLEGE - UNIVERSITY OF LONDON EU contribution No data Address Mile End road E1 4NS London United Kingdom See on map Total cost No data Participants (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all Not available Belgium EU contribution No data Address See on map Total cost No data