Application of radio tracking to the survey of wild populations of vertebrates species (Mammals, Birds, Fishes) in Belgium

The authors are mainly concerned with behavioral ecology and wildlife animals. The activity of the laboratory was mainly focused on: - a wild mustelid, stone marten (Martes foina), in a suburban environment; - a large game mammal, the wild boar (Sus scrofa) in order to collect basic information needed in management operations; - the red fox (Vulpes vulpes) ecology in order to compare the behavior of normal and rabid animal; -an endangered bird species (black grouse, Tetrao tetrix tetrix) and his pattern of land (heather) use after a fire. All tracking studies were conducted in wooded areas of the sourthern part of Belgium (Wallonia) from 1976 to 1984. These results are discussed in relation to factors modulating time and space utilization. Recently, our laboratory has been developping research programs on eco-ethology and habitat partitioning of freshwater fishes in the River Meuse basin. First results of a feasibility study of tracking experiments on the barbel (Barbus barbus, Cyprinidea) are also presented.