This volume is the result of a Symposium, held in October, 1985, to celebrate the Silver Jubilee of the De- partment of Plant Ecology of the University of Groningen. The Department of Plant Ecology was founded by Professor Dingeman Bakker and has, since its incep- tion, been involved with studies of grasslands, and especially with the effects of human interference on grassland communities. It has been especially involved in an almost unique enterprise to convert areas of grassland from intensive agricultural production to nature reserves. With over-production of most food commodities in the...

A compilation of most of the seminars presented during a symposium held in Arnhem, the Netherlands. The introduction treats not only the Netherlands as wetland in a larger landscape but also the various wetland types within the country itself. The subsequent case studies concern representative wetland types. Both introduction and case studies give an historical, hydrological, physicochemical and biotic characterization of the wetland concerned, as well as a description of management measures in the past and in the present; summarize the threats to the systems; and indicate prospects for the...

Subtitled: On the ecological significance of grazing and cutting regimes applied to restore former species-rich grassland communities in the Netherlands . Reports on part of a 15-year research program on grasslands (including salt marshes) carried out by the U. of Groningen, in which systematic and

Number of pools (%) o 10 20 40 A moorland pool (Dutch: ven, fies, fiaas; Ger- co man: Heidetlimpel; French: etang de bruyere) is :S 2- pools present in the Pleistocene areas of The (f) Netherlands, particularly in the northern province Fig. 2. Size distribution of 346 moorland pools in Noord- of Drenthe and the southern province of Noord- Brabant (after A. W. M. Mol, unpubl. ). Brabant (Fig. 1) The size of a typical moorland pool is between 0. 5 and 1. 5 ha, but many smaller and larger pools After the formation of the pools the open water exist (Fig. 2). The maximum size is 75 ha. The was...

This volume is the result of a Symposium, held in October, 1985, to celebrate the Silver Jubilee of the De- partment of Plant Ecology of the University of Groningen. The Department of Plant Ecology was founded by Professor Dingeman Bakker and has, since its incep- tion, been involved with studies of grasslands, and especially with the effects of human interference on grassland communities. It has been especially involved in an almost unique enterprise to convert areas of grassland from intensive agricultural production to nature reserves. With over-production of most food commodities in the...