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This book was composed in honour of Dr. Ir. W. G. Beeftink to commemorate his retirement as a plant ecologist at the Delta Institute for H ydrobiological Research, Yerseke, The Netherlands. The editors' main aim has been to collect scientific papers of Wim Beeftink's friends and colleagues. The title of the book: 'Vegetation between land and sea. Structure and processes' was originally proposed by Prof. Dr. W. H. O. Ernst. It was amended by Prof. Dr. J. J. Barkman. In our judgement it reflects the best attempt to cover the numerous and divergent contributions under one heading. Not all papers however fit the "field" covered by the title, and we use this word both literally and metaphorically...
British Plant Communities is the first systematic and comprehensive account of the vegetation types of this country. It covers all natural, semi-natural and major artificial habitats in Great Britain (but not Northern Ireland), representing the fruits of fifteen years of research by leading plant ecologists. The book breaks new ground in wedding the rigorous interest in the classification of plant communities that has characterised Continental phytosociology with the deep concern traditional in Great Britain to understand how vegetation works.
This preface is being written at a time of exceptional public interest in the North Sea, following media head lines on toxic algal blooms, the mass mortality of common seals, and concern over pollution levels. These headlines may suggest that pollution of the North Sea is a recent event. This is not the case. Although no data are available (methods simply did not exist), it is safe to assume that emission (both into air and water) of heavy metals already started to increase in the 19th cen tury. The growth of cities and introduction of sewer sys tems led to the discharge of raw sewage and sewage sludge. The introduction of man-made (xenobiotic) organ ic chemicals and their subsequent emissio...
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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 EEC, and increasing interest in various types of 'set aside' schemes, this initiative now seems to be re...
This original volume draws on the author's own research experiences in Ireland, Britain, France, Canada, and the United States to present a guide of coastal environments for applications of shoreline and environmental management. Topics include: long-term development of coasts, water supply and waste disposal, energy resources and coastal water management, coastal water management for recreation, coastal management of storm hazards, and managing world sea-level rise.
Coastal Conservation and Management provides the reader with a synthesis of the range and variation of the main coastal formations and includes practical guidance on their management. The book discusses all the main coastal habitats of importance for nature conservation (saltmarsh, shingle, sand dune and seacliff) as well as combinations of these habitats (estuaries and other coastal wetlands). It offers a comprehensive picture of both the soft sedimentary formations and those which are more resilient. While these habitats have all been covered elsewhere in the literature, no single volume gives such a wide-ranging account. An attempt is made throughout to provide the reader with a basic understanding of the importance and range of variation of each habitat and coastal ecosystem. The principal issues are discussed and the key management options identified. Some prescriptive suggestions are made, though for the most part, the reader is left to ponder the issues and their possible solutions.
(RANKIN) of equivocation information (1-:) and interaction information (M). The method is described in the present paper for I: and in a previous paper (Orloci, 1976) for M. The results presented in this paper suggest that for Species Rank order Information Percentage of total* species to be weighted according to their suitability to I· M I M r M characterize isolated groups of releves in a phytosociolo 5 7 54.15 2.31 17.97 0.82 gical table, the equivocation information may serve as a 9 5 49.86 23.19 16.55 8.22 3 3 9 47.79 0.56 15.86 0.20 suitable weight. The appropriate formulations are derived 6 4 8 36.18 1.18 12.01 0.42 4 5 3 24.36 59.34 8.09 21.03 and computed for some data from a salt marsh community. 8 6 4 24.25 39.04 8.05 13.84 10 7 I 21.96 71.17 7.29 25.23 7 8 2 18.67 69.01 6.20 24.46 9 10 18.40 6.11 10 6 5.64 16.31 1.87 5.78 References Total 301.00* 282.11 * 100.00 100.00 Feoli, E. 1973. An index for weighing characters in monothetic classifications. (Italian with English summary). Giorn. Bot. Ita!' 107: 263-268. Gower, J.e. 1967. A comparison of some methods of cluster is a monotone, increasing function of sample size if .. ).
A broad introduction to the ecology of the unique environment of the saltmarsh.