Bernard Dell – författare

This is a comprehensive review of knowledge of boron in soils, plants and animals, which coincides with a period of significant progress in boron research. It covers mid-1990s advances in the identification of the physical and chemical role of boron in the cell wall, the characterization of the genetic basis for differences in boron accumulation and tolerance to boron excesses and deficiencies, and the identification and characterization of the mechanizations of phloem boron transport. Each of these advances has contributed not only to an understanding of the fundamental behaviour of boron in plants, but also has a direct impact on boron management in agricultural systems. There are 13 review papers written by international scientists. The book should be of interest to scientists and advisers responsible for ensuring that plant growth is not limited by boron deficiency or toxicity, and it may be used as a reference book for students in agriculture, forestry, soil sciences and animal and human health.

The Western Australian jarrah forest is unique, contammg some of the most beautiful flora in the world, more than 100 species of birds and some 50 mammals indigenous to this State. This book "The Jarrah Forest - A Complex Mediterranean Ecosystem" is a collection of scholarly essays on every known aspect of the northern part of the jarrah forest extending from south of Collie to the Avon River. All of the work has been researched by members of tertiary institutions, the private sector and government instrumentalities and was prepared expressly for this book. In the list of contributors are the names of many Western Australians who are in the forefront of their particular field. The book will be a very important reference work for senior secondary schools and tertiary institutions in Western Australia for many years to come. Additionally, it will have wide appeal to all interested in forestry management, both in Australia and overseas. I should like to express my appreciation for the efforts of all those involved in the conception and planning of this most valuable book. Perth, August 1988 Peter Dowding LL.B. M.L.A.

This volume contains the texts of invited papers presented at the Fourth International Conference on Mediterranean Ecosystems (MEDECOS) held in Perth, Western Australia during August 1984. It thus follows three previous meetings, Chile (1971), California (1977) and South Africa (1980). There has been no formal international body to organize these meetings, merely a continuity of purpose provided by the common interests of the scientists concerned in the English-speaking world. Following previous themes on structure, fire and role of nutrients in mediterranean ecosystems, MEDECOS was structured around the theme ''Resilience in Mediterranean Ecosystems''. The invited speakers were requested to deal with particu­ lar aspects of this subject, and offered papers were encouraged to do so as well. This provided a broad framework for discussions which at the same time highlighted many of the major conservation issues arising from extreme natural events and human-induced disturbances in the mediterranean regions. The proceed­ ings were issued on the last day of the conference and provided two-page accounts of each of the contributed papers and posters (Dell, B. (ed. ) 1984 Proceedings of the 4th International Conference on Mediterranean Ecosystems. Botany Dept. , University of Western Australia). This volume was reserved for the review papers whose aim was to explore general principles and unifying concepts at all levels in the study of resilience. Perth, December 1985. VII List of contributors B. Dell 1. E.