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Interest in the biology of African 'wetlands' was initiated in the last century with the hypothesis that Lake Tanganyika was once part of a Jurassic sea, and was furthered by Cunnington's expedition at the beginning of this century which proved that it was not. In the late 1920's, ecological studies, encouraged by the growing importance of inland fisheries, were started hy British, French and Belgian biologists. Some twenty years later several government limnological research centres and fishery departments were established in tropical Africa, and scientific progress was accelerated. Scientific collaboration between the regions south of the Sahara was started formally in 1951 by the Scientif...
The impetus for this volume was the 2nd International Wetlands Conference which was held in June, 1984 at Trebon, Czechoslovakia. An overview of the worlds wetlands was one of the themes of the conference and it was decided that a useful follow-up would be a publication on the same topic. The initial goal was to cover as many of the worlds wetlands as possible in one volume and to have an emphasis on wetland ecology, biota, classification, and management. Individuals who made presentations at the Trebon confer ence were asked to prepare chapters and the editors also solicited other contributions. For a variety of reasons, the initial goal has been difficult to reach, especially coverage of t...
A synthesis of tropical freshwater systems which illustrates the basic theory of freshwater biology.
Limnology - the study of inland waters - had its genesis in Europe about the turn of the century. The studies of Fore1 on Lake Geneva were of seminal value at this time. It prospered under the early guidance of Thienemann, Naumann and Wesenberg-Lund in Europe and, soon transplanted, of Birge and Juday in North America (to name just a few early spirits). Now, liminology is a respectable scientific discipline taught at many universities, and limnologists are recognized as important contributors to our understanding of how this fragile spaceship functions. All this acknowledged, it must also be acknowledged that limnology is not yet a globally comprehensive science. To be sure, much is known about globally applicable processes, and the structural elements of aquatic ecosystems worldwide, but limnological emphases, interests and concerns remain essentially European and North American in balance. Much is known about lakes and rivers in less than one fifth of the world's land area (northern temperature regions); rather little is known about inland waters elsewhere.
Life in Ancient Ice presents an unparalleled overview of current research into microbial life in ancient glacial ice and permafrost. Particulates of fungi, bacteria, pollen grains, protists, and viruses are carried by wind around the globe. When they fall to Earth in polar regions they may be trapped in ice for hundreds of millennia. Some of the many implications sound like science fiction--for example, might melting glaciers release ancient pathogens that yield modern-day pandemics? But rigorous, coordinated research is nascent. This book points the way forward. Based on a National Science Foundation-sponsored symposium organized by the editors in 2001, it comprises twenty chapters by inter...
How were the dead remembered in early medieval Britain? Originally published in 2006, this innovative study demonstrates how perceptions of the past and the dead, and hence social identities, were constructed through mortuary practices and commemoration between c. 400-1100 AD. Drawing on archaeological evidence from across Britain, including archaeological discoveries, Howard Williams presents a fresh interpretation of the significance of portable artefacts, the body, structures, monuments and landscapes in early medieval mortuary practices. He argues that materials and spaces were used in ritual performances that served as 'technologies of remembrance', practices that created shared 'social' memories intended to link past, present and future. Through the deployment of material culture, early medieval societies were therefore selectively remembering and forgetting their ancestors and their history. Throwing light on an important aspect of medieval society, this book is essential reading for archaeologists and historians with an interest in the early medieval period.
Limnological research on saline lakes is practiced by a growing cadre of scientists active worldwide in a diversity of disciplines. Every three years since 1979, an international symposium on inland saline waters has served to strengthen and expand the scope of the studies. Promising areas for further research especially well suited to saline lakes include the comparative physiology of adaptation to osmotic stresses, the role of microbial and protozoan communities in nutrient dynamics and biotic interactions in ecosystems with few species. The Third International Symposium on Inland Saline Lakes was held at the University of Nairobi, Nairobi, Kenya, under the auspices of the Societas Interna...