Antarctic Nutrient Cycles And Food Webs

Author : W.R. Siegfried,P.R. Condy,R.M. Laws
Publisher : Springer Science & Business Media
Page : 702 pages
File Size : 55,5 Mb
Release : 2013-06-29
Category : Science
ISBN : 9783642822759

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Antarctic Nutrient Cycles and Food Webs by W.R. Siegfried,P.R. Condy,R.M. Laws Pdf

It is a pleasure and a distinct honour for me to greet the participants, guests and ob servers of this Fourth International Symposium on Antarctic Biology which has adopted nutrient cycles and food webs as its central theme. On behalf of the Scientific Committee on Antarctic Research (SCAR) and other bodies of the International Council of Scientific Unions (ICSU), I bid you welcome. SCAR is pleased to acknowledge the role of the co-sponsors for this Symposium which include the Scientific Committee on Oceanic Research (SCOR), the Interna tional Association of Biological Oceanography (IABO), and the International Union of Biological Sciences (IUBS). In addition, SCAR and its co-sponsors wish to acknowledge the financial support of the Council for Scientific and Industrial Re search (CSIR) and the Department of Transport (DOT) of the South African govern ment. Nor should we forget to acknowledge also the role of the South African Scientific Committee on Antarctic Research (SASCAR) and one of its leaders and Vice President of SCAR, Mr. Jan de Wit, in arranging this charming venue for this Symposium.

Author : Donald L. DeAngelis
Publisher : Springer Science & Business Media
Page : 285 pages
File Size : 52,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401123426

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Dynamics of Nutrient Cycling and Food Webs by Donald L. DeAngelis Pdf

In all fields of science today, data are collected and theories are developed and published faster than scientists can keep up with, let alone thoroughly digest. In ecology the fact that practitioners tend to be divided between such subdisciplines as aquatic and terrestrial ecology, as well as between popula tion, community, and ecosystem ecology, makes it even harder for them to keep up with all relevant research. Ecologists specializing in one sub discipline are not always aware of progress in another subdiscipline that relates to their own. Syntheses are frequently needed that pull together large bodies of information and organize them in ways that makes them more coherent, and thus more understandable. I have tried to perform this task of integration for the subject area that encompasses the interrelationships between the dynamics of ecological food webs and the cycling of nutrients. I believe this area cuts across many of the subdisciplines of ecology and is pivotal to our progress in understanding ecosystems and in dealing with human impacts on the environment. Many current ecological problems involve human disturbances of both food webs and the nutrients that cycle through them. Little progress can be made towards elucidating the complex feedback relations inherent in the study of nutrient cycles in ecological systems without the tools of mathematics and computer modelling. These tools are therefore liberally used throughout the book.

Author : K.R. Kerry,G. Hempel
Publisher : Springer Science & Business Media
Page : 428 pages
File Size : 44,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642840746

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Antarctic Ecosystems by K.R. Kerry,G. Hempel Pdf

Antarctic Ecosystems comprises 55 papers presented at the Fifth Symposium on Antarctic Biology held under the auspices of the Scientific Committee on Antarctic Research (SCAR) in Hobart, Australia, 29 August - 3 September, 1988. Both short- and long-term changes in ecosystems and community structures caused by natural and human factors were discussed to help understand the ecological processes taking place in a changing environment. The variability of ecological factors must be known for the development of realistic monitoring strategies and sound conservation practices.

Author : Warwick F. Vincent
Publisher : Cambridge University Press
Page : 324 pages
File Size : 55,7 Mb
Release : 2004-03-11
Category : Nature
ISBN : 0521544130

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Microbial Ecosystems of Antarctica by Warwick F. Vincent Pdf

A structured account of the full range of environments in Antarctica and of the microbial communities that live within them. The author examines the major features of the chemical and physical environment in each habitat, and the influence of these features on the population structure and dynamics of their microbiota. Each chapter considers a specific type of environment, the microbial species that dominate, their community structure and dynamics, and the microbial processes that operate and have been measured in the ecosystem. The chapters conclude with an overview of the ecosystem trophic structure and an introduction to the larger organisms that depend on the microbiota. Separate chapters examine the range of cellular strategies adopted by microorganisms within the Antarctic environment, and the increasing influence of humans on these communities.

Author : Anonim
Publisher : Unknown
Page : 376 pages
File Size : 43,9 Mb
Release : 1992
Category : Antarctica
ISBN : MINN:30000003380130

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Antarctic Journal of the United States by Anonim Pdf

Author : Sayed Z. El-Sayed
Publisher : Cambridge University Press
Page : 448 pages
File Size : 54,8 Mb
Release : 1994-02-24
Category : Nature
ISBN : 0521443326

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Southern Ocean Ecology by Sayed Z. El-Sayed Pdf

BIOMASS (Biological Investigations of Marine Antarctic Systems and Stocks) was a unique, large-scale, long-term, international research programme established in 1977 to investigate the ecology of the Southern Ocean. Its main aim was to gain a greater understanding of the biological systems and stocks in the marine Antarctic environment, thereby providing a sound basis for the future management of the living resources within this immense ocean. The programme was drawn to a close in 1991 and its completion marked by a colloquium which brought together key researchers to summarise and review the results obtained. This volume, arising from that colloquium, provides a succinct, state-of-the-art account of the ecology of the Southern Ocean and serves as a comprehensive record of this unique and successful international project.

Author : Dietrich Sahrhage
Publisher : Springer Science & Business Media
Page : 310 pages
File Size : 47,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642737244

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Antarctic Ocean and Resources Variability by Dietrich Sahrhage Pdf

During the intensification of research activities in the Southern Ocean in recent years, both at national levels and through international cooperation in such projects as BIOMASS with its FIBEX and SIBEX phases, the need was felt increasingly for closer collaboration between biologists, meteorologists, and oceanographers in the study of the interaction between the atmospheric forces, the water masses, and the living resources. Better knowledge in this regard is not only of scientific interest but also of practical importance, especially for the management of the resources and the protection of the Antarctic marine ecosystem. As a follow-up on a recommendation by the IOC Program Group for the Southern Oceans made in March 1983, the Intergovernmental Oceanographic Commission organized a meeting of experts on oceanography related to the dynamics of the Antarctic ecosystems. During this meeting, held in Kiel, Federal Republic of Ger many, in May 1984, biologists and oceanographers involved in BIOMASS activities met with the oceanographers of SCOR Working Group 74 to discuss ways and means for additional physical and chemical observations in the oceanographic research within BIOMASS. It was the time when large fluctuations in the distribution of krill with subsequent detrimental effects on predator species dependent on krill had just been observed, and the question arose whether this was possibly the result of changes in the Antarctic water circulation.

Author : George A. Knox
Publisher : CRC Press
Page : 640 pages
File Size : 41,9 Mb
Release : 2006-12-13
Category : Science
ISBN : 9781420005134

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Biology of the Southern Ocean, Second Edition by George A. Knox Pdf

First published in 1993, The Biology of the Southern Ocean has been referred to as international research at its best and an invaluable reference. Drawing on the considerable volume of information published in the last ten years, this second edition retains the format that made the first edition a popular bestseller, while updating the information with the latest research results available. The book begins with a description of the physico-chemical environment and, in a logical sequence, covers phytoplankton and primary production, the sea ice microbial communities and the secondary consumers, the zooplankton. The author includes an extended chapter on the biology and ecology of Antarctic krill that highlights its central position in the Southern Ocean food web. A series of chapters consider the higher consumers, nekton (with an emphasis on cephalopods) fish, seals, whales, and seabirds. The following chapters explore selected ecosystem components; the benthic communities, life beneath the fast ice and ice shelves, recent advances in understanding decomposition processes, and the role of bacteria and protozoa. The author synthesizes ecosystem dynamics, with an emphasis on the pelagic ecosystem. He covers resource exploitation, the impact of such exploitation on the marine ecosystem, and the problems involved in the management of the living resources. His epilogue summarizes the extent to which our understanding of the functioning of the Antarctic marine ecosystem has changed in the last 50 years; for example, there has been a dramatic change in our view of krill and its role in the Southern Ocean marine ecosystem. The book concludes with the statement that research carried out under the AGCS Programme and the Scientific Committee on Antarctic Research (SCAR) will continue to provide critical information on the functioning of Antarctic marine ecosystems. Intended for all those with an ongoing interest in Antarctic research, conservation, and management, this volume represents one of the most authoritative resources in the field as it covers all aspects of this important marine ecosystem.

Author : Guido di Prisco,Bruno Maresca,Bruno Tota
Publisher : Springer Science & Business Media
Page : 298 pages
File Size : 50,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642762178

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Biology of Antarctic Fish by Guido di Prisco,Bruno Maresca,Bruno Tota Pdf

Biology of Antarctic Fish presents the most recent findings on the biology of fish in the unique environment of the Antarctic ocean. At present the year-round temperature of the coastal waters is very near -1,87 ° C, the equilibrium temperature of the ice-seawater mixture. This extremely low temperature affects different levels of organization of fish life: individuals, organ systems, cells, organelles, membranes, and molecules. Exploring ecology, evolution, and life history as well as physiology, biochemistry, and molecular biology of Antarctic fish the book describes the mechanisms of cold adaptation at all these levels. It provides material for discussion also for fundamental questions in the field of adaptation to an extreme environment and therefore is of particular interest not only to specialized scientists, but also to those involved in basic and evolutionary biology.

Author : Gotthilf Hempel
Publisher : Springer Science & Business Media
Page : 335 pages
File Size : 50,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642775956

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Weddell Sea Ecology by Gotthilf Hempel Pdf

Author : Anonim
Publisher : Unknown
Page : 218 pages
File Size : 55,9 Mb
Release : 1991
Category : Fisheries
ISBN : MINN:30000010395113

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Fishery Bulletin by Anonim Pdf

Author : Sanford A. Moss
Publisher : Columbia University Press
Page : 224 pages
File Size : 51,8 Mb
Release : 1988
Category : Nature
ISBN : 0231062699

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Natural History of the Antarctic Peninsula by Sanford A. Moss Pdf

Explores the natural riches of the coldest continent and examines the plant and animal life, particularly penguins, birds, seals, and fish.

Author : Volker Siegel
Publisher : Springer
Page : 441 pages
File Size : 44,5 Mb
Release : 2016-08-03
Category : Science
ISBN : 9783319292793

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Biology and Ecology of Antarctic Krill by Volker Siegel Pdf

This book gives a unique insight into the current knowledge of krill population dynamics including distribution, biomass, production, recruitment, growth and mortality rates. Detailed analysis is provided on food and feeding, reproduction and krill behaviour. The volume provides an overview on the aspects of natural challenges to the species, which involve predation, parasites and the commercial exploitation of the resource and its management. A chapter on genetics shows the results of population subdivision and summarizes recent work on sequencing transcriptomes for studying gene function as part of the physiology of live krill. The focus of Chapter 4 is on physiological functions such as biochemical composition, metabolic activity and growth change with ontogeny and season; and will demonstrate which environmental factors are the main drivers for variability. Further discussed in this chapter are the bottle necks which occur in the annual life cycle of krill, and the mechanisms krill have adapted to cope with severe environmental condition.

Author : Melany P. Puglisi,Mikel A. Becerro
Publisher : CRC Press
Page : 528 pages
File Size : 41,9 Mb
Release : 2018-08-30
Category : Nature
ISBN : 9780429842788

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Chemical Ecology by Melany P. Puglisi,Mikel A. Becerro Pdf

During the past 20 years, marine chemical ecology has emerged as a respected field of study providing a better understanding of the role natural products play in organisms and their environments. Ample data in this book advocates the conservation of marine environments for future drug discovery efforts while sustaining their overall health. Marine chemical ecology has expanded to include research in the areas of predator–prey interactions, marine microbial chemical ecology, and seasonal and geographical distribution of marine natural products.

Author : G.P. Glasby
Publisher : Elsevier
Page : 395 pages
File Size : 45,6 Mb
Release : 1989-02-07
Category : Science
ISBN : 0080870899

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Antarctic Sector of the Pacific by G.P. Glasby Pdf

The Antarctic Sector of the Pacific covers the area between Australia and South America south of about 45°S. The region comprises about 6% of the Earth's surface and is amongst the most remote, hostile and least studied of the world's oceans. The scientific importance of the region is derived from its role in the reconstruction of Gondwanaland, its influence on Pacific climate and palaeoclimate and its biological productivity. No systematic surveys of the region have been undertaken since the work of the U.S.N.S. Eltanin (1962-1972). The comprehensive reassessment of whale stocks by the International Whaling Commission in 1990 and problems with ratification of the Antarctic Minerals Regime attest to the importance of Antarctic matters at present. The book will stimulate scientific activity in the region and serve as a handbook for future research. It should also appeal to oceanographers and Polar scientists.