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Author : James Cunningham Ritchie
Publisher : Unknown
Page : 280 pages
File Size : 45,6 Mb
Release : 1984
Category : Botany
ISBN : UCAL:B4331465
Quaternary history of vegetation in the northern Yukon and adjacent Mackenzie Delta region.
Author : J. C. Ritchie
Publisher : Cambridge University Press
Page : 200 pages
File Size : 41,9 Mb
Release : 2004-04
Category : Science
ISBN : 0521544092
This book brings together all the available information about the complex history of vegetational and environmental change in Canada since the last Ice Age. Professor Ritchie discusses the roles of climactic change, wildfires, diseases, and biological factors in controlling the emerging patterns of new plant growth.
Author : B. Huntley,T. Webb III
Publisher : Springer Science & Business Media
Page : 808 pages
File Size : 52,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400930810
The analysis of vegetation history is one of the prime objectives for vegetation scientists. In order to understand the recent composition of local floras and plant communities a second knowledge of species com position during recent millenia is essential. With the present concern over climate changes, due to human activities, an understanding of past vegeta tion distribution becomes even more important, since the correlation between climate and vegetation can often be used to predict possible impacts to crops and forests. I was very fortunate to receive the help of Drs. Webb and Huntley to compile this volume on vegetation history. They have collated an impres sive set of papers which together give an account of the vegetation history of most of the continents during the late-Tertiary and Quaternery periods. There are, however, gaps in the coverage achieved, most notably Africa, and Asia apart from Japan. The information in this book will nonetheless certainly be used widely by vegetation scientists for the regions covered in the book and much of it has relevance to the areas not explicitly described. The authors of the individual chapters have done their best to cover recent topics of interest as well as established facts. It is intended that a separate volume will be produced in the near future covering the vegetation history of Africa and Asia. I thank the editors of It fits well into the this volume for their commendable achievement.
Author : Michael G. Barbour,William Dwight Billings
Publisher : Cambridge University Press
Page : 622 pages
File Size : 41,5 Mb
Release : 2000
Category : Nature
ISBN : 0521559863
This second edition provides extensively expanded coverage of North American vegetation from arctic tundra to tropical forests.
Author : Hugh M. French,Olav Slaymaker
Publisher : McGill-Queen's Press - MQUP
Page : 363 pages
File Size : 47,9 Mb
Release : 1993-03-16
Category : Science
ISBN : 9780773563544
Low temperatures, wind-chill, snow, sea ice, and permafrost have been primary characteristics of Canada's northern and alpine environments during the past two million years. The evolution of Canada's cultural landscapes, the processes of settlement of rural areas, and the present interaction of Canadian industrial society with its biophysical environment are all deeply influenced, directly or indirectly, by the frigidity of the greater part of the country. The phenomenon of global warming, if it occurs, will lessen this coldness, but its impact on temperature extremes, sea ice regimes, vegetation, snow distribution, permafrost, glaciers, lakes, rivers, and mountain hazards are all the subject of intensive research -- the highlights of which are reviewed in Canada's Cold Environments. Eleven of Canada's leading geographers, geologists, and ecologists provide an authoritative yet readable scientific statement about the physical nature of Canada's coldness. They focus on the distinctive attributes of Canada's cold environments, their temporal and spatial variability, and the constraints that coldness places on human activity. The book is aimed at environmental scientists at all levels who need informed overviews of the substantive findings on a range of cold-related topics.
Author : Geoffrey J. Matthews,Conrad Heidenreich,Byron Moldofsky,Thomas F. McIlwraith,John Warkentin
Publisher : University of Toronto Press
Page : 212 pages
File Size : 46,5 Mb
Release : 1998-01-01
Category : History
ISBN : 9780802042033
A distillation of sixty-seven of the best and most important plates from the original three volumes of the bestselling of the Historical Atlas of Canada.
Author : F.Stuart III Chapin,Christian Körner
Publisher : Springer Science & Business Media
Page : 337 pages
File Size : 40,5 Mb
Release : 2013-03-08
Category : Science
ISBN : 9783642789663
As human populations expand and have increasing access to technol ogy, two general environmental concerns have arisen. First, human pop ulations are having increasing impact on the earth system, such that we are altering the biospheric carbon pools, basic processes of elemental cycling and the climate system of the earth. Because of time lags and feedbacks, these processes are not easily reversed. These alterations are occurring now more rapidly than at any time in the last several million years. Secondly, human activities are causing changes in the earth's biota that lead to species extinctions at a rate and magnitude rivaling those of past geologic extinction events. Although environmental change is potentially reversible at some time scales, the loss of species is irrevo cable. Changes in diversity at other scales are also cause for concern. Habitat fragmentation and declines in population sizes alter genetic di versity. Loss or introduction of new functional groups, such as nitro gen fixers or rodents onto islands can strongly alter ecosystem processes. Changes in landscape diversity through habitat modification and frag mentation alter the nature of processes within and among vegetation patches. Although both ecological changes altering the earth system and the loss of biotic diversity have been major sources of concern in recent years, these concerns have been largely independent, with little concern for the environmental causes the ecosystem consequences of changes in biodiversity. These two processes are clearly interrelated. Changes in ecological systems cause changes in diversity.
Author : Geoffrey A.J. Scott
Publisher : McGill-Queen's Press - MQUP
Page : 404 pages
File Size : 40,8 Mb
Release : 1995-01-10
Category : Science
ISBN : 9780773565098
Canada's Vegetation includes comprehensive sections on tundra, forest-tundra, boreal forest and mixed forest transition, prairie (steppe), Cordilleran environments in western North America, temperate deciduous forests, and wetlands. An overview of each ecosystem is provided, and equivalent vegetation types throughout the world are reviewed and compared with those in Canada. The integration of data on climate, soil, and vegetation in a single volume makes this an invaluable reference tool. Canada's Vegetation is sure to become a standard textbook for those in the environmental sciences.
Author : Reinhard Pienitz,Marianne S.V. Douglas,John P. Smol
Publisher : Springer Science & Business Media
Page : 579 pages
File Size : 49,5 Mb
Release : 2007-11-08
Category : Science
ISBN : 9781402021268
Concerns about the effects of global climate change have focused attention on the vulnerability of circumpolar regions. This book offers a synthesis of the spectrum of techniques available for generating long-term environmental records from circumpolar lakes.
Author : Natarajan Ishwaran
Publisher : BoD – Books on Demand
Page : 318 pages
File Size : 40,5 Mb
Release : 2012-03-14
Category : Technology & Engineering
ISBN : 9789535102922
In this book entitled "The Biosphere", researchers from all regions of the world report on their findings to explore the origins, evolution, ecosystems and resource utilization patterns of the biosphere. Some describe the complexities and challenges that humanity faces in its efforts to experiment and establish a new partnership with nature in places designated as biosphere reserves by UNESCO under its Man and the Biosphere (MAB) Programme. At the dawn of the 21st century humanity is ever more aware and conscious of the adverse consequences that it has brought upon global climate change and biodiversity loss. We are at a critical moment of reflection and action to work out a new compact with the biosphere that sustains our own wellbeing and that of our planetary companions. This book is a modest attempt to enrich and enable that special moment and its march ahead in human history.
Author : Herman H. Shugart,Rik Leemans,Gordon B. Bonan
Publisher : Cambridge University Press
Page : 584 pages
File Size : 49,8 Mb
Release : 2005-03-07
Category : Nature
ISBN : 0521619734
The world's boreal forests, which lie to the south of the Arctic, are considered to be the Earth's most significant terrestrial ecosystems. A panel of ecologists here provide a synthesis of the important patterns and processes which occur in boreal forests and review the principal mechanisms which control the forest's patterns.
Author : Cary Mock
Publisher : Newnes
Page : 3883 pages
File Size : 43,5 Mb
Release : 2013-03-25
Category : Science
ISBN : 9780444536426
The second revised edition of the Encyclopedia of Quaternary Science, Four Volume Set, provides both students and professionals with an up-to-date reference work on this important and highly varied area of research. There are lots of new articles, and many of the articles that appeared in the first edition have been updated to reflect advances in knowledge since 2006, when the original articles were written. The second edition will contain about 375 articles, written by leading experts around the world. This major reference work is richly illustrated with more than 3,000 illustrations, most of them in colour. Research in the Quaternary sciences has advanced greatly in the last 10 years, especially since topics like global climate change, geologic hazards and soil erosion were put high on the political agenda. This second edition builds upon its award-winning predecessor to provide the reader assured quality along with essential updated coverage Contains 357 broad-ranging articles (4310 pages) written at a level that allows undergraduate students to understand the material, while providing active researchers with a ready reference resource for information in the field. Facilitates teaching and learning The first edition was regarded by many as the most significant single overview of Quaternary science ever, yet Editor-in-Chief, Scott Elias, has managed to surpass that in this second edition by securing even more expert reviews whilst retaining his renowned editorial consistency that enables readers to navigates seamlessly from one unfamiliar topic to the next
Author : James Vallière Wright
Publisher : University of Ottawa Press
Page : 589 pages
File Size : 44,6 Mb
Release : 1996-01-01
Category : Social Science
ISBN : 9781772821444
Covering the history of First Peoples in Canada from 10,000 to 1000 BC, this volume explores a period which includes the original settlement of the Americas, cultural diversification, technological advances, expanding trade networks, and the development of complex belief systems. A useful reference work for scholars and laypersons alike.
Author : E.C. Pielou
Publisher : University of Chicago Press
Page : 380 pages
File Size : 43,5 Mb
Release : 2008-04-15
Category : Science
ISBN : 9780226668093
The fascinating story of how a harsh terrain that resembled modern Antarctica has been transformed gradually into the forests, grasslands, and wetlands we know today.
Author : Pier Luigi Nimis,T.J. Crovello
Publisher : Springer Science & Business Media
Page : 290 pages
File Size : 47,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400920637
Many aspects of phytogeography have gained loped numerical techniques which allow the com greatly from the recent development of analytical bination of quantitative floristic and vegetational and numerical methods. The new methods have analyses with mapping and causal or evolu opened up new avenues of research, leading to a tionary deductions. The papers selected for the better understanding of the distribution and book show approaches for higher and lower plant evolutionary patterns of species and communities. forms. Several papers dealing with relevant in During the 1987 Botanical Congress in Berlin, formation on vegetation for the respective areas Drs Nimis and Haeupler organized a symposium appear for the first time. The combination of in which examples of present-day phytogeogra new approaches successfully applied to new phic work were discussed. After the symposium problems should be very stimulating to young it was agreed that a proceedings volume should scientists as many papers demonstrate how to be edited by Drs Nimis and Crovello. From the make efficient use of the new developments in lectures presented, those dealing primarily with information science for species-oriented phyto numerical methods were selected for the book. geography. This is the second volume of the T: VS series that While the book does not intend to serve as a deals with new aspects and methods of phyto textbook, it can be viewed as a guide to the geography.