Download or read book The Savanna Ecosystem Northern Rupununi British Guiana written by Michael John Eden and published by . This book was released on 1964 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Savanna ecosystem northern Rupununi British Guiana written by Michael J. Eden and published by . This book was released on 1964 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the thesis is the investigation, initially in ecological terms and subsequently on a regional basis, of a savanna environment in British Guiana. In the examination of the savanna ecosystem, attention was focused initially on the concept of the ecoclimate. This concept provides a means of expressing the influence on plant growth, in terms of moisture availability, of many elements in the ecosystem, principally climate, relief, drainage and the physical condition of the soil. Of the factors examined, climatic fluctuations during the last 12,000 years were considered the most significant, and an attempt was made to relate these to the evolution of the present savanna landscape. In addition to considerations of climatic, pedologic and anthropic factors in the ecosystem, attention was paid to correlations that have been drawn, by some writers, between older landscape surfaces and savannas. Such an interpretation represents a broader, regional approach to a problem that has, in the present thesis, been given more detailed ecological treatment.
Download or read book The Savanna Ecosystem written by Michael John Eden and published by . This book was released on 1964 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On Termitaria in a Savanna Ecosystem written by Robert J. A. Goodland and published by . This book was released on 1965 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology of Neotropical Savannas written by Guillermo Sarmiento and published by Harvard University Press. This book was released on 1984 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrated view of the genesis of grasslands of the New World tropics, especially those of Venezuela.
Download or read book On the Savanna Vegetation of Calabozo Venezuela and Rupununi British Guiana written by Robert J. A. Goodland and published by . This book was released on 1966 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Phytosociological Study of the Northern Rupununi Savanna British Guiana written by Robert J. A. Goodland and published by . This book was released on 1964 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Savannas are one of the largest and least known vegetation types on the surface of the earth. They are so poorly known that they have neither been adequately mapped nor has their area been measured. However, the total area of savannas in the world may be almost 1 million square miles. In South America, they cover an area probably larger than any other type of vegetation on the continent. Savannas occupy over 20% of the area of Brazil, as much as 100,000 square miles in Venezuela, and not much less in Bolivia and Columbia (vide Shantz, 1954). Although savannas are larger in extent than the Tropical Rain Forests, they have attracted less attention. With the accelerating population increase in the world, savannas will become increasingly important for food production and settlement." --
Download or read book The Climate of the Rupununi Savannas written by David Brice Frost and published by McGill University. This book was released on 1967 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: The climate of the Rupununi savannas is closely examined with particular reference to the effects on moisture conditions of the wet and dry seasons. Two areas are selected where the forest savanna boundary might be climatically controlled. The first is the windward side of the Kanuku Mountains and the other the lee of the Pakaraima Mountains. At the foot of the Kanuku Mountains forest vegetation displays a tendency to extend onto the level savanna surface while savanna tends to extend into the mountains of the Pakaraimas. It was therefore anticipated that the first area would be wetter and the second area dryer than the open savanna. Although the former rainfall is only slightly greater, it is shown from a study of the water balance that the area has only half of the moisture deficit experienced by the savannas during the dry season. It is also demonstrated that in the lee of the Pakaraimas rainfall is so reduced that soil moisture recharge may only rarely be complete. In this instance the aridity is markedly greater than in the savannas. A similar situation seems to exist in the lee of the Kanuku Mountains but is not proved. It is concluded that the uncharacteristic location of the forest savanna boundary in both of these areas is largely due to the differences in the moisture regime caused by the changes in climate. (Author).
Download or read book The Rupununi Savannahs of British Guiana written by Earl B. Shaw and published by . This book was released on 1940 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology of Guyana written by F. Strum and published by . This book was released on 1978 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book British Guiana written by University of the West Indies, Trinidad. Regional Research Centre and published by . This book was released on 1958 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomorphic Evolution of the Northern Rupununi Basin Guyana written by N. K. P. Sinha and published by . This book was released on 1968 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The region described is located on the Amazon-Essiquibo divide and forms a tectonic depression in the heart of the Guiana Shield. The major physical aspects, including geology, tectonics, climate, geomorphic processes, drainage and relief conditions are mapped and analyzed. The surficial deposits of the area are identified and mapped and their origin postulated. Special attention is given to the evolution of laterites and laterite landforms. It is suggested that dissection of the laterite plateau and lowering of local base-level in early- and mid-Pleistocene times resulted in a change of vegetation from former forest to the present savanna. The significance of terrace and dune sands, cobbles and boulders of various rock-types, climatic and vegetative changes during the Pleistocene, and erosion surfaces, are evaluated as factors in the evolution of the present northern Rupununi landscape. (Author).
Download or read book Tropical Ecological Systems written by F.B. Golley and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1971 the International Society of Tropical Ecology and the International Association for Ecology held a meeting on Tropical Ecology, with an emphasis on organic production in New Delhi, India. At this meeting a Working Group on Tropical Ecology was organized, consisting of K. C. Misra (India), F. Malaisse (Zaire), E. Medina (Venezuela) and F. Golley (U.S.A.). The object of this Working Group was to stimulate interaction between tropical ecologists through future scientific meetings and other exchanges and communications. A second meeting of ISTE and INTECOL was held in Caracas, Venezuela in 1973, under the direction of Medina and Golley and sponsored by the Depart ment of Ecology, Institute Venezolano Investigaciones Cientificas (lVIC). The basic structure of the meeting was provided by series of invited papers which considered topics of special interest from both an applied and theoretical view. These included physiological ecology (Pannier), populations (Rabinovich), tropical savannas (Lamotte), rivers (Sioli), estuaries (Rodriguez), and island ecosystems (Mueller-Dombois). Contributed papers considered details of these and other ecological topics, including the application of ecology to human problems. The present volume includes the invited papers listed above and a sampling of contributed papers which together illustrate the trends of research in tropical ecology. The papers show that tropical ecology is a vigorous subject of research. While the papers in this volume do not provide reviews of all the topics of study in tropical ecology, they do present authoritative statements on progress in the major subject in the field.
Download or read book The Ecology of the Forest savanna Boundary written by International Geographical Union. Commission on Humid Tropics and published by . This book was released on 1968 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report is the outcome of a symposium on the ecology of the forest/savanna boundary. The papers presented at the meeting have been cut and edited so that a theme is presented rather than a series of papers. In the introduction, the problems involved in savanna classification and the ambiguity of terminology are discussed, types of savanna found in different parts of the world described, and methods of examination analysed. The section is concluded by a description of the field trip made by the Symposium members, during which many of the differences in attitude were seen in a fresh light. A second chapter is concerned with savanna/forest boundaries held stable by factors of the physical environment; here the roles of flooding and desiccation, climate, soils and geomorphology are examined. In the third chapter the authors discuss stable boundaries resulting from human action. Fire and the role of domesticated grazing animals are seen as the major factors. The subject of the fourth section is the boundary when not in equilibrium. Many factors are examined in different parts of the world including soil, wild animals, fire, palaeoclimatology and man. An evaluation is made of the use of palynological and historical data. (Author).
Download or read book A Comparative Checklist of the Plant Diversity of the Iwokrama Forest Guyana written by H. D. Clarke and published by BRIT Press. This book was released on 2001 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Geography of South America written by Thomas A. Rumney and published by Scarecrow Press. This book was released on 2013-04-18 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: South America is an area of fascination and study for geographers and other scholars from around the world, and its land and people have played important roles in the discovery and distribution of civilizations, resources, and nations for millennia. The region has long stimulated a large amount of research across the many subdisciplines of geography, and Thomas A. Rumney collects, organizes, and presents as many scholarly publications as possible in The Geography of South America: A Scholarly Guide and Bibliography. Every South American nation is included: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Surinam, Uruguay, and Venezuela. Beginning with an overview of the region as a whole, successive chapters, one per nation, are divided by specific subdisciplines of geography: cultural, social, economic, historical, physical and environmental, political, and urban. Each section is then divided by document type: atlases, books, book chapters, articles from scholarly journals, master’s theses, and doctoral dissertations. Although the majority of entries focus on English-language works, selected entries written in Spanish, French, German, and other languages are also included (with the entry titles translated into English and noted accordingly).
