Ecolog A Y Desarrollo
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Dun Bradstreet Exporters Encyclopaedia
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Author :
language : en
Publisher:
Release Date : 1993
Dun Bradstreet Exporters Encyclopaedia written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Export marketing categories.
Material is arranged geographically. For each country there is a country profile followed by information on marketing data, communications, transportation, business travel, key contacts, and a summary trade regulations and documentation required. Also included are brief sections on U.S. ports, U.S. foreign trade zones, World Trade Center Association members, U.S. government agencies providing assistance to exporters, foreign trade organizations, foreign communications, and general exports and shipping information and practice.
Estuarine Ecology
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Author : John W. Day, Jr.
language : en
Publisher: John Wiley & Sons
Release Date : 2012-11-19
Estuarine Ecology written by John W. Day, Jr. and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-19 with Science categories.
Estuaries are among the most biologically productive ecosystems on the planet--critical to the life cycles of fish, other aquatic animals, and the creatures which feed on them. Estuarine Ecology, Second Edition, covers the physical and chemical aspects of estuaries, the biology and ecology of key organisms, the flow of organic matter through estuaries, and human interactions, such as the environmental impact of fisheries on estuaries and the effects of global climate change on these important ecosystems. Authored by a team of world experts from the estuarine science community, this long-awaited, full-color edition includes new chapters covering phytoplankton, seagrasses, coastal marshes, mangroves, benthic algae, Integrated Coastal Zone Management techniques, and the effects of global climate change. It also features an entriely new section on estuarine ecosystem processes, trophic webs, ecosystem metabolism, and the interactions between estuaries and other ecosystems such as wetlands and marshes
Acacia
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Author : Aide Matheson
language : en
Publisher:
Release Date : 2018
Acacia written by Aide Matheson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Acacia categories.
Acacia: Characteristics, Distribution and Uses opens with a chapter describing the wood of A. melanoxylon grown in Portugal in view of determining its technological quality for use in the construction and furniture industry. The characterization includes stem features, wood anatomical characteristics, chemical composition, wood density and mechanical properties.Next, the authors aim to describe and analyze common characteristics among Acacia s.l. species and to trace some parallelisms of their performance throughout several ecosystems that hold such species. It is well-known that Acacia s.l. species have the ability to fix atmospheric nitrogen and may modify soil chemistry and physics by enabling microorganisms/soil fauna to alter the microhabitat beneath the tree, and such characteristics are significant in the recovery of ecosystems.The potential of Acacia mangium, an exotic species, for restoration of a degraded land in Mt. Makiling Forest Reserve (MMFR), Philippines was also examined. Results suggested a general trend of changes in A. mangium plantation which was once a grassland dominated by Imperata cylindrica and Saccharum officinarum. Both (stems ha-1) and basal area (m2 ha-1) increased significantly in 2010-2018 (P=0.001).The authors discuss the way in which NMR spectroscopy applied to the study of gum exudates has become important since the 1990̍s in Venezuela. Analytical and structural studies of 23 species belonging to different genera and families have been reported through the combination of classic methodology for carbohydrates and NMR spectroscopy.The footprints left by evolution in the distribution of characters among current organisms have been one of the main tools in the study of organic evolution. The authors propose that the reconstruction of ancestral character states offers the possibility of knowing the changes suffered by characters in a species throughout evolutionary time.Pollinosis, also known as pollen allergy, hay fever or seasonal allergic rhinitis is one the most common respiratory disorders throughout the world. The inhalation of Acacia pollen is one of the main causes of respiratory allergic diseases in semiarid countries such as Iran, Saudi Arabia, and the United Arab Emirates. This book suggests that the recognition of allergenic components of pollens is essential for component-resolved diagnosis, the design of patient-specific immunotherapy, and the explanation of sensitization mechanisms to various allergens.The authors analyze Acacia-Pseudomyrmex mutualism which includes 15 species of acacias and a group of 10 species of mutualistic ants whose geographical distribution is similar. This relationship is frequently cited as an example of coevolution, a term that has been used to refer to the reciprocal change of interacting species where each of them acts as an agent of natural selection with respect to the other and where the reciprocal selection would result in congruent phylogenies.The concluding chapter characterizes the A. melanoxylon wood pulping performance regarding yield and kappa number as well as the pulp and paper properties. The application of fast spectroscopic technologies for pulp quality determination is also described.
Diez A Os De Conservaci N Del Lince Ib Rico
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Author : Miguel Ángel Simón Mata
language : en
Publisher: guiloza
Release Date : 2012
Diez A Os De Conservaci N Del Lince Ib Rico written by Miguel Ángel Simón Mata and has been published by guiloza this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Animals categories.
The Ecology And Management Of Non Timber Forest Resources
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Author : Charles M. Peters
language : en
Publisher: World Bank Publications
Release Date : 1996
The Ecology And Management Of Non Timber Forest Resources written by Charles M. Peters and has been published by World Bank Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Nature categories.
Introduction to the ecology of tropical forest resources-tree diversity and density, Flowering, fruiting and reproductive dynamics, Rgeneration and growth, Population struvture; Ecological impacts of forest resources extraction - timber extraction, non-timber forest product extration; management strategies for non-timber tropical forest inventory, selection of species and resources, yield studies, defining a sustainable harvest; Silvicultural treatment of non-timber tropical forest resources - the components and aplication of tropical silviculture, indigenous systems of forest management, steps toward a silviculture for non-timber forest resouces.
Diccionario De Ecolog A
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Author : Fausto O. Sarmiento
language : es
Publisher: Editorial Abya Yala
Release Date : 2000
Diccionario De Ecolog A written by Fausto O. Sarmiento and has been published by Editorial Abya Yala this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Ecology categories.
Seed Ecology
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Author : M.W. Fenner
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Seed Ecology written by M.W. Fenner and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This book is about the regeneration of plants from seed under field conditions. It attempts to give a reasonably balanced overview of the many aspects of this broad topic. The first chapter introduces some general ideas about reproduction in plants. Subsequent chapters deal with the early stages in the life of a plant, from ovule to established seedling, in a more or less chronological order. The final chapter shows how the data on regeneration requirements of different species can be used to explain a number of important characteristics of whole plant communities. The study of the ecological aspects of reproduction by seed touches on a range of issues of current interest in biology. A discussion of seed size and number involves a consideration of the concepts of resource allocation, life cycles and strategies. The in teractions between plants and animals seen in pollination, seed dispersal and predation provide excellent material for the study of coevolution. Investigations on regeneration from seed have greatly our understanding of the causes and maintenance of species added to diversity. The reader will find that virtually all the experiments and field observations described in this book are conceptually very simple. Many of them merely required numerous careful measurements.
The Ecology Of Cyanobacteria
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Author : B.A. Whitton
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-08
The Ecology Of Cyanobacteria written by B.A. Whitton and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-08 with Science categories.
Cyanobacteria make a major contribution to world photosynthesis and nitrogen fixation, but are also notorious for causing nuisances such as dense and often toxic `blooms' in lakes and the ocean. The Ecology of Cyanobacteria: Their Diversity in Time and Space is the first book to focus solely on ecological aspects of these organisms. Its twenty-two chapters are written by some thirty authors, who are leading experts in their particular subject. The book begins with an overview of the cyanobacteria - or blue-green algae, for those who are not specialists - then looks at their diversity in the geological record and goes on to describe their ecology in present environments where they play important roles. Why is one of the key groups of organisms in the Precambrian still one of the most important groups of phototrophs today? The importance of ecological information for rational management and exploitation of these organisms for commercial and other practical purposes is also assessed. Accounts are provided of nuisances as well as the ecology of the commercially successful Spirulina and the role of cyanobacteria in ecosystem recovery from oil pollution. Many chapters include aspects of physiology, biochemistry, geochemistry and molecular biology where these help general understanding of the subject. In addition there are three chapters dealing specifically with molecular ecology. Thirty-two pages of colour photos incorporate about seventy views and light micrographs. These features make the book valuable to a wide readership, including biologists, microbiologists, geologists, water managers and environmental consultants. The book complements the highly successful The Molecular Biology of Cyanobacteria already published by Kluwer.
Pulping The South
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Author : Ricardo Carriere
language : en
Publisher: Zed Books
Release Date : 1996-08-15
Pulping The South written by Ricardo Carriere and has been published by Zed Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-08-15 with Business & Economics categories.
The expansion of the pulp and paper industry is one of the most important causes of land and water conflicts in the South. This book examines the threat to livelihood, soil and biodiversity generated by large-scale pulpwood plantations in the South.
Oceanography And Marine Biology
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Author : R. N. Gibson
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Oceanography And Marine Biology written by R. N. Gibson and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Science categories.
Reflecting increased interest in the field and its relevance in global environmental issues, Oceanography and Marine Biology: An Annual Review, Volume 47 provides authoritative reviews that summarize results of recent research in basic areas of marine research, exploring topics of special and topical importance while adding to new areas as they arise. This volume, part of a series that regards the all marine sciences as a complete unit, features contributions from experts involved in biological, chemical, geological, and physical aspects of marine science.