Download or read book Maintenance of genetic diversity and gene pool conservation of commercial or potentially commercial tree species in the Pacific Northwest Region United States Forest Service written by Peter A. Theisen and published by . This book was released on 1980 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Diversity in Commercial Tree Species written by Jean Beaulieu and published by [Sainte-Foy, Quebec] : Canadian Forest Service. This book was released on 2002 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Diversity and Genetic Diversity written by Mark Vellend and published by . This book was released on 2004 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trees tree genetic diversity and the livelihoods of rural communities in the tropics written by Dawson, I.K., Leakey, R., Place, F., Clement, C.R., Weber, J.C., Cornelius, J.P., Roshetko, J.M., Tchoundjeu, Z., Kalinganire, A., Masters, E., Orwa, C., McMullin, S., Kindt, R., Graudal, L. & Jamnadass, R. and published by Food & Agriculture Org.. This book was released on 2020-12-30 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study, prepared within the ambit of The State of the World’s Forest Genetic Resources, reviews what is known about the value of trees for tropical rural communities. It focuses on non-timber products harvested from trees in natural and managed forests and woodlands, the various products and services obtained from trees planted or retained in agroforestry systems, and the commercial products of tree commodity crops. The role of intra-specific genetic variation in determining the value of trees in supporting livelihoods is discussed in each of the three contexts. The study also identifies specific points that should be given particular attention in the future to better support tree-based livelihoods of rural communities in the tropics.

Download or read book Forest Genetics and Sustainability written by Csaba Mátyás and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 4th International Consultation on Forest Genetics and Tree Building, held in 1998 in Beijing, China, leading scientists were invited to review past achievements, to redefine the role of forest genetics and breeding in contemporary forestry, and to set priorities for future research and development. On the basis of the invited presentations, the volume summarizes the state of knowledge in various fields, such as the impact of forest management and of changing environmental conditions on genetic resources, and the value of genetic markers as indicators for adaptational potential, as well as the tasks of conservation. Detailed reports from the different continents provide a comprehensive diagnosis of the global situation of forest genetics and tree breeding research. The book offers not only an overview of contemporary trends and expected future developments, but also identifies current main problems in funding and cooperation. It may prove therefore useful not only for scientists, university lecturers and advanced students in the field of forestry, ecology and conservation biology, but also for decision makers and managers in companies and conservation organizations.

Download or read book Genetic Diversity and Population Structure of Three Tree Species Across an Urban to Remnant Landscape Gradient written by Lindsay E. Darling and published by . This book was released on 2013 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetics of Douglas fir written by Roy R. Silen and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Genetics written by Timothy L. White and published by CABI. This book was released on 2007 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, which contains 20 chapters, integrates the varied subdisciplines of genetics and their applications in gene conservation, tree improvement and biotechnology. Topics covered include: genetic variation in natural forests, the application of genetics in tree improvement and breeding programmes, and genomic sequences and molecular technologies. This book will be a valuable resource for students, scientists and professionals in the plant sciences, especially forest geneticists, tree breeders, forest managers and other natural resource specialists.

Download or read book Population Genetics of Forest Trees written by W.T. Adams and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical climates, which occur between 23°30'N and S latitude (Jacob 1988), encompass a wide variety of plant communities (Hartshorn 1983, 1988), many of which are diverse in their woody floras. Within this geographic region, temperature and the amount and seasonality of rainfall define habitat types (UNESCO 1978). The F AO has estimated that there 1 are about 19 million km of potentially forested area in the global tropics, of which 58% were estimated to still be in closed forest in the mid-1970s (Sommers 1976; UNESCO 1978). Of this potentially forested region, 42% is categorized as dry forest lifezone, 33% is tropical moist forest, and 25% is wet or rain forest (Lugo 1988). The species diversity of these tropical habitats is very high. Raven (1976, in Mooney 1988) estimated that 65% of the 250,000 or more plant species of the earth are found in tropical regions. Of this floristic assemblage, a large fraction are woody species. In the well-collected tropical moist forest of Barro Colorado Island, Panama, 39. 7% (481 of 1212 species) of the native phanerogams are woody, arborescent species (Croat 1978). Another 21. 9% are woody vines and lianas. Southeast Asian Dipterocarp forests may contain 120-200 species of trees per hectare (Whitmore 1984), and recent surveys in upper Amazonia re corded from 89 to 283 woody species ~ 10 cm dbh per hectare (Gentry 1988). Tropical communities thus represent a global woody flora of significant scope.

Download or read book Encyclopedia of Forest Sciences written by Julian Evans and published by Academic Press. This book was released on 2004-04-02 with total page 6502 pages. Available in PDF, EPUB and Kindle. Book excerpt: A combination of broad disciplinary coverage and scientific excellence, the Encyclopedia of Forest Sciences will be an indispensable addition to the library of anyone interested in forests, forestry and forest sciences. Packed with valuable insights from experts all over the world, this remarkable set not only summarizes recent advances in forest science techniques, but also thoroughly covers the basic information vital to comprehensive understanding of the important elements of forestry. The Encyclopedia of Forest Sciences also covers relevant biology and ecology, different types of forestry (e.g. tropical forestry and dryland forestry), scientific names of trees and shrubs, and the applied, economic, and social aspects of forest management. Valuable key features further enhance the utility of this Encyclopedia as an exceptional reference tool. Also available online via ScienceDirect – featuring extensive browsing, searching, and internal cross-referencing between articles in the work, plus dynamic linking to journal articles and abstract databases, making navigation flexible and easy. For more information, pricing options and availability visit www.info.sciencedirect.com. Edited and written by a distinguished group of editors and contributors Well-organized encyclopedic format provides concise, readable entries, easy searches, and thorough cross-references Illustrative tables, figures, and photographs in every entry, produced in full color Comprehensive glossary defines new and important terms Complete, up-to-date coverage of over 60 areas of forest sciences - sure to be of interest to scientists, students, and professionals alike! Editor-in-Chief is the past president of the International Union of Forestry Research Organizations, the oldest international collaborative forestry research organization with over 15,000 scientists from 100 countries

Download or read book Technologies to Maintain Biological Diversity written by and published by . This book was released on 1987 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emulating Natural Forest Landscape Disturbances written by Ajith H. Perera and published by Columbia University Press. This book was released on 2008-01-11 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is a natural forest disturbance? How well do we understand natural forest disturbances and how might we emulate them in forest management? What role does emulation play in forest management? Representing a range of geographic perspectives from across Canada and the United States, this book looks at the escalating public debate on the viability of natural disturbance emulation for sustaining forest landscapes from the perspective of policymakers, forestry professionals, academics, and conservationists. This book provides a scientific foundation for justifying the use of and a solid framework for examining the ambiguities inherent in emulating natural forest landscape disturbance. It acknowledges the divergent expectations that practitioners face and offers a balanced view of the promises and challenges associated with applying this emerging forest management paradigm. The first section examines foundational concepts, addressing questions of what emulation involves and what ecological reasoning substantiates it. These include a broad overview, a detailed review of emerging forest management paradigms and their global context, and an examination of the ecological premise for emulating natural disturbance. This section also explores the current understanding of natural disturbance regimes, including the two most prevalent in North America: fire and insects. The second section uses case studies from a wide geographical range to address the characterization of natural disturbances and the development of applied templates for their emulation through forest management. The emphasis on fire regimes in this section reflects the greater focus that has traditionally been placed on understanding and managing fire, compared with other forms of disturbance, and utilizes several viewpoints to address the lessons learned from historical disturbance patterns. Reflecting on current thinking in the field, immediate challenges, and potential directions, the final section moves deeper into the issues of practical applications by exploring the expectations for and feasibility of emulating natural disturbance through forest management.

Download or read book Forest Trees written by National Research Council (U.S.). Committee on Managing Global Genetic Resources: Agricultural Imperatives and published by Managing Global Genetic Resour. This book was released on 1991-01-15 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: World forests. Multiple uses of forest trees. Structure of genetic variation. Conservation and management of tree genetic resources. Instituition involved in managing tree genetic resources. Organizing a global system of cooperation.

Download or read book Technologies to maintain biological diversity written by United States. Congress. Office of Technology Assessment and published by DIANE Publishing. This book was released on with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agroforestry with Commercial Clonal Plantations in India written by Piare Lal and published by The Energy and Resources Institute (TERI). This book was released on 2020-06-05 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid deforestation and depletion of genetic resources have made it essential that avenues be found whereby short-duration trees can be propagated and massed produced. Clonal agroforestry plantations provide this alternative to the use of natural forests. Agroforestry with Commercial Clonal Plantations in India provides complete scientific information on clonal technology applications for selection and cloning of candidate plus trees, development, field testing, final selection and deployment of genetically superior, high yielding and fast-growing clones of important tree species grown under agroforestry system. Clonal agroforestry plantations need to be supported with strong R & D and sound, efficient and timely extension services for the farmers. The book discusses in detail the establishment of modern largescale clonal plant production nurseries and improved silvicultural management of clonal agroforestry plantations of Eucalypts, Poplars, Casuarinas, and other species. Specific recommendations for further advancements in all areas related to tree improvement, development of new superior clones, holistic development of agroforestry and required policy reforms have been also provided.

Download or read book Tropical Fruit Tree Diversity written by Bhuwon Sthapit and published by Routledge. This book was released on 2016-05-12 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Farmers have developed a range of agricultural practices to sustainably use and maintain a wide diversity of crop species in many parts of the world. This book documents good practices innovated by farmers and collects key reviews on good practices from global experts, not only from the case study countries but also from Brazil, China and other parts of Asia and Latin America. A good practice for diversity is defined as a system, organization or process that, over time and space, maintains, enhances and creates crop genetic diversity, and ensures its availability to and from farmers and other users. Drawing on experiences from a UNEP-GEF project on "Conservation and Sustainable Use of Wild and Cultivated Tropical Fruit Tree Diversity for Promoting Livelihoods, Food Security and Ecosystem Services", with case studies from India, Indonesia, Malaysia and Thailand, the authors show how methods for identifying good practices are still evolving and challenges in scaling-up remain. They identify key principles effective as a strategy for mainstreaming good practice into development efforts. Few books draw principles and lessons learned from good practices. This book fills this gap by combining good practices from the research project on tropical fruit trees with chapters from external experts to broaden its scope and relevance.

Download or read book Managing Global Genetic Resources written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This anchor volume to the series Managing Global Genetic Resources examines the structure that underlies efforts to preserve genetic material, including the worldwide network of genetic collections; the role of biotechnology; and a host of issues that surround management and use. Among the topics explored are in situ versus ex situ conservation, management of very large collections of genetic material, problems of quarantine, the controversy over ownership or copyright of genetic material, and more.