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Population Harvesting

Population Harvesting
Author: Wayne M. Getz
Publisher: Princeton University Press
Total Pages: 416
Release: 1989-04-21
Genre: Nature
ISBN: 9780691085166

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Whether in felling trees for wood, rearing insects for biological control, or culling animals for conservation purposes, efficient management of biological systems requires quantitative analysis of population growth and harvesting policies. Aiming to encourage the exchange of ideas among scientists involved in the management of fisheries, wildlife, forest stands, and pest control, the authors of this work present a general framework for modeling populations that reproduce seasonally and that have age or stage structure as an essential component of management strategy. The book represents the first time that examples from such diverse areas of biological resource management have been brought together in a unified modeling framework using the standard notation of mathematical systems theory. In addition, the authors combine a nonlinear extension of Leslie matrix theory and certain linear elements, thereby permitting interesting analytical results and the creation of compact, realistic simulation models of resource systems.


General Technical Report INT.

General Technical Report INT.
Author:
Publisher:
Total Pages: 492
Release: 1989
Genre: Forests and forestry
ISBN:

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Community Forestry in Canada

Community Forestry in Canada
Author: Sara Teitelbaum
Publisher: UBC Press
Total Pages: 417
Release: 2016-07-28
Genre: Technology & Engineering
ISBN: 077483191X

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In recent decades, community forestry has taken root across Canada. Locally run initiatives are lauded as welcome alternatives to large corporate and industrial logging practices, yet little research has been done to document their tangible outcomes or draw connections between their ideals of local control, community benefit, ecological stewardship, and economic diversification and the realities of community forestry practice. This book brings together the work of over twenty-five researchers to provide the first comparative and empirically rich portrait of community forestry policy and practice in Canada. Tackling all of the forestry regions from Newfoundland to British Columbia, it unearths the history of community forestry, revealing surprising regional differences linked to patterns of policy-making and cultural traditions. Case studies celebrate innovative practices in governance and ecological management while uncovering challenges related to government support and market access. The future of the sector is also considered, including the role of institutional reform, multiscale networks, and adaptive management strategies.


A Synthesis of the Hydrological Consequences of Large-scale Mountain Pine Beetle Disturbance

A Synthesis of the Hydrological Consequences of Large-scale Mountain Pine Beetle Disturbance
Author: Markus Schnorbus
Publisher:
Total Pages: 40
Release: 2011
Genre: Nature
ISBN:

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The current synthesis is a review of research examining the effects of large-scale mountain pine beetle (MPB)-related disturbance conducted predominantly over the past five years. The emphasis is on research that explicitly examines the impact of beetle kill (or biotic disturbance in general) and the cumulative effects of large scale salvage harvesting operations in response to beetle kill. In general, forest disturbance has been found to increase snow accumulation and melt, reduce interception loss and evaporation, and increase runoff and stream flow.--Document.


The Mountain Pine Beetle

The Mountain Pine Beetle
Author: Pacific Forestry Centre
Publisher:
Total Pages: 304
Release: 2006
Genre: Forest management
ISBN: 9780662426233

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"This book presents a synthesis of published information on mountain pine beetle (Dendroctonus ponderosae Hopkins [Coleoptera: Scolytidae]) biology and management with an emphasis on lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests of western Canada. Intended as a reference for researchers as well as forest managers, the book covers three main subject areas: mountain pine beetle biology, management, and socioeconomic concerns. The chapters on biology cover taxonomy, life history and habits, distribution, insect-host tree interactions, development and survival, epidemiology, and outbreak history. The management section covers management strategy, survey and detection, proactive and preventive management, and decision support tools. The chapters on socioeconomic aspects include an economic examination of management programs and the utilization of post-beetle salvage timber in solid wood, panelboard, pulp and paper products."--Publisher's description.


Stem Cells

Stem Cells
Author: Ariff Bongso
Publisher: World Scientific
Total Pages: 721
Release: 2011
Genre: Science
ISBN: 9814289388

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Stem cell biology has drawn tremendous interest in recent years as it promises cures for a variety of incurable diseases. This book deals with the basic and clinical aspects of stem cell research and involves work on the full spectrum of stem cells isolated today. It also covers the conversion of stem cell types into a variety of useful tissues which may be used in the future for transplantation therapy. It is thus aimed at undergraduates, postgraduates, scientists, embryologists, doctors, tissue engineers and anyone who wishes to gain some insight into stem cell biology. This book is important as it is comprehensive and covers all aspects of stem cell biology, from basic research to clinical applications. It will have 33 chapters written by renowned stem cell scientists worldwide. It will be up-to-date and all the chapters include self-explanatory figures, color photographs, graphics and tables. It will be easy to read and give the reader a complete understanding and state of the art of the exciting science and its applications.


Selection Methods in Plant Breeding

Selection Methods in Plant Breeding
Author: Izak Bos
Publisher: Springer Science & Business Media
Total Pages: 356
Release: 2013-11-21
Genre: Science
ISBN: 940158432X

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Our requirement for plant breeders to be successful has never been greater. However one views the forecasted numbers for future population growth we will need, in the immediate future, to be feeding, clothing and housing many more people than we do, inadequately, at present. Plant breeding represents the most valuable strategy in increasing our productivity in a way that is sustainable and environmentally sensitive. Plant breeding can rightly be considered as one of the oldest multidisciplin ary subjects that is known to humans. It was practised by people who first started to carry out a settled form of agriculture. The art, as it must have been at that stage, was applied without any formal underlying framework, but achieved dramatic results, as witnessed by the forms of cultivated plants we have today. We are now learning how to apply successfully the results of yet imperfect scientific knowledge. This knowledge is, however, rapidly develop ing, particularly in areas of tissue culture, biotechnology and molecular biology. Plant breeding's inherent multifaceted nature means that alongside obvious subject areas like genetics we also need to consider areas such as: statistics, physiology, plant pathology, entomology, biochemistry, weed science, quality, seed characteristics, reproductive biology, trial design, se lection and computing.


Big-Leaf Mahogany

Big-Leaf Mahogany
Author: Ariel E. Lugo
Publisher: Springer Science & Business Media
Total Pages: 444
Release: 2006-04-10
Genre: Science
ISBN: 0387217789

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Big-Leaf Mahogany is the most important commercial timber species of the tropics. Current debate concerning whether to protect it as an endangered species has been hampered by the lack of complete, definitive scientific documentation. This book reports on vital research on the ecology of big-leaf mahogany, including genetic variations, regeneration, natural distribution patterns and the silvicutural and trade implications for the tree.