Essential A2 Biology for OCR

Essential A2 Biology for OCR PDF Author: Glenn Toole
Publisher: Nelson Thornes
ISBN: 9780748785186
Category : Science
Languages : en
Pages : 182

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Book Description
Written by experienced authors and practising teachers the Essentials student book matches the OCR specifications for A2 Biology and Human Biology.

Essential A2 Biology for OCR

Essential A2 Biology for OCR PDF Author: Glenn Toole
Publisher: Nelson Thornes
ISBN: 9780748785186
Category : Science
Languages : en
Pages : 182

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Book Description
Written by experienced authors and practising teachers the Essentials student book matches the OCR specifications for A2 Biology and Human Biology.

The Sustainable Forestry Handbook

The Sustainable Forestry Handbook PDF Author: Neil Judd
Publisher: Earthscan
ISBN: 1849773319
Category : Nature
Languages : en
Pages : 339

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Book Description
The Sustainable Forestry Handbook is widely considered to be the essential aid to understanding and implementing sustainable forest management. Providing a clear and concise guide to the practicalities of implementing international standards for sustainable forest management, this fully updated second edition covers new Forest Stewardship Council requirements, High Conservation Value Forests, clearer requirements on pesticides and developments in policy and forest governance. Aimed at forest managers, and employing extensive cross referencing and easy-to-understand illustrations, this highly practical handbook explains in clear terms what the standards require forest managers to do and how they might go about implementing them.

Marine Ecological Processes

Marine Ecological Processes PDF Author: Ivan Valiela
Publisher: Springer Science & Business Media
ISBN: 1475718330
Category : Science
Languages : en
Pages : 555

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Book Description
This text is aimed principally at the beginning graduate or advanced undergraduate student, but was written also to serve as a review and, more ambitiously, as a synthesis of the field. To achieve these purposes, several objectives were imposed on the writing. The first was, since ecol ogists must be the master borrowers of biology, to give the flavor of the eclectic nature of the field by providing coverage of many of the interdis ciplinary topics relevant to marine ecology. The second objective was to portray marine ecology as a discipline in the course of discovery, one in which there are very few settled issues. In many instances it is only possible to discuss diverse views and point out the need for further study. The lack of clear conclusions may be frustrating to the beginning student but nonetheless reflects the current-and necessarily exciting-state of the discipline. The third purpose is to guide the reader further into topics of specialized interest by providing sufficient recent references especially reviews. The fourth objective is to present marine ecology for what it is: a branch of ecology. Many concepts, approaches, and methods of marine ecology are inspired or derived from terrestrial and limnological antecedents. There are, in addition, instructive comparisons to be made among results obtained from marine, freshwater, and terrestrial environ ments, I have therefore incorporated the intellectual antecedents of par ticular concepts and some non-marine comparisons into the text.

Michigan Trees, Revised and Updated

Michigan Trees, Revised and Updated PDF Author: Burton V. Barnes
Publisher: University of Michigan Press
ISBN: 9780472089215
Category : Nature
Languages : en
Pages : 468

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Book Description
The number-one book for tree identification in Michigan and the Great Lakes

The Unity of Science and Economics

The Unity of Science and Economics PDF Author: Jing Chen
Publisher: Springer
ISBN: 149393466X
Category : Science
Languages : en
Pages : 148

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Book Description
This book presents a new economic theory developed from physical and biological principles. It explains how technology, social systems and economic values are intimately related to resources. Many people have recognized that mainstream (neoclassical) economic theories are not consistent with physical laws and often not consistent with empirical patterns, but most feel that economic activities are too complex to be described by a simple and coherent mathematical theory. While social systems are indeed complex, all life systems, including social systems, satisfy two principles. First, all systems need to extract resources from the external environment to compensate for their consumption. Second, for a system to be viable, the amount of resource extraction has to be no less than the level of consumption. From these two principles, we derive a quantitative theory of major factors in economic activities, such as fixed cost, variable cost, discount rate, uncertainty and duration. The mathematical theory enables us to systematically measure the effectiveness of different policies and institutional structures at varying levels of resource abundance and cost.The theory presented in this book shows that there do not exist universally optimal policies or institutional structures. Instead, the impacts of different policies or social structures have to be measured within the context of existing levels of resource abundance. As the physical costs of extracting resources rise steadily, many policy assumptions adopted in mainstream economic theories, and workable in times of cheap and abundant energy supplies and other resources, need to be reconsidered. In this rapidly changing world, the theory presented here provides a solid foundation for examining the long-term impacts of today's policy decisions.

Seeds

Seeds PDF Author: Carol C. Baskin
Publisher: Elsevier
ISBN: 9780120802630
Category : Language Arts & Disciplines
Languages : en
Pages : 684

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Book Description
Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination provides a working hypothesis of the ecological and environmental conditions under which carious kinds of seed dormancy have developed. It also presents the seed germination of morethan 3500 species of trees, shrubs, vines, and herbaceous species.

Forest Ecology

Forest Ecology PDF Author: Arnold van der Valk
Publisher: Springer Science & Business Media
ISBN: 9048127955
Category : Science
Languages : en
Pages : 358

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Book Description
This volume provides an overview of recent advances in forest ecology on a variety of topics, including species diversity and the factors that control species diversity, environmental factors controlling distribution of forests, impacts of disturbances on forests (fires, drought, hurricane), reproduction ecology of both trees and understory species, and spatial organization of forests. Previously published in Plant Ecology, Volume 201, No.1, 2009.

Humid Tropical Environments

Humid Tropical Environments PDF Author: Alison Reading
Publisher: John Wiley & Sons
ISBN: 0631191747
Category : Science
Languages : en
Pages : 454

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Book Description
The humid tropics contain some of the world's richest, most diverse, most important and most threatened environments. This book draws on recent work by geographers, biologists, ecologists, geologists and climatologists to present a complete and integrated appraisal of the natural environment of all the humid tropical regions of the world. The most complete textbook on this key subject. Fully illustrated throughout with photographs and diagrams. Informative case studies and examples. Considers the physical environment as a whole and stresses the link between the elements.

General Technical Report INT.

General Technical Report INT. PDF Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 542

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Book Description


USDA Forest Service General Technical Report INT.

USDA Forest Service General Technical Report INT. PDF Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 552

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Book Description