Ecology

Ecology PDF Author: Charles J. Krebs
Publisher: Benjamin-Cummings Publishing Company
ISBN: 9780321068798
Category : Science
Languages : en
Pages : 695

Book Description
This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.

The Ecological World View

The Ecological World View PDF Author: Charles Krebs
Publisher: Univ of California Press
ISBN: 9780520254794
Category : Nature
Languages : en
Pages : 596

Book Description
Filled with many examples of topic issues and current events, this book develops a basic understanding of how the natural world works and of how humans interact with the planet's natural ecosystems. It covers the history of ecology and describes the general approaches of the scientific method, then takes a look at basic principles of population dynamics and applies them to everyday practical problems.

Ecology

Ecology PDF Author: Charles J. Krebs
Publisher: HarperCollins Publishers
ISBN:
Category : Science
Languages : en
Pages : 710

Book Description
What is ecology?; Introduction to the science of ecology; The problem of distribution: populations; Methods for analyzing distributions; Factors limiting distributions: dispersal; Factors limiting distributions: behavior, interrelations with other organisms, temperature, moisture, other physical and chemical; The problem of abundance: populations; Population parameters; Demographic techniques; Population growth; Species interactions: competition, predation, herbivory; Natural regulation of population size; Some examples of population studies; Some examples of population studies; Applied problems: 1. the optimum-yield problem, 2. biological control; Distribution and abundance at the community level; Community parameters; The nature of the community; Community structure; Community change; Species diversity; Community organization; Community metabolism: 1. primary production, 2. secundary production; Nutrient cycles.

Ecology

Ecology PDF Author: Charles Krebs
Publisher: Pearson
ISBN: 9780321688149
Category :
Languages : en
Pages : 0

Book Description

Why Ecology Matters

Why Ecology Matters PDF Author: Charles J. Krebs
Publisher: University of Chicago Press
ISBN: 022631829X
Category : Nature
Languages : en
Pages : 204

Book Description
Global temperatures and seawater levels rise; the world’s smallest porpoise species looms at the edge of extinction; and a tiny emerald beetle from Japan flourishes in North America—but why does it matter? Who cares? With this concise, accessible, and up-to-date book, Charles J. Krebs answers critics and enlightens students and environmental advocates alike, revealing not why phenomena like these deserve our attention, but why they demand it. Highlighting key principles in ecology—from species extinction to the sun’s role in powering ecosystems—each chapter introduces a general question, illustrates that question with real-world examples, and links it to pressing ecological issues in which humans play a central role, such as the spread of invasive species, climate change, overfishing, and biodiversity conservation. While other introductions to ecology are rooted in complex theory, math, or practice and relegate discussions of human environmental impacts and their societal implications to sidebars and appendices, Why Ecology Matters interweaves these important discussions throughout. It is a book rooted in our contemporary world, delving into ecological issues that are perennial, timeless, but could not be more timely.

Distribution Ecology

Distribution Ecology PDF Author: Marcelo Hernán Cassini
Publisher: Springer Science & Business Media
ISBN: 1461464153
Category : Science
Languages : en
Pages : 221

Book Description
This book brings together a set of approaches to the study of individual-species ecology based on the analysis of spatial variations of abundance. Distribution ecology assumes that ecological phenomena can be understood when analyzing the extrinsic (environmental) or intrinsic (physiological constraints, population mechanisms) that correlate with this spatial variation. Ecological processes depend on geographical scales, so their analysis requires following environmental heterogeneity. At small scales, the effects of biotic factors of ecosystems are strong, while at large scales, abiotic factors such as climate, govern ecological functioning. Responses of organisms also depend on scales: at small scales, adaptations dominate, i.e. the ability of organisms to respond adaptively using habitat decision rules that maximize their fitness; at large scales, limiting traits dominate, i.e., tolerance ranges to environmental conditions.​

Ecology

Ecology PDF Author: Michael Begon
Publisher: John Wiley & Sons
ISBN: 1119279313
Category : Science
Languages : en
Pages : 864

Book Description
A definitive guide to the depth and breadth of the ecological sciences, revised and updated The revised and updated fifth edition of Ecology: From Individuals to Ecosystems – now in full colour – offers students and practitioners a review of the ecological sciences. The previous editions of this book earned the authors the prestigious ‘Exceptional Life-time Achievement Award’ of the British Ecological Society – the aim for the fifth edition is not only to maintain standards but indeed to enhance its coverage of Ecology. In the first edition, 34 years ago, it seemed acceptable for ecologists to hold a comfortable, objective, not to say aloof position, from which the ecological communities around us were simply material for which we sought a scientific understanding. Now, we must accept the immediacy of the many environmental problems that threaten us and the responsibility of ecologists to play their full part in addressing these problems. This fifth edition addresses this challenge, with several chapters devoted entirely to applied topics, and examples of how ecological principles have been applied to problems facing us highlighted throughout the remaining nineteen chapters. Nonetheless, the authors remain wedded to the belief that environmental action can only ever be as sound as the ecological principles on which it is based. Hence, while trying harder than ever to help improve preparedness for addressing the environmental problems of the years ahead, the book remains, in its essence, an exposition of the science of ecology. This new edition incorporates the results from more than a thousand recent studies into a fully up-to-date text. Written for students of ecology, researchers and practitioners, the fifth edition of Ecology: From Individuals to Ecosystems is anessential reference to all aspects of ecology and addresses environmental problems of the future.

Scaling and Uncertainty Analysis in Ecology

Scaling and Uncertainty Analysis in Ecology PDF Author: Jianguo Wu
Publisher: Springer Science & Business Media
ISBN: 1402046634
Category : Science
Languages : en
Pages : 354

Book Description
This is the first book of its kind – explicitly considering uncertainty and error analysis as an integral part of scaling. The book draws together a series of important case studies to provide a comprehensive review and synthesis of the most recent concepts, theories and methods in scaling and uncertainty analysis. It includes case studies illustrating how scaling and uncertainty analysis are being conducted in ecology and environmental science.
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