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The demand for electricity has never been higher and is growing rapidly. This book examines all of the main forms of electricity generation in terms of their ecological impacts and effects on climate change, arguing that the only way to minimise impacts will be to minimise our consumption and transmission.

Intro -- Ecological Methods -- Contents -- Prefaces -- Preface to fourth edition -- Preface to third edition -- Preface to second edition -- Preface to first edition -- About the Companion Website -- 1 Introduction to the Study of Animal Populations -- 1.1 Population estimates -- 1.1.1 Absolute and related estimates -- 1.1.2 Relative estimates -- 1.1.3 Population indices -- 1.2 Errors and confidence -- References -- 2 The Sampling Programme and the Measurement and Description of Dispersion -- 2.1 Preliminary sampling -- 2.1.1 Planning and fieldwork -- 2.1.2 Statistical aspects -- 2.2 The sampling programme -- 2.2.1 The number of samples per habitat unit (e.g. plant, host or puddle) -- 2.2.2 The sampling unit, its selection, size and shape -- 2.2.3 The number of samples -- 2.2.4 The pattern of sampling -- 2.2.5 The timing of sampling -- 2.3 Dispersion -- 2.3.1 Mathematical distributions that serve as models -- 2.3.2 Biological interpretation of dispersion parameters -- 2.3.3 Nearest-neighbour and related techniques: measures of population size or of the departure from randomness of the distribution -- 2.4 Sequential sampling -- 2.4.1 Sampling numbers -- 2.5 Presence or absence sampling -- 2.6 Sampling a fauna -- 2.7 Biological and other qualitative aspects of sampling -- 2.8 Jack knife and Bootstrap techniques -- References -- 3 Absolute Population Estimates Using Capture-Recapture Experiments -- 3.1 Capture-recapture methods -- 3.1.1 Assumptions common to most methods -- 3.1.2 Estimating closed populations -- 3.1.3 Estimations for open populations -- 3.2 Methods of marking animals -- 3.2.1 Handling techniques -- 3.2.2 Release -- 3.2.3 Surface marks using paints and solutions of dyes -- 3.2.4 Dyes and fluorescent substances in powder form -- 3.2.5 Pollen -- 3.2.6 Marking formed by feeding on or absorption of dyes.

Peter Henderson, the Youth Endowment Fund's head of toolkit, on why the organisation has created a resource summarising the best research on different approaches to preventing serious youth violence

This classic text, whose First Edition one reviewer referred to as "the ecologists' bible," has been substantially revised and rewritten. Not only have the advances made in the field since the Second Edition been taken into account, but the scope has been explicitly extended to all macroscopic animals, with particular attention being paid to fish as well as other vertebrates. Ecological Methods provides a unique synthesis of the methods and techniques available for the study of populations and ecosystems. Techniques used to obtain both absolute and relative population estimates are described