Ecological Diversity and Its MeasurementSpringer Science & Business Media, 2013 M04 17 - 179 páginas Although diversity is one of the central themes of ecology there is considerable disagreement ab out how it should be measured. I first encountered this problem 10 ycars ago whcn I started my research career and spent a long time pouring ovcr the literature in order to find the most useful techniques. The intervening decade has seen a further increasc in the number ofpapers devoted to the topic of ecological diversity but has led to no consensus on how it should be measured. My aim in writing this book is therefore to provide a practical guide to ecological diversity and its measurement. In a quantitative subject such as the measurement of diversity it is inevitable that some mathematics are involved, but at all times these are kept as simple as possible, and the emphasis is constantly on ecological reality and practical application. I hope that others ente ring thc fascinating ficld of ecological diversity will find it hclpful. This book grew out of my work in The School of Biological and Environmental Studies at the New University ofUlster, Coleraine, Northern Ircland. I am indebted to all the ecologists there for pro vi ding a stimulating atmosphere. Foremost among these were Amyan Macfadyen and Palmer Newbould. A number of the figures and tables in the book are based on data collected in Northern Irish woodlands. |
Contenido
Diversity indices and species abundance models | 6 |
Sampling | 47 |
Choosing and interpreting diversity measures 61 | 60 |
A variety of diversities | 81 |
The empirical value of diversity measures | 101 |
Otras ediciones - Ver todas
Términos y frases comunes
abundance classes abundances of species abundant species alpha diversity Banagher benthic Berger-Parker index Biol Brillouin index broken stick model calculated Chapman and Hall Chapter communities data sets diversity indices diversity measures diversity statistic dominance Ecol ecological diversity ecologists environmental equation estimate example Figure gamma diversity geometric series gradient graph habitat habitat diversity index of diversity insect investigation jack-knife log normal distribution log series MacArthur Magurran Margalef Margalef index measure of diversity method moths nature reserves niche width ns ns ns number of individuals number of species observed pattern of species Pielou plant pollution proportional abundance Q statistic quadrats rank abundance plot rare species Redrawn relative abundances Shannon index shows Simpson Simpson's index Southwood 1978 species abundance data species abundance distribution species abundance models species diversity species richness ẞ diversity structural diversity Table Taylor total number truncated log normal Whittaker Wildlife Conservation Evaluation woodland