You may have to register before you can download all our books and magazines, click the sign up button below to create a free account.
Pielou describes the natural history of fresh water--a vital ingredient of the natural world--exploring its sources and destinations, how it moves over and under the earth, and how it ends up in the atmosphere. 81 line drawings.
The fascinating story of how a harsh terrain that resembled modern Antarctica has been transformed gradually into the forests, grasslands, and wetlands we know today.
This book is a practical, portable guide to all of the Arctic's natural history—sky, atmosphere, terrain, ice, the sea, plants, birds, mammals, fish, and insects—for those who will experience the Arctic firsthand and for armchair travelers who would just as soon read about its splendors and surprises. It is packed with answers to naturalists' questions and with questions—some of them answered—that naturalists may not even have thought of.
Perfect for reminders, calendar notes, homework notes, name tags, and much more! Each pad features 50 acid-free, lignin-free sheets and measures approx. 6" x 7.5". Available in a variety of prints, notepads are an essential addition to any teacher's desk!
A detailed introduction to the methods used by ecologists--classification and ordination--to clarify and interpret large, unwieldy masses of multivariate field data. Permits ecologists to understand, not just mechanically use, pre-packaged programs for multivariate analysis. Demonstrates these techniques using artificial data simple enough for every analytical step to be understood.
Examines the evolution of life on a constantly changing planet and the results of that process. Explores new insights from plate tectonics; from deep ocean life investigations; from island biogeography; from growing knowledge about past geography, climates and ecology; and from development in evolutionary theory will interest `outdoor' biologists of all kinds, ecologists, students of evolution, oceanographers, paleontologists, and geographers. With numerous maps and diagrams and a bibliography of over 300 references.
The northern coniferous forests are the most extensive in the world, covering large tracts across the boreal regions of North America, Europe, and Asia. This updated edition (1st ed., CH, Dec'88, 26-2133) provides an overview of these forests from the perspective of North America. Pielou (The Energy of Nature, CH, Oct'01, 39-0997; Fresh Water, CH, Mar'99, 36-3926) discusses the types of trees present, the interactions of trees with other organisms, and the fate of forests in a changing environment. The book is aimed at general readers, who might include interested amateurs or students in an introductory forestry course. It introduces tree taxonomy and identification along with commentary on ...
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...
This accessible and timely book provides a comprehensive overview of how to measure biodiversity. The book highlights new developments, including innovative approaches to measuring taxonomic distinctness and estimating species richness, and evaluates these alongside traditional methods such as species abundance distributions, and diversity and evenness statistics. Helps the reader quantify and interpret patterns of ecological diversity, focusing on the measurement and estimation of species richness and abundance. Explores the concept of ecological diversity, bringing new perspectives to a field beset by contradictory views and advice. Discussion spans issues such as the meaning of community in the context of ecological diversity, scales of diversity and distribution of diversity among taxa Highlights advances in measurement paying particular attention to new techniques such as species richness estimation, application of measures of diversity to conservation and environmental management and addressing sampling issues Includes worked examples of key methods in helping people to understand the techniques and use available computer packages more effectively