Download or read book Biotic Communities of the Aspen Parkland of Central Canada written by Ralph Durham Bird and published by . This book was released on 1930 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biotic Communities of the Aspen Parkland of Central Canada written by Ralph Durham Bird and published by . This book was released on 1930 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Community Food Webs written by Joel E. Cohen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food webs hold a central place in ecology. They describe which organisms feed on which others in natural habitats. This book describes recently discovered empirical regularities in real food webs: it proposes a novel theory unifying many of these regularities, as well as extensive empirical data. After a general introduction, reviewing the empirical and theoretical discoveries about food webs, the second portion of the book shows that community food webs obey several striking phenomenological regularities. Some of these unify, regardless of habitat. Others differentiate, showing that habitat significantly influences structure. The third portion of the book presents a theoretical analysis of some of the unifying empirical regularities. The fourth portion of the book presents 113 community food webs. Collected from scattered sources and carefully edited, they are the empirical basis for the results in the volume. The largest available set of data on community food webs provides a valuable foundation for future studies of community food webs. The book is intended for graduate students, teachers and researchers primarily in ecology. The theoretical portions of the book provide materials useful to teachers of applied combinatorics, in particular, random graphs. Researchers in random graphs will find here unsolved mathematical problems.

Download or read book Annotated Bibliography of Fire Literature Relative to Northern Grasslands in South central Canada and North central United States written by and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Factors Affecting Waterfowl Production in the Saskatchewan Parklands written by Jerome H. Stoudt and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resource Publication United States Bureau of Sport Fisheries and Wildlife written by and published by . This book was released on 1971 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of North America written by Brian R. Chapman and published by John Wiley & Sons. This book was released on 2015-04-09 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: North America contains an incredibly diverse array of naturalenvironments, each supporting unique systems of plant and animallife. These systems, the largest of which are biomes, formintricate webs of life that have taken millennia to evolve. Thisrichly illustrated book introduces readers to this extraordinaryarray of natural communities and their subtle biological andgeological interactions. Completely revised and updated throughout, the second edition ofthis successful text takes a qualitative, intuitive approach to thesubject, beginning with an overview of essential ecological termsand concepts, such as competitive exclusion, taxa, niches, andsuccession. It then goes on to describe the major biomes andcommunities that characterize the rich biota of the continent,starting with the Tundra and continuing with Boreal Forest,Deciduous Forest, Grasslands, Deserts, Montane Forests, andTemperature Rain Forest, among others. Coastal environments,including the Laguna Madre, seagrasses, Chesapeake Bay, and barrierislands appear in a new chapter. Additionally, the book covers manyunique features such as pitcher plant bogs, muskeg, the polar icecap, the cloud forests of Mexico, and the LaBrea tar pits.“Infoboxes” have been added; these include biographiesof historical figures who provided significant contributions to thedevelopment of ecology, unique circumstances such as frogs andinsects that survive freezing, and conservation issues such asthose concerning puffins and island foxes. Throughout the text,ecological concepts are worked into the text; these includebiogeography, competitive exclusion, succession, soil formation,and the mechanics of natural selection. Ecology of North America 2e is an ideal first text forstudents interested in natural resources, environmental science,and biology, and it is a useful and attractive addition to thelibrary of anyone interested in understanding and protecting thenatural environment.

Download or read book Silvical Characteristics of Quaking Aspen Populus Tremuloides written by R. O. Strothmann and published by . This book was released on 1957 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Examples of Aspen Treatment Succession and Management in Western Colorado written by Barry C. Johnston and published by . This book was released on 1985 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Community Ecology written by Alan Hastings and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of a workshop on community ecology organized at Davis, in April, 1986, sponsored by the Sloan Foundation. There have been several recent symposia on community ecology (Strong et. al., 1984, Diamond and Case, 1987) which have covered a wide range of topics. The goal of the workshop at Davis was more narrow: to explore the role of scale in developing a theoretical approach to understanding communities. There are a number of aspects of scale that enter into attempts to understand ecological communities. One of the most basic is organizational scale. Should community ecology proceed by building up from population biology? This question and its ramifications are stressed throughout the book and explored in the first chapter by Simon Levin. Notions of scale have long been important in understanding physical systems. Thus, in understanding the interactions of organisms with their physical environment, questions of scale become paramount. These more physical questions illustrate the role scale plays in understanding ecology, and are discussed in chapter two by Akira Okubo.

Download or read book Sjovold Site written by Ian G. Dyck and published by University of Ottawa Press. This book was released on 1995-01-01 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes and interprets the findings from archaeological excavations at the Sjovold Site, situated on the west bank of the South Saskatchewan River in the far northern Plains. It explores many features of life in ancient times, inferring, along with the cultural and historical framework, societal dimensions such as group size and gender, trade and travel as well as a wide range of daily activities.

Download or read book Under Prairie Skies written by C. Thomas Shay and published by U of Nebraska Press. This book was released on 2022-07 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Writer and anthropologist C. Thomas Shay traces the key roles of plants since humans arrived in the northern plains at the end of the Ice Age and began to hunt the region’s woodlands, fish its waters, and gather its flora.

Download or read book Research Paper INT written by and published by . This book was released on 1982 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Tree and Site Factors on Western Redcedar s Response to Release written by Dennis M. Cole and published by . This book was released on 1982 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Test of Methods for Amending and Seeding Spoils at the Blackbird Mine written by Bland Z. Richardson and published by . This book was released on 1981 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Tree and Site Factors on Western Redcedar s Response to Release written by Russell T. Graham and published by . This book was released on 1982 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cultural Responses to Altithermal Atlantic Climate Along the Eastern Margins of the North American Grasslands 5500 to 3000 B C written by Anthony P. Buchner and published by University of Ottawa Press. This book was released on 1980-01-01 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Palaeo-ecological data from central North America are synthesized in order to demonstrate the effects of the Altithermal or Atlantic Climatic Episode (circa 5500 to 3000 B.C). on vegetation. Against this environmental backdrop, Early Middle Prehistoric archaeological complexes are considered with particular attention to site setting, exploitation strategies and site distribution with comparisons to both earlier (Plano) and later (late Middle Prehistoric) complexes in the same region.