North America contains an incredibly diverse array of natural environments, each supporting unique systems of plant and animal life. These systems, the largest of which are biomes, form intricate webs of life that have taken millennia to evolve. This richly illustrated book introduces readers to this extraordinary array of natural communities and their subtle biological and geological interactions. Completely revised and updated throughout, the second edition of this successful text takes a qualitative, intuitive approach to the subject, beginning with an overview of essential ecological terms and concepts, such as competitive exclusion, taxa, niches, and succession. It then goes on to describe the major biomes and communities that characterize the rich biota of the continent, starting with the Tundra and continuing with Boreal Forest, Deciduous Forest, Grasslands, Deserts, Montane Forests, and Temperature Rain Forest, among others. Coastal environments, including the Laguna Madre, seagrasses, Chesapeake Bay, and barrier islands appear in a new chapter. Additionally, the book covers many unique features such as pitcher plant bogs, muskeg, the polar ice cap, the cloud forests of Mexico, and the LaBrea tar pits. “Infoboxes” have been added; these include biographies of historical figures who provided significant contributions to the development of ecology, unique circumstances such as frogs and insects that survive freezing, and conservation issues such as those concerning puffins and island foxes. Throughout the text, ecological concepts are worked into the text; these include biogeography, competitive exclusion, succession, soil formation, and the mechanics of natural selection. Ecology of North America 2e is an ideal first text for students interested in natural resources, environmental science, and biology, and it is a useful and attractive addition to the library of anyone interested in understanding and protecting the natural environment.
From Coastal Wilderness to Fruited Plain is an account of the making of a large part of the American landscape following European settlement. Drawing upon land survey records and early travellers' accounts, Dr Whitney reconstructs the 'virgin' forests and grasslands of the north-eastern and central United States during the pre-settlement period. He then documents successively the clearance and fragmentation of the region's woodlands, the harvest of the forest and its game, the ploughing of the prairies, and the draining of wetlands. The degree to which these activities altered the soil, climate, plant and animal communities, and water cycle are evaluated, and the sustainability of present-day ecosystems is brought into question in this account.
Iowa is the only state that lies entirely within the natural region of the tallgrass prairie. Early documents indicate that 95 percent of the state—close to 30 million acres—was covered by prairie vegetation at the time of Euro-American settlement. By 1930 the prairie sod had been almost totally converted to cropland; only about 30,000 acres of the original “great green sea” remained. Now, in this gracefully illustrated manual, Shirley Shirley has created a step-by-step guide to reconstructing the natural landscape of Iowa and the Upper Midwest. Chapters on planning, obtaining and selecting plants and seeds, starting seeds indoors, preparing the site, planting, and maintenance set the stage for comprehensive species accounts. Shirley gives firsthand information on soil, moisture, sun, and pH requirements; location, size, and structure; blooming time and color; and propagation, germination, and harvesting for more than a hundred wildflowers and grasses. Shirley's sketches—all drawn from native plants and from seedlings that she grew herself—will be valuable for even the most experienced gardener. While other books typically feature only the flowering plant, her careful drawings show the three stages of the seedlings, the flower, and the seedhead with seeds as well as the entire plant. This practical and attractive volume will help anyone dedicated to reconstructing the lost “emerald growth” of the historic tallgrass prairie.
This book is a unique and integrated account of the history of North American vegetation and paleoenvironments over the past 70 million years. It includes discussions of the modern plant communities, causal factors for environmental change, biotic response, and methodologies. The history reveals a North American vegetation that is vast, immensely complex, and dynamic.