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Some Adaptations of Marsh-nesting Blackbirds
The variety of social systems among the New World blackbirds (Family Icteridae) and the structural simplicity of their foraging environment provide excellent opportunities for testing theorics about the adaptive significance of their behavior. Here Gordon Orians presents the results of his many years of research on how blackbirds utilize their marsh environments during the breeding season. These results stem from information he gathered on three species during ten breeding seasons in the Pacific Northwest, on Red-winged blackbirds during two breeding seasons in Costa Rica, and on three species during one breeding season in Argentina. The author uses models derived from Darwin's theory of nat...
Red-winged Blackbirds
Drawing on detailed data from their sixteen-year study of red-winged blackbirds in the marshes of Washington's Columbia National Wildlife Refuge, Beletsky and Orians analyze the information redwings use to make breeding-season decisions and the consequences these decisions have for lifetime reproductive success. Because male and female redwings make different, and often independent, decisions—males focus on territory acquisition and maintenance, while females must choose when and where to nest and how much energy to invest in reproduction—the authors have taken the novel approach of studying the sexes separately. Using analyses of observational data combined with field experiments and game-theoretical models, the authors provide new insights into the complex patterns of reproductive decision-making and breeding behavior in redwings. This book will be of interest to all who study social animals, including behavioral ecologists, evolutionary biologists, and ornithologists.
Earth System Science
Over the last decade, the study of cycles as a model for the earth's changing climate has become a new science. Earth Systems Science is the basis for understanding all aspects of anthropogenic global change, such as chemically forced global climate change. The work is aimed at those students interested in the emerging scientific discipline.Earth Systems Science is an integrated discipline that has been rapidly developing over the last two decades. New information is included in this updated edition so that the text remains relevant. This volume contains five new chapters, but of special importance is the inclusion of an expanded set of student exercises.The two senior authors are leading scientists in their fields and have been awarded numerous prizes for their research efforts.* First edition was widely adopted* Authors are highly respected in their field* Global climate change, integral to the book, is now one of the most important issues in atmospheric sciences and oceanography
Biodiversity and Ecosystem Processes in Tropical Forests
Although biologists have directed much attention to estimating the extent and causes of species losses, the consequences for ecosystem functioning have been little studied. This book examines the impact of biodiversity on ecosystem processes in tropical forests - one of the most species-rich and at the same time most endangered ecosystems on earth. It covers the relationships between biodiversity and primary production, secondary production, biogeochemical cycles, soil processes, plant life forms, responses to disturbance, and resistance to invasion. The analyses focus on the key ecological interfaces where the loss of keystone species is most likely to influence the rate and stability of ecosystem processes.
Nature and Landscape
The roots of environmental aesthetics reach back to the ideas of eighteenth-century thinkers who found nature an ideal source of aesthetic experience. Today, having blossomed into a significant subfield of aesthetics, environmental aesthetics studies and encourages the appreciation of not just natural environments but also human-made and human-modified landscapes. Nature and Landscape is an important introduction to this rapidly growing area of aesthetic understanding and appreciation. Allen Carlson begins by tracing the development of the field's historical background, and then surveys contemporary positions on the aesthetics of nature, such as scientific cognitivism, which holds that certain kinds of scientific knowledge are necessary for a full appreciation of natural environments. Carlson next turns to environments that have been created or changed by humans and the dilemmas that are posed by the appreciation of such landscapes. He examines how to aesthetically appreciate a variety of urban and rural landscapes and concludes with a discussion of whether there is, in general, a correct way to aesthetically experience the environment.
Global biogeochemical cycles
Global biogeochemical cycles
Snakes, Sunrises, and Shakespeare
The eminent zoologist “extends his pioneering work in evolutionary biology” to examine “our preferences, predilections, fears, hopes, and aspirations” (Stephen R. Kellert, author of Birthright). Why do we jump in fear at the sight of a snake and marvel at the beauty of a sunrise? These impulsive reactions are no accident; in fact, many of our human responses to nature are steeped in our evolutionary past—we fear snakes because of the danger of venom, and we welcome the assurances of sun as the predatory dangers of night disappear. According to evolutionary biologist Gordon Orians, many of our aesthetic preferences—from the kinds of gardens we build to the foods we enjoy and the e...
North Pacific Temperate Rainforests
The North Pacific temperate rainforest, stretching from southern Alaska to northern California, is the largest temperate rainforest on earth. This book provides a multidisciplinary overview of key issues important for the management and conservation of the northern portion of this rainforest, located in northern British Columbia and southeastern Alaska. This region encompasses thousands of islands and millions of acres of relatively pristine rainforest, providing an opportunity to compare the ecological functioning of a largely intact forest ecosystem with the highly modified ecosystems that typify most of the world's temperate zone. The book examines the basic processes that drive the dynam...
Landscape Meanings and Values
First published in 1986, Landscape Meanings and Values presents a major contribution to the debate concerning the relationship between theory and practice in landscape analysis and planning. It brings together a number of the most eminent researchers, commentators and practitioners from both the United States of America and Britain to pursue the fundamental meanings and values in landscape. The insights into the theory behind landscape management will force a fundamental rethink of the role of landscape architect and land management. Academic researchers will find the feedback from eminent practitioners a stimulation for more practical research. The collection of ideas in the last chapter provides a unique synthesis of the need for an expansion of study into the fundamental significance of landscape today. This book will be of value to students of geography, environmental studies, landscape architecture and land management.
Fisheries Review
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