The Scientific Bases For Preservation Of The Mariana Crow

This book, while focusing on current preservation challenges posed by the Aga, or Mariana crow, also reflects the larger issues and challenges of biodiversity conservation in all oceanic island ecosystems. It evaluates causes for the continuing decline of the Aga, which exists on only the two southernmost islands in the Mariana archipelago, Guam and Rota, and reviews actions to halt or reverse the decrease. This book reminds us of the importance and challenge of preserving the unique environmental heritage of islands of the Mariana archipelago, the need for increased knowledge to restore and maintain native species and habitats, and the compelling and lasting value of extensive public education to stimulate environmentally informed public policy development.

This book, while focusing on current preservation challenges posed by the Aga, or Mariana crow, also reflects the larger issues and challenges of biodiversity conservation in all oceanic island ecosystems. It evaluates causes for the continuing decline of the Aga, which exists on only the two southernmost islands in the Mariana archipelago, Guam and Rota, and reviews actions to halt or reverse the decrease. This book reminds us of the importance and challenge of preserving the unique environmental heritage of islands of the Mariana archipelago, the need for increased knowledge to restore and maintain native species and habitats, and the compelling and lasting value of extensive public education to stimulate environmentally informed public policy development.

World human population is expected to reach upwards of 9 billion by 2050 and then level off over the next half-century. How can the transition to a stabilizing population also be a transition to sustainability? How can science and technology help to ensure that human needs are met while the planet's environment is nurtured and restored? Our Common Journey examines these momentous questions to draw strategic connections between scientific research, technological development, and societies' efforts to achieve environmentally sustainable improvements in human well being. The book argues that societies should approach sustainable development not as a destination but as an ongoing, adaptive learning process. Speaking to the next two generations, it proposes a strategy for using scientific and technical knowledge to better inform future action in the areas of fertility reduction, urban systems, agricultural production, energy and materials use, ecosystem restoration and biodiversity conservation, and suggests an approach for building a new research agenda for sustainability science. Our Common Journey documents large-scale historical currents of social and environmental change and reviews methods for "what if" analysis of possible future development pathways and their implications for sustainability. The book also identifies the greatest threats to sustainabilityâ€"in areas such as human settlements, agriculture, industry, and energyâ€"and explores the most promising opportunities for circumventing or mitigating these threats. It goes on to discuss what indicators of change, from children's birth-weights to atmosphere chemistry, will be most useful in monitoring a transition to sustainability.

“Crows and people share similar traits and social strategies. To a surprising extent, to know the crow is to know ourselves.”—from the Preface From the cave walls at Lascaux to the last painting by Van Gogh, from the works of Shakespeare to those of Mark Twain, there is clear evidence that crows and ravens influence human culture. Yet this influence is not unidirectional, say the authors of this fascinating book: people profoundly influence crow culture, ecology, and evolution as well. John Marzluff and Tony Angell examine the often surprising ways that crows and humans interact. The authors contend that those interactions reflect a process of “cultural coevolution.” They offer a challenging new view of the human-crow dynamic—a view that may change our thinking not only about crows but also about ourselves. Featuring more than 100 original drawings, the book takes a close look at the influences people have had on the lives of crows throughout history and at the significant ways crows have altered human lives. In the Company of Crows and Ravens illuminates the entwined histories of crows and people and concludes with an intriguing discussion of the crow-human relationship and how our attitudes toward crows may affect our cultural trajectory.

The Hawaiian Crow, or 'Alala, once an inhabitant of large forested areas of Hawaii, is now found only in the wild in a relatively small area of the central Kona coast. The decline of the 'Alala is part of a larger phenomenon of reduction and extinction of forest birds throughout Polynesia that has been associated with human colonization. It is a symptom of underlying ecological problems. In this book, a committee of experts in ornithology, captive propagation, conservation biology, population genetics, and ecology analyzes existing data about the 'Alala and details its findings, conclusions, and recommendations concerning recovery efforts for this endangered bird.

Many of the world's leading conservation and population biologists evaluate what has become a key tool in estimating extinction risk and evaluating potential recovery strategies - population viability analysis, or PVA.

Crows can be found almost everywhere that people are, from tropical islands to deserts and arctic forests, from densely populated cities to suburbs and farms. Across these diverse landscapes, many species of crow are doing well: their intelligent and adaptive ways of life have allowed them to thrive amid human-driven transformations. Indeed, crows are frequently disliked for their success, seen as pests, threats, and scavengers on the detritus of human life. But among the vast variety of crows, there are also critically endangered species that are barely hanging on to existence, some of them the subjects of passionate conservation efforts. The Wake of Crows is an exploration of the entangled lives of humans and crows. Focusing on five key sites, Thom van Dooren asks how we might live well with crows in a changing world. He explores contemporary possibilities for shared life emerging in the context of ongoing processes of globalization, colonization, urbanization, and climate change. Moving among these diverse contexts, this book tells stories of extermination and extinction alongside fragile efforts to better understand and make room for other species. Grounded in the careful work of paying attention to particular crows and their people, The Wake of Crows is an effort to imagine and put into practice a multispecies ethics. In so doing, van Dooren explores some of the possibilities that still exist for living and dying well on this damaged planet.