Geology of Death Valley National Park


Book Description

Explorea the geologic history, landforms, and geologic processes of Death Valley, which is the hottest area in the US and also features many rock types. Maps and photographs accompany the descriptions of rock types, mining, faults, and topography.




Emerging Frontiers


Book Description

Founded in Indian Territory in 1858, the Sisters of Charity of Leavenworth met, a century later, challenges of a new frontier in the church's call to adapt to modern circumstances and in their own awareness of deepening social and ecclesial needs. For three decades, sisters struggled with conditions that threatened unity: issues of governance, demands of professional training, diverse backgrounds, differing experience of communal life, developing theology of religious vows. Diminishing numbers coupled with need for leadership led to new institutional roles and new forms of ministry. Emerging Frontiers records the struggle and its outcome. A common past and determination to stay together marked the long search for a renewed common vision. A new century brought re-dedication to a Vincentian heritage and far-flung partnerships in the mission given by Jesus Christ to his people. Commitment to those in need, especially women and children; fidelity to the church; faithful relationship with those of means and good will, and with the earth; transition to sponsorship of institutional ministries, many now administered by lay women and men; solidarity with all who stand for justice and peace: this was the resolution of a renewed Community whose story is told here.




Fire and Climatic Change in Temperate Ecosystems of the Western Americas


Book Description

Both fire and climatic variability have monumental impacts on the dynamics of temperate ecosystems. These impacts can sometimes be extreme or devastating as seen in recent El Nino/La Nina cycles and in uncontrolled fire occurrences. This volume brings together research conducted in western North and South America, areas of a great deal of collaborative work on the influence of people and climate change on fire regimes. In order to give perspective to patterns of change over time, it emphasizes the integration of paleoecological studies with studies of modern ecosystems. Data from a range of spatial scales, from individual plants to communities and ecosystems to landscape and regional levels, are included. Contributions come from fire ecology, paleoecology, biogeography, paleoclimatology, landscape and ecosystem ecology, ecological modeling, forest management, plant community ecology and plant morphology. The book gives a synthetic overview of methods, data and simulation models for evaluating fire regime processes in forests, shrublands and woodlands and assembles case studies of fire, climate and land use histories. The unique approach of this book gives researchers the benefits of a north-south comparison as well as the integration of paleoecological histories, current ecosystem dynamics and modeling of future changes.




The California Nitrogen Assessment


Book Description

Nitrogen is indispensable to all life on Earth. However, humans now dominate the nitrogen cycle, and nitrogen emissions from human activity have real costs: water and air pollution, climate change, and detrimental effects on human health, biodiversity, and natural habitats. Too little nitrogen limits ecosystem processes, while too much nitrogen transforms ecosystems profoundly. The California Nitrogen Assessment is the first comprehensive account of nitrogen flows, practices, and policies for California, encompassing all nitrogen flows—not just those associated with agriculture—and their impacts on ecosystem services and human wellbeing. How California handles nitrogen issues will be of interest nationally and internationally, and the goal of the assessment is to link science with action and to produce information that affects both future policy and solutions for addressing nitrogen pollution. This book also provides a model for application of integrated ecosystem assessment methods at regional and state (subnational) levels.







Ecological Engineering


Book Description

Less expensive and more environmentally appropriate than conventional engineering approaches, constructed ecosystems are a promising technology for environmental problem solving. Undergraduates, graduate students, and working professionals need an introductory text that details the biology and ecology of this rapidly developing discipline, known as




History of Texas


Book Description




Recollections of "Tucson Operations"


Book Description

A personal account of the evolution of millimeter-wave astronomy at the US National Radio Astronomy Observatory. The author recounts the behind-the-scenes activities of the staff from the beginnings at Kitt Peak to the closing of the Tuscon offices.




Endangered Species Act Consultation Handbook


Book Description

The Handbook provides internal guidance and establishes national policy for conducting consultation and conferences pursuant to section 7 of the Endangered Species Act of 1973, as amended. The purpose of the Handbook is to promote efficiency and nationwide consistency within and between the Services. The Handbook addresses the major consultation processes, including informal, formal, emergency, and special consultations, and conferences.