Act III in Patagonia : people and wildlife / / William Conway

• Record Nr.: UNINA9910956320403321
• Autore: Conway William <1929->
• Pubbl/distr/stampa: Washington, : Island Press/Shearwater Books, c2005
• ISBN: 9781597265898; 1597265896; 9781429495141; 1429495146
• Edizione: [1st ed.]
• Descrizione fisica: 1 online resource (385 p.)
• Disciplina: 333.95/416/09827
• Soggetti: Animals - Patagonia (Argentina and Chile); Human-animal relationships - Patagonia (Argentina and Chile); Patagonia (Argentina and Chile)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Bibliographic Level Mode of Issuance: Monograph
• Nota di bibliografia: Includes bibliographical references (p. 311-326) and index.
• Nota di contenuto: Intro -- Title Page -- Copyright Page -- Table of Contents -- Acknowledgments -- Epigraph -- Introduction -- Prelude -- Counting Elephant Seals on Peninsula Valdes -- Subplots and Stage Directions in Argentina -- A Patagonian Conservationist in the Campo -- Act I: 12,000 Years in Patagonia -- Act II: Hunting's High Tide -- Act III: The Road to Conservation -- STEPPE AND ALTIPLANO -- 1. The Camel and the Sheep -- 2. Mr. Darwin's Ostrich and the Green-Egged Martineta -- 3. A Giant Monogamous Mouse -- 4. The Parrot Metropolis of Rio Negro -- 5. The Tortoise and the Bus Driver -- 6. The Condor, the Puma, the Fox, and the Aliens -- 7. The Altiplano and the Flamingos -- 8. A Once and Future Patagonian Steppe -- COASTAL CHRONICLES -- 1. The Doctor and the Sea Lions -- 2. Incredibly Deep-Diving Super Seal -- 3. Adventures of a Billion Dollar Bird -- 4. Penguin Lives and Principles -- 5. The Critical Colony -- 6. Plans for Coast and Sea -- SEA AND SKY -- 1. The Toothfish, the Hake, and the Squid -- 2. Orcas, Right Whales, and Economics -- 3. Report from a Sea and Sky Outpost -- The Scene Ahead -- Notes -- Suggested Reading -- Index.
• Sommario/riassunto: Patagonia. The name connotes the exotic and a distance that seems nearly mythical. Tucked toward the toe of South America, this largely ; unsettled landscape is among the most varied and breathtaking in the world-aching in its beauty as it sweeps from the Andes through broad, arid steppes to pristine beaches and down to a famously violent sea. It is also home to a vast array of rare wildlife as diverse and fascinating as the region itself. Act III in Patagonia is the first book to take an in-depth look at wildlife and human interaction in this spectacular area of the world. Written by William Conway, former president of the Wildlife Conservation Society, the book is unique in its concentration on the long Patagonian shoreline--populated by colorful cormorants, penguins, elephant seals, dolphins, sea lions, and numerous species of whale--and an increasing number of human beings. Threatened by overfishing, invasive species, artificially abundant predators, and overgrazing, the Southern Cone of Patagonia is now the scene of a little-known conservation drama distinguished by the efforts of a dedicated group of local and foreign scientists determined to save one of the Earth's least-inhabited places. From tracking elephant seals in the Atlantic to following flamingos in the Andes, Act III in Patagonia takes readers to the sites where real-life field science is taking place. It further illuminates the ecology of the region through a history that reaches from the time of the Tehuelche Indians known by Magellan, Drake, and Darwin to the present. Conway has helped to establish more than a dozen wildlife reserves in South America and is thus able not only to tell Patagonia's history, but to address its future. He brings a wealth of knowledge about Patagonia and its wildlife and responds to the difficult questions of how the interests of humans and wildlife are best balanced. He tells of the exciting collaborations among the Wildlife Conservation Society and its national and provincial partners to develop region-wide programs to save wildlife in steppes, coast, and sea, demonstrating that, with public support, there is hope for this stunning corner of the world. Though singular in their details, the conservation efforts Conway spotlights are a microcosm of what is happening in dozens of sites around the world.

Ground water models : scientific and regulatory applications / / Water Science and Technology Board, Committee on Ground Water Modeling Assessment, Commission of Physical Sciences, Mathematics, and Resources, National Research Council

• Record Nr.: UNINA9910957775003321
• Pubbl/distr/stampa: Washington, D.C. : , : National Academy Press, , 1990
• ISBN: 0-585-19267-7
• Edizione: [1st ed.]
• Descrizione fisica: 1 online resource (xv, 303 pages) : illustrations
• Disciplina: 551.49/01/5118
• Soggetti: Groundwater - Mathematical models; Water-supply - Mathematical models; Groundwater flow; Liability for water pollution damages
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Bibliographic Level Mode of Issuance: Monograph
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: GROUND WATER MODELS -- Copyright -- Preface -- Contents -- Overview, Conclusions, and Recommendations -- OVERVIEW -- CONCLUSIONS AND RECOMMENDATIONS -- Models and Subsurface Processes -- Conclusions -- Models and Decisionmaking -- Conclusions -- Recommendations -- Maintaining Scientific Integrity -- Conclusions -- Recommendations -- Recommendations for the Future -- 1 Introduction -- THE GROWTH IN THE USE OF MODELS -- REFERENCES -- 2 Modeling of Processes -- INTRODUCTION -- Ground Water Flow -- Multiphase Flow -- Dissolved Contaminant Transport -- Advection -- Diffusion -- Dispersion -- Radioactive Decay -- Sorption -- Precipitation and Dissolution -- Acid/Base Reactions -- Complexation -- Hydrolysis/Substitution -- Redox Reactions -- Biological Transformations -- WHAT IS A MODEL? -- Governing Equations -- Boundary and Initial Conditions and Parameter Values -- Solving Flow and Transport Equations -- REFERENCES -- 3 Flow Processes -- INTRODUCTION -- SATURATED CONTINUUM FLOW -- State of the Art -- Implications for the Use of Saturated Continuum Flow Models in Decisionmaking -- Spatial Dimensionality -- Boundary ; Conditions -- Transient Versus Steady State -- Discretization -- Velocity Computation -- Parameter Values -- FLOW IN THE UNSATURATED ZONE -- Characterization of the Unsaturated Zone -- CONCEPTS OF WATER FLOW IN THE UNSATURATED ZONE -- FRACTURE FLOW -- Theory of Flow in Fractures -- Strategies for Modeling -- ISSUES IN MODELING -- A Fractured Medium as a Continuum -- Computational Constraints on Discrete Network Models -- Uncertainty in Establishing the Network Geometry -- Adequacy of Modeling Technology -- REFERENCES -- 4 Transport -- INTRODUCTION -- TRANSPORT OF CONSERVATIVE SOLUTES -- NONCONSERVATIVE SOLUTES -- Equilibrium and Kinetic Models of Reactions -- Abiotic Reactions -- Geochemical Models.; Incorporation of Abiotic Transformations into Solute Transport Models -- Phase Transfers -- Assessment of Kinetics -- Incorporation of Phase Transfers into Solute Transport Models -- Biological Reactions -- Microbiological Kinetics -- Incorporation of Biological Processes into Solute Transport Models -- TRANSPORT IN THE UNSATURATED ZONE -- Unsaturated Flow and Transport in Structured Soils -- MULTIPHASE TRANSPORT -- Seawater Intrusion -- Organic Fluid Contamination -- Governing Equations for Multiphase Flow -- Parameters and Initial and Boundary Conditions for Multiphase Flow -- Problems Associated with Multiphase Flow -- REFERENCES -- 5 Experience With Contaminant Flow Models in the Regulatory System -- INTRODUCTION -- U.S. NUCLEAR REGULATORY COMMISSION REGULATIONS AND GUIDANCE -- U.S. ENVIRONMENTAL PROTECTION AGENCY REGULATIONS AND GUIDANCE -- Superfund -- Law and Regulations -- Guidance -- Resource Conservation and Recovery Act -- Law and Regulations -- Guidance -- Underground Injection Control (UIC) Program -- Law and Regulations -- Guidance -- Conclusion -- SELECTED CASE STUDIES -- Vertical-Horizontal Spread (VHS) Model Background -- Model -- Application at a Particular Site -- Regulatory Context -- Discussion -- Madison Aquifer-Well Withdrawals from a Deep Regional Aquifer -- Background -- Initial Modeling Studies -- Initial Results -- Other Model Studies -- Regulatory Context -- Discussion -- Snake River Plain-Point Source of Contamination -- Background -- Hydrogeologic Setting -- Model Formulation -- Results and Conclusion -- Discussion -- Tucson Airport -- Background -- Hydrogeologic Setting -- Approach -- Model to Assess Relative Contributions -- Model of Source Contributions -- Results and Conclusions -- Regulatory Context -- Discussion -- S-Area, Niagara Falls, New York -- Background -- Site Conditions -- Model Formulation.; Results and Conclusions -- Regulatory Context -- Discussion -- NOTES -- BIBLIOGRAPHY -- 6 Issues in the Development and Use of Models -- INTRODUCTION -- THE PEOPLE PROBLEM -- UNCERTAINTY AND RELIABILITY -- The Sampling Process -- Process and Parameter Identification -- Input Estimation -- Model Validation and Accuracy Assessment -- ASSURING THE QUALITY OF MODELS -- QUALITY ASSURANCE PROCEDURES FOR CODE DEVELOPMENT -- Verification of Program Structure and Code -- Model Validation -- Recordkeeping -- Software Documentation -- Scientific and Technical Reviews -- MODEL APPLICATION -- BIBLIOGRAPHY -- 7 Research Needs -- INTRODUCTION -- USE OF MODELS -- SCIENTIFIC TRENDS AND RESEARCH -- Basic Understanding and Process Models -- Process Models -- Multiphase Fluid Flow and Transport Models -- Linking Geochemical and Physical Transport Models -- Probabilistic Methods -- Translation of State of the Art to State of the Practice -- Field-Scale Code Developments -- Validation or Accuracy Estimation Methods -- Advances in Computer Hardware and Numerical Methods -- Artificial ; Intelligence and Expert Systems -- Some Existing Applications -- Expert Systems in the Future -- Interdisciplinary Efforts -- POLICY TRENDS AND SUPPORT FOR RESEARCH -- REFERENCES -- Appendix: Biographical Sketches of Committee Members -- Index.
• Sommario/riassunto: The discovery of toxic pollution at Love Canal brought ground water contamination to the forefront of public attention. Since then, ground water science and modeling have become increasingly important in evaluating contamination, setting regulations, and resolving liability issues in court. A clearly written explanation of ground water processes and modeling, Ground Water Models focuses on the practical aspects of model application. It: examines the role of models in regulation, litigation, and policy development; explains ground water processes and describes specific applications for models; presents emerging technologies; and offers specific recommendations for better use of ground water science in policy formation.