Download or read book Sagehen Creek Field Station Planning and Site Design written by Martha Lee Berner and published by . This book was released on 1985 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sagehen Creek Field Station written by Aldo Starker Leopold and published by . This book was released on 1971 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book UC s Sagehen Creek Field Station at Fifty written by and published by . This book was released on 2006 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interviews with some of the first researchers at Sagehen, with anecdotes about A. Starker Leopold, initiator of the station's wildlife program and Paul Robert Needham, who launched the fisheries program.
Download or read book Distribution and Abundance of Snags in the Sagehen Creek Basin California written by and published by . This book was released on 1986 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The distribution of snags by tree species in the eastern Sierra Nevada of California generally reflects the associated timber type. Where present, however, lodgepole pine (Pinus conrorta Dougl.) forms a large proportion of the snags present. Few snags of any species were present in the Jeffrey pine (P. jeffrryi Grev. & Balf. in A. Murr.) timber type in a study at Sagehen Creek Basin, in Nevada County. Simple regression analysis showed weak but significant relationships between snag density and canopy height, canopy cover, and slope. Multiple regression analysis were also weak, but revealed that snag density increased as size of natural openings increased. These results indicate that most snags in the study area were formed by the action of water (i.e., meadows, creeks) and fire. Thus, managers could concentrate snag surveys (and protective measures) near water and natural openings. Management of riparian areas is especially important because such areas are usually readily accessible to the public (e.g., fuelwood cutters). Aerial photography should be useful in locating areas of highest snag density; regression analysis appears to be of marginal usefulness.
Download or read book Stability and Change in Minerotrophic Peatlands Sierra Nevada of California and Nevada written by James W. Bartolome and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Minerotrophic peatlands or fens in California's Sierra Nevada are small wet meadows surrounded by mixed conifer forest. The dynamics of vegetation change at the meadow edge and the ages and development of fens were investigated, in the Sagehen Creek Basin near Truckee, California, through the use of radiocarbon dating of peat, pollen studies, examination of processes of peat development and accumulation, stand age analysis of trees around peatlands, and evaluation of tree-ring variation. These approaches were used to evaluate both short- and long-term changes. Fens varied in age from more than 8000 years toless than 1000years old. Results suggest that overall fen development proceeds rapidly, with peat buildup dependent upon adequate moisture supply. During fen development trees repeatedly invade and retreat from the fen edges. The timing of invasions appears unrelated to events such as human disturbance and climatic change. Instead, changes are most likely to result from alterations in groundwater supply in interaction with tree establishment, longevity, and water uptake. Little evidence was found that accepted successional models which emphasize predictable and gradual vegetational development apply to fens in the Sagehen Basin.
Download or read book The Environmental Legacy of the UC Natural Reserve System written by Peggy L. Fiedler and published by Univ of California Press. This book was released on 2013-02-04 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book tells the story of how a few forward-thinking UC faculty, who'd had their research plots and teaching spots destroyed by development and habitat degradation, devised a way to save representative examples of many of California's major ecosystems.
Download or read book Guide to Biological Field Stations written by Organization of Biological Field Stations and published by . This book was released on 1992 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beetles of Western North America written by Arthur V. Evans and published by Princeton University Press. This book was released on 2021-09-28 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Beetles are incredibly diverse, with over 23,000 named species in the United States alone. They take on all hues, shapes, and sizes, from the iridescent green of the Western Cedar Borer to the striking red of the Rose Curculio. They can also be found in a wide range of habitats, from cold mountain streams to scorching deserts. Similar to its eastern counterpart, Beetles of Eastern North America, this book is a comprehensive guide to the beetles of the US and Canada that can be found west of the Continental Divide. It covers over 1,400 species across 130 different families. The book begins with a general introduction to beetles, with sections on morphology, behavior and natural history, and conservation, as well as information on how to find and photograph beetles. After the introduction, there is an illustrated key to common beetle families. The family descriptions include information on natural history, collection, identification, common genera and species, and similar families"--
Download or read book General Technical Report RM written by and published by . This book was released on 1980 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Multivariate Statistics in Studies of Wildlife Habitat written by David E. Capen and published by . This book was released on 1981 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Real World Wireless Sensor Networks written by Koen Langendoen and published by Springer Science & Business Media. This book was released on 2013-12-19 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book presents the results of the 5th Workshop on Real-world Wireless Sensor Networks (REALWSN). The purpose of this workshop was to bring together researchers and practitioners working in the area of sensor networks, with focus on real-world experiments or deployments of wireless sensor networks. Included were, nonetheless, emerging forms of sensing such as those that leverage smart phones, Internet of Things, RFIDs, and robots. Indeed, when working with real-world experiments or deployments, many new or unforeseen issues may arise: the network environment may be composed of a variety of different technologies, leading to very heterogeneous network structures; software development for large scale networks poses new types of problems; the performance of prototype networks may differ significantly from the deployed system; whereas actual sensor network deployments may need a complex combination of autonomous and manual configuration. Furthermore, results obtained through simulation are typically not directly applicable to operational networks; it is therefore imperative for the community to produce results from experimental research. The workshop collected the state of the art in emerging and current research trends dealing with Real-world Wireless Sensor Networks, with the aim of representing a stepping stone for future research in this field.
Download or read book Biodiversity written by National Academy of Sciences/Smithsonian Institution and published by National Academies Press. This book was released on 1988-01-01 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book for scientists and nonscientists alike calls attention to a most urgent global problem: the rapidly accelerating loss of plant and animal species to increasing human population pressure and the demands of economic development. Based on a major conference sponsored by the National Academy of Sciences and the Smithsonian Institution, Biodiversity creates a systematic framework for analyzing the problem and searching for possible solutions.
Download or read book Evolutionary Differentiation in Morphology Vocalizations and Allozymes Among Nomadic Sibling Species in the North American Red Crossbill Loxia Curvirostra Complex written by Jeffrey G. Groth and published by Univ of California Press. This book was released on 1993-08-16 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highly variable North American red crossbill complex has presented one of the most controversial problems in avian systematics. Although crossbills wander nomadically and breed all year, they have not become homogenized in bill and body size. This study suggests that this crossbill complex contains several distinctive sibling species that breed sympatrically and show ecological differences.
Download or read book Tahoe National Forest N F Land and Resource s Management Plan LRMP written by and published by . This book was released on 1990 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service Experimental Forests and Ranges written by Deborah C. Hayes and published by Springer. This book was released on 2014-07-22 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: USDA Forest Service Experimental Forests and Ranges (EFRs) are scientific treasures, providing secure, protected research sites where complex and diverse ecological processes are studied over the long term. This book offers several examples of the dynamic interactions among questions of public concern or policy, EFR research, and natural resource management practices and policies. Often, trends observed – or expected -- in the early years of a research program are contradicted or confounded as the research record extends over decades. The EFRs are among the few areas in the US where such long-term research has been carried out by teams of scientists. Changes in society’s needs and values can also redirect research programs. Each chapter of this book reflects the interplay between the ecological results that emerge from a long-term research project and the social forces that influence questions asked and resources invested in ecological research. While these stories include summaries and syntheses of traditional research results, they offer a distinctly new perspective, a larger and more complete picture than that provided by a more typical 5-year study. They also provide examples of long-term research on EFRs that have provided answers for questions not even imagined at the time the study was installed.
Download or read book Tahoe National Forest N F and Lake Tahoe Management Unit Eight Eastside Rivers Wild and Scenic River s WSR Study written by and published by . This book was released on 1998 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Service Research and Development written by Peter Stine and published by . This book was released on 2016 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
