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Author : Bruce Leigh Welch
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.3/5 (243 download)
Download or read book Identifying Proxy Sets in Multiple Linear Regression written by Bruce Leigh Welch and published by . This book was released on 1994 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kathleen Geier-Hayes
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (319 download)
Download or read book Natural Regeneration in Two Central Idaho Grand Fir Habitat Types written by Kathleen Geier-Hayes and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David N. Cole
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.F/5 ( download)
Download or read book Changes on Trails in the Selway-Bitterroot Wilderness, Montana, 1978-89 written by David N. Cole and published by . This book was released on 1991 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 242 pages
Book Rating : 4.3/5 (91 download)
Download or read book Research Paper INT. written by and published by . This book was released on 1993 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott Ferson
Publisher : Springer Science & Business Media
ISBN 13 : 0387226486
Total Pages : 322 pages
Book Rating : 4.3/5 (872 download)
Download or read book Quantitative Methods for Conservation Biology written by Scott Ferson and published by Springer Science & Business Media. This book was released on 2006-05-09 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative methods are needed in conservation biology more than ever as an increasing number of threatened species find their way onto international and national “red lists. ” Objective evaluation of population decline and extinction probability are required for sound decision making. Yet, as our colleague Selina Heppell points out, population viability analysis and other forms of formal risk assessment are underused in policy formation because of data uncertainty and a lack of standardized methodologies and unambiguous criteria (i. e. , “rules of thumb”). Models used in conservation biology range from those that are purely heuristic to some that are highly predictive. Model selection should be dependent on the questions being asked and the data that are available. We need to develop a toolbox of quantitative methods that can help scientists and managers with a wide range of systems and that are subject to varying levels of data uncertainty and environmental variability. The methods outlined in the following chapters represent many of the tools needed to fill that toolbox. When used in conjunction with adaptive management, they should provide information for improved monitoring, risk assessment, and evaluation of management alternatives. The first two chapters describe the application of methods for detecting trends and extinctions from sighting data. Presence/absence data are used in general linear and additive models in Chapters 3 and 4 to predict the extinction proneness of birds and to build habitat models for plants.
Author :
Publisher :
ISBN 13 :
Total Pages : 932 pages
Book Rating : 4.3/5 (243 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1995 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1100 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Muthukumara Mani
Publisher : World Bank Publications
ISBN 13 : 1464811563
Total Pages : 120 pages
Book Rating : 4.4/5 (648 download)
Download or read book South Asia's Hotspots written by Muthukumara Mani and published by World Bank Publications. This book was released on 2018-07-12 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: South Asia is particularly vulnerable to climate change. Most previous studies have focused on the projected impacts of sea-level rise or extreme weather - droughts, floods, heatwaves and storm surges. This study adds to that knowledge by identifying the impacts of long-term changes in the climate †“ rising temperatures and changes in precipitation patterns †“ on living standards. It does so by first building an understanding of the relationship between current climate conditions and living standards across South Asia. The study also identifies the set of climate models that are best suited for projecting long-term changes in climate across South Asia. This novel understanding of living standards and climate change is then combined to project impacts of long-term changes in climate on living standards in South Asia. The study finds that higher temperatures will reduce living standards for most of South Asia, with the severity impacts depending on future global greenhouse gas emissions. The study projects “hotspots†?, which are locations where long-term changes in climate will have negative impacts on living standards. Many hotspots are in locations that hitherto have not been identified as particularly vulnerable to climate change. Moreover, hotspots have distinguishing features that vary from country to country. This detailed assessment provides a mosaic of information that enriches our understanding of how climate change will impact people and which populations are most vulnerable. The report also provides guidance on the kinds of actions are most likely to reduce impacts of climate change in each country. The study is a major contribution to our understanding of how increasing temperatures and changing precipitation patterns interact with social and economic structures at a fine granular level across South Asia.
Author : Fernando Álvarez
Publisher : Springer
ISBN 13 : 3030112624
Total Pages : 231 pages
Book Rating : 4.0/5 (31 download)
Download or read book Animal Diversity and Biogeography of the Cuatro Ciénegas Basin written by Fernando Álvarez and published by Springer. This book was released on 2019-05-09 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume investigates the contemporary fauna that inhabit the Cuatro Ciénegas Basin. Divided into 15 chapters, it addresses and describes their diversity, taxonomic and biogeogaphic affinities, and ecological characteristics. The Cuatro Ciénegas Valley is a unique oasis in the south-central region of the State of Coahuila, part of the Sonoran Desert, in Mexico. Several clues, specially derived from the study of the microbiota, suggest a very ancient origin of the valley and its permanence through time. This condition had promoted a high level of endemism and led to unique interactions between the resident species.
Author : Alejandro Casas
Publisher : Frontiers Media SA
ISBN 13 : 2889630471
Total Pages : 284 pages
Book Rating : 4.8/5 (896 download)
Download or read book Ecology and Evolution of Plants under Domestication in the Neotropics written by Alejandro Casas and published by Frontiers Media SA. This book was released on 2019-09-25 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Neotropical area is a main setting of the earliest experiences of domestication ofplants, and evolutionary processes guided by humans, which continue being active inthe area. Studies comprised in this Research Topic show a general panorama aboutsimilarities and particularities of processes of domestication for different plant groupsand regions, some of them illustrate how the domestication processes originated anddiffused, how landscape domestication has operated and continues being practicedand others discuss some of the main challenges for designing policies for biosafetyand conservation of plant genetic resources. It is an attempt to identify main topicsfor research on evolution under domestication, and opportunities that researcherscan find in the Neotropics to understand how and why these processes occurredin the past and present.
Author :
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (319 download)
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sam Cushman
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.3/5 ( download)
Download or read book Research Agenda for Integrated Landscape Modeling written by Sam Cushman and published by . This book was released on 2007 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliable predictions of how changing climate and disturbance regimes will affect forest ecosystems are crucial for effective forest management. Current fire and climate research in forest ecosystem and community ecology offers data and methods that can inform such predictions. However, research in these fields occurs at different scales, with disparate goals, methods, and context. Often results are not readily comparable among studies and defy integration. We discuss the strengths and weaknesses of three modeling paradigms: empirical gradient models, mechanistic ecosystem models, and stochastic landscape disturbance models. We then propose a synthetic approach to multi-scale analysis of the effects of climatic change and disturbance on forest ecosystems. Empirical gradient models provide an anchor and spatial template for stand-level forest ecosystem models by quantifying key parameters for individual species and accounting for broad-scale geographic variation among them. Gradient imputation transfers predictions of fine-scale forest composition and structure across geographic space. Mechanistic ecosystem dynamic models predict the responses of biological variables to specific environmental drivers and facilitate understanding of temporal dynamics and disequilibrium. Stochastic landscape dynamics models predict frequency, extent, and severity of broad-scale disturbance. A robust linkage of these three modeling paradigms will facilitate prediction of the effects of altered fire and other disturbance regimes on forest ecosystems at multiple scales and in the context of climatic variability and change.
Author :
Publisher :
ISBN 13 :
Total Pages : 602 pages
Book Rating : 4.3/5 (91 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Michael Scott
Publisher : Island Press
ISBN 13 : 9781597263054
Total Pages : 940 pages
Book Rating : 4.2/5 (63 download)
Download or read book Predicting Species Occurrences written by J. Michael Scott and published by Island Press. This book was released on 2002-02 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predictions about where different species are, where they are not, and how they move across a landscape or respond to human activities -- if timber is harvested, for instance, or stream flow altered -- are important aspects of the work of wildlife biologists, land managers, and the agencies and policymakers that govern natural resources. Despite the increased use and importance of model predictions, these predictions are seldom tested and have unknown levels of accuracy.Predicting Species Occurrences addresses those concerns, highlighting for managers and researchers the strengths and weaknesses of current approaches, as well as the magnitude of the research required to improve or test predictions of currently used models. The book is an outgrowth of an international symposium held in October 1999 that brought together scientists and researchers at the forefront of efforts to process information about species at different spatial and temporal scales. It is a comprehensive reference that offers an exhaustive treatment of the subject, with 65 chapters by leading experts from around the world that: review the history of the theory and practice of modeling and present a standard terminology examine temporal and spatial scales in terms of their influence on patterns and processes of species distribution offer detailed discussions of state-of-the-art modeling tools and descriptions of methods for assessing model accuracy discuss how to predict species presence and abundance present examples of how spatially explicit data on demographics can provide important information for managers An introductory chapter by Michael A. Huston examines the ecological context in which predictions of species occurrences are made, and a concluding chapter by John A. Wiens offers an insightful review and synthesis of the topics examined along with guidance for future directions and cautions regarding misuse of models. Other contributors include Michael P. Austin, Barry R. Noon, Alan H. Fielding, Michael Goodchild, Brian A. Maurer, John T. Rotenberry, Paul Angermeier, Pierre R. Vernier, and more than a hundred others.Predicting Species Occurrences offers important new information about many of the topics raised in the seminal volume Wildlife 2000 (University of Wisconsin Press, 1986) and will be the standard reference on this subject for years to come. Its state-of-the-art assessment will play a key role in guiding the continued development and application of tools for making accurate predictions and is an indispensable volume for anyone engaged in species management or conservation.
Author : Zhang Chengjun
Publisher : Frontiers Media SA
ISBN 13 : 2832504035
Total Pages : 269 pages
Book Rating : 4.8/5 (325 download)
Download or read book Lake Records of Environmental and Climate Change on the Tibetan Plateau written by Zhang Chengjun and published by Frontiers Media SA. This book was released on 2022-11-07 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nan Wu
Publisher : Frontiers Media SA
ISBN 13 : 2889716864
Total Pages : 161 pages
Book Rating : 4.8/5 (897 download)
Download or read book Gastrointestinal Immunity and Crosstalk with Internal Organs in Fish written by Nan Wu and published by Frontiers Media SA. This book was released on 2021-11-25 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Patrick Deelen
Publisher : Patrick Deelen
ISBN 13 : 9403415991
Total Pages : 196 pages
Book Rating : 4.4/5 (34 download)
Download or read book Multi-omics strategies for detecting gene-environment interactions written by Patrick Deelen and published by Patrick Deelen. This book was released on 2019-05-06 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our DNA, 3 billion letters long, is the blueprint of life. People differ from each other in around 1% of these letters. However, it is largely unknown which of these differences cause disease, nor how exactly changes in DNA ultimately lead to disease. In my PhD research I contributed to the detection of these genetic risk factors and studied how these DNA changes actually disrupt the correct functioning of cells. Using the "Genome of the Netherlands" project results, in which the BBMRI-NL consortium fully mapped the DNA of 250 Dutch families, I was able to improve genetic research in other groups of people and thereby better detect genetic risk factors. I then looked at how these DNA changes disrupt individual cells in a large number of people participating in various Dutch bio-banks such as Lifelines. By looking at DNA, RNA, epigenetics and proteins at the same time, I was able to discover many genetic risk factors, which biological processes they disrupt, and which ones offer starting points for the development of new medicines that can repair these disrupted processes. In addition, through the large-scale re-use of RNA data, I was able to map how many genes relate together and to disease. With these big data analyses, I subsequently developed a new algorithm that is now being used to make a diagnosis more quickly in people with a serious illness. With my PhD research, I contributed to the immediate improvement of patient care and collected new knowledge that could help in the longer term with the development of new medicines.
