Download or read book Environmental Factors Associated with Long term Trends of Mountain Sucker Populations in the Black Hills and an Assessment of Their Thermal Tolerance written by Luke D. Schultz and published by . This book was released on 2011 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishes of the Dakotas written by Kathryn E. Schlafke and published by Springer Nature. This book was released on with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of urban development on stream ecosystems in nine metropolitan study areas across the United States written by James F. Coles and published by . This book was released on 2012 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Large scale Multi seasonal Habitat Prioritization and an Analysis of Structural Connectivity for the Conservation of Greater Sage grouse in Wyoming written by Anushika De Silva and published by . This book was released on 2015 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Habitat loss is widely recognized as the primary cause of global declines in biodiversity and is linked to human disturbances through widespread land-use changes (Menon et al., 2001). As a consequence, wildlife species must persist on landscapes that are greatly modified and fragmented (Moilanen et al., 2005). Disruptions affecting the structural connectivity can hinder ecological flows of energy, nutrients and the natural dispersal of species across the landscape. Therefore, in order to conserve wildlife populations, we are challenged with securing areas where species are most likely to survive in the long run while maintaining habitat connectivity to facilitate natural ecological processes and meta-population dynamics (Gardner et al., 1993; Early and Thomas, 2007). Identifying conservation priority areas is an essential step in wildlife conservation planning. In order to achieve long term conservation success amid increasing developments and environmental degradation, we must aim for biologically and ecologically comprehensive and justifiable approaches that take multiple factors into consideration when defining conservation priority areas. In addition, when prioritizing the landscape, we must also account for the variations in habitat use caused by seasonal changes throughout the annual cycle in order to protect indispensable habitat across all seasons and life-stages. Thus, my first objective was to develop an annual habitat prioritization for greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse) in Wyoming, USA by combining nesting, summer and winter habitat selection models in an ecologically meaningful way using a quantitative spatial prioritization tool. I assessed the capacity of Wyoming's current sage-grouse protected areas for capturing priority areas across the full annual cycle in order to quantify the importance of a multi-seasonal (i.e., annual) habitat prioritization. While, the annual habitat prioritized substantial as well as very similar fractions of the best habitat from each individual season, results indicated that the protected areas did not account for 52% of the top 25% of best annual habitat. As expected, the individual seasonal analysis confirmed that the protected areas contained more nesting priority habitat and failed to capture substantial fractions of summer and winter priority habitat. My second objective was to model connectivity between sage-grouse lek sites by applying circuit theory across the annual habitat model. I calculated the correlation between connectivity and habitat use across the annual and nesting habitat selection models to test if greater connectivity resulted in larger and more stable populations independent of habitat. I examined these trends across years of high population as well as years of low population. The structural connectivity of the landscape was not strongly correlated with the relative probability of habitat use across both nesting and annual habitat models (r = 0.3). Increasing connectivity was associated with increasing population sizes at leks and decreasing variability in lek counts; thus signifying that structural connectivity has a positive influence on population abundance and supports greater stability at lek sites. These trends also extended across years of high population as well as years of population declines, therefore indicating the importance of structural connectivity across the full cycle. Overall, my research explicitly integrates across all seasonal habitats supporting a multi-seasonal approach over a single-season approach for identifying priority areas in order to shield sage-grouse from human induced disturbances across the full annual cycle. Furthermore, I found that the structural connectivity of the landscape is beyond a simple summarization of habitat availability; therefore, when prioritizing the landscape and identifying core areas for protection, considering areas of high structural connectivity in addition to good quality habitat would enhance overall conservation outcomes across the full annual cycle.
Download or read book Managing California s Water written by Ellen Hanak and published by Public Policy Instit. of CA. This book was released on 2011 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inland Fishes of California written by Peter B. Moyle and published by Univ of California Press. This book was released on 2002-05-21 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents
Download or read book The Miombo in Transition written by Bruce Morgan Campbell and published by CIFOR. This book was released on 1996-01-01 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Miombo woodlands and their use: overview and key issues. The ecology of miombo woodlands. Population biology of miombo tree. Miombo woodlands in the wider context: macro-economic and inter-sectoral influences. Rural households and miombo woodlands: use, value and management. Trade in woodland products from the miombo region. Managing miombo woodland. Institutional arrangements governing the use and the management of miombo woodlands. Miombo woodlands and rural livelihoods: options and opportunities.
Download or read book Regionalization as a Tool for Managing Environmental Resources written by and published by . This book was released on 1989 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Ecological Characterization of Rocky Mountain Montane and Subalpine Wetlands written by and published by . This book was released on 1986 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish and Fisheries Management in Lakes and Reservoirs written by and published by . This book was released on 1993 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tourism and Global Environmental Change written by Stefan Gössling and published by Routledge. This book was released on 2006-06-07 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fascinating book is the first comprehensive analysis of the economic, social and political interrelationships between tourism and global environmental change: one of the most significant issues facing humankind today. Its contributors argue that the impacts of these changes are potentially extremely serious both for the tourism industry, and for the communities dependent upon it. Integrating knowledge from the social and physical sciences, this significant book explores they key issues surrounding global environmental change, as well as government and industry willingness to meet the challenges posed by it. Divided into four main sections, it investigates: the tourism and global environmental change relationship in specific environments global issues related to environmental change differing perceptions of global environmental change held by tourists and the tourist industry. Comprehensive in scope, topical and integrative, this key text is essential reading for students, scholars and researchers in all aspects of tourism, geography and environmental studies.
Download or read book The National Hydrography Dataset written by and published by . This book was released on 1999 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microchiropteran Bats written by Anthony Michael Hutson and published by IUCN. This book was released on 2001 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioinvaders written by Sarah Johnson and published by . This book was released on 2010 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are pleased to announce a new series of environmental history readers, suitable for students. Comprising essays selected from our journals, Environment and History and Environmental Values, each inexpensive paperback volume will address an important theme in environmental history, combining underlying theory and specific case-studies. The first volume, Bio-invaders, investigates the rhetoric and realities of exotic, introduced and 'alien' species. The book comprises a number of general essays, exploring and challenging common perceptions about such species, and a series of case studies of specific species in specific contexts. Its geographical coverage ranges from the United Kingdom to New Zealand by way of South Africa, India and Palestine; and the essays cover both historical and recent introductions.
Download or read book Rapid Bioassessment Protocols for Use in Wadeable Streams and Rivers written by United States. Environmental Protection Agency. Office of Water and published by . This book was released on 1999 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Planner s Guide for Oak Woodlands written by and published by . This book was released on 1993 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Santa Fe National Forest Plan written by and published by . This book was released on 1987 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
