Download or read book Pulsed flow Effects on Foothill Yellow legged Frog Rana Boylii written by and published by . This book was released on 2008 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identifying Microclimatic and Water Flow Triggers Associated with Breeding Activities of a Foothill Yellow legged Frog Rana Boylii Population on the North Fork Feather River California written by and published by . This book was released on 2008 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecohydraulics written by Ian Maddock and published by John Wiley & Sons. This book was released on 2013-07-01 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecohydraulics: An Integrated Approachprovides a research level text which highlights recent developments of this emerging and expanding field. With a focus on interdisciplinary research the text examines:- the evolution and scope of ecohydraulics interactions between hydraulics, hydrology, fluvial geomorphology and aquatic ecology the application of habitat modelling in ecohydraulic studies state of the art methodological developments and approaches detailed case studies including fish passage design and the management of environmental flow regimes research needs and the future of ecohydraulics research The contributions offer broad geographic coverage to encapsulate the wide range of approaches, case studies and methods used to conduct ecohydraulics research. The book considers a range of spatial and temporal scales of relevance and aquatic organisms ranging from algae and macrophytes to macroinvertebrates and fish. River management and restoration are also considered in detail, making this volume of direct relevance to those concerned with cutting edge research and its application for water resource management. Aimed at academics and postgraduate researchers in departments of physical geography, earth sciences, environmental science, environmental management, civil engineering, biology, zoology, botany and ecology; Ecohydraulics: An Integrated Approach will be of direct relevance to academics, researchers and professionals working in environmental research organisations, national agencies and consultancies.
Download or read book Status of the Foothill Yellow legged Frog Rana Boylii in Oregon written by Aaron Nicholas Borisenko and published by . This book was released on 1999 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foothill Yellow legged Frog Conservation Assessment in California written by and published by . This book was released on 2016 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book California Amphibian and Reptile Species of Special Concern written by Robert C. Thomson and published by Univ of California Press. This book was released on 2016-06-21 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most important hotspots of herpetological biodiversity in the United States, California is home to many endemic amphibians and reptiles found nowhere else on earth. Many of these taxa have unique ecological and morphological specializations, and their management is an important conservation challenge. Increasing climate change impacts, human development, and extreme drought mean many of these species face an ever-greater risk of extinction. California Amphibian and Reptile Species of Special Concern provides an up-to-date synthesis of the current state of knowledge regarding the biology and conservation risks faced by 45 of California’s most sensitive amphibian and reptile species. With the goal of enhancing management based on the best available science, the authors developed a novel set of risk metrics to identify special concern species and the threats they face, including population declines, range size and restrictions, and ecological specializations and niche restrictions. In addition to detailed species accounts, this book provides a quantitative analysis of the conservation status and pressing management issues facing individual species and the state’s amphibian and reptile fauna as a whole. The volume focuses on identifying threats, concrete recommendations for management and recovery, and future research needs. The text is complemented by detailed distribution maps, color photos, and graphs. Written in nontechnical language, California Amphibian and Reptile Species of Special Concern will be a valuable resource to a broad range of users from resource managers, field biologists, and academic herpetologists to students and recreational naturalists. Published in association with the California Department of Fish and Wildlife.
Download or read book Sustainable Water written by Allison Lassiter and published by Univ of California Press. This book was released on 2015-07-24 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water scarcity, urban population growth, and deteriorating infrastructure are impacting water security around the globe. Struggling with the most significant drought in its recorded history, California faces all of these challenges to secure reliable water supplies for the future. The unfolding story of California water includes warnings and solutions for any region seeking to manage water among the pressures of a dynamic society and environment. Written by leading policy makers, lawyers, economists, hydrologists, ecologists, engineers, and planners, Sustainable Water reaches across disciplines to address problems and solutions for the sustainable use of water in urban areas. The solutions and ideas put forward in this book integrate water management strategies to increase resilience in a changing world. Contributors: John T. Andrew, Carolina Balazs, Celeste Cantú, Juliet Christian-Smith, Matthew Deitch, Caitlin Dyckman, Howard Foster, Julian Fulton, Peter Gleick, Brian E. Gray, Ellen Hanak, Maurice Hall, Michael Hanemann, Sasha Harris-Lovett, Matthew Heberger, G. Mathias Kondolf, Jay Lund, Damian Park, Kristen Podolak, John Radke, Isha Ray, David Sedlak, Fraser Shilling, Daniel Wendell, Robert Wilkinson, Cleo Woelfle-Erskine, Sarah Yarnell
Download or read book Ecological Evaluation of Hydropower Pulsed Releases on California Stream Systems written by and published by . This book was released on 2008 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Energy Regulatory Commission Reports written by United States. Federal Energy Regulatory Commission and published by . This book was released on 2004 with total page 1552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Assessment for the Foothill Yellow legged Frog Rana Boylii in Oregon written by Deanna H. Olson and published by . This book was released on 2009 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper American River Hydroelectric Project Chili Bar Hydroelectric Project written by and published by . This book was released on 2008 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population level Variation in Vocalizations of Rana Boylii the Foothill Yellow legged Frog written by Courtney S. Silver and published by . This book was released on 2017 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book STATUS OF FOOTHILL YELLOW LEGGED FROG RANA BOYLII IN OREGON U S DEPARTMENT OF THE INTERIOR APRIL 15 1999 written by U.S. Fish and Wildlife Service and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Responses of Foothill Yellow legged Frog Rana Boylii Larvae to an Introduced Predator written by David J. Paoletti and published by . This book was released on 2010 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The consequences of species introductions into non-native habitats are a major cause of concern in the U.S. An introduced species may alter native habitats, cause economic damage, compete with natives for resources or prey on them. Of particular interest are the effects of predation by introduced fishes on native amphibians. Amphibians as a group have been declining worldwide due to a variety of factors, one of which being introduced species. In the Pacific Northwest of the U.S., one example of these declining amphibians is the foothill yellow-legged frog (Rana boylii). In Oregon, R. boylii has disappeared from more than half of its historical sites and is now listed as a state and federal Sensitive Species. Although specific causes have not been determined, declines may be partly attributed to the recent introduction of smallmouth bass (Micropterus dolomieu) to some of the river systems in which these frogs live. Although smallmouth bass have been implicated as a cause of losses, very little is known about interactions between these two species. Given the relatively short period of time these two species have been co-existing, we sought to determine whether R. boylii larvae could even recognize bass as a predatory threat. Through a series of experiments, we examined the behavioral responses of larvae to a variety of stimuli including a native potential predator (rough-skinned newt, Taricha granulosa), introduced predator (smallmouth bass, M. dolomieu), and a native non-predatory fish (speckled dace, Rhinichthys osculus). Each experiment examined a different potential mode of detection: 1) chemical cues only; 2) visual cues only; or 3) a combination of chemical/visual/mechanical cues simultaneously. We predicted that in each experiment, larvae would respond to the native predator by exhibiting antipredator behaviors, whereas those exposed to cues of the non-native, unfamiliar predator would display activity levels similar to larvae exposed to controls. In addition, we tested amphibian larvae from two populations - one where they co-occur with M. dolomieu, and compared them to larvae from a location where M. dolomieu has not yet invaded - to determine whether any antipredator responses observed were recently developed behavioral adaptations. We analyzed initial and overall responses to stimuli. Our analyses of the initial responses of R. boylii larvae revealed an increase in activity when exposed to the visual cues of bass relative to controls. Furthermore, our results suggested that individual R. boylii larvae require multiple cues to facilitate predator detection. When exposed to multiple cues of their native predator, the rough-skinned newt, larvae responded with a significant reduction in activity levels. Those larvae exposed to cues of the non-native predator, smallmouth bass, displayed similar behaviors relative to control cues, supporting our prediction. Consequently, foothill yellow-legged frog larvae appear to be especially vulnerable to predation by non-native smallmouth bass.
Download or read book Vocal Behavior of Foothill and Mountain Yellow legged Frogs Rana Boylii and R Muscosa written by Timothy C. Ziesmer and published by . This book was released on 1997 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Santa Clara Valley Habitat Plan written by and published by . This book was released on 2010 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Water Temperature on Breeding Phenology Growth and Timing of Metamorphosis of Foothill Yellow legged Frogs Rana Boylii on the Mainstem and Selected Tributaries of California s Trinity River 2004 2009 written by and published by . This book was released on 2013 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
