Download or read book Invasive Clams in Lake Tahoe written by Marianne Denton and published by . This book was released on 2011 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive species are of concern to ecologists and resource managers due to the growing ecological and economic impacts associated with their introduction. In North America, invasive species cause significant environmental impacts with costs estimates of $137 billion annually. Second to loss of habitat, invasive species have been linked to the declines in biodiversity on a global scale. Once established, invasive species have been shown to alter community and ecosystem dynamics, change habitat for native species, interrupt energy flow through food webs, and reduce ecosystem services. Among non-native aquatic species, invasive bivalves can cause significant impacts by altering the availability of resources, contributing to the extirpation of native species, declines in diversity and impairment of ecosystem functioning. They are able to tolerate a wide range of environmental conditions (temperature, water chemistry, substrate, etc.), allowing them to acclimatize to a new environments, making them adaptable to exploit ecological niches. In the last century, Corbicula fluminea (Asian clam) has been one of the more successful invasive bivalves to establish in aquatic ecosystems. C. fluminea is an invasive freshwater bivalve to North American that originally established in Pacific Northwest in 1938 from Southeast Asia, and has since been documented in 42 states. The shells of dead C. fluminea may provide refuge and substrate for the establishment of benthic larval insect communities and live clams may influence benthic communities by processes of bioturbation of sediment via burrowing and biodeposition of organic matter as feces and pseudofeces. Through highly efficient suspension-feeding and deposit- feeding on sediment organic matter, C. fluminea may also couple the pelagic and benthic food webs. The vectors of invasion are live bait buckets however the release of aquarium stock and transport via boat bilge is possible. Recently there has been an invasion of C. fluminea in Lake Tahoe, a large, deep subalpine lake located in the central Sierra Nevada of California and Nevada. Very little is known about the life history or impacts of clams on the ecology of the lake; however, preliminary research suggests they may linked to increased nearshore algal blooms. The chapters included here examine the reproductive strategies (Chapter 1) and impacts to native benthic community structure (Chapter 2) by C. fluminea in Lake Tahoe. In Chapter 1, it was determined that C. fluminea in Lake Tahoe had a low reproductive effort with a single spawn that occurred in late summer that is likely linked to the temperature and low food availability. Moreover, deeper water populations of clams are likely populations sinks dues due to the cold temperatures. Chapter 2 shows how C. fluminea changes benthic community structure depending on the level of infestation. It was determined that three taxa had greater abundances where abundances of C. fluminea are low. In areas with greater abundance, C. fluminea facilitate two taxa, Chironomidae and Trichoptera. While the mechanisms were not studied, the shells of clams may provide structure and thus habitat for certain invertebrates. Other mechanisms of facilitation such as competition or providing increased food supply through the release of pseudofeces may also impact community structure. Other behavioral experiments and raw data not formally presented in chapter form are presented in the Appendix. As the establishment of C. fluminea is still in an early stage of invasion, future studies and monitoring will be essential to further determine how the clam impacts Lake Tahoe's ecosystem.
Download or read book Biology and Management of Invasive Quagga and Zebra Mussels in the Western United States written by Wai Hing Wong and published by CRC Press. This book was released on 2015-05-07 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology and Management of Invasive Quagga and Zebra Mussels in the Western United States is a synthesis of the biology and management of invasive mussels from scientists and managers working on invasive quagga and zebra mussels in the western United States. Invasive dreissenid mussels have spread throughout southwestern United States at unprecedent
Download or read book Invasive Species written by Noah Berlatsky and published by Greenhaven Publishing LLC. This book was released on 2015-12-16 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zebra mussels, purple loosestrife, and killer bees; invasive species are infiltrating our water, land, and skies, disrupting our delicate ecosystems. This book examines ways these invaders harm, or help, the environment, and what to do about them.
Download or read book Encyclopedia of Invasive Species 2 volumes written by Susan L. Woodward and published by Bloomsbury Publishing USA. This book was released on 2011-09-22 with total page 873 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set provides a one-stop resource on invasive plants, animals, fungi, and microorganisms that are threatening native ecosystems, agriculture, economies, and human health in the United States. Kudzu vine and field bindweed. Eurasian collared-doves, Burmese pythons, and black rats. The northern snakehead and the gypsy moth. All of these are examples of invasive species that have taken over or are threatening certain ecosystems—places where these organisms never naturally occurred. This two-volume work contains 168 entries on plants, animals, fungi, and microorganisms that are invasive in the United States, providing a complete examination of the variety of organisms, pathways, distribution patterns, and impacts of non-native species introduced to this country. Encyclopedia of Invasive Species: From Africanized Honey Bees to Zebra Mussels begins with a background essay that illuminates the complexities of dealing with invasive animals and plants. Each entry provides information on the origins and invasion history of the species in question as well as a general description of the biology and ecology of each organism. Impacts—actual and potential, as well as management strategies—are addressed. Every species is depicted via photographs as well as maps that show its place of origin and invaded regions in the United States. This unique work presents fascinating scientific information as well as valuable insights about how seemingly minor events can drastically alter our environment.
Download or read book Invasive Animals and Plants in Massachusetts Lakes and Rivers written by Wai Hing Wong and published by CRC Press. This book was released on 2023-05-10 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing demand for appropriate management of aquatic invasive species in lakes and rivers worldwide. This book covers biology, invasion ecology, sightings, and control techniques of 4 invasive animals and 15 invasive plants in Massachusetts lakes and rivers. It provides valuable information on their biological characteristics and potential expansion pathways, as well as monitoring and management, including alternative management tools using updated biological, chemical, and mechanical methods. The book also includes the regulation of invasive species management to allow resource managers, biologists, practitioners, volunteers, and students a better understanding of compliance and enforcement with environmental law. An example of successful management is highlighted for each invasive species. Invasive Animals and Plants in Massachusetts Lakes and Rivers is the first book to provide comprehensive and systematic coverage and illustrations for both freshwater invasive animals and plants. Although focussing on Massachusetts, it will provide readers with the bigger picture on multiple invasive species, from prevention, early detection, control, ecological restoration, to public education. Natural resource managers in Massachusetts and surrounding states will glean the detailed and valuable information they need to learn and use to prevent and manage freshwater invasive species in the field.
Download or read book Congressional Record written by United States. Congress and published by . This book was released on 2009 with total page 1536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Department of the Interior Environment and Related Agencies Appropriations Act 2010 written by United States. Congress and published by . This book was released on 2009 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climatic Change and Global Warming of Inland Waters written by Charles R. Goldman and published by John Wiley & Sons. This book was released on 2012-11-20 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of global warming on the physical, chemical, ecological structure and function and biodiversity of freshwater ecosystems are not well understood and there are many opinions on how to adapt aquatic environments to global warming in order to minimize the negative effects of climate change. Climatic Change and Global Warming of Inland Waters presents a synthesis of the latest research on a whole range of inland water habitats – lakes, running water, wetlands – and offers novel and timely suggestions for future research, monitoring and adaptation strategies. A global approach, offered in this book, encompasses systems from the arctic to the Antarctic, including warm-water systems in the tropics and subtropics and presents a unique and useful source for all those looking for contemporary case studies and presentation of the latest research findings and discussion of mitigation and adaptation throughout the world. Edited by three of the leading limnologists in the field this book represents the latest developments with a focus not only on the impact of climate change on freshwater ecosystems but also offers a framework and suggestions for future management strategies and how these can be implemented in the future. Limnologists, Climate change biologists, fresh water ecologists, palaeoclimatologists and students taking relevant courses within the earth and environmental sciences will find this book invaluable. The book will also be of interest to planners, catchment managers and engineers looking for solutions to broader environmental problems but who need to consider freshwater ecology.
Download or read book Variation in Cold Tolerance Among Populations of the Invasive Asian Clam Corbicula Fluminea written by Emilija Cvetanovska and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Asian Clam Corbicula fluminea is one of the most invasive freshwater molluscs in the world. In north temperate regions, this subtropical species is typically restricted to artificially heated waterbodies. Its distribution has long been believed to be constrained by a lower temperature tolerance limit of 2°C, based on a frequently-cited study of a single southern population. However, overwintering populations have been discovered in some lakes and rivers in northeastern North America in recent years. I explored the hypothesis that cold tolerance of C. fluminea varies across its invaded range, by using a series of experiments on clams from six geographically distinct populations along a latitudinal gradient in eastern North America. These experiments revealed that C. fluminea can tolerate prolonged exposure to near freezing conditions and that survivorship differs across populations. Each population contained individuals that survived two months at ~0.5-1°C. Survivorship of individuals across all populations was significantly enhanced by prior acclimation to a low temperature (10°C) compared to a higher one (18°C). When acclimated to 10°C, clams from northern populations showed greater survivorship (55.0± 16.1%) than those from southern populations (26.7± 19.2%), but no difference was observed at 18°C. At both acclimation temperatures, larger clams had a higher survivorship than smaller clams. I hypothesize that physiological plasticity and acclimation history accounts for variation in cold tolerance across these populations. The results highlight the need for risk assessments of invasive species to incorporate physiological data from multiple populations, as predictions derived from single populations could be erroneous. However, a literature search of experimental studies on environmental tolerances of aquatic invasive animals found that only 8% of these studies compared at least two or more distinct populations of a given species. Similarly, a specific search that focused on the 20 aquatic invasive animals considered among the "world's worst" invaders found that only
Download or read book Moon Tahoe written by Ann Marie Brown and published by Moon Travel. This book was released on 2015-11-24 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: California outdoors expert Ann Marie Brown provides you with the essential details needed to discover all of the can't-miss sights, attractions, and restaurants in and around Tahoe. Ski Squaw Valley's renowned slopes, hibernate in a cozy South Shore cabin, dine in Tahoe City, or hike the Tahoe Rim Trail—Brown will help you maximize your time with her insider's tips no matter which of Tahoe's offerings you choose to take advantage of. Including creative trip ideas for a variety of travelers, such as "Top Picks for Families," "The Nonskier's Winter Wonderland," and "The Adrenaline Junkie," Moon Tahoe gives travelers the tools they need to create a more personal and memorable experience.
Download or read book Ecology and Classification of North American Freshwater Invertebrates written by James H. Thorp and published by Academic Press. This book was released on 2010 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The third edition of Ecology and Classification of North American Freshwater Invertebrates continues the tradition of in-depth coverage of the biology, ecology, phylogeny, and identification of freshwater invertebrates from the USA and Canada. This text serves as an authoritative single source for a broad coverage of the anatomy, physiology, ecology, and phylogeny of all major groups of invertebrates in inland waters of North America, north of Mexico." --Book Jacket.
Download or read book Freshwater Biodiversity written by David Dudgeon and published by Cambridge University Press. This book was released on 2020-05-21 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing human populations and higher demands for water impose increasing impacts and stresses upon freshwater biodiversity. Their combined effects have made these animals more endangered than their terrestrial and marine counterparts. Overuse and contamination of water, overexploitation and overfishing, introduction of alien species, and alteration of natural flow regimes have led to a 'great thinning' and declines in abundance of freshwater animals, a 'great shrinking' in body size with reductions in large species, and a 'great mixing' whereby the spread of introduced species has tended to homogenize previously dissimilar communities in different parts of the world. Climate change and warming temperatures will alter global water availability, and exacerbate the other threat factors. What conservation action is needed to halt or reverse these trends, and preserve freshwater biodiversity in a rapidly changing world? This book offers the tools and approaches that can be deployed to help conserve freshwater biodiversity.
Download or read book California Fish and Game Code 2016 written by John Snape and published by Lulu.com. This book was released on 2016-02-13 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complete text of the California Fish and Game Code for 2016.
Download or read book Fish and Game Code 2019 written by California and published by . This book was released on 2019 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonindigenous Freshwater Organisms written by Renata Claudi and published by CRC Press. This book was released on 2000 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents various aspects of non-indigenous aquatic organisms, including their biology, ecological and sometime economical impact. The focus is primarily on fishes and molluscs, the organisms that have caused the most damage.
Download or read book Ecosystems of California written by Harold Mooney and published by Univ of California Press. This book was released on 2016-01-19 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated reference and sourcebook for CaliforniaÕs remarkable ecological abundance provides an integrated assessment of each major ecosystem typeÑits distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of CaliforniaÕs ecological patterns and the history of the stateÕs various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the stateÕs ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of CaliforniaÕs environment and curious naturalists.
