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Effects Of Beaver Castor Canadensis Activity On Stream Water Quality
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Book Synopsis Effects of Beaver (castor Canadensis) Activity on Stream Water Quality by : Shannon M. Komadina-Douthwright
Download or read book Effects of Beaver (castor Canadensis) Activity on Stream Water Quality written by Shannon M. Komadina-Douthwright and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Beaver Activity, Castor Canadensis, on Stream Water Quality Under Conditions of Prolonged Snow and Ice-cover, Winter 1991-92 by :
Download or read book Effects of Beaver Activity, Castor Canadensis, on Stream Water Quality Under Conditions of Prolonged Snow and Ice-cover, Winter 1991-92 written by and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study to determine the effects of beaver activity on water quality under conditions of winter ice cover and to contrast the water quality parameters from beaver ponds of different ages. From 30 November 1991 until 25 April 1992, weekly water samples were collected under snow and ice-cover from an old abandoned beaver pond and a new pond and their proximal streams in Catamaran Brook, a tributary of the Little Southwest Miramichi in central New Brunswick. Samples were analyzed for specific conductance, turbidity, apparent colour, dissolved oxygen, dissolved nitrate, and dissolved sulphate.
Book Synopsis Effects of Beaver (Castor Canadensis) Activity on Stream Water Quality Under Conditions of Prolonged Snow and Ice-cover (winter 1991-1992) by : Shannon M. Komadina-Douthwright
Download or read book Effects of Beaver (Castor Canadensis) Activity on Stream Water Quality Under Conditions of Prolonged Snow and Ice-cover (winter 1991-1992) written by Shannon M. Komadina-Douthwright and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Beaver (Castor Canadensis) Activity on Stream Water Quality Under Conditions of Prolonged Snow and Ice-cover (winter 1991-1992) by : Canada. Department of Fisheries and Oceans
Download or read book Effects of Beaver (Castor Canadensis) Activity on Stream Water Quality Under Conditions of Prolonged Snow and Ice-cover (winter 1991-1992) written by Canada. Department of Fisheries and Oceans and published by . This book was released on 1994 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Eurasian Beaver by : Róisín Campbell-Palmer
Download or read book The Eurasian Beaver written by Róisín Campbell-Palmer and published by Pelagic Publishing Ltd. This book was released on 2015-01-19 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eurasian beaver was near extinction at the start of the twentieth century, hunted across Europe for its fur, meat and castoreum. But now the beaver is on the brink of a comeback, with wild beaver populations, licensed and unlicensed, emerging all over Britain.
Book Synopsis Influences of Beaver (Castor Canadensis) Activity on Ecology and Fish Assemblages of Dryland Streams by : Polly Peterkort Gibson
Download or read book Influences of Beaver (Castor Canadensis) Activity on Ecology and Fish Assemblages of Dryland Streams written by Polly Peterkort Gibson and published by . This book was released on 2013 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: After near-extirpation in the early 20th century, beaver populations are increasing throughout many parts of North America. Simultaneously, there is an emerging interest in employing beaver activity for stream restoration in arid and semi-arid environments (collectively, `drylands'), where streams and adjacent riparian ecosystems are expected to face heightened challenges from climate change and human population growth. However, despite growing interest in reintroduction programs, surprisingly little is known about the ecology of beaver in dryland streams, and science to guide management decisions is often fragmented and incomplete. In my first chapter I systematically reviewed the literature addressing the ecological effects and management of beaver activity in drylands of North America, highlighting conservation implications, distinctions between temperate and dryland streams, and knowledge gaps. Well-documented effects of beaver activity in drylands include changes to channel morphology and groundwater processes, creation of perennial wetland habitat, and substantial impacts to riparian vegetation. However, many hypothesized effects lack empirical evidence, especially from dryland streams. One of the most important areas of uncertainty identified by this review is the influence of beaver activity on the proliferation and success of non-native species. Streams of the American Southwest support a highly endangered native fish fauna and abundant non-native fishes, and in my second chapter I investigated the hypothesis that beaver ponds in this region may lead to fish assemblages dominated by non-native species. I sampled fish assemblages within beaver ponds and within unimpounded stream reaches in the free-flowing upper Verde River basin, central Arizona. I found that although non-native fishes consistently outnumbered native species, this dominance was greater in pond than in stream assemblages. Multivariate analysis indicated that fish assemblages in beaver ponds were distinct from those in stream reaches, in both mainstem and tributary locations. Few native species were recorded within ponds, while some non-natives, notably green sunfish (Lepomis cyanellus) and western mosquitofish (Gambusia affinis) were abundant within ponds. Overall, this study provides evidence that, relative to unimpounded stream habitat, beaver ponds in the Verde River basin support abundant small-bodied non-native fishes, which could have negative impacts on co-occurring native fish populations.
Book Synopsis Some Effects of Beaver (Castor Canadensis) and Beaver Pond Management on the Ecology and Utilization of Fish Populations Along Warm-water Streams in Georgia and South Carolina by : Thomas Marion Pullen
Download or read book Some Effects of Beaver (Castor Canadensis) and Beaver Pond Management on the Ecology and Utilization of Fish Populations Along Warm-water Streams in Georgia and South Carolina written by Thomas Marion Pullen and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Eurasian Beaver Handbook by : Roisin Campbell-Palmer
Download or read book The Eurasian Beaver Handbook written by Roisin Campbell-Palmer and published by Pelagic Publishing Ltd. This book was released on 2016-08-15 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beavers are widely recognised as a keystone species which play a pivotal role in riparian ecology. Their tree felling and dam building behaviours coupled with a suite of other activities create a wealth of living opportunities that are exploited by a range of other species. Numerous scientific studies demonstrate that beaver-generated living environments that are much richer in terms of both biodiversity and biomass than wetland environments from which they are absent. Emerging contemporary studies indicate clearly that the landscapes they create can afford sustainable, cost-effective remedies for water retention, flood alleviation, silt and chemical capture. Beaver activities, especially in highly modified environments, may be challenging to certain land use activities and landowners. Many trialled and tested methods to mitigate against these impacts, including a wide range of non-lethal management techniques, are regularly implemented across Europe and North America. Many of these techniques will be new to people, especially in areas where beavers are newly re-establishing. This handbook serves to discuss both the benefits and challenges in living with this species, and collates the wide range of techniques that can be implemented to mitigate any negative impacts. The authors of this handbook are all beaver experts and together they have a broad range of scientific knowledge and practical experience regarding the ecology, captive husbandry, veterinary science, pathology, reintroduction and management of beavers in both continental Europe and Britain.
Book Synopsis Linking Species & Ecosystems by : Clive G. Jones
Download or read book Linking Species & Ecosystems written by Clive G. Jones and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: I was asked to introduce this volume by examining "why a knowledge of ecosys tem functioning can contribute to understanding species activities, dynamics, and assemblages." I have found it surprisingly difficult to address this topic. On the one hand, the answer is very simple and general: because all species live in ecosystems, they are part of and dependent on ecosystem processes. It is impossible to understand the abundance and distribution of populations and the species diversity and composition of communities without a knowledge of their abiotic and biotic environments and of the fluxes of energy and mat ter through the ecosystems of which they are a part. But everyone knows this. It is what ecology is all about (e.g., Likens, 1992). It is why the discipline has retained its integrity and thrived, despite a sometimes distressing degree of bickering and chauvinism among its various subdisciplines: physiological, be havioral, population, community, and ecosystem ecology.
Download or read book Saving the Dammed written by Ellen Wohl and published by Oxford University Press, USA. This book was released on 2019 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability of beavers to create an abundant habitat for a diverse array of plants and animals has been analyzed time and again. The disappearance of beavers across the northern hemisphere, and what this effects, has yet to be comprehensively studied. Saving the Dammed analyzes the beneficial role of beavers and their dams in the ecosystem of a river, focusing on one beaver meadow in Colorado. In her latest book, Ellen Wohl contextualizes North St. Vrain Creek by discussing the implications of the loss of beavers across much larger areas. Saving the Dammed raises awareness of rivers as ecosystems and the role beavers play in sustaining the ecosystem surrounding rivers by exploring the macrocosm of global river alteration, wetland loss, and the reduction in ecosystem services. The resulting reduction in ecosystem services span things such as flood control, habitat abundance and biodiversity, and nitrate reduction. Allowing readers to follow her as she crawls through seemingly impenetrable spaces with slow and arduous movements, Wohl provides a detailed narrative of beaver meadows. Saving the Dammed takes readers through twelve months at a beaver meadow in Colorado's Rocky Mountain National Park, exploring how beavers change river valleys and how the decline in beaver populations has altered river ecosystems. As Wohl analyzes and discusses the role beavers play in the ecosystem of a river, readers get to follow her through tight, seemingly impenetrable, crawl spaces as she uncovers the benefit of dams.
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invertebrates in Freshwater Wetlands by : Darold Batzer
Download or read book Invertebrates in Freshwater Wetlands written by Darold Batzer and published by Springer. This book was released on 2016-02-05 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands are among the world’s most valuable and most threatened habitats, and in these crucially important ecosystems, the invertebrate fauna holds a focal position. Most of the biological diversity in wetlands is found within resident invertebrate assemblages, and those invertebrates are the primary trophic link between lower plants and higher vertebrates (e.g. amphibians, fish, and birds). As such, most scientists, managers, consultants, and students who work in the world’s wetlands should become better informed about the invertebrate components in their habitats of interest. Our book serves to fill this need by assembling the world’s most prominent ecologists working on freshwater wetland invertebrates, and having them provide authoritative perspectives on each the world’s most important freshwater wetland types. The initial chapter of the book provides a primer on freshwater wetland invertebrates, including how they are uniquely adapted for life in wetland environments and how they contribute to important ecological functions in wetland ecosystems. The next 15 chapters deal with invertebrates in the major wetlands across the globe (rock pools, alpine ponds, temperate temporary ponds, Mediterranean temporary ponds, turloughs, peatlands, permanent marshes, Great Lakes marshes, Everglades, springs, beaver ponds, temperate floodplains, neotropical floodplains, created wetlands, waterfowl marshes), each chapter written by groups of prominent scientists intimately knowledgeable about the individual wetland types. Each chapter reviews the relevant literature, provides a synthesis of the most important ecological controls on the resident invertebrate fauna, and highlights important conservation concerns. The final chapter synthesizes the 15 habitat-based chapters, providing a macroscopic perspective on natural variation of invertebrate assemblage structure across the world’s wetlands and a paradigm for understanding how global variation and environmental factors shape wetland invertebrate communities.
Book Synopsis Effects of Beaver (Castor Canadensis) Impoundments on Stream Temperature and Fish Community Species Composition and Growth in Selected Tributaries of Miramichi River, New Brunswick by : M. D. Alexander
Download or read book Effects of Beaver (Castor Canadensis) Impoundments on Stream Temperature and Fish Community Species Composition and Growth in Selected Tributaries of Miramichi River, New Brunswick written by M. D. Alexander and published by . This book was released on 1998 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beavers: Boreal Ecosystem Engineers by : Carol A. Johnston
Download or read book Beavers: Boreal Ecosystem Engineers written by Carol A. Johnston and published by Springer. This book was released on 2017-08-28 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the fields of ecosystem science and landscape ecology, this book integrates Dr. Carol Johnston's research on beaver ecosystem alteration at Voyageurs National Park. The findings about the vegetation, soils, and chemistry of beaver impoundments synthesized in the text provide a cohesive reference useful to wetland scientists, ecosystems and landscape ecologysts, wildlife managers, and students. The beaver, Castor canadensis, is an ecosystem engineer unequaled in its capacity to alter landscapes through browsing and dam building, whose population recovery has re-established environmental conditions that probably existed for millenia prior to its near extirpation by trapping in the 1800s and 1900s. Beavers continue to regain much of their natural range throughout North America, changing stream and forest ecosystems in ways that may be lauded or vilified. Interest in beavers by ecologists remains keen as new evidence emerges about the ecological, hydrological, and biogeochemical effects of beaver browsing and construction. There is a critical need for ecologists and land managers to understand the potential magnitude, persistence, and ecosystem services of beaver landscape transformation. The 88-year record of beaver landscape occupation and alteration documented by Dr. Carol Johnston and colleagues from aerial photography and field work provides a unique resource toward understanding the ecosystem effects and sustainability of beaver activity.
Download or read book General Technical Report INT. written by and published by . This book was released on 1987 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Once They Were Hats by : Frances Backhouse
Download or read book Once They Were Hats written by Frances Backhouse and published by ECW/ORIM. This book was released on 2015-10-01 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Unexpectedly delightful reading—there is much to learn from the buck-toothed rodents of yore” (National Post). Beavers, those icons of industriousness, have been gnawing down trees, building dams, shaping the land, and creating critical habitat in North America for at least a million years. Once one of the continent’s most ubiquitous mammals, they ranged from the Atlantic to the Pacific, and from the Rio Grande to the edge of the northern tundra. Wherever there was wood and water, there were beavers—sixty million, or more—and wherever there were beavers, there were intricate natural communities that depended on their activities. Then the European fur traders arrived. Once They Were Hats examines humanity’s fifteen-thousand–year relationship with Castor canadensis, and the beaver’s even older relationship with North American landscapes and ecosystems. From the waterlogged environs of the Beaver Capital of Canada to the wilderness cabin that controversial conservationist Grey Owl shared with pet beavers; from a bustling workshop where craftsmen make beaver-felt cowboy hats using century-old tools to a tidal marsh where an almost-lost link between beavers and salmon was recently found, it’s a journey of discovery to find out what happened after we nearly wiped this essential animal off the map, and how we can learn to live with beavers now that they’re returning. “Fascinating and smartly written.” —The Globe and Mail (Toronto)
Download or read book Beavers written by Frank Rosell and published by Oxford University Press. This book was released on 2022-01-07 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beavers are represented by two extant species, the Eurasian beaver (Castor fiber) and the North American beaver (Castor canadensis); each has played a significant role in human history and dominated wetland ecology in the northern hemisphere. Their behaviour and ecology both fascinate and perhaps even infuriate, but seemingly never fail to amaze. Both species have followed similar histories from relentless persecution to the verge of extinction (largely through hunting), followed by their subsequent recovery and active restoration which is viewed by many as a major conservation success story. Beavers have now been reintroduced throughout Europe and North America, demonstrating that their role as a keystone engineer is now widely recognised with proven abilities to increase the complexity and biodiversity of freshwater ecosystems. What animals other than humans can simultaneously act as engineers, forest workers, carpenters, masons, creators of habitats, and nature managers? Over the last 20 years, there has been a huge increase in the number of scientific papers published on these remarkable creatures, and an authoritative synthesis is now timely. This accessible text goes beyond their natural history to describe the impacts on humans, conflict mitigation, animal husbandry, management, and conservation. Beavers: Ecology, Behaviour, Conservation, and Management is an accessible reference for a broad audience of professional academics (especially carnivore and mammalian biologists), researchers and graduate students, governmental and non-governmental wildlife bodies, and amateur natural historians intrigued by these wild animals and the extraordinary processes of nature they exemplify.
