Crayfish In Europe As Alien Species

Author: Francesca Gherardi
Editor: Routledge
ISBN: 1351457519
File Size: 29,92 MB
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From the third international workshop on the subject (U. of Florence, 1997), come 18 papers reviewing the issue of alien crayfish decimating the relatively few native species in European freshwater environments. In a historical and taxonomic context, the initial paper explains why such homogenizatio

Handbook Of Alien Species In Europe

Author: Delivering Alien Invasive Species
Editor: Springer Science & Business Media
ISBN: 1402082800
File Size: 73,82 MB
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Biological invasions by alien (non-native) species are widely recognized as a significant component of human-caused global environmental change and the second most important cause of biodiversity decline. Alien species threaten many European ecosystems and have serious environmental, economic and health impacts. The DAISIE (Delivering Alien Invasive Species Inventories for Europe) project has now brought together all available information on alien species in Europe (terrestrial, aquatic and marine) and from all taxa (fungi, plants, animals). Thus for the first time, an overview and assessment of biological invasions in the Pan-European region is finally possible. The Handbook of Alien Species in Europe summarises the major findings of this groundbreaking research and addresses the invasion trends, pathways, and both economic as well as ecological impact for eight major taxonomic groups. Approximately 11.000 alien species recorded in Europe are listed, and fact sheets for 100 of the most invasive alien species are included, each with a distribution map and colour illustration. The book is complemented by a regularly updated internet database providing free additional information. With its highly interdisciplinary approach, DAISIE and its Handbook will be the basis for future scientific investigations as well as management and control of alien invasive species in Europe.

British Wildlife

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File Size: 57,13 MB
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Plant Protection And Plant Health In Europe

Author: British Crop Protection Council
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ISBN:
File Size: 28,47 MB
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Fundamental And Applied Limnology

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File Size: 35,63 MB
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Canadian Journal Of Zoology

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File Size: 39,42 MB
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Checklist And Distribution Of The Italian Fauna

Author: Sandro Ruffo
Editor:
ISBN:
File Size: 53,89 MB
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Effects Of Omnivorous Crayfish On Fish Populations And The Structure Of Littoral Communities

Author: Nathan Jeffrey Dorn
Editor:
ISBN:
File Size: 24,24 MB
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Invasion Success And Community Effects Of Signal Crayfish

Author: Theo Light
Editor:
ISBN:
File Size: 21,53 MB
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"Alien crayfish threaten freshwater communities in many parts of the world, and are a novel element in many California stream systems. I conducted a five-year field study in eastern Sierra Nevada streams of non-native signal crayfish (Pacifastacus leniusculus) distribution and habitat relationships, community effects, and interactions with native Paiute sculpin (Cottus beldingi, a small benthic fish). My first dissertation chapter examines the distribution of crayfish and sculpin, their associations with reservoirs and stream regulation, and abundance changes over time associated with natural hydrologic disturbance. Crayfish and sculpin densities were positively correlated at scales from local to regional, probably because of the strong associations of both species with low gradients and rocky cover. Crayfish were most abundant in stream segments close to reservoirs, and declined in years following intense and prolonged winter floods. Sculpin were less abundant than expected in regulated reaches, and their recruitment increased in flood years. The second chapter reports the results of field enclosure experiments investigating competition between crayfish and sculpin and top-down effects of both species on benthic invertebrates and algae. These experiments indicated strong, reciprocal interspecific competition, as measured by growth rates, and strong intraspecific competition among crayfish but no evidence of competition among sculpin at natural densities. Crayfish reduced total invertebrate abundance and abundance of larger invertebrates but had no effect on algal biomass. Sculpin had neutral or marginally positive effects on invertebrates and positive effects on algae. The final chapter considers behavioral mechanisms for the competitive effects of crayfish on sculpin, evaluated experimentally in a stream observation facility of the Sagehen Creek Field Station. Sculpin reduced their use of shelters and pools, shifted into higher-velocity microhabitats, and spent more time fleeing in the presence of crayfish. Crayfish used shelters, pools, and low-velocity habitats more than sculpin. Under natural conditions, potential refuges (unembedded rocks) were closely associated with total crayfish and sculpin densities, suggesting that competition for cover may occur in Sagehen Creek. I conclude that although crayfish may alter communities in reservoir-influenced streams, and can invade far upstream during prolonged droughts, their effects are probably minor or temporary in most unregulated stream reaches."--Abstract.

Biodiversity Conservation And Habitat Management Volume Ii

Author: Franccesa Gherardi
Editor: EOLSS Publications
ISBN: 1905839219
File Size: 35,48 MB
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Biodiversity Conservation and Habitat Management is a component of Encyclopedia of Natural Resources Policy and Management in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Biodiversity is declining worldwide at a very unprecedented rate as a complex response to several human-induced changes in the global environment. The magnitude of these changes is so large and their effects are so strongly linked to the altered ecosystem processes and to human (ab-)use of natural resources that biodiversity loss is today perceived as one of the most important issues that humankind should face with extreme urgency. Disseminating information, raising awareness, and propelling concern within a diversified target audience (general public, schools, local authorities, and government agencies) are also essential to develop shared responsibility and to encourage collaborative efforts and compliance. This has been the main objective of “Biodiversity Conservation and Habitat Management”. The Theme on Biodiversity Conservation and Habitat Management provides the essential aspects and a myriad of issues of great relevance to our world in eight major topics of discussion, and is focused on 1) History and Overview of Biodiversity Conservation and Protected Areas, 2) Management of Forests and other Wooded Habitats, 3) Management of Savannahs and Other Open Habitats, 4) Management of Wetlands, 5) Management of Tourism and Human Recreation Pressure, 6) Conservation Strategies, Species Action Plans and Translocation, 7) Captive Breeding and Gene Banks, and 8) Eradication and Control of Invasive Species. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.

Archiv F R Hydrobiologie

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Freshwater Forum

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File Size: 64,65 MB
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Nature In Northern Europe

Author: Eeva-Liisa Hallanaro
Editor:
ISBN:
File Size: 36,43 MB
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Boken gir en detaljert oversikt over naturen i Nord-Europa, og tar for seg dyreliv fra Island til Nordvest-Russland, og fra Danmark til Svalbard. Boken setter søkelys på regionens vide spekter av planter og dyr, og hvor de hører hjemme. Man ser også på hvilke betingelser som i årenes løp har formet dyre- og plantelivet, med hovedvekt på menneskenes inngripen i naturen i eldre og nyere tid. En rekke arter har fått egne artikler. Rikt illustrert med fargefotografier, kart og tegninger.

Australian Journal Of Zoology

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File Size: 32,90 MB
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The Long Term Fate Of Invasive Species

Author: Arne Jernelöv
Editor: Springer
ISBN: 3319553968
File Size: 68,38 MB
Format: PDF, Mobi
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This book examines the long-term fate of invasive species by detailing examples of invaders from different zoological and botanical taxa from various places around the world. Readers will discover what happened, after a century or so, to 'classical' invaders like rabbits in Australia, house sparrows in North America, minks in Europe and water hyacinths in Africa and Asia. Chapters presented in the book focus on eighteen species in the form of in-depth case studies including: earthworms, zebra mussels, Canadian water weed, Himalayan balsam, house sparrows, rabbits, crayfish plague, Colorado beetles, water hyacinths, starlings, Argentine ant, Dutch elm disease, American mink, cane toad, raccoons, Canadian beavers, African killer bees and warty comb jelly. Invaded areas described are in Africa, Asia, Australia, Europe, North America, Pacific islands, and South America. Readers will get some ideas about the likely future of current invaders from the fate of old ones. This book is intended for undergraduates studying environmental sciences, researchers and members of environmental NGO's.

Management Of Freshwater Biodiversity

Author: Julian Reynolds
Editor: Cambridge University Press
ISBN: 1139502166
File Size: 58,80 MB
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Integrating research into freshwater biodiversity and the role of keystone species, this fascinating book presents freshwater crayfish as representatives of human-exacerbated threats to biodiversity and conservation. It uses examples from these and other large decapod invertebrates to explore how communities function and are controlled, alongside the implications of human demands and conflicts over limited resources, notably the severe impacts on biodiversity. The discussion is structured around three key topics – the present situation of crayfish in world freshwater ecosystems, the applications of science to conservation management and knowledge transfer for successful crayfish management. It outlines the historic exploitation of crayfish, addressing the problems caused by invasive alien forms and explaining the importance of correct identification when dealing with conservation issues. Offering a global perspective on freshwater systems, the book ultimately highlights how the conservation of such large and long-lived species will help protect ecosystem quality in the future.

Canadian Journal Of Fisheries And Aquatic Sciences

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ISBN:
File Size: 61,82 MB
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