A Guide to the Identification of Genera of Chironomid Pupal Exuviae Occurring in Britain and Ireland (including Common Genera from Northern Europe) and Their Use in Monitoring Lotic and Lentic Fresh Waters PDF Download
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Author: Ronald S.. Wilson Publisher: ISBN: 9780900386732 Category : Chironomidae Languages : en Pages : 176
Book Description
About 600 species of non-biting or "dancing" midges occur in Britain and Ireland, with many more on the continent of Europe. They are most noticeable when the adults perform mating flights in swarms along the shores of runningwater (lentic) and standing or still-water (lotic) habitats. The aquatic life-cycle of eggs, larvae and pupae usually lasts for a year or less. When adult midges emerge from their pupae the empty cast skins or pupal exuviae float on the water-surface and become part of the flotsam accumulating along strand-lines and in backwaters. In such places, pupal exuviae can be scooped-up easily with a long-handled pondnet, for subsequent identification under low magnification. This guide provides a series of multiple-choice keys for identifying the pupal exuviae of 145 genera and more than 100 selected species of Chironomidae that have been recorded from Britain and Ireland, including some that may become added to the list as they colonise the region from Northern Europe. The guide provides a simplified introduction to the complex taxonomy of the Family Chironomidae, and is intended for use by those who are not familiar with the group. The text is generously illustrated with line-drawings of important characters used for identification. An illustrated key is also given to separate the pupal exuviae of chironomids from the cast skins of other common aquatic insects that are similar in general appearance. All genera and species covered by the guide are allocated to one of four groups representing varying degrees of organic pollution, based on published knowledge of the ecological requirements of genera and individual species, and the authors' own extensive experience. Drs Wilson and Ruse use their Chironomid Pupal Exuvial Technique (CPET) to evaluate habitat diversity and the ecological quality of a wide variety of water-bodies, and to monitor any changes occurring in them. Their technique is comparable to others that are commonly employed in biological monitoring and assessment of water quality. CPET is summarised and briefly discussed in a special section of the text.
Author: Ronald S.. Wilson Publisher: ISBN: 9780900386732 Category : Chironomidae Languages : en Pages : 176
Book Description
About 600 species of non-biting or "dancing" midges occur in Britain and Ireland, with many more on the continent of Europe. They are most noticeable when the adults perform mating flights in swarms along the shores of runningwater (lentic) and standing or still-water (lotic) habitats. The aquatic life-cycle of eggs, larvae and pupae usually lasts for a year or less. When adult midges emerge from their pupae the empty cast skins or pupal exuviae float on the water-surface and become part of the flotsam accumulating along strand-lines and in backwaters. In such places, pupal exuviae can be scooped-up easily with a long-handled pondnet, for subsequent identification under low magnification. This guide provides a series of multiple-choice keys for identifying the pupal exuviae of 145 genera and more than 100 selected species of Chironomidae that have been recorded from Britain and Ireland, including some that may become added to the list as they colonise the region from Northern Europe. The guide provides a simplified introduction to the complex taxonomy of the Family Chironomidae, and is intended for use by those who are not familiar with the group. The text is generously illustrated with line-drawings of important characters used for identification. An illustrated key is also given to separate the pupal exuviae of chironomids from the cast skins of other common aquatic insects that are similar in general appearance. All genera and species covered by the guide are allocated to one of four groups representing varying degrees of organic pollution, based on published knowledge of the ecological requirements of genera and individual species, and the authors' own extensive experience. Drs Wilson and Ruse use their Chironomid Pupal Exuvial Technique (CPET) to evaluate habitat diversity and the ecological quality of a wide variety of water-bodies, and to monitor any changes occurring in them. Their technique is comparable to others that are commonly employed in biological monitoring and assessment of water quality. CPET is summarised and briefly discussed in a special section of the text.
Author: Ronald S. Wilson Publisher: ISBN: 9780900386732 Category : Chironomidae Languages : en Pages : 176
Book Description
About 600 species of non-biting or "dancing" midges occur in Britain and Ireland, with many more on the continent of Europe. They are most noticeable when the adults perform mating flights in swarms along the shores of runningwater (lentic) and standing or still-water (lotic) habitats. The aquatic life-cycle of eggs, larvae and pupae usually lasts for a year or less. When adult midges emerge from their pupae the empty cast skins or pupal exuviae float on the water-surface and become part of the flotsam accumulating along strand-lines and in backwaters. In such places, pupal exuviae can be scooped-up easily with a long-handled pondnet, for subsequent identification under low magnification. This guide provides a series of multiple-choice keys for identifying the pupal exuviae of 145 genera and more than 100 selected species of Chironomidae that have been recorded from Britain and Ireland, including some that may become added to the list as they colonise the region from Northern Europe. The guide provides a simplified introduction to the complex taxonomy of the Family Chironomidae, and is intended for use by those who are not familiar with the group. The text is generously illustrated with line-drawings of important characters used for identification. An illustrated key is also given to separate the pupal exuviae of chironomids from the cast skins of other common aquatic insects that are similar in general appearance. All genera and species covered by the guide are allocated to one of four groups representing varying degrees of organic pollution, based on published knowledge of the ecological requirements of genera and individual species, and the authors' own extensive experience. Drs Wilson and Ruse use their Chironomid Pupal Exuvial Technique (CPET) to evaluate habitat diversity and the ecological quality of a wide variety of water-bodies, and to monitor any changes occurring in them. Their technique is comparable to others that are commonly employed in biological monitoring and assessment of water quality. CPET is summarised and briefly discussed in a special section of the text.
Author: Alain Maasri Publisher: Elsevier ISBN: 0128218568 Category : Science Languages : en Pages : 682
Book Description
Identification and Ecology of Freshwater Arthropods in the Mediterranean Basin covers the entire Mediterranean basin, including parts of Europe, Asia, Africa and the Mediterranean islands, but excluding other biogeographic locations with Mediterranean climates located outside the region. The book provides an extensive description of the taxonomy and ecology of aquatic arthropods encountered in lentic and lotic habitats, as well as in less studied underground and estuarine habitats. It offers expanded taxonomic identification keys to major groups of arthropods with a description of their ecology and distribution. Keys for insects include aquatic larval stages and water-dwelling adults of Coleoptera and Heteroptera. Additional sections focus on taxa that can be encountered in adjacent brackish and estuary ecosystems as long as the taxon primarily occurs in freshwaters. This is a much-needed, comprehensive resource on the taxonomy and ecology of freshwater arthropods with an introduction to recent molecular tools for identifications. It will be particularly useful for freshwater ecologists, limnologists, environmentalists and students in the ecological sciences. - Presents taxonomic keys to genera and species to the majority of aquatic arthropod families - Provides coverage of all freshwater ecosystems of the Mediterranean basin, with case studies and examples - Includes numerous photographs of the aquatic arthropods described in the chapters - Covers the ecology and taxonomy of organisms living in more traditionally studied lakes and streams as well as in less studied underground and estuarine habitats
Author: Pjotr Oosterbroek Publisher: BRILL ISBN: 9004278060 Category : Science Languages : en Pages : 210
Book Description
The European families of the Diptera presents an identification key and family descriptions of all 132 families of Diptera (midges, mosquitoes, gnats, true flies) occurring in Europe. It is written by a well-known Dutch specialist, in collaboration with over 30 European dipterists. For the extensive identification key a new combination of important characters is employed, enabling relatively easy identification of families which are aberrant or traditionally considered difficult to identify. Over 600 line drawings are included to illustrate characters and families. Apart from the key, the book includes an extensive chapter on terminology. Information on systematics and the number of genera and species in Europe, a survey of the main characters, a summary of the biology and of the pertaining identification literature is included for all families. Due to its design and content, the book will be of interest to the lay public and the serious amateur alike.
Author: James H. Thorp Publisher: Academic Press ISBN: 0123748550 Category : Nature Languages : en Pages : 1036
Book Description
"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.
Author: Ronald S.. Wilson
Author: Ronald S.. Wilson
Author: Ronald S. Wilson
Author: Alain Maasri
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Author: 
Author: Pjotr Oosterbroek
Author: Freshwater Biological Association
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Author: 
Author: James H. Thorp