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Author: P.D. Armitage Publisher: Springer Science & Business Media ISBN: 9401107157 Category : Science Languages : en Pages : 579
Book Description
The dipteran family Chironomidae is the most widely distributed and frequently the most abundant group of insects in freshwater, with rep resentatives in both terrestrial and marine environments. A very wide range of gradients of temperature, pH, oxygen concentration, salinity, current velocity, depth, productivity, altitude and latitude have been exploited, by at least some chironomid species, and in grossly polluted environments chironomids may be the only insects present. The ability to exist in such a wide range of conditions has been achieved largely by behavioural and physiological adaptations with relatively slight morphological changes. It has been estimated that the number of species world-wide may be as high as 15000. This high species diversity has been attributed to the antiquity of the family, relatively low vagility leading to isolation, and evolutionary plasticity. In many aquatic ecosystems the number of chironomid species present may account for at least 50% of the total macroinvertebrate species recorded. This species richness, wide distribution and tolerance to adverse conditions has meant that the group is frequently recorded in ecological studies but taxonomic difficulties have in the past prevented non-specialist identification beyond family or subfamily level. Recent works, including genetic studies, have meant that the family is receiving much more attention globally.
Author: P.D. Armitage Publisher: Springer Science & Business Media ISBN: 9401107157 Category : Science Languages : en Pages : 579
Book Description
The dipteran family Chironomidae is the most widely distributed and frequently the most abundant group of insects in freshwater, with rep resentatives in both terrestrial and marine environments. A very wide range of gradients of temperature, pH, oxygen concentration, salinity, current velocity, depth, productivity, altitude and latitude have been exploited, by at least some chironomid species, and in grossly polluted environments chironomids may be the only insects present. The ability to exist in such a wide range of conditions has been achieved largely by behavioural and physiological adaptations with relatively slight morphological changes. It has been estimated that the number of species world-wide may be as high as 15000. This high species diversity has been attributed to the antiquity of the family, relatively low vagility leading to isolation, and evolutionary plasticity. In many aquatic ecosystems the number of chironomid species present may account for at least 50% of the total macroinvertebrate species recorded. This species richness, wide distribution and tolerance to adverse conditions has meant that the group is frequently recorded in ecological studies but taxonomic difficulties have in the past prevented non-specialist identification beyond family or subfamily level. Recent works, including genetic studies, have meant that the family is receiving much more attention globally.
Author: D. A. Murray Publisher: Elsevier ISBN: 1483155498 Category : Science Languages : en Pages : 377
Book Description
Chironomidae: Ecology, Systematics Cytology and Physiology contains the proceedings of the Seventh International Symposium on Chironomidae held in Dublin in August 1979. Separating 47 papers presented in the symposium as chapters, this book focuses on Chironomidae cytology and physiology; systematics and geographic distribution; and ecology, including aspects of lotic, lentic, and pollution biology. Some papers discuss in vitro translation of Balbiani ring RNA from Chironomus tentans; the hemoglobin synthesizing tissue of Chironomus; basic patterns in chromosome evolution of the genus Chironomus (Diptera); taxonomic problems in Holarctic Chironomidae; and importance of the Chironomidae (Diptera) in biological surveillance.
Author: Henk K.M. Moller Pillot Publisher: Hotei Publishing ISBN: 9004278052 Category : Science Languages : en Pages : 314
Book Description
Chironomidae Larvae of the Netherlands and Adjacent Lowlands Chironomids are a group of non-biting midges, the larvae of which are important in aquatic ecosystems. The subfamily Orthocladiinae is well represented in flowing water. This books contains information about their life cycle, feeding behaviour and their response to environmental factors. Chironomidae Larvae, Vol. 3: Orthocladiinae presents a wealth of information for scientific and practical purpose. The subfamily Orthocladiinae is especially well represented in flowing water. Most of the species need a good supply of oxygen and few larvae are bottom dwellers. Many species emerge early in spring and may be scarce in summer. Other species live in stagnant and even temporary water bodies. • information about the life cycle and feeding behaviour of the larvae and their response to environmental factors such as oxygen conditions, current velocity and saprobity • special attention to the interrelations between these factors • general and specific aspects of the systematics, biology and ecology the genera and species • nomenclature and identification An invaluable tool for aquatic ecologists and water quality management. Volume 1: Chironomidae Larvae - General ecology and Tanypodinae Volume 2: Chironomidae Larvae - Biology and ecology of the Chironomini Volume 3: Chironomidae Larvae - Biology and Ecology of the Aquatic Orthocladiinae
Author: Henk K.M. Moller Pillot Publisher: BRILL ISBN: 9004278044 Category : Science Languages : en Pages : 272
Book Description
Chironomids are a group of non-biting midges, the larvae of which are important in aquatic ecosystems. This book is an invaluable tool for aquatic ecologists and water quality management covering the most important tribes Chironomini and Pseudochironomini. It presents a wealth of information for professionals for scientific and practical purpose. The Chironomini larvae are the well-known red bloodworms. They are the most important group of the Chironomidae family in stagnant water and can be very numerous, especially in polluted water. Many species are detritus feeders and play a part in the decomposition of organic material. Most species live in a tube of small particles, attached to the substrate. The author has brought together a wealth of information on the biology and ecology of this group geared especially to water quality assessment. This collected knowledge is required in the interpretation of macro-invertebrate samples. An introduction gives background information on the influence of environmental factors on chironomid larvae. A unique focus on this ecologically important group, useful for professionals and especially important for its potential use in water quality management. Volume 1: Chironomidae Larvae - General ecology and Tanypodinae Volume 2: Chironomidae Larvae - Biology and ecology of the Chironomini Volume 3: Chironomidae Larvae - Biology and Ecology of the Aquatic Orthocladiinae
Author: Henk J. Vallenduuk Publisher: BRILL ISBN: 9004278036 Category : Science Languages : en Pages : 144
Book Description
General ecology of the Chironomids and identification key to the Tanypodinae To most people midges are a nuisance—annoying creatures that can spoil a quiet evening. However, there are those who study these tiny insects with great passion, including the two authors of this book. Because the European Water Framework Directive requires the authorities to ascertain the presence status of macro-invertebrates in surface waters, their work gained more attention. Chironomids are a group of non-biting midges, the larvae of which are important in aquatic ecosystems. A major subfamily of this group are the Tanypodinae. The larvae of most of the species are free-swimming or crawling predators while those of other species burrow in the mud on the bottom. Since they inhabit a variety of habitats they can be found in almost all surface waters in the Netherlands. The authors revised existing identification keys and collected additional information on the biology and ecology of the larvae. Where possible, the identification keys use anatomical characters that are easily observed. The clear descriptions of the development stages, sampling methods and abiotic environmental factors help make this book useful for all students of chironomid larvae, professional or otherwise. This book is especially important for its potential use in water quality management. Volume 1: Chironomidae Larvae - General ecology and Tanypodinae Volume 2: Chironomidae Larvae - Biology and ecology of the Chironomini Volume 3: Chironomidae Larvae - Biology and Ecology of the Aquatic Orthocladiinae
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: Yue Fu Publisher: Academic Press ISBN: 0128152648 Category : Science Languages : en Pages : 355
Book Description
Corynoneura is recognized as one of the most difficult group to classify, and there has been a long history of nomenclatural changes. Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) provides detailed and accurate taxonomy of the Corynoneura generic group and discusses the scientific basis for phylogenetic studies of Chironomidae. Taxonomy of Corynoneura Winnertz (Diptera: Chironomidae) is a useful resource for researchers and practitioners in the field of entomology, systematics, phylogeny, biogeography, biodiversity, and ecology. This book is composed of four main sections: introduction, keys, classification, and zoogeography. Coverage includes a preliminary biogeographic analysis of the worldwide fauna based on the Corynoneura generic group and species distribution data, summaries of the typical features used to classify an adult, and keys to all the Corynoneura generic group and male species of Corynoneura in the world. Over 100 species of Corynoneura are described in detail with morphological figures. - Covers almost all described species of Corynoneura - Provides morphological and phylogenetic study of the Corynoneura - Includes information on fauna from the Neotropical region
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: Antoni Munné Publisher: Springer ISBN: 3319238957 Category : Science Languages : en Pages : 337
Book Description
This book details the experiences gained by the Catalan Water Agency (ACA) in a Mediterranean watershed – the Catalan River Basin District – following the launch of the EU Water Framework Directive (WFD) in the year 2000. Experts in rivers, reservoirs, lakes, wetlands and estuaries present 13 chapters defining tools for water-status assessment specially adapted to Mediterranean conditions. The content of this and the companion volume Experiences from Ground, Coastal and Transitional Water Quality Monitoring: The EU Water Framework Directive Implementation in the Catalan River Basin District (Part II) are the result of an excellent collaboration between the ACA and several Catalan universities and research centers to cope with new challenges provided by the WFD monitoring requirements. The volume serves as a useful guide for environmental managers and scientists engaged in other European as well as Non-European river basins.
Author: P.D. Armitage
Author: P.D. Armitage
Author: D. A. Murray
Author: Henk K.M. Moller Pillot
Author: Henk K.M. Moller Pillot
Author: Henk J. Vallenduuk
Author: Alain Maasri
Author: Yue Fu
Author: Ronald S. Wilson
Author: J. M. Loar
Author: Antoni Munné