Author: Claus Orendt
Publisher:
ISBN: 9783000388422
Category : Chironomidae
Languages : en
Pages : 64

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Book Description

Author: William T. Mason
Publisher:
ISBN:
Category : Chironomidae
Languages : en
Pages : 108

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Book Description

Author:
Publisher:
ISBN:
Category : Chironomidae
Languages : en
Pages : 56

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Book Description

Author: L C V. Pinder
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: J. H. Epler
Publisher:
ISBN:
Category : Chironomidae
Languages : en
Pages : 228

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Book Description

Author: Manabu Sasa
Publisher:
ISBN:
Category : Chironomidae
Languages : en
Pages : 119

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Book Description
Chironomid midges breeding in Lake Biwa were collected by the authors and their collaborators during the period from April 1985 to June 1986 mainly using three different methods; 1) The collection of adults resting or swarming on the lake shore with nets or sucking tubes. 2) The collection of larvae together with bottom sediments and water weeds and their rearing in the laboratory to obtain emerging male adults with which the identification of species was made. 3) The collection of adults with a light trap operated once a week on the shore of the lake. As a result, a total of 71 chironomid species were collected and identified in and around the lake. Of the collected species, 47 belonged to the subfamily Chironominae, 18 to Orthocladinae, 1 to Diamesinae, and 5 to Tanypodinea. The collection included 6 new species and 5 species new to Japan, and morphological and taxonomical accounts have been presented for these species. The seasonal trends of the emergence of two giant midges, Chironomus plumosus and Tokunagayusurika akamusi, from the lake were observed by means of the light trap samples. Ch. plumosus, a cosmopolitan lake midge, seemd [i.e. seemed] to appear three time a year, in early April, June and September, while T. akamusi, a species indigenous to East Asia, appeared only once in November. The collection contained a number of taxonomically interesting species. For example, Biwatendipes motoharui Tokunaga (1965) was collected in large numbers in April resting on the lake shore, and proved to have very noteworthy morphological characters more or less intermediate between the tribes Chironomini and Tanytarsini of the subfamily Chironominae. All the six new species described in this paper, Camptochironomus biwaprimus, Paratanytarsus biwatertius, Tanytarsus kirai, T. biwatrifurcatus, Cricotopus biwannulatus, and Eukiefferiella biwaquarta, showed morphological characteristics not found in previously recorded chironomid species.

Author: P.D. Armitage
Publisher: Springer Science & Business Media
ISBN: 9401107157
Category : Science
Languages : en
Pages : 579

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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: L C V. Pinder
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: D. A. Murray
Publisher: Elsevier
ISBN: 1483155498
Category : Science
Languages : en
Pages : 377

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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: Janice Marie Gillespie
Publisher:
ISBN:
Category : Chironomidae
Languages : en
Pages : 780

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Book Description