Download PDF by P. S. Cranston (auth.), Patrick D. Armitage, Peter S.: The Chironomidae: Biology and ecology of non-biting midges

By P. S. Cranston (auth.), Patrick D. Armitage, Peter S. Cranston, L. C. V. Pinder (eds.)

ISBN-10: 9401043086

ISBN-13: 9789401043083

ISBN-10: 9401107157

ISBN-13: 9789401107150

The dipteran relatives Chironomidae is the main generally disbursed and regularly the main ample team of bugs in freshwater, with rep­ resentatives in either terrestrial and marine environments. a really wide selection of gradients of temperature, pH, oxygen focus, salinity, present speed, intensity, productiveness, altitude and range were exploited, by means of at the least a few chironomid species, and in grossly polluted environments chironomids could be the in basic terms bugs current. the facility to exist in one of these wide selection of stipulations has been accomplished principally through behavioural and physiological diversifications with fairly mild morphological adjustments. it's been predicted that the variety of species world-wide could be as excessive as 15000. This excessive species range has been attributed to the antiquity of the kinfolk, particularly low vagility resulting in isolation, and evolutionary plasticity. in lots of aquatic ecosystems the variety of chironomid species current may well account for no less than 50% of the complete macroinvertebrate species recorded. This species richness, huge distribution and tolerance to hostile stipulations has intended that the crowd is usually recorded in ecological experiences yet taxonomic problems have some time past avoided non-specialist id past family members or subfamily point. fresh works, together with genetic stories, have intended that the family members is receiving even more recognition globally.

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Extra info for The Chironomidae: Biology and ecology of non-biting midges

Example text

Strenzke observed that Telmatogeton and allies was a plesiomorphic grouping but, beyond dismembering the Clunioninae, he made no further estimation of its phylogenetic position. 7). The general similarity in habitus of Telmatogeton to Diamesa was noted, but Brundin (1966) confirmed that many characters, including all those of the very generalized larva, the pupal spiraculate thoracic horn, and those of the setose adult (including lack of a postnotal median furrow) were in the plesiomorph state.

The target of complete world inventory is made more elusive by the requirement of users of chironomid taxonomy for descriptions of alllifehistory stages. The responsibility for documentation lies with systematists, who describe, name, classify, identify and elucidate phylogeny and biogeography. Taxonomy, the theory and practice of describing, naming and classifying, is distinguished from systematics, which includes taxonomy but also involves the study of the diversity of and relationships between different organisms.

Species-level information is often lacking. Classifications ought to be predictive, allowing integration and extrapolation of knowledge from well-known species to their lesser-known relatives. However, classifications do not always make sensible predictions: one based upon geographic distribution, pest status or a single life history stage is limited in prediction of other features. Classifications that reflect evolutionary history, or the pattern of nature, have greater predictive value. Several methods are used to deduce pattern and relationships and implement the results into classification.

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The Chironomidae: Biology and ecology of non-biting midges by P. S. Cranston (auth.), Patrick D. Armitage, Peter S. Cranston, L. C. V. Pinder (eds.)

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