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Global diversity of non-biting midges (Chironomidae; Insecta-Diptera) in freshwater
- L. Ferrington
- Environmental ScienceHydrobiologia
Although individual species occur in a wide range of habitats from terrestrial to fully aquatic, a total of 339 genera and 4,147 species are unambiguously aquatic in their immature stages.
Freeze tolerance in larvae of the winter-active Diamesa mendotae Muttkowski (Diptera: Chironomidae): a contrast to adult strategy for survival at low temperatures
- R. Bouchard, M. A. Carrillo, S. Kells, L. Ferrington
- Biology, Environmental ScienceHydrobiologia
- 17 June 2006
The results indicate that the larvae of D. mendotae are freeze tolerant with a LLT99, ~−10 °C lower than their minimum SCP, which may be a strategy to provide protection from short-term exposures to ice crystals or to permit diapause within frozen substrates.
Lower lethal temperature for adult male Diamesa mendotae Muttkowski (Diptera: Chironomidae), a winter-emerging aquatic insect
Results show that males of D. mendotae are freeze-intolerant with a mean SCP of −21.6°C which is only 0.1°C lower than its linear interpolated estimated LLT50, confirming that a low SCP is a mechanism that facilitates emergence and adult activity of this species during winter conditions.
Trichomycetes in Argentinean aquatic insect larvae
Investigations of larval aquatic Diptera (Chironomidae, Simuliidae, Culicidae), Coleoptera (Scirtidae), and Plecoptera (Plecoptera) in Buenos Aires Province and three Provinces show promising results.
A PROTOCOL FOR USING SURFACE-FLOATING PUPAL EXUVIAE OF CHIRONOMIDAE FOR RAPID BIO ASSESSMENT OF CHANGING WATER QUALITY
- L. Ferrington, M. Blackwood, C. Wright, N. H. Crisp, J. Kavanaugh, F. J. Schmidt
- Environmental Science
The results indicate that collections of surface- floating pupal exuviae of Chironomidae are more efficient at determining patterns of chi- ronomid community composition in routine field sampling than traditional benthic sampling approaches.
Habitat separation among Chironomidae (Diptera) in Big Springs
Habitat separation among Chironomidae was determined for five habitats in Big Springs, which is located in the high plains of western Kansas. Larvae, pupae, pupal exuviae and adults were…
Reach-scale stream restoration in agricultural streams of southern Minnesota alters structural and functional responses of macroinvertebrates
- C. Dolph, S. Eggert, J. Magner, L. Ferrington, B. Vondracek
- Environmental ScienceFreshwater Science
- 23 February 2015
This work examined whether reach-scale restoration in disturbed agricultural streams was associated with changes in macroinvertebrate community structure, and found no significant difference in total taxon richness or % abundance of EPT taxa between restored and unrestored reaches.
Resistance and resilience of winter-emerging Chironomidae (Diptera) to a flood event: implications for Minnesota trout streams
Disturbances caused by rainfall are common in streams with the impact on stream inhabitants determined by the frequency, intensity, and predictability of the event. Here, we examine the response of…
Analysis of chlordane-impacted streams using chironomid pupal exuviae (Diptera: Chironomidae)
The hypothesis that taxa living in close association to fine organic sediments will be exposed to higher concentrations of chlordane in the stream and more negatively affected than taxa feeding and living in habitats removed from chlordan-bound sediments is supported.
Composition and phenology of Chironomidae (Diptera) from an intermittent stream in Kansas
- Ronald Y. M. Chou, L. Ferrington, B. Hayford, Heidi Smith
- Environmental Science, Biology
- 29 November 1999
As many as 60 % of the species of Chironomidae are facultative or specialist species that characterize this intermittent stream, with winter and early spring emergence dominated by Orthocladiinae.