نتایج جستجو برای: chironomids

تعداد نتایج: 292  

Journal: :Hydrobiologia 2021

Abstract Many lakes in the northern hemisphere are browning due to increasing concentrations of terrestrial dissolved organic carbon (DOC). The consequences lake littoral invertebrates, however, not fully understood. We analyzed community structure and fatty acid (FA) profiles invertebrates humic (DOC-rich) clear-water Eastern Finland. found higher abundance chironomids (Diptera: Chironomidae) ...

Journal: :Antiquity 2022

Lake settlements, particularly crannogs, pose several contradictions—visible yet inaccessible, widespread geographically restricted, persistent vulnerable. To further our understanding, we developed the integrated use of palaeolimnological (scanning XRF, pollen, spores, diatoms, chironomids, Cladocera, microcharcoal, biogenic silica, SEM-EDS, stable-isotopes) and biomolecular (faecal stanols, b...

2002
David F. Porinchu Glen M. MacDonald

Chironomids are non-biting midge flies belonging to the order Diptera. They are ubiquitous and frequently the most abundant insect found in freshwater ecosystems. Midge flies have three characteristics that are useful in paleoecological studies; they have relatively short lifecycles, the adults are mobile, and the larvae possess chitinous head capsules (Figure 1). The chitinized larval head cap...

2013
Shelley Cook Betty Y.-W. Chung David Bass Gregory Moureau Shuoya Tang Erica McAlister C. Lorna Culverwell Edvard Glücksman Hui Wang T. David K. Brown Ernest A. Gould Ralph E. Harbach Xavier de Lamballerie Andrew E. Firth

We investigated whether small RNA (sRNA) sequenced from field-collected mosquitoes and chironomids (Diptera) can be used as a proxy signature of viral prevalence within a range of species and viral groups, using sRNAs sequenced from wild-caught specimens, to inform total RNA deep sequencing of samples of particular interest. Using this strategy, we sequenced from adult Anopheles maculipennis s....

2017
JAMES M. HAYNES

Macroinvertebrate communities were compared in dredged and undredged areas of the St. Lawrence near Cape Vincent, N.Y., by sampling with a Ponar dredge in 3 seasons. No significant differences existed in numbers of Gammarus spp. and species of Oligochaeta between dredged and undredged areas. The chironomids Pseudochironomus and Stictochironomus spp. were significantly less abundant and Clinotan...

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