Methods and growth chambers are described which permit in situ estimates of the growth rates of chironomid larvae inhabiting litter accumulations in lotic habitats. Instantaneous growth rates (IGRs) for larvae of different sizes ranged from 0.01 to 0.24 mg mg-l ash-free dry mass (AFDM) d-l at stream temperatures of 2.9”15.1”C. IGRs were significantly and linearly related to temperature. Regress...

The richness and composition of a mountain-river chironomid larvae assemblage in the Jacuí River basin, Brazil were studied, and compared with other riverine non-biting midge larvae assemblages previously studied in the country. Additionally, the influence of some regional-scale environmental characteristics on the spatial distribution of these assemblages was tested. The specimens were collect...

Floodplain lakes are rarely analysed for fossil chironomids and usually not incorporated in modern chironomid-climate calibration datasets because of the potential complex hydrological processes that could result from flooding of the lakes. In order to investigate this potential influence of river inundations on fossil chironomid assemblages, 13 regularly inundated lakes and 20 lakes isolated f...

Two new taxa of gut fungi within order Harpellales (Kickxellomycotina) are described from a stream in the Tianshan Mountains in northwestern China. These include the new genus and species, Sinotrichium chironomidarum J. Wang, S.Q. Xu & Strongman, and the new species, Stachylina tianensis J. Wang, S.Q. Xu & Strongman, both living in the guts of aquatic chironomid larvae. We also extend the geogr...

Larvae of an African chironomid, Polypedilum vanderplanki, which live in temporal rock pools, are completely dehydrated when the pools dry up and undergo anhydrobiosis until the next rain comes. During the dehydration process, larvae accumulate large amounts of trehalose, which provides effective protection against desiccation because of its high capacity for water replacement and vitrification...

We evaluated food habits of 4 species of spring-migrant calidrid sandpipers in the Prairie Pothole Region (PPR) of North Dakota. Sandpipers foraged in several wetland classes and fed primarily on aquatic dipterans, mostly larvae, and the midge family Chironomidae was the primary food eaten. Larger sandpiper species foraged in deeper water and took larger larvae than did smaller sandpipers. The ...

The occurrence and mass development of macroinvertebrates in drinking water networks is a challenge for pipe management. A current problem the larvae chironomid Paratanytarsus grimmii (mosquito), so-called pest organism that can have severe impacts on quality due to accumulation from parthenogenic reproduction, biofouling other aesthetic reasons. aim this study was develop new practical method ...