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chironomid

Subfossil remains of non-biting midges are widely used in reconstructions of past environmental conditions. Chironomidae are usually used for paleotemperature reconstruction, but other environmental factors, such as lake trophy, aquatic vegetation and human activity, can also be reconstructed using this proxy. In Poland, the first work on subfossil Chironomidae was conducted on Wigry Lake (Czeczuga et al., 1979), and research has greatly increase within the last decade. The past century of chironomid assemblages in Zmarzły Staw (Tatra Mountains) was investigated as a part of MOLAR (Mountain Lake Research) and EMERGE (European Mountain Lake Ecosystems: Regionalisation, diagnostic and socio-economic evaluation) projects (Kubovčík, 2004). The aim of these projects was to evaluate the impact of air pollution on mountain lake fauna. Other research, on timescales of a few centuries, was undertaken in the Łęczyńsko-Włodawskie Lakeland. The project “Subfossil remains of hydrobionts in Polesie lakes sediments as an indicator of habitat state and feeding conditions for ichtiofauna” has continued since 2004. This study focuses on the paleoecological history of Polesie lakes and on the role of chironomids as a food base for fish (see list of publication). During the last two years, an investigation on chironomid stratigraphy in Żabieniec Mire, central Poland, has been performed as a part of a multi-proxy study of sediments in this reservoir, covering the Holocene and late Pleistocene periods. The aim of this study is to reconstruct paleotemperature, as well as evaluate the impact of decreasing pH and humans on the bog ecosystem (Płóciennik 2007).

Photo 1. Tanytarsus lactescens-type

Photo 2. Labrundinia longipalpis


Czeczuga B., Kossacka W. and Niedźwiedzki E., 1979: Ecological changes in Wigry Lake in the postglacial period, Part III. Investigations of the Chironomidae stratygraphy, Polskie Archiwum Hydrobiologii 26 (3): 351-369.

Halkiewicz A., 2005: Subfossil remains of Chironomidae from two shallow lakes representing extreme alternative states, Studia Quaternaria 22: 45-49.

Halkiewicz A., 2005: Czy subfosylne szczątki fitofilnych Chironomidae mogą być pomocne w ocenie stopnia rozwoju roślinności zanurzonej w jeziorach? II Polska Konferencja Paleobotaniki Czwartorzędu, Okuninka, 10-13 May, 40.

Halkiewicz A. and Kornijów R., 2006: Subfosylne szczątki Chironomidae zapisem współczesnej historii płytkiego jeziora, XX Zjazd Hydrobiologów Polskich, Toruń, 5-8 September, 27.

Halkiewicz A. and Kornijów R., in press: Czy Corynocera ambigua nadal występuje w jeziorach poleskich? XV Warsztaty Bentologiczne PTH, Streszczenia referatów.

Kornijów R. and Halkiewicz A., 2006: Biotyczne uwarunkowania sedymentacji w płytkich jeziorach poleskich. X Jubileuszowa Ogólnopolska Konferencja Limnologiczna „Geneza i przemiany jezior obszarów chronionych i poddanych antropopresji”, Czernica, 4-6 October, 83-86.

Kornijów R. and Halkiewicz A., 2007: Uwarunkowania zaburzeń sekwencji odkładania osadów dennych w płytkich jeziorach poleskich w kontekście ich przydatności do badań paleoekologicznych, Studia Limnologica et Telmatologica, 1: 83-86.

Kornijów R. and Halkiewicz A., 2007: Are the Larvae of Propsilocerus lacustris Kieffer 1923 (Diptera: Chironomidae) favoured by Nutrient-Rich Lakes? Aquatic Insects, 29: 183-194.

Kornijów R. and Halkiewicz A., in press: Ocena zasobności zbiorników wodnych w pokarm dla ryb w oparciu o tafocenozy ochotkowatych, XV Warsztaty Bentologiczne PTH, Streszczenia referatów.

Kubovčík V., 2004: Chironomid tanatocenoses (Diptera: Chironomidae) in the sediments of the lakes of the Tatra Mts, Dipteron, 20: 21-22.

Płóciennik, M., 2007: Zmiany środowiska przyrodniczego Wzniesień Łódzkich w vistulianie i holocenie w świetle interdyscyplinarnych badań paleoekologicznych torfowiska Żabieniec. Projekt: Grupa Regionalnego Rozwoju Innowacyjnego – Doktoranci, Akronim “GRRI-D”, Łódź 1 December, 34-35. (In Polish)

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