Chironomidae (Diptera) and Postglacial Climate at Marion Lake, British Columbia, Canada
- 20 January 1987
- journal article
- research article
- Published by Cambridge University Press (CUP) in Quaternary Research
- Vol. 27 (1), 89-102
- https://doi.org/10.1016/0033-5894(87)90052-4
Abstract
Chironomid (midge) remains analyzed from an 8.95-m-long sediment core from Marion Lake reveal successional changes over the last 12,000 yr since deglaciation. A late-glacial Heterotrissocladius-dominated association characterizes the earliest sediments. Succeeding this community, at the onset of the Holocene, is a Tanytarsini-dominated assemblage. The transition between these communities occurs during a time of rapid climatic amelioration, preceding an early Holocene xerothermic interval. The late-glacial fossil fauna is suggestive of more northerly affinities. Similar sequences have been reported in late-glacial lake sediments elsewhere in North America and in Europe. The composite picture of these chironomid assemblages suggests the gradual retreat of a formerly widely distributed, cold stenothermous fauna. The response of the chironomid community accords well with paleoclimatic inferences based on pollen data at the lake. Subsequent postglacial changes are less pronounced and most are probably attributable to the gradual shallowing of the basin. Chironomid remains from shallow, weakly stratified lakes may yield valuable paleoclimatological data.This publication has 18 references indexed in Scilit:
- Pollen transport and representation in the Coast Mountains of British Columbia. I. Flowering phenology and aerial depositionCanadian Journal of Botany, 1984
- Stratigraphy of Cladocera and Chironomidae in a core from a shallow North German lakeHydrobiologia, 1983
- The impact of acidification on Chironomidae (Diptera) as indicated by subfossil stratificationHydrobiologia, 1982
- A 12 000 year palynological record of temperature and precipitation trends in southwestern British ColumbiaCanadian Journal of Botany, 1981
- Composition of Benthic Invertebrate Communities in Relation to Phytoplankton Populations in Five Subarctic LakesInternational Review of Hydrobiology, 1980
- Two New Species of Protanypus Kieffer, with Keys to Nearctic and Palaearctic Species of the Genus (Diptera: Chironomidae)Journal of the Fisheries Research Board of Canada, 1975
- A palynological study of postglacial vegetation changes in the University Research Forest, southwestern British ColumbiaCanadian Journal of Botany, 1973
- Epibenthic Algal Production and Community Respiration in the Sediments of Marion LakeJournal of the Fisheries Research Board of Canada, 1969
- Temporal and Spatial Differences in Phytoplankton Productivity in Marion Lake, British ColumbiaJournal of the Fisheries Research Board of Canada, 1967
- Biostratigraphic History of Dead Man Lake, Chuska Mountains, New MexicoEcology, 1964