Howard L. C., Wood P. J., Greenwood M. T., Rendell H. M., Brooks S. J., Armitage P. D., Extence C. A. 2010. Sub-fossil Chironomidae as indicators of palaeoflow regimes: integration into the PalaeoLIFE flow index. J. Quaternary Sci., Vol. 25 pp. 1270–1283. ISSN 0267-8179.
Sub-fossil Chironomidae as indicators of palaeoflow regimes: integration into the PalaeoLIFE flow index†
Article first published online: 23 NOV 2010
Copyright © 2010 John Wiley & Sons, Ltd.
Journal of Quaternary Science
Volume 25, Issue 8, pages 1270–1283, December 2010
How to Cite
Howard, L. C., Wood, P. J., Greenwood, M. T., Rendell, H. M., Brooks, S. J., Armitage, P. D. and Extence, C. A. (2010), Sub-fossil Chironomidae as indicators of palaeoflow regimes: integration into the PalaeoLIFE flow index. J. Quaternary Sci., 25: 1270–1283. doi: 10.1002/jqs.1409
- Issue published online: 25 NOV 2010
- Article first published online: 23 NOV 2010
- Manuscript Accepted: 21 MAR 2010
- Manuscript Revised: 5 MAR 2010
- Manuscript Received: 23 NOV 2009
- river flow;
- Lotic-invertebrate Index for Flow Evaluation;
- non-biting midges;
- aquatic insects
The sub-fossil head capsules of larval Chironomidae have been widely exploited as palaeoecological indicators of lentic ecosystems but their value in the interpretation of the evolution of lotic systems has been underutilised by comparison. Recent research has demonstrated that the remains of Chironomidae are abundant within fluvial sequences and that they offer a valuable record of channel change and floodplain evolution that may complement that derived from existing biological and sedimentological techniques. This paper demonstrates the use of Chironomidae in characterising the palaeoflow regime of a large mid–late Holocene floodplain palaeochannel (5470–4960 to 1530–1350 cal. a BP) of the River Trent (Derbyshire, UK). Using expert knowledge and published information regarding flow preferences, larval Chironomidae were incorporated into the PalaeoLIFE (Lotic-invertebrate Index for Flow Evaluation) methodology. The results clearly demonstrate that the sub-fossil record provided by Chironomidae can be used to characterise changes in the flow regime within palaeochannel sections. At the scale of the channel section, species- and generic-level ecological associations can provide useful information regarding habitat characteristics, including the presence of instream vegetation, mineral substrates and woody debris. The ability to undertake environmental reconstruction and channel evolution history was significantly enhanced through the application of a multi-proxy approach, by incorporating other aquatic insect groups (Trichoptera and Coleoptera) into the PalaeoLIFE metric, together with sedimentological data. Copyright © 2010 John Wiley & Sons, Ltd.