Özet:

In this study, water depth optima, i.e. habitat preferences within a depth gradient, were estimated for mutual midge (Diptera: Nematocera; Ceratopogonidae, Chironomidae) taxa in surface sediment intralake data sets from eastern Finland and Austrian Alps and in a regional data set across Finland. The aim was to investigate how the optima and tolerances differ in these data sets and to discuss whether the possible causal factor for deviance is related to local adaptation, taxa representativeness, or some other factor. A total of 20 mutual taxa were found from the data sets and the estimated optima and tolerances were highly similar, with the exception of three taxa, which had deviating optima in the Austrian lake. The reason for these differences was most likely that the optima were poorly estimated in the Austrian lake due to low abundances and number of occurrences of these taxa. No evidence for intraspecific niche separation or local habitat adaptation was found between the Austrian and Finnish sites, although, interspecific variation in habitats was evident. Therefore, water depth optima estimated from representative number of specimens may be applicable for various ecological, limnological, and paleolimnological purposes. However, when the optima are applied outside the data set’s coverage, the results should be interpreted with caution. In addition, the given optima are not applicable in sites deeper than the sites in the data sets. Luoto, Tomi P. 2012. “Spatial Uniformity in Depth Optima of Midges: Evidence from Sedimentary Archives of Shallow Alpine and Boreal Lakes”. Journal of Limnology 71 (1):e24. https://doi.org/10.4081/jlimnol.2012.e24. More Citation Formats ACM ACS APA ABNT Chicago Harvard MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Downloads Download data is not yet available. Citations List of Cited By : Reconstruction of the hydrologic history of a shallow Patagonian steppe lake during the past 700 yr, using chemical, geologic, and biological proxies Corina Coviaga, Andrea Rizzo, Patricia Pérez, Romina Daga, Daniel Poiré, Gabriela Cusminsky, Sergio Ribeiro Guevara Quaternary Research : 2017 Environmental determinants of chironomid communities in remote northern lakes across the treeline – Implications for climate change assessments Tomi P. Luoto, Marttiina V. Rantala, Annukka Galkin, Milla Rautio, Liisa Nevalainen Ecological Indicators : 2016 Spatial distribution of environmental indicators in surface sediments of Lake Bolshoe Toko, Yakutia, Russia Boris K. Biskaborn, Larisa Nazarova, Lyudmila A. Pestryakova, Liudmila Syrykh, Kim Funck, Hanno Meyer, Bernhard Chapligin, Stuart Vyse, Ruslan Gorodnichev, Evgenii Zakharov, Rong Wang, Georg Schwamborn, Hannah L. Bailey, Bernhard Diekmann Biogeosciences : 2019 The relative importance of spatial and environmental processes in distribution of benthic chironomid larvae within a large and shallow lake Diána Árva, Mónika Tóth, Hajnalka Horváth, Sándor A. Nagy, András Specziár Hydrobiologia : 2015 Insight into the Last Glacial Maximum climate and environments of the Baikal region Pavel E. Tarasov, Boris P. Ilyashuk, Christian Leipe, Stefanie Müller, Birgit Plessen, Philipp Hoelzmann, Svetlana S. Kostrova, Elena V. Bezrukova, Hanno Meyer Boreas : 2019 East European chironomid-based calibration model for past summer temperature reconstructions TP Luoto, B Kotrys, M Płóciennik Climate Research : 2019 Effects of habitat types and within lake environmental gradients on the diversity of chironomid assemblages Diána Árva, András Specziár, Tibor Erős, Mónika Tóth Limnologica : 2015 Consensus among multiple trophic levels during high- and low-water stands over the last two millennia in a northwest Ontario lake Moumita Karmakar, Joshua Kurek, Heather Haig, Brian F. Cumming Quaternary Research : 2014 Late Holocene precipitation and temperature changes in Northern Europe linked with North Atlantic forcing TP Luoto, L Nevalainen Climate Research : 2015 New evidence of warm early-Holocene summers in subarctic Finland based on an enhanced regional chironomid-based temperature calibration model Tomi P. 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Registered in print in Verbania, 7-10-1959, n. 58.

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