ISSN:
1573-5117
Keywords:
Chironomidae
;
macroinvertebrate
;
paleoecology
;
shallowlakes
;
benthic communities
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The relative species composition of subfossile chironomidheadcapsules in surface sediments from ten shallow Danishlakes ofdifferent trophic status were analysed through similarityindicesand multidimensional scaling. It was possible to distinguishbetween high and low productivity lakes by means of subfossileremains. The low productivity shallow lakes (TP〈150 µg Pl−1) were characterised by the taxa Psectrocladius,Pseudochironomus, Microtendipes and Pentaneurini. The highproductivity lakes (TP〉150 µg P l−1) showsimilaritiesto littoral communities in eutrophic stratified lakes and arerepresented by genera such as Cricotopus, Procladius, Microchironomus and Chironomus.In surface samples from Lake Stigsholm subfossile speciescomposition was compared with species composition in samplesoftrapped adult midges and samples of living larvae. Therelativespecies composition between the three sample types variedconsiderably. Samples of living larvae showed a high degree ofvariation within the lake while surface sediment samples ofsubfossile chironomid remains seemed to be a persistent andreliable tool in classification of shallowlakes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1017089912582
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