ORIGINAL ARTICLE
Cladocera record from Budzewo
(Skaliska Basin, north-eastern Poland)
1 | Institute of Geological Sciences, Polish Academy of Sciences, Research Centre in Warsaw,
Twarda 51/55, 00-818 Warszawa, Poland |
Online publication date: 2013-06-26
Publication date: 2013-06-26
Acta Palaeobotanica 2013; 53(1): 93–97
KEYWORDS
ABSTRACT
The sediment sequence from Budzewo (Skaliska Basin, north-eastern Poland) contains cladoceran
records beginning from the early Holocene. A total of 33 Cladocera taxa were identifi ed in the entire sequence.
The cladoceran fauna of the initial stage of palaeolake history in the Preboreal shows high similarity to early
Holocene Estonian and Scandinavian records. Benthic Alonella nana was dominant at that time. After that,
probably during the Boreal and early Atlantic periods, Cladocera species diversity increased and planktonic
forms (bosminas) became dominant, pointing to a rise of water level. The species composition indicates that the
lake was meso- to eutrophic. The lake began to shallow during the middle Atlantic. The process was completed
in the Subboreal and the lake transformed into a bog. The fall in water level and fi nally the terrestrialization of
the lake is correlated with similar processes recorded in other sediment sequences in northern Poland, suggesting
that this event may have been driven by regional factors such as lower precipitation.
RELATED ARTICLE