Cladocera Responses to the Climate-Forced Abrupt Environmental Changes Related to the Late Glacial/Holocene Transition

This article aims to trace in detail the periods of rapid changes during Late Glacial period based on a subfossil Cladocera analysis and palynological, geochemical, statistical analysis. At end Older Dryas, water level reservoir was low, with quite cold waters inconvenient conditions for developing Cladocera-dominated cold-tolerant species. The beginning Alleröd is marked by increasing vegetation density rising temperature, favorable rare its end, there large diversity species, along deep rather mesotrophic nature body. Younger Dryas shift back similar those noticed Dryas. Holocene manifested increase number species abundance planktonic forms that appeared before onset. high resolution research (1 cm sampling) allowed us set up more precisely boundaries between stadials interstadials find some which were found sediment earlier than previous studies.