TY  - JOUR
A1  - Andreev, Andrei
A1  - Nazarova, Larisa B.
A1  - Lenz, Marlene M.
A1  - Böhmer, Thomas
A1  - Syrykh, Ludmila
A1  - Wagner, Bernd
A1  - Melles, Martin
A1  - Pestryakova, Luidmila A.
A1  - Herzschuh, Ulrike
T1  - Late Quaternary paleoenvironmental reconstructions from sediments of Lake Emanda (Verkhoyansk Mountains, East Siberia)
T2  - Journal of quaternary science : JQS
N2  - Continuous pollen and chironomid records from Lake Emanda (65 degrees 17'N, 135 degrees 45'E) provide new insights into the Late Quaternary environmental history of the Yana Highlands (Yakutia). Larch forest with shrubs (alders, pines, birches) dominated during the deposition of the lowermost sediments suggesting its Early Weichselian [Marine Isotope Stage (MIS) 5] age. Pollen- and chironomid-based climate reconstructions suggest July temperatures (T-July) slightly lower than modern. Gradually increasing amounts of herb pollen and cold stenotherm chironomid head capsules reflect cooler and drier environments, probably during the termination of MIS 5. T-July dropped to 8 degrees C. Mostly treeless vegetation is reconstructed during MIS 3. Tundra and steppe communities dominated during MIS 2. Shrubs became common after similar to 14.5 ka BP but herb-dominated habitats remained until the onset of the Holocene. Larch forests with shrub alder and dwarf birch dominated after the Holocene onset, ca. 11.7 ka BP. Decreasing amounts of shrub pollen during the Lateglacial are assigned to the Older Dryas and Younger Dryas with T-July similar to 7.5 degrees C. T-July increased up to 13 degrees C. Shrub stone pine was present after similar to 7.5 ka BP. The vegetation has been similar to modern since ca. 5.8 ka BP. Chironomid diversity and concentration in the sediments increased towards the present day, indicating the development of richer hydrobiological communities in response to the Holocene thermal maximum.
KW  - chironomids
KW  - environmental reconstructions
KW  - Late Quaternary
KW  - pollen
Y1  - 2022
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/64056
SN  - 0267-8179
SN  - 1099-1417
VL  - 37
IS  - 5
SP  - 884
EP  - 899
PB  - Wiley
CY  - New York, NY [u.a.]
ER  -