Terrestrial vegetation and lake aquatic community diversity under climate change during the mid-late Holocene in the Altai Mountains

Terrestrial vegetation and lake aquatic community diversity under climate change during the mid-late Holocene in the Altai Mountains Full article

Journal

Palaeogeography Palaeoclimatology Palaeoecology
ISSN: 0031-0182 , E-ISSN: 1872-616X

Output data

Year: 2023, Pages: 111623 Pages count : 1 DOI: 10.1016/j.palaeo.2023.111623

Tags

Alpha & beta diversity,altai,pollen,sedaDNA,cladocera,lake

Authors

Karachurina S. ^1,2 , Rudaya N.A. ^1,2 , Frolova L.A. ^1,3 , Kuzmina O. ⁴ , Cao X. ⁵ , Chepinoga V.V. ⁶ , Stoof-Leichsenring K. ⁷ , Biskaborn B. ⁷ , Herzschuh U. ⁷ , Nigmatullin N.M. ³ , Vnukovskaya Y.D. ⁴ , Grekov I.M. ⁸ , Pestryakova L.A. ⁹

Affiliations

1	Institute of Archaeology and Ethnography of the Siberian Branch of the Russian Academy of Sciences, 17, Lavrentieva prosp., Novosibirsk, 630090
2	Tomsk State University, 34a, Lenina prospect, Tomsk, 634050
3	Kazan Federal University, 18, Kremliovskaya street, Kazan, 420008
4	Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences, 3, Koptyg prosrect, Novosibirsk, 630090, Russian Federation
5	Group of Alpine Paleoecology and Human Adaptation (ALPHA), State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research (ITPCAS), Chinese Academy of Sciences (CAS)
6	Central Siberian Botanical Garden, 101, Zolotodolinskaya, Novosibirsk, 630090
7	Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research
8	Herzen State Pedagogical University of Russia, 48, Moika embankment, St.Petersburg, 191186
9	North-Eastern Federal University named after M.K. Ammosov, 58, Belinsky Street, Yakutsk, 677000

Using pollen analysis and metabarcoding of plant sedimentary ancient DNA (sedaDNa), we infer the floristic diversity in the vicinity of Lake Balyktukel, Ulagan Plateau, the Altai Mountains, over the last 7 kyr. The SedaDNA method identified 200% more taxa than found by morphological pollen analysis. In particular, it revealed that the dominant tree for the last 7 kyr was Larix rather than Pinus, which was less frequent in the vicinity of Lake Balyktukel. About 7 ka, larch forest mixed with dwarf birch was widespread on the Ulagan Plateau. The period between 5.3 and 3.4 kyr BP was characterized by the maximal spread of larch forest with an understorey cover of Vaccinium vitis-idaea. Pollen-based annual precipitation reconstruction indicates the most humid phase was between 6.95 and 4.3 ka, and generally coincides with maximal phytodiversity. The most bioproductive period of the lake was from 7 to 6 ka. After that, the trophicity of the lake decreased until 4.5 ka. The appearance of Hippuris vulgaris and increase in Ranunculus subgen. Batrachium at about 5.3-5 ka may indicate the extension of shallow-water ecotopes. Between 3.7 and 3.5 ka, the cyanobacterium Anabaena - an indicator of increased organic matter and algal blooms - was widespread. A planktic thermophilic cladoceran Bosmina longirostris appeared after 1.8 ka and colonized the lake, suggesting an increase in lake trophicity. The last 100 years have been characterized by dramatic changes in the cladoceran community reflecting significant warming of climate.

Karachurina S. , Rudaya N.A. , Frolova L.A. , Kuzmina O. , Cao X. , Chepinoga V.V. , Stoof-Leichsenring K. , Biskaborn B. , Herzschuh U. , Nigmatullin N.M. , Vnukovskaya Y.D. , Grekov I.M. , Pestryakova L.A.
Terrestrial vegetation and lake aquatic community diversity under climate change during the mid-late Holocene in the Altai Mountains
Palaeogeography Palaeoclimatology Palaeoecology. 2023. P.111623. DOI: 10.1016/j.palaeo.2023.111623 WOS Scopus РИНЦ OpenAlex

≡ Web of science:	WOS:001053784400001
≡ Scopus:	2-s2.0-85158906853
≡ Elibrary:	54392090
≡ OpenAlex:	W4368348068