Responses to rapid warming at Termination 1 a at Gerzensee (Central Europe): Primary succession, albedo, soils, lake development, and ecological interactions

Ammann, Brigitta and van Raden, Ulrike J. and Schwander, Jakob and Eicher, Ueli and Gilli, Adrian and Bernasconi, Stefano M. and van Leeuwen, Jacqueline F. N. and Lischke, Heike and Brooks, Stephen J. and Heiri, Oliver and Nováková, Katařina and van Hardenbroek, Maarten and von Grafenstein, Ulrich and Belmecheri, Soumaya and van der Knaap, W. O. and Magny, Michel and Eugster, Werner and Colombaroli, Daniele and Nielsen, Ebbe and Tinner, Willy and Wright, Herbert E.. (2013) Responses to rapid warming at Termination 1 a at Gerzensee (Central Europe): Primary succession, albedo, soils, lake development, and ecological interactions. Palaeogeography, Palaeoclimatology, Palaeoecology, 391 (Part B). pp. 111-131.

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/69358/

Downloads: Statistics Overview


The transition from the Oldest Diyas to the Bolling around 14,685 cal yr BP was a period of extremely rapid climatic warming. From a single core of lake marl taken at Gerzensee (Switzerland) we studied the transition in stable isotopes of oxygen and carbon on bulk sediment and charophyte remains, as well as on monospecific samples of ostracods, after Pisidium a; in addition pollen, chironomids, and Cladocera were analyzed. The delta O-18 record serves as an estimate of mean air temperature, and by correlation to the one from NGRIP in Greenland it provides a timescale.The timing of responses: The statistically significant zone boundaries of the biostratigraphies are telescoped at the rapid increase of about 3%. in delta O-18 at the onset of Bolling. Biotic responses may have occurred within sampling resolution (8 to 16 years), although younger zone boundaries are less synchronous. Gradual and longer-lasting responses include complex processes such as primary or secular succession. During the late-glacial interstadial of Bolling and Allerod, two stronger and two weaker cool phases were found.Biological processes involved in the responses occurred on levels of individuals (e.g. pollen productivity), of populations (increases or decreases, immigration, or extinction), and on the ecosystem level (species interactions such as facilitation or competition).Abiotic and biotic interactions include pedogenesis, nitrogen-fixation, nutrient cycling, catchment hydrology, water chemistry of the lake and albedo (controlled by the transition from tundra to forest). For the Swiss Plateau this major change in vegetation induced a change in the mammal fauna, which in turn led to changes in the tool-making by Paleolithic people.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Geoökologie (Heiri)
UniBasel Contributors:Heiri, Oliver
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:16 Nov 2020 15:52
Deposited On:16 Nov 2020 15:52

Repository Staff Only: item control page