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Science Advances 14 April 2021

Breakthrough in purification of fossil pollen for dating of sediments by a new large-particle on-chip sorter

Kasai Y, Leipe C, Saito M, Kitagawa H, Lauterbach S, Brauer A, Tarasov PE, Goslar T, Arai F, Sakuma S.

Particle sorting is a fundamental method in various fields of medical and biological research. However, existing sorting applications are not capable for high-throughput sorting of large-size (>100 micrometers) particles. Here, we present a novel on-chip sorting method using traveling vortices generated by on-demand microjet flows, which locally exceed laminar flow condition, allowing for high-throughput sorting (5 kilohertz) with a record-wide sorting area of 520 micrometers. Using an activation system based on fluorescence detection, the method successfully sorted 160-micrometer [...]

Andrea Hiob2022-05-03T12:17:48-06:00Categories: Publications, Journal Articles|Tags: Leipe, Tarasov|

Science Advances September 2019

Christian Leipe article published in Science Advances

Leipe C, Long T, Sergusheva EA, Wagner M, Tarasov PE

Congratulations to Dr. Christian Leipe on his recent article published in Science Advances! Also congratulations to Dr. Pavel Tarasov, who contributed as co-author, and states that this new technique will be of great help in dating lake and peat sediment archives in the Lake Baikal region. Title: Breakthrough in purification of fossil pollen for dating of sediments by a new large-particle on-chip sorter Authors: Kasai Y, Leipe C, Saito M, Kitagawa H, Lauterbach S, Brauer A, Tarasov PE, Goslar [...]

Andrea Hiob2021-04-21T13:00:16-06:00Categories: News|Tags: Leipe, Tarasov|

Journal of Archaeological Science: Reports April 2021

Building a high-resolution chronology for northern Hokkaido – A case study of the Late Holocene Hamanaka 2 site on Rebun Island, Hokkaido (Japan)

Junno A, Dury JPR, Leipe C, Wagner M, Tarasov PE, Hirasawa Y, Jordan PD, Kato H

Archaeological radiocarbon dating in coastal northern Hokkaido is challenged by the marine reservoir effect and the scarcity of materials with terrestrial carbon sources. This has contributed to gaps and general uncertainty in the timing of the region's culture-historical periods. The Late Holocene site of Hamanaka 2 on Rebun Island, featuring a stratified shell midden context with excellent preservation of organic remains, provides an ideal setting for addressing this issue. A Bayesian chronological model was deployed to study the [...]

Erin2022-04-05T11:47:17-06:00Categories: Publications, Journal Articles|Tags: Leipe, Jordan, Tarasov, Wagner|

Journal of Quaternary Science March 2021

Not herbs and forbs alone: pollen‐based evidence for the presence of boreal trees and shrubs in Cis‐Baikal (Eastern Siberia) derived from the Last Glacial Maximum sediment of Lake Ochaul

Kobe F, Leipe C, Shchetnikov AA, Hoelzmann P, Gliwa J, Olschewski P, Goslar T, Wagner M, Bezrukova EV, Tarasov PE

A new accelerator mass spectrometry (AMS)‐dated sedimentary record from Lake Ochaul (54°14′N, 106°28′E; 641 m a.s.l.) in Eastern Siberia covers the interval from ca. 27 850 to 20 400 cal a bp at ca. 180‐year resolution and contributes to a better understanding of the complex spatial vegetation pattern during the Last Glacial Maximum (LGM). Non‐arboreal pollen taxa are abundant in the pollen assemblages (mean value ca. 92.6%), but boreal trees are represented by all major taxa that grow in the lake catchment today, [...]

Erin2022-03-01T13:10:22-07:00Categories: Publications, Journal Articles|Tags: Leipe, Kobe, Tarasov, Wagner|

Quaternary Science Reviews February 2020

BAP/BHAP authors article published in Journal of Archaeological Science: Reviews

Shoda S, Lucquin A, Yanshina O, Kuzmin Y, Shevkomud I, Medvedev V, Derevianko E, Lapshina Z, Craig OE, Jordan PD

Congratulations to BAP/BHAP authors on the recent publication of their article in Journal of Archaeological Science: Reviews! Title: Building a high-resolution chronology for northern Hokkaido – A case study of the Late Holocene Hamanaka 2 site on Rebun Island, Hokkaido (Japan) Authors: Ari Junno, Jack P.R. Dury, Christian Leipe, Mayke Wagner, Pavel E. Tarasov, Yu Hirasawa, Peter D. Jordan, Hirofumi Kato. Abstract: Archaeological radiocarbon dating in coastal northern Hokkaido is challenged by the marine reservoir effect and the scarcity [...]

Andrea Hiob2021-03-22T10:07:30-06:00Categories: News|Tags: Leipe, Jordan, Tarasov, Wagner|

Science Advances September 2019

Franziska Kobe article published in Journal of Quaternary Science

Leipe C, Long T, Sergusheva EA, Wagner M, Tarasov PE

Congratulations to Franziska Kobe on her recent article published in Journal of Quaternary Science! Ms. Kobe is a PhD student at the Freie Universitaet Berlin under the supervision of Dr. Pavel Tarasov. Also congratulations to our other BAP team members who contributed as co-authors. Title: Not herbs and forbs alone: Pollen-based evidence for the presence of boreal trees and shrubs in Cis-Baikal (Eastern Siberia) derived from the Last Glacial Maximum sediment of Lake Ochaul Authors: Franziska Kobe, Christian [...]

Andrea Hiob2021-03-22T10:09:12-06:00Categories: News|Tags: Wagner, Leipe, Kobe, Tarasov|

Quaternary International December 2020

Environments during the spread of anatomically modern humans across Northern Asia 50-10 cal kyr BP: What do we know and what would we like to know?

Tarasov PE, Leipe C, Wagner M

Northern Asia (here, the Russian Federation east of the Urals) played a key role in the spread of anatomically modern humans (AMH) across the Eurasian continent during the Upper Palaeolithic (UP). This time interval witnessed the climatically harshest and most variable part of the last glacial epoch when AMH spread to all continents, with the exception of ice-covered Antarctica, thus raising questions about how humans and environments interacted. Our review of available proxy records shows that the study [...]

Andrea Hiob2021-08-03T10:26:04-06:00Categories: Publications, Journal Articles|Tags: Leipe, Tarasov, Wagner|

Science Advances September 2019

Pavel Tarasov article published in Quaternary International

Leipe C, Long T, Sergusheva EA, Wagner M, Tarasov PE

Some great BAP news to share after many months of slow news days! Congratulations to Drs. Pavel Tarasov, Christian Leipe and Mayke Wagner on the recent publication of their article in Quaternary International! Title: Environments during the spread of anatomically modern humans across Northern Asia 50-10 cal kyr BP: What do we know and what would we like to know? Authors: Pavel E. Tarasov, Christian Leipe, Mayke Wagner. Abstract: Northern Asia (here, the Russian Federation east of the [...]

Andrea Hiob2021-03-22T10:22:46-06:00Categories: News|Tags: Leipe, Tarasov, Wagner|

Science Advances September 2019

Franziska Kobe article published in Archaeological Research in Asia

Leipe C, Long T, Sergusheva EA, Wagner M, Tarasov PE

Congratulations to Franziska Kobe on her recent article published in Archaeological Research in Asia! Ms. Kobe is a PhD student at the Freie Universitaet Berlin under the supervision of Dr. Pavel Tarasov, and it is her first PhD-related paper! Also congratulations to our other BAP team members who contributed as co-authors. Title: Holocene vegetation and climate history in Baikal Siberia reconstructed from pollen records and its implications for archaeology Authors: Kobe F, Bezrukova EV, Leipe C, Shchetnikov AA, [...]

Andrea Hiob2020-06-19T11:17:20-06:00Categories: News|Tags: Leipe, Kobe, Tarasov, Wagner|

Archaeological Research in Asia September 2020

Holocene vegetation and climate history in Baikal Siberia reconstructed from pollen records and its implications for archaeology

Kobe F, Bezrukova EV, Leipe C, Shchetnikov AA, Goslar T, Wagner M, Kostrova SS, Tarasov PE

Past research has greatly improved our understanding of palaeoenvironmental changes in the Lake Baikal Region, but at the same time has indicated intra-regional variations in this vast study area. Here we present a new AMS-dated late glacial–middle Holocene (ca. 13,500–4000 cal. yr BP) pollen record from Lake Ochaul (54°14′N, 106°28′E; altitude 641 m a.s.l.) situated in the less-studied area of Cis-Baikal and compare reconstructed vegetation and climate dynamics with the published environmental history of Trans-Baikal based on the pollen record from [...]

Erin2020-12-02T10:25:28-07:00Categories: Journal Articles, Publications|Tags: Leipe, Kobe, Tarasov, Wagner|