Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Two Circumpolar Ground Beetle Species (Coleoptera: Carabidae) Were in Hokkaido, Japan in the Late Last Glacial Period

Version 1 : Received: 5 November 2023 / Approved: 6 November 2023 / Online: 6 November 2023 (07:34:09 CET)

How to cite: Shiyake, S. Two Circumpolar Ground Beetle Species (Coleoptera: Carabidae) Were in Hokkaido, Japan in the Late Last Glacial Period. Preprints 2023, 2023110287. https://doi.org/10.20944/preprints202311.0287.v1 Shiyake, S. Two Circumpolar Ground Beetle Species (Coleoptera: Carabidae) Were in Hokkaido, Japan in the Late Last Glacial Period. Preprints 2023, 2023110287. https://doi.org/10.20944/preprints202311.0287.v1

Abstract

Fossil body parts of the two cold-adapted ground beetle species, Elaphrus lapponicus and Diacheila polita, were found from a deposit dated in the late Last Glacial period in Hokkaido, Japan. The paleoenvironment was estimated from their modern distribution and habitat, along with the results of the paleobotanical studies at the site. The temperature was at least 6 degrees lower than modern in summer, and the area around the site was mostly covered with forest tundra, which can currently be seen in areas further north of Hokkaido.

Keywords

Diacheila polita; Elaphrus lapponicus; ground beetles; forest tundra; fossil; Hokkaido; Last Glacial period; paleoenvironment

Subject

Biology and Life Sciences, Insect Science

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