Universität zu Köln

Berg, Sonja ORCID: 0000-0002-9629-6007, White, Duanne A., Hermichen, Wolf-Dieter and Emmerson, Louise (2019). Late Holocene colonisation of snow petrels (Pagodroma nivea) of the Prince Charles Mountains, Antarctica. Polar Biol., 42 (6). S. 1167 - 1174. NEW YORK: SPRINGER. ISSN 1432-2056

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Abstract

The effect of long-term environmental changes on sea bird populations with respect to changes in their breeding and foraging habitats is difficult to assess due to the scarcity of records that go beyond direct observational data. Information on the past distribution of snow petrel Pagodroma nivea (Forster) breeding colonies can be obtained from deposits of their proventricular stomach oil, so-called Antarctic mumiyo. In our study, we present C-14 ages of mumiyo deposits from northern and southern Prince Charles Mountains, East Antarctica, to reconstruct the timing of snow petrel occupation at these inland breeding localities. C-14 ages indicate a minimum age of snow petrel occupation of 3680calyear bp. The colonisation post-dates the de-glacial local and regional ice sheet retreat by several thousand years. This either suggests limited accessibility of the inland sites or a lack of suitable nesting locations prior to the Mid-Holocene and/or changes in the marine habitat affecting access to the foraging grounds. C-14 ages of mumiyo deposits from Vestfold and Larsemann Hills to the east of Prydz Bay point to a regional pattern of snow petrel dispersal starting in the Mid-Holocene. This suggests environmental changes in the foraging habitat to be the most likely drivers for extending breeding site locations of snow petrels to more inland ice-free areas in the Prydz Bay Region.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Berg, Sonja UNSPECIFIED orcid.org/0000-0002-9629-6007 UNSPECIFIED White, Duanne A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hermichen, Wolf-Dieter UNSPECIFIED UNSPECIFIED UNSPECIFIED Emmerson, Louise UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-146743
DOI:	10.1007/s00300-019-02509-0
Journal or Publication Title:	Polar Biol.
Volume:	42
Number:	6
Page Range:	S. 1167 - 1174
Date:	2019
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1432-2056
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EAST ANTARCTICA; SOUTHERN-OCEAN; HILLS; C-14 Multiple languages Biodiversity Conservation; Ecology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14674