Journal
QUATERNARY INTERNATIONAL
Volume 245, Issue 2, Pages 218-224Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.quaint.2011.05.007
Keywords
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Funding
- Humboldt foundation
- University of Tubingen
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The Late-glacial and early Holocene periods are characterized by significant climatic and environmental changes that result in a global warming. In this context, typical glacial species such as reindeer (Rangifer tarandus) were extirpated from the southern regions of western Europe following different timing according to the geographical location. A new direct radiocarbon date was performed on a reindeer metatarsus from the Mesolithic site of Rottenburg-Siebenlinden in the Swabian Jura. The result (9225 +/- 35 BP: 10,270-10,500 cal BP) confirmed the survival of this species during the early Holocene in southwestern (SW) Germany. Collagen C-13 and N-15 abundances (delta C-13(coll) and delta N-15(coll)) were measured on this Holocene reindeer and on Late-glacial reindeer from Magdalenian sites - Petersfels, Schussenquelle, Felsstalle and Kesslerloch - of the same region to investigate their diet and environment. During the first part of the Late-glacial (ca. 16.6-14 ka cal BP), the delta C-13(coll) values of the SW Germany reindeer were slightly lower than those found in reindeer from Stellmoor and Meiendorf sites in northern Germany, probably as a result of lower lichen consumption and higher humidity. Lower delta N-15(coll) values in SW Germany reindeer compared to southwestern France could be linked to less advanced soil maturation as the inheritance of higher permafrost intensity linked to harsher climatic conditions during the Late-Glacial Maximum. In SW Germany, the early Holocene reindeer had a higher delta N-15(coll) value (4%) than those of its late-glacial counterparts (1.2-3.3 parts per thousand), which would reflect the expected increase in N-15 abundances of soils and plants with higher temperature. However, relatively high delta N-15 values (ca. 4-5 parts per thousand) were also found in the reindeer of southwestern England as early as during the Younger Dryas, the last cold stadial preceding the early Holocene. In contrast, northern and western Germany reindeer exhibited increasing delta C-13(coll) values but stable delta N-15(coll) values during the Younger Dryas compared to the previous Bolling/Allerod interstadial. This could indicate a slower response in N-15(coll) than in C-13(coll) abundances of ancient reindeer to climatic changes. Finally, the reindeer of southern England and SW Germany survived the Younger Dryas/early Holocene transition in a relatively open landscape as confirmed by the delta C-13(coll) values measured on coeval deer. (C) 2011 Elsevier Ltd and INQUA. All rights reserved.
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