Intra-individual variation in stable carbon (δ13C) and nitrogen (δ15N) isotopes in mandibles of modern caribou of Qamanirjuaq (Rangifer tarandus groenlandicus) and Banks Island (Rangifer tarandus pearyi): Implications for tracing seasonal and temporal changes in diet
Intra-individual variation in stable carbon (δ13C) and nitrogen (δ15N) isotopes in mandibles of modern caribou of Qamanirjuaq (Rangifer tarandus groenlandicus) and Banks Island (Rangifer tarandus pearyi): Implications for tracing seasonal and temporal changes in diet
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Qamanirjuaq (Rangifer tarandus groenlandicus) 和班克斯岛 (Rangifer tarandus pearyi) 现代驯鹿下颌中稳定碳 (δ13C) 和氮 (δ15N) 同位素的个体内变化:对追踪饮食季节性和时间变化的影响
DOI:
10.1002/oa.1220
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发表时间:
2012
影响因子:
1
通讯作者:
A. Pike-Tay
中科院分区:
文献类型:
--
作者:
Drucker;Hobson;Münzel;A. Pike-Tay
Intra‐individual variations in carbon (δ13C) and nitrogen (δ15N) isotope measurements of dentine collagen in ungulate teeth can be related to diet and environmental changes at different periods during the life of the animal. A protocol of serial sampling of first, second and third molar roots was applied to modern caribou (17–27 months old) of the Qamanirjuaq herd (Rangifer tarandus groenlandicus), Canada. Based on a previous study, we predicted that M2 would reflect winter, M3 summer and M1 a complete year in terms of the isotopic record. Relatively high δ15N values (ca. 6 to 8‰), previously attributed to winter stress, were found in different molars of different specimens, reflecting a period of growth between April 1966 to April 1967. Previous results on other teeth from the same population confirmed that a high δ15Ncollvalue signal corresponded to the winter of 1966/67. This temporary increase in δ15N value was probably linked to diet and/or environmental change. Collagen from M1 reflects the first winter whereas M2 and M3 reflect the second winter of life of young caribou. A longer time record including summer is represented by the bone collagen of the mandible. Results obtained on molar roots and mandible bone of the modern caribou of Banks Island herd (Rangifer tarandus pearyi) confirmed this seasonal record. Such collagen isotopic analysis on M1, M2 and M3 roots and jawbone can be applied to reindeer found in archaeological sites. Mandibles retaining deciduous premolars are preferable to avoid the possible loss of the winter tooth signal observed in animals older than 2 years. Copyright © 2010 John Wiley & Sons, Ltd.
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影响因子:
5
作者:
Fricke, HC;Clyde, WC;O'Neil, JR
通讯作者:
O'Neil, JR
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
Lucie Lavigueur;C. Barrette
通讯作者:
C. Barrette
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
Ian Albert McLeman
通讯作者:
Ian Albert McLeman
DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
C. Shank;P. Wilkinson;D. F. Penner
通讯作者:
D. F. Penner