Carbon-isotope composition of artiodactyl tooth enamel and its implications for paleodiets

doi:10.3389/fevo.2022.958859

IVPP-IR > 中科院古脊椎所（2000年以后）

	Carbon-isotope composition of artiodactyl tooth enamel and its implications for paleodiets
	Wang, Bian 1,2,3; Badgley, Catherine 2,4
	2022-10-12
发表期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
卷号	10 页码:20
通讯作者	Wang, Bian(bianwang@umich.edu)
摘要	The stable carbon-isotope composition of mammalian tooth enamel is a powerful tool for reconstructing paleodiet and paleoenvironment. Its application in the fossil record relies on a thorough understanding of the isotopic composition of mammalian diets in modern ecosystems. We compiled and evaluated a global dataset of the carbon-isotope values of artiodactyl tooth enamel, supplemented by new samples, for 79 extant species. After correcting for differences in atmospheric carbon-isotope composition, body mass, and digestive physiology, we compared the inferred carbon-isotope values of ingested forage (delta C-13(diet)) among seven feeding categories. The artiodactyl herbivore dietary spectrum is expressed through a wide range of delta C-13(diet) values, with the most depleted mean value in frugivores and the most enriched in obligate grazers. In general, grazing species have a broader range of isotope values than browsing species, suggesting a wider dietary niche breadth. Notably, variable grazers exhibit a bimodal distribution of delta C-13(diet) values, with North American and Asian taxa consuming C-3 diets and African taxa consuming C-4 diets, reflecting the amount of C-4 vegetation in the environment. Variation in delta C-13(diet) values also occurs among terrestrial ecoregions and artiodactyl clades. Grassland ecoregions differ significantly from forest ecoregions. We detected a low but significant phylogenetic signal in the mean delta C-13(diet) values of extant species, with some of the oldest ruminant lineages having maintained C-3 feeding and pure C-4 diets being restricted to two bovid clades. Determining variation in delta C-13(diet) values in different feeding categories and lineages will help refine paleoecological and paleoenvironmental reconstructions from the rich fossil record of artiodactyls.
关键词	stable isotope herbivore ungulates tooth enamel paleodiet
DOI	10.3389/fevo.2022.958859
关键词[WOS]	STABLE-ISOTOPE ; CLIMATE-CHANGE ; LATE MIOCENE ; DIETARY ; ECOLOGY ; RECORD ; PLEISTOCENE ; RECONSTRUCTION ; FRACTIONATION ; MAMMALS
收录类别	SCI
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:000876695400001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22003
专题	中科院古脊椎所（2000年以后）
通讯作者	Wang, Bian
作者单位	1.Univ Michigan, Coll Literature Sci & aRTS, Dept Earth & Environm Sci, Ann Arbor, MI 48103 USA 2.Univ Michigan, Museum Paleontol, Ann Arbor, MI 48103 USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 4.Univ Michigan, Coll Literature Sci & Arts, Dept Ecol & Evolutionary Biol, Ann Arbor, MI USA
推荐引用方式 GB/T 7714	Wang, Bian,Badgley, Catherine. Carbon-isotope composition of artiodactyl tooth enamel and its implications for paleodiets[J]. FRONTIERS IN ECOLOGY AND EVOLUTION,2022,10:20.
APA	Wang, Bian,&Badgley, Catherine.(2022).Carbon-isotope composition of artiodactyl tooth enamel and its implications for paleodiets.FRONTIERS IN ECOLOGY AND EVOLUTION,10,20.
MLA	Wang, Bian,et al."Carbon-isotope composition of artiodactyl tooth enamel and its implications for paleodiets".FRONTIERS IN ECOLOGY AND EVOLUTION 10(2022):20.