气候变化领域集成服务门户(CCPortal): The bear necessities: A new dental microwear database for the interpretation of palaeodiet in fossil Ursidae

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DOI	10.1016/j.palaeo.2018.10.015
	The bear necessities: A new dental microwear database for the interpretation of palaeodiet in fossil Ursidae
	Pappa S.; Schreve D.C.; Rivals F.
发表日期	2019
ISSN	0031-0182
起始页码	168
结束页码	188
卷号	514
英文摘要	This study presents a new database of dental microwear features for extant bear species, which is used to interpret palaeodiet in brown bear (Ursus arctos) from the late Middle Pleistocene site of Grays Thurrock, U.K. Applying light stereomicroscopy techniques in dental microwear analysis, we highlight, for the first time, that the talonid area of the first lower molar (m1) in extant ursids is most effective in the differentiation of dietary ecospaces. Extant bear species can be separated into different parts of a dietary ecospace revealing microwear features that mirror their dietary preferences. Of particular note is the differentation of ecospaces within modern brown bear populations from different geographical regions and the potential for identifying seasonal variation in diet. The results demonstrate that the diet of thelate Middle Pleistocene brown bear from the interglacial site of Grays Thurrock was closely comparable to that of the modern U. arctos from northern Europe, the American black bear (Ursus americanus), and the sun bear (Helarctos malayanus). This suggests the dietary importance of fibrous food, as well as soft fruits and invertebrates and a small vertebrate component. This finding is in agreement with climatic conditions and habitats inferred for the MIS 9 interglacial. The creation and testing of a dental microwear database for all modern bear species provides a foundation for subsequent application to other extinct Pleistocene bear populations. © 2018
英文关键词	Britain; Interglacial; Microwear; Palaeodiet; Teeth; Ursus
语种	英语
scopus关键词	bear; data interpretation; database; dentition; diet; food preference; fossil record; injury; interglacial; paleoecology; Pleistocene; seasonal variation; tooth; United Kingdom; Helarctos malayanus; Invertebrata; Ursidae; Ursus; Ursus americanus; Ursus arctos; Vertebrata
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151163
作者单位	Department of Earth Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom; Department of Geography, Royal Holloway University of London, Egham, Surrey, TW20 0EX, United Kingdom; ICREA, Pg. Lluís Companys 23, Barcelona, 08010, Spain; Institut Català de Paleoecologia Humana i Evolució Social (IPHES), Campus Sescelades URV (Edifici W3), Tarragona, 43007, Spain; Universitat Rovira i Virgili (URV), Area de Prehistoria, Avinguda de Catalunya 35, Tarragona, 43002, Spain
推荐引用方式 GB/T 7714	Pappa S.,Schreve D.C.,Rivals F.. The bear necessities: A new dental microwear database for the interpretation of palaeodiet in fossil Ursidae[J],2019,514.
APA	Pappa S.,Schreve D.C.,&Rivals F..(2019).The bear necessities: A new dental microwear database for the interpretation of palaeodiet in fossil Ursidae.Palaeogeography, Palaeoclimatology, Palaeoecology,514.
MLA	Pappa S.,et al."The bear necessities: A new dental microwear database for the interpretation of palaeodiet in fossil Ursidae".Palaeogeography, Palaeoclimatology, Palaeoecology 514(2019).