| DOI: | 10.1016/j.quascirev.2018.12.012
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| Scopus记录号: | 2-s2.0-85058575497
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| 论文题名: | Temporal variation in cave bear (Ursus spelaeus) dentition: The stratigraphic sequence of Scladina Cave, Belgium |
| 作者: | Charters D.; Abrams G.; De Groote I.; Di Modica K.; Bonjean D.; Meloro C.
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| 刊名: | Quaternary Science Reviews
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| ISSN: | 2773791
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| 出版年: | 2019
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| 卷: | 205 | | 起始页码: | 76
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| 结束页码: | 85
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| 语种: | 英语
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| 英文关键词: | Climatic adaptation
; Geometric morphometrics
; Morphology
; Quaternary
; Teeth
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| Scopus关键词: | Mammals
; Mastication
; Morphology
; Stratigraphy
; Biomechanical performance
; Climatic adaptation
; Geometric morphometrics
; Morphological information
; Morphological variation
; Quaternary
; Stratigraphic sequences
; Teeth
; Caves
; adaptation
; bear
; cave
; climate conditions
; dentition
; geometry
; morphology
; morphometry
; Quaternary
; spatial variation
; stratigraphy
; temporal variation
; tooth
; Belgium
; Mammalia
; Ursus spelaeus
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| 英文摘要: | The supposed herbivorous cave bear (Ursus spelaeus) occupied Europe throughout the Quaternary. Being subject to large spatial variation has led to the intensive study on its geographical polymorphism, generating debates on sub-speciation. However, temporal morphological information on the species is somewhat lacking. Here, we apply geometric morphometrics (GMM) technique to investigate temporal morphological variation in molar size and shape of Ursus spelaeus from different chronostratigraphic sediment units in a geographically confined site (Scladina Cave, Belgium), covering approximately 100,000 years. Our findings show significant morphological variation between groups analysed in both size and shape. M 2 shows a chronological size increase with PCA plots visually expressing differences in all groups, relating to a buccolingual expansion and an increase of the talon masticatory platform through time. Reduction in the M 1 is also shown, possibly to maintain biomechanical performance of dentition for effective mastication, more so in groups relating to the latter stages of the Quaternary. Findings suggest a rapid response to climatic factors constraining consumable food sources, with GMM offering a promising analytical approach in understanding the palaeobiology, palaeoecology and morphological variation in extinct and extant fossil mammals. © 2018 Elsevier Ltd |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/117401
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| Appears in Collections: | 气候变化与战略
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| Recommended Citation: | |
Charters D.,Abrams G.,De Groote I.,et al. Temporal variation in cave bear (Ursus spelaeus) dentition: The stratigraphic sequence of Scladina Cave, Belgium[J]. Quaternary Science Reviews,2019-01-01,205
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