DOI: 10.1016/j.quascirev.2019.02.027
Scopus记录号: 2-s2.0-85062734266
论文题名: The effects of the “0.9 Ma event” on the Mediterranean ecosystems during the Early-Middle Pleistocene transition as revealed by dental wear patterns of fossil ungulates
作者: Strani F. ; DeMiguel D. ; Alba D.M. ; Moyà-Solà S. ; Bellucci L. ; Sardella R. ; Madurell-Malapeira J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2019
卷: 210 起始页码: 80
结束页码: 89
语种: 英语
英文关键词: Epivillafranchian
; Europe
; Glaciation
; Mesowear
; Microwear
; Palaeoecology
; Palaeoenvironment
; Pleistocene
; Ungulates
Scopus关键词: Earth (planet)
; Ecosystems
; Orbits
; Wear of materials
; Epivillafranchian
; Europe
; Glaciation
; Mesowear
; Micro-wear
; Palaeoecology
; Palaeoenvironment
; Pleistocene
; Ungulates
; Glacial geology
; Ungulata
英文摘要: The Early-Middle Pleistocene Transition (EMPT) (ca. 1.4–0.4 Ma) represents a fundamental transformation in the Earth's climate state, starting at 1.4 Ma with a progressive increase in the amplitude of climatic oscillations and the establishment of strong asymmetry in global ice volume cycles. The progressive shift from a 41kyr–100kyr orbital rhythm was followed by the first major build-up of global ice volume during MIS 24-22, the so-called “0.9 Ma event”. The Vallparadís Section (Vallès-Penedès Basin, NE Iberian Peninsula) is one of the few Pleistocene series in Europe that spans the onset of the transition (from 1.2 to 0.6 Ma), thus representing a pivotal array of localities to investigate the effect of glacial dynamics on environmental conditions in Southern Europe. Here we inspect the effects of the EMPT on terrestrial ecosystems by examining the dietary adaptations (through dental meso- and microwear patterns) of fossil ungulates from the Vallparadís Section dated before and after the “0.9 Ma event”. Results show a steady presence of open grasslands before MIS 22 and more humid conditions at MIS 21. Both before and after MIS 22, a consistent presence of ungulates with long-term patterns that point to a grazing or grass-rich mixed feeding behaviour is observed, while noticeably, short-term patterns point to increased seasonality right after the “0.9 Ma event” glacial period. This increment of seasonality may have had an important effect on the Mediterranean habitats leading to recurring changes in the quality of plant resources available to large herbivores, which in response periodically adopted more mixed feeding behaviours widening their dietary breadth to consume also sub-optimal food items during adverse seasons. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117343
Appears in Collections: 气候变化与战略
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Recommended Citation:
Strani F.,DeMiguel D.,Alba D.M.,et al. The effects of the “0.9 Ma event” on the Mediterranean ecosystems during the Early-Middle Pleistocene transition as revealed by dental wear patterns of fossil ungulates[J]. Quaternary Science Reviews,2019-01-01,210