DOI: 10.1016/j.palaeo.2012.10.037
论文题名: Carya as marker for tree refuges in southern Italy (Boiano basin) at the Middle Pleistocene
作者: Orain R. ; Lebreton V. ; Ermolli E.R. ; Combourieu-Nebout N. ; Sémah A.-M.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 369 起始页码: 295
结束页码: 302
语种: 英语
英文关键词: Ecological refuge
; Hickory
; Mediterranean
; Paleoecology
; Paleoenvironment
; Palynology
; Quaternary vegetation
; Tertiary relic
英文摘要: The Carya genus, a tree of the Juglandaceae family, has a restricted geographical distribution today, mainly confined to North America and Southeast Asia and with a precise range of ecological requirements. During the Neogene, Carya had a wide distribution across the northern hemisphere; however, its habitat was reduced progressively in response to Pliocene and Quaternary climate changes. In the Early and Middle Pleistocene paleobotanical records, Carya is considered a relic which testifies to the final climatic deterioration of the Pliocene and to the global effect of the Quaternary climate cycles. The lacustrine and fluvio-palustrine sequence of Boiano (Molise, Italy) records the paleoenvironmental and climate changes since the Middle Pleistocene. The chronological framework is based on several tephra layers, related to known eruptions or directly dated, and indicates that the basal deposits are older than 440. ka. Palynological study of the sedimentary filling highlights vegetation changes from Oxygen Isotopic Stage (OIS) 13 to 2. The Boiano biotope, characterized by a continuous edaphic and climatic humidity, favored the persistence of hygrophilous tree taxa. Thus, Carya is present until the OIS 9, which represents its latest occurrence in Western Europe. The Boiano basin could have been an ecological refuge for the Middle Pleistocene arboreal flora. In fact, the physiography of the basin certainly softened the impacts of climatic deterioration during glacial episodes. Therefore, the late Carya occurrence within the Boiano palynological record in a time period when it is commonly supposed to be extinct from Europe, leads to a consideration of its ecological requirements as a tool for Quaternary paleoenvironmental reconstructions and for identification of refuge areas. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69905
Appears in Collections: 过去全球变化的重建
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作者单位: Département de Préhistoire, Muséum National d'Histoire Naturelle, UMR 7194 CNRS, 1 rue René Panhard, F-75013 Paris, France; Dipartimento di Arboricoltura Botanica e Patologia vegetale, Università di Napoli Federico II, via Università 100, I-80055 Porticini (NA), Italy; Laboratoire des Sciences du Climat et de l'Environnement, UMR 8212 CNRS-CEA-UVSQ, Orme des Merisiers, F-91191 Gif-sur-Yvette, France; Institut de Recherche pour le Développement, LOCEAN - Paléoproxus, UMR 7159, 32 avenue Henri Varagnat, F-93143 Bondy Cedex, France
Recommended Citation:
Orain R.,Lebreton V.,Ermolli E.R.,et al. Carya as marker for tree refuges in southern Italy (Boiano basin) at the Middle Pleistocene[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,369