气候变化领域集成服务门户(CCPortal): Eurya stigmosa (Theaceae); a new and extinct record for the Calabrian stage of Madeira Island (Portugal): 40 Ar/ 39 Ar dating; palaeoecological and oceanic island palaeobiogeographical implications

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DOI	10.1016/j.quascirev.2019.01.008
	Eurya stigmosa (Theaceae); a new and extinct record for the Calabrian stage of Madeira Island (Portugal): 40 Ar/ 39 Ar dating; palaeoecological and oceanic island palaeobiogeographical implications
	Góis-Marques C.A.; Mitchell R.L.; de Nascimento L.; Fernández-Palacios J.M.; Madeira J.; Menezes de Sequeira M.
发表日期	2019
ISSN	0277-3791
起始页码	129
结束页码	140
卷号	206
英文摘要	The general dynamic model of oceanic island biogeography (GDM) predicts the immigration, speciation and extinction of terrestrial biota through geological time on oceanic islands. Additionally, the glacial-sensitive model of island biogeography (GSM) also predicts extinction due to eustatic and climate change within islands. However, well-documented and natural pre-Holocene plant extinctions are almost unknown for oceanic islands worldwide. To test these predictions, we have sampled the Early Pleistocene Porto da Cruz lacustrine and fluvial sediments for plant fossils that could confirm the GDM and GSM extinction predictions. Additionally, two new 40 Ar/ 39 Ar geochronological analyses were performed, constraining the age of the sediments to 1.3 Ma (Calabrian). Among the fossils, Eurya stigmosa (R.Ludw.) Mai (Theaceae) seeds were recognised and studied by scanning electron microscopy (SEM). E. stigmosa is the first report of a natural (non-anthropogenic) extinct plant in the fossil record for Madeira Island, and for an oceanic island, confirming the GDM and GSM predictions. Eurya spp. palaeobiogeography indicates wider distribution in Europe until the end of the Pliocene (2.58 Ma), becoming extirpated to small refugia and extinct thereafter. The Madeiran record expands the formerly unknown presence of E. stigmosa to the Macaronesian realm. The new dating of the deposit at 1.3 Ma (Calabrian) means that E. stigmosa in Madeira was already in a refugium. The extinction in Madeira is most probably a combination of island ontogeny and climate change due to Pleistocene glaciations. The palaeoecological role of this extinct shrub or tree is currently unknown, but it was a probably an element of the Madeiran laurel forest, as this community was already present in Madeira at least 1.8 My ago. This new information corroborates the predictive power of GDM and GSM and adds a new view on the importance of studying oceanic island palaeobotany, specially palaeocarpofloras. © 2019 Elsevier Ltd
英文关键词	40 Ar/ 39 Ar geochronology; GDM; GSM; Island refugium; Macaronesia; Madeira Island; Palaeocarpology; Plant extinction
语种	英语
scopus关键词	Climate models; Ecology; Forecasting; Geochronology; Glacial geology; Global system for mobile communications; Plants (botany); Scanning electron microscopy; Early pleistocene; Island biogeography; Island refugium; Macaronesia; Madeira Island; Palaeobiogeography; Palaeocarpology; Terrestrial biota; Climate change; angiosperm; argon-argon dating; Calabrian; climate change; extinction; fluvial deposit; fossil record; geochronology; glaciation; Holocene; island biogeography; new record; ontogeny; paleobiogeography; paleobotany; paleoecology; paleoenvironment; Pleistocene; Pliocene; refugium; Macaronesia; Madeira; Portugal; Eurya; Theaceae
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/152021
作者单位	Departamento de Geologia, Faculdade de Ciências da Universidade de Lisboa and Instituto Dom Luiz (IDL), Laboratório Associado, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal; Madeira Botanical Group (GBM), Faculdade de Ciências da Vida, Universidade da Madeira, Campus da Penteada, Funchal, 9000-390, Portugal; The Natural History Museum Dept. Earth Sciences, The Natural History Museum, London, SW7 5BD, United Kingdom; Advanced Imaging of Materials (AIM) Facility, College of Engineering, Swansea University, Swansea, SA1 8EN, United Kingdom; Island Ecology and Biogeography Group, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s/n, La Laguna, Canary Islands 38200, Spain; CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Ponta Delgada, Azores 9501-801, Portugal
推荐引用方式 GB/T 7714	Góis-Marques C.A.,Mitchell R.L.,de Nascimento L.,et al. Eurya stigmosa (Theaceae); a new and extinct record for the Calabrian stage of Madeira Island (Portugal): 40 Ar/ 39 Ar dating; palaeoecological and oceanic island palaeobiogeographical implications[J],2019,206.
APA	Góis-Marques C.A.,Mitchell R.L.,de Nascimento L.,Fernández-Palacios J.M.,Madeira J.,&Menezes de Sequeira M..(2019).Eurya stigmosa (Theaceae); a new and extinct record for the Calabrian stage of Madeira Island (Portugal): 40 Ar/ 39 Ar dating; palaeoecological and oceanic island palaeobiogeographical implications.Quaternary Science Reviews,206.
MLA	Góis-Marques C.A.,et al."Eurya stigmosa (Theaceae); a new and extinct record for the Calabrian stage of Madeira Island (Portugal): 40 Ar/ 39 Ar dating; palaeoecological and oceanic island palaeobiogeographical implications".Quaternary Science Reviews 206(2019).