气候变化领域集成服务门户(CCPortal): Changes in Pleistocene gastropod faunas on Fuerteventura (Canary Islands) and implications on shifting palaeoenvironmental conditions

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DOI	10.1016/j.quascirev.2019.02.005
	Changes in Pleistocene gastropod faunas on Fuerteventura (Canary Islands) and implications on shifting palaeoenvironmental conditions
	Richter C.; Roettig C.-B.; Wolf D.; Groh K.; Kolb T.; Faust D.
发表日期	2019
ISSN	0277-3791
起始页码	63
结束页码	81
卷号	209
英文摘要	Malacological studies on Middle to Late Pleistocene aeolianite-palaeosurface sequences have been approached in order to detect environmental changes and system shifts on the eastern Canary Islands. Our results reveal that over the last approximately 360 ka, gastropod associations changed fundamentally, allowing the derivation of eight different biozones. The majority of these malacozones and particular species were limited to specific stratigraphic positions and periods. We therefore assume that Quaternary gastropods on Fuerteventura may offer the opportunity to correlate lithostratigraphic units on the basis of key species. Furthermore, environmental conditions could be derived from these associations pointing to colder semi-arid conditions related to the Obelus Zone around 360 to 340 ± 30 ka, a subsequent temperature rise around 340 ± 30 ka leading to moderate and dryer conditions for the Cochlicella Zone, a strong environmental change around 300 ± 30 ka with frequent ephemeral rainfalls for the Pomatias Zone and an increase in temperature and aridity for Late Pleistocene deposits linked to the Rumina Zone. We assume that shifts in malacozonation were triggered by changing climate conditions. Furthermore, the alternation between sand layers and palaeosurfaces is not continuously in conformity with malacozonation. We therefore assume these stratigraphic changes to be not primarily related to climatic forcing, but instead biased by an overlap of multiple factors. As palaeosurfaces indicate favourable conditions (increased gastropod biodiversities and distinct shrub vegetation), we assume that these were caused by increased edaphic moisture due to a better water holding capacity in silty palaeosurfaces, rather than by more humid climate conditions. © 2019 Elsevier Ltd
英文关键词	Canary islands; Land snails; Malacology; Molluscs; Palaeoecology; Palaeosol; Palaeosurfaces; Quaternary; Stratigraphy
语种	英语
scopus关键词	Biodiversity; Landforms; Stratigraphy; Canary islands; Land snails; Malacology; Palaeoecology; Palaeosol; Palaeosurfaces; Quaternary; Molluscs; biodiversity; biostratigraphy; climate conditions; climate forcing; environmental change; environmental conditions; gastropod; mollusc; paleoecology; paleoenvironment; paleosol; Pleistocene; Quaternary; semiarid region; shrub; snail; Canary Islands; Canary Islands; Fuerteventura; Las Palmas; Spain; Cochlicella; Gastropoda; Mollusca; Pomatias; Rumina; Stylommatophora
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/151992
作者单位	Dresden University of Technology, Helmholtzstraße 10, Dresden, 01069, Germany; Hinterbergstr. 15, Bad Dürkheim, D-67098, Germany; University Bayreuth, Universitätsstraße 30, Bayreuth, 95440, Germany
推荐引用方式 GB/T 7714	Richter C.,Roettig C.-B.,Wolf D.,et al. Changes in Pleistocene gastropod faunas on Fuerteventura (Canary Islands) and implications on shifting palaeoenvironmental conditions[J],2019,209.
APA	Richter C.,Roettig C.-B.,Wolf D.,Groh K.,Kolb T.,&Faust D..(2019).Changes in Pleistocene gastropod faunas on Fuerteventura (Canary Islands) and implications on shifting palaeoenvironmental conditions.Quaternary Science Reviews,209.
MLA	Richter C.,et al."Changes in Pleistocene gastropod faunas on Fuerteventura (Canary Islands) and implications on shifting palaeoenvironmental conditions".Quaternary Science Reviews 209(2019).