气候变化领域集成服务门户(CCPortal): Complexities in interpreting chironomid-based temperature reconstructions over the Holocene from a lake in Western Ireland

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DOI	10.1016/j.quascirev.2019.105908
	Complexities in interpreting chironomid-based temperature reconstructions over the Holocene from a lake in Western Ireland
	McKeown M.M.; Caseldine C.J.; Thompson G.; Swindles G.T.; Ivanovic R.F.; Roland T.P.; Valdes P.J.; Potito A.P.
发表日期	2019
ISSN	0277-3791
卷号	222
英文摘要	Investigation of Holocene climate variability remains challenging. This is largely due to chronological uncertainties and complexities associated with proxies and their relationship with climatic drivers. Pertinent questions still exist regarding the Holocene climate in Ireland, particularly in the early Holocene. We present a mean July air temperature reconstruction based on fossil chironomidae (non-biting midge flies), along with an assessment of chironomid functional traits from five guilds (based on their feeding habits) from Lough Nakeeroge, a small glacial lake in western Ireland. These records span the early to late Holocene (c. 10,000–1500 cal yr BP). The chironomid record is supplemented with pollen data to determine landscape vegetation dynamics, and compared to climate model simulations of the same period. As reliable models are essential for robust analysis of long-term climate change, we critically assess the value of the chironomid transfer function and explore the use of chironomid functional traits to infer past climate variability. While this study demonstrates the complexities of chironomid-based temperature reconstruction in Irish lakes, it endeavours to i) disentangle a complicated Holocene climate history through the exploration of other long-term Holocene records from the island; and ii) improve our understanding of environmental responses to climate variability in Ireland. The findings of this study suggest that the interpretation of chironomid-based temperature transfer functions can be challenging. However, our results demonstrate the influence of climate on the functioning of lake ecosystems over the Holocene, with the promising performance of the collector-filterer feeding guild as a palaeothermometer. © 2019 Elsevier Ltd
英文关键词	Chironomidae; Climate models; Functional traits; Holocene; Ireland; Palaeoclimatology; Palaeolimnology; Pollen
语种	英语
scopus关键词	Atmospheric temperature; Climate change; Ecosystems; Lakes; Transfer functions; Chironomidae; Functional traits; Holocenes; Ireland; Palaeoclimatology; Palaeolimnology; Pollen; Climate models; air temperature; climate modeling; climatology; fly; glacial lake; Holocene; paleoclimate; paleolimnology; palynology; transfer function; Ceratopogonidae; Chironomidae
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/151758
作者单位	Manaaki Whenua – Landcare Research, 54 Gerald Street, Lincoln, New Zealand; Palaeoenvironmental Research Unit, School of Geography and Archaeology, National University of Ireland Galway, Galway, Ireland; Centre for Geography, Environment and Society, Penryn Campus, University of Exeter, Penryn, United Kingdom; Department of Geography, College of Life and Environmental Sciences, University of Exeter, Amory Building, Exeter, United Kingdom; School of Geography, University of Leeds, Leeds, United Kingdom; Geography, School of Natural and Built Environment, Queen's University Belfast, United Kingdom; Ottawa-Carleton Geoscience Centre, Department of Earth Sciences, Carleton University, Ottawa, Ontario, Canada; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; School of Geographical Sciences, University of Bristol, Bristol, United Kingdom
推荐引用方式 GB/T 7714	McKeown M.M.,Caseldine C.J.,Thompson G.,et al. Complexities in interpreting chironomid-based temperature reconstructions over the Holocene from a lake in Western Ireland[J],2019,222.
APA	McKeown M.M..,Caseldine C.J..,Thompson G..,Swindles G.T..,Ivanovic R.F..,...&Potito A.P..(2019).Complexities in interpreting chironomid-based temperature reconstructions over the Holocene from a lake in Western Ireland.Quaternary Science Reviews,222.
MLA	McKeown M.M.,et al."Complexities in interpreting chironomid-based temperature reconstructions over the Holocene from a lake in Western Ireland".Quaternary Science Reviews 222(2019).