Mutual Climatic Range Reconstructions of Late Quaternary Climates in Beringia

摘要ATM-9612641 Elias，Scott安德森，凯瑟琳科罗拉多大学标题：白令岛晚第四纪气候的相互气候范围重建 这项赠款的目的是综合和量化古气候重建的基础上，从东白令海（阿拉斯加，育空地区领土）和白令陆桥的化石昆虫数据使用相互气候范围（MCR）的方法。 第四纪昆虫化石记录是一种代用数据的来源，为陆地生态系统提供敏感、准确的古气候重建。 与任何单一来源的替代数据一样，昆虫化石的解释不能提供完整的古环境图片。 这项调查将促进跨学科的合作，产生校准，定量古温度数据的化石甲虫组合，将更容易比较的重建的基础上解释其他代理数据，如花粉响应面和传递函数。 本次调查的主要目的是确定晚更新世主要气候转变的性质、时间和强度。 其次，该方法将应用于东白令加，以校准现有数据并提供季节性温度重建。

Abstract ATM-9612641 Elias, Scott Anderson, Katherine University of Colorado Title: Mutual Climatic Range Reconstructions of Late Quaternary Climates in Beringia The aim of this grant is to synthesize and quantify paleoclimate reconstructions on the basis of fossil insect data from Eastern Beringia (Alaska, the Yukon Territory) and the Bering Land Bridge using the Mutual Climate Range (MCR) method. The Quaternary insect fossil record is a source of proxy data that provides sensitive, accurate paleoclimatic reconstructions for terrestrial ecosystems. As with any single source of proxy data, fossil insect interpretations cannot provide the complete paleoenvironmental picture. This investigation will promote interdisciplinary cooperation by generating calibrated, quantitative paleotemperature data for fossil beetle assemblages that will be more readily comparable to the reconstructions based on the interpretation of other proxy data, such as pollen response surfaces and transfer functions. A principal objective of this investigation will be to establish the nature, timing and intensity of the major climatic transitions of the late Pleistocene. Secondly, this method will be applied in Eastern Beringia to calibrate existing data and provide seasonal temperature reconstructions.