Wood macrofossil remains of alder and willow/poplar have been recovered from a sediment sequence in the valley of the Turker Beck in the Vale of Mowbray, North Yorkshire. These remains have yielded radiocarbon dates early in the Devensian Late Glacial (14.7–14k cal a bp), equivalent to the early part of the Greenland Interstadial (GI‐1e) of the GRIP ice‐core record. These are the earliest dates recorded for the presence of alder in the Late Glacial in the British Isles. Associated biological remains have provided a palaeoenvironmental record for this early part of the Greenland Interstadial, generally indicative of open environments dominated by herbaceous taxa on both the wetland and dryland surfaces. However, stands of alder, birch and willow woodland were also present, and indicate the possibility that such tree species survived in cryptic refugia in Britain as elsewhere in northern Europe during the Last Glacial Maximum. The absence of alder pollen at Turker Beck, in a sequence in which its macrofossil remains are relatively abundant, lends support to the view that pollen can be a poor indicator of the presence of tree species in Late Glacial sequences in northern and western Europe.

中文翻译：

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冰川间晚期晚期英国al木（Alnus sp。）的宏观化石证据：对北部隐蔽避难所辩论的影响

from木和柳树/杨树的大型化石遗体是从北约克郡莫布雷谷地特克贝克谷中的沉积物序列中回收的。这些遗骸已经在Devensian晚冰期早期产生的放射性碳日期（14.7-14k CAL一个基点），相当于GRIP冰芯记录的格陵兰岛际（GI-1e）早期。这些是不列颠群岛晚冰川中of木存在的最早记录日期。相关的生物遗骸为格陵兰岛际交错带的这一早期部分提供了古环境记录，通常表明在湿地和旱地表面上开放的环境以草本类群为主。但是，也有stands木，桦木和柳林的林分，表明这种树种有可能在最后一次冰河极盛时期在英国和北欧其他地区的隐蔽避难所中幸存。图尔克贝克（Turker Beck）缺少macro木花粉，按其大型化石残留物相对丰富的顺序，