Cryptic or mystic? Glacial tree refugia in northern Europe.
Cryptic or mystic? Glacial tree refugia in northern Europe.
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DOI：
10.1016/j.tree.2013.09.001
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发表时间：
2013-12
影响因子：
16.8
通讯作者：
P. Tzedakis;B. Emerson;B. Emerson;G. Hewitt
中科院分区：
文献类型：
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作者：
P. Tzedakis;B. Emerson;B. Emerson;G. Hewitt
在这里，我们研究树木避难所的证据在北方欧洲在晚盛冰期（LPG）间隔的最大树木范围收缩。我们的综述强调了遗传数据往往模棱两可的性质，以及由于温暖的气候模型偏差而高估潜在树木分布的倾向，并揭示了宏化石和花粉证据的趋同。结果表明，北纬45°以北没有温带树木，北方树木的分布呈东西向不对称，北纬46°以北的西欧没有树木，而在北纬49°以北的东欧和芬诺斯堪的纳维亚冰盖以东的高纬度地区，北方树木的数量仍然有限。这些结果对当前欧洲遗传多样性模式、物种迁移能力和保护策略的思考具有启示意义。
Here, we examine the evidence for tree refugia in northern Europe during the Late Pleniglacial (LPG) interval of maximum tree-range contraction. Our review highlights the often equivocal nature of genetic data and a tendency to overestimate potential tree distributions due to warm climate-model bias, and also reveals a convergence of macrofossil and pollen evidence. What emerges is the absence of temperate trees north of 45°N and a west–east (W–E) asymmetry in boreal tree distribution, with a treeless Western Europe north of 46°N, while restricted boreal populations persisted in Eastern Europe up to 49°N, and higher latitudes east of the Fennoscandian ice-sheet. These results have implications for current thinking on European genetic diversity patterns, species migration capacity, and conservation strategies.