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arXiv 0807.2588stat.AP
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古生态数据的时空函数回归

Spatio-temporal Functional Regression on Paleo-ecological Data

Liliane Bel, Avner Bar-Hen, Rachid Cheddadi, Rémy Petit

摘要:

气候对生物多样性的影响是一个重要的生态学问题。各种理论试图将气候变化与等位基因丰富度联系起来,从而预测全球变暖对遗传多样性的影响。我们在欧洲山毛榉林的遗传多样性和温度和降水量的花粉数据库重建曲线之间的关系建模。我们的模型通过线性函数回归将遗传测量与气候曲线联系起来。假设气候变量的相互作用是双线性的。由于数据是地理参考的,我们的方法考虑了观测之间的空间依赖性。这些扩展的实际问题进行了讨论。

英文摘要:

The influence of climate on biodiversity is an important ecological question. Various theories try to link climate change to allelic richness and therefore to predict the impact of global warming on genetic diversity. We model the relationship between genetic diversity in the European beech forests and curves of temperature and precipitation reconstructed from pollen databases. Our model links the genetic measure to the climate curves through a linear functional regression. The interaction in climate variables is assumed to be bilinear. Since the data are georeferenced, our methodology accounts for the spatial dependence among the observations. The practical issues of these extensions are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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