arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1407.2425q-bio.PEcond-mat.stat-mechq-bio.QM
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基于有/无热带森林数据的空间最大熵模型

Spatial maximum entropy modeling from presence/absence tropical forest data

Matteo Adorisio, Jacopo Grilli, Samir Suweis, Sandro Azaele, Jayanth R. Banavar, Amos Maritan

摘要:

了解生态系统的集合以估计不同空间尺度上的物种数量是一个具有挑战性的问题。到目前为止,最大熵方法缺乏以显式方式考虑空间的重要特征。我们提出了一个空间显式的最大熵模型,适合于描述空间格局,如物种面积关系和地方病面积关系。从存在/不存在数据中提取的最小信息开始,我们比较了两个模型的行为,考虑每个物种的发生或缺乏空间相关性的信息。我们的方法使用的信息在较短的空间尺度来推断在较大的空间组织。我们还假设一个可能的生态解释的有效的相互作用,我们用来表征空间集群。

英文摘要:

Understanding the assembly of ecosystems to estimate the number of species at different spatial scales is a challenging problem. Until now, maximum entropy approaches have lacked the important feature of considering space in an explicit manner. We propose a spatially explicit maximum entropy model suitable to describe spatial patterns such as the species area relationship and the endemic area relationship. Starting from the minimal information extracted from presence/absence data, we compare the behavior of two models considering the occurrence or lack thereof of each species and information on spatial correlations. Our approach uses the information at shorter spatial scales to infer the spatial organization at larger ones. We also hypothesize a possible ecological interpretation of the effective interaction we use to characterize spatial clustering.

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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