Climate defined but not soil-restricted: the distribution of a Neotropical tree through space and time
Climate defined but not soil-restricted: the distribution of a Neotropical tree through space and time
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DOI：
10.1007/s11104-021-05202-6
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发表时间：
2021-11
期刊：
影响因子：
4.9
通讯作者：
F. Alvarez;P. Morandi;B. H. Marimon‐Junior;Reginal Exavier;Igor Araújo;Lucas H. Mariano;A. Muller;T. Feldpausch;B. Marimon
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文献类型：
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作者：
F. Alvarez;P. Morandi;B. H. Marimon‐Junior;Reginal Exavier;Igor Araújo;Lucas H. Mariano;A. Muller;T. Feldpausch;B. Marimon
在南亚马逊森林中，红草Brosimum rubbescens是一种新热带分布树种，可以实现局部优势。了解这个物种如何以及为什么在空间和时间上变化是很重要的，因为一些物种的垄断会改变生态系统的复杂性。本文对b的基本生态位进行了评价。将预测环境变量与发生点相结合，建立了风莲物种分布模型（SDM），确定了不同环境预测变量下风莲物种的时间持久性和空间分布格局。为了生成SDMs，我们将预测环境变量作为气候、水文和土壤变量的主要组成部分。所有算法在水文变量和气候、水文和土壤变量组合的空间预测中表现出更高的性能。我们确定了b。冬凌草似乎是由气候波动定义的，在评估的空间尺度上，土壤条件并没有限制该物种的存在。从末次盛冰期到现在，该物种的空间振幅似乎有所增加；然而，从现在到未来，预测表明b。冬凌草将经历相当大的范围损失。我们的研究结果显示了不同环境变量的独立和综合影响，使我们能够确定哪些限制或促进了b的空间分布。得。我们证实了物种分布模式随时间的空间持久性和地理保真度。图形抽象
Brosimum rubescens,a tree species with Neotropical distribution, can achieve local monodominance in Southern Amazonian forests. Understanding how and why this species varies across space and time is important because the monodominance of some species alters ecosystem complexity. Here we evaluated the fundamental ecological niche ofB. rubescensby species distribution models (SDM), combining predictive environmental variables with occurrence points, and determined the temporal persistence and how the spatial distribution patterns ofthis speciesvary with different environmental predictive variables. To generate the SDMs, we incorporated predictive environmental variables as main components of climatic, hydric and edaphic variables. All algorithms showed higher performance in spatial predictions for hydric variables and for the combination of climatic, hydric and edaphic variables. We identified that the potential niches ofB. rubescensseem to be defined by climatic fluctuations, with the edaphic conditions not limiting the presence of this species in the evaluated spatial scale. From the last glacial maximum to the present, this species seems to have increased its spatial amplitude; however, from the present to the future, predictions suggest thatB. rubescenswill experience a considerable loss of its range. Our findings showed independent and combined effects of different environmental variables, allowing us to identify which are limiting or facilitating the spatial distribution ofB. rubescens. We corroborate the spatial persistence and geographical fidelity of the species’ distribution patterns over time.Graphical abstract