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Don't lose sight of the forest for the trees! Discerning Iberian pine communities by means of pollen–vegetation relationships
Review of Palaeobotany and Palynology ( IF 1.9 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.revpalbo.2020.104285
José Antonio López-Sáez , J. Julio Camarero , Daniel Abel-Schaad , Reyes Luelmo-Lautenschlaeger , Sebastián Pérez-Díaz , Francisca Alba-Sánchez , José S. Carrión

Abstract A set of 30 modern pollen samples collected in pine communities of the Gudar Range (southeastern Iberian System) has been investigated to determine the relationships between pollen percentages and vegetation composition along a ~ 1000 m elevation transect. Pollen representation was estimated by comparing the presence of plant taxa from a recent vegetation survey with pollen spectra. Classification and ordination of modern pollen samples indicated the existence of eight vegetation units, which can be assigned to the six studied pine forest communities. Lowland forests are clearly discriminated from high-altitude ones. These analyses also allow separating Pinus nigra and P. pinaster communities according to their tree cover, and even those of P. sylvestris according to the bioclimatic belt they inhabit. We show that it is possible to obtain distinct pollen markers for Mediterranean pine forest communities. These results will also improve the reconstruction of pine forests from fossil pollen diagrams, as far as modern pollen rain studies are carried out in specific regions, an approach which can be extrapolated to other plant formations regardless the involved territory.

中文翻译:

不要只见树木不见森林!通过花粉-植被关系识别伊比利亚松树群落

摘要 研究了在古达尔山脉(伊比利亚系统东南部)的松树群落中收集的一组 30 个现代花粉样本,以确定沿约 1000 米高程横断面的花粉百分比与植被组成之间的关系。通过比较最近植被调查中植物分类群的存在与花粉光谱来估计花粉代表性。现代花粉样本的分类和排序表明存在八个植被单元,可以将它们分配给六个研究的松林群落。低地森林与高海拔森林有明显的区别。这些分析还允许根据树木覆盖率区分黑松和松树群落,甚至根据它们居住的生物气候带区分西洋松群落。我们表明可以为地中海松林群落获得不同的花粉标记。这些结果也将改进从化石花粉图重建松树林,就现代花粉雨研究在特定区域进行而言,这种方法可以外推到其他植物结构,而不管涉及的领土。
更新日期:2020-10-01
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