The tropics of the New World are a biodiversity hotspot, the genus Anthurium being an example of a megadiverse taxon with currently > 1000 described species. In this study, we provide detailed information on species distributions and analyse patterns of diversity and endemism, with a particular focus on the comparison of epiphytic and terrestrial congenerics. Using a dataset of occurrence records for 1041 Anthurium spp. (c. 98% of the genus), we modelled geographical species distributions using climate-based species distribution models or buffered convex hulls depending on the number of occurrences available. We identified nine bioregions using cluster analysis. The Andean slopes, Central America, the Chocó and the Atlantic Forest in eastern Brazil are the most important centres of diversity for Anthurium, whereas endemism is highest in the central Andes. These macroecological patterns agree largely with diversity centres for other Neotropical plant groups. Epiphytes, accounting for about two-thirds of all species, have much larger range sizes than terrestrials, but do not differ in elevational ranges. Almost 40% of all Anthurium spp. are restricted to the lowlands, but a few species grow at elevations of almost 4000 m. Although individual species have an average elevation range of just c. 1000 m, there are taxa that cover > 3500 m of elevation.

中文翻译：

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大型生物红掌（天南星科）的生物地理学

新世界的热带地区是生物多样性的热点地区，红掌属是目前已描述的1000多个物种的大型生物分类群的一个例子。在这项研究中，我们提供了有关物种分布的详细信息，并分析了多样性和地方特有的模式，特别着重于附生和陆生同类的比较。使用1041 Anthurium spp的发生记录数据集。（c。98％的属），我们根据可利用的发生次数，使用基于气候的物种分布模型或缓冲的凸包来对地理物种分布进行建模。我们使用聚类分析确定了9个生物区域。巴西东部的安第斯山脉，中美洲，乔科和大西洋森林是红掌最重要的多样性中心，而安第斯山脉中部的地方性最高。这些宏观生态模式在很大程度上与其他新热带植物群的多样性中心一致。附生植物约占所有物种的三分之二，其范围大小比陆生物种大得多，但海拔范围没有差异。红掌中近40％spp。仅限于低地，但少数物种在海拔近4000 m处生长。尽管单个物种的平均海拔范围仅为c。1000 m，有一个覆盖超过3500 m的分类单元。