Abstract

An algific talus slope is composed of broken rocks with vents connected to an ice cave, releasing cool air in summer and relatively warmer air in winter to maintain a more stable microclimate all year round. Such geological features create a very unusual and delicate ecosystem. Although there are around 25 major algific talus slopes in Korea, lichen ecology of these areas had not been investigated to date. In this study, we report the first exploration of lichen diversity and ecology at an algific talus slope, Jangyeol-ri, in Korea. A total of 37 specimens were collected over 2017–2018. Morphological and sequencing analysis revealed 27 species belonging to 18 genera present in the area. Of particular interest among these species was Solorina saccata, as it has previously not been reported in Korea and most members of genus Solorina are known to inhabit alpine regions of the Northern Hemisphere. We provide here a taxonomic key for S. saccata alongside molecular phylogenetic analyses and prediction of potential habitats in South Korea. Furthermore, regions in South Korea potentially suitable for Solorina spp. were predicted based on climatic features of known habitats around the globe. Our results showed that the suitable areas are mostly at high altitudes in mountainous areas where the annual temperature range does not exceed 26.6 °C. Further survey of other environmental conditions determining the suitability of Solorina spp. should lead to a more precise prediction of suitable habitats and trace the origin of Solorina spp. in Korea.

 抽象的

海藻斜坡由破碎的岩石组成，其通风口与冰洞相连，在夏季释放冷空气，在冬季释放相对温暖的空气，以维持全年更稳定的小气候。这样的地质特征创造了一个非常不寻常和脆弱的生态系统。尽管韩国约有25处主要的藻类斜坡，但迄今为止尚未对这些地区的地衣生态进行调查。在这项研究中，我们报告了对韩国长烈里藻类斜坡地衣多样性和生态学的首次探索。 2017-2018 年共采集了 37 个标本。形态学和测序分析显示该地区存在 18 属 27 种。这些物种中特别令人感兴趣的是Solorina saccata ，因为韩国以前没有报道过这种物种，而且已知Solorina属的大多数成员栖息在北半球的高山地区。我们在这里提供了S. saccata的分类学索引，以及韩国潜在栖息地的分子系统发育分析和预测。此外，韩国的地区可能适合Solorina spp。是根据全球已知栖息地的气候特征进行预测的。结果表明，适宜地区多为高海拔山区，年温差不超过26.6℃。进一步调查其他环境条件，确定Solorina spp 的适宜性。应该可以更准确地预测合适的栖息地并追踪Solorina spp 的起源。在韩国。