Heterotrophic soil protists encompass lineages that are both evolutionarily ancient and highly diverse, providing an untapped wealth of scientific insight. Yet the diversity of free-living heterotrophic terrestrial protists is still largely unknown. To contribute to our understanding of this diversity, we present a checklist of heterotrophic protists currently reported from terrestrial Antarctica, for which no comprehensive evaluation currently exists. As a polar continent, Antarctica is especially susceptible to rising temperatures caused by anthropogenic climate change. Establishing a baseline for future conservation efforts of Antarctic protists is therefore important. We performed a literature search and found 236 taxa identified to species and an additional 303 taxa identified to higher taxonomic levels in 54 studies spanning over 100 years of research. Isolated by distance, climate and the circumpolar vortex, Antarctica is the most extreme continent on Earth: it is not unreasonable to think that it may host physiologically and evolutionarily unique species of protists, yet currently most species discovered in Antarctica are considered cosmopolitan. Additional sampling of the more extreme intra-continental zones will probably result in the discovery of more novel and unique taxa.

中文翻译：

---

来自南极洲的陆地异养原生生物临时清单

异养土壤原生生物包括进化上古老且高度多样化的谱系，提供了尚未开发的科学见解财富。然而，自由生活的异养陆地原生生物的多样性在很大程度上仍然未知。为了促进我们对这种多样性的理解，我们提出了一份目前从陆地南极洲报道的异养原生生物清单，目前尚无全面评估。作为极地大陆，南极洲特别容易受到人为气候变化引起的气温升高的影响。因此，为南极原生生物的未来保护工作建立基线非常重要。我们进行了文献检索，在跨越 100 多年的研究的 54 项研究中发现了 236 个被鉴定为物种的分类群和另外 303 个被鉴定为更高分类水平的分类群。由于距离、气候和环极涡旋而孤立，南极洲是地球上最极端的大陆：认为它可能拥有生理和进化上独特的原生生物物种并非没有道理，但目前在南极洲发现的大多数物种都被认为是世界性的。对更极端的大陆内区域进行额外采样可能会发现更多新颖和独特的分类群。然而，目前在南极洲发现的大多数物种都被认为是世界性的。对更极端的大陆内区域进行额外采样可能会发现更多新颖和独特的分类群。然而，目前在南极洲发现的大多数物种都被认为是世界性的。对更极端的大陆内区域进行额外采样可能会发现更多新颖和独特的分类群。