College of Life Science, Shenyang Normal University, Shenyang, Liaoning 110034, China.
Liaoning Key Laboratory of Evolution and Biodiversity, Shenyang, Liaoning 110034, China.
Zool Res. 2021 May 18;42(3):267-271. doi: 10.24272/j.issn.2095-8137.2021.037.
Despite 250 years of taxonomic classification and over 1.2 million species already catalogued, known species diversity is only a small part of true species diversity on Earth, and thus, the known species are only the tip of iceberg. Here, we investigated the genus Walckenaer, 1805 of the family Pholcidae C. L. Koch, 1850 in the Changbai Mountains, Northeast China, which provides an excellent case of high species diversity. Previously, only 14 endemic spiders, all belonging to the species group, and two introduced species Gertsch, 1937 and Kulczyński, 1901 from the species group, have been recorded from this area. Our study confirmed 11 new species of the species group based on morphology and three methods of molecular species delimitation: Yao & Li, , Yao & Li, , Yao & Li, , Yao & Li, , Yao & Li, , Yao & Li, , Yao & Li, , Yao & Li, , Yao & Li, , Yao & Li, , and Yao & Li, This study brings the fauna of the species group from the Changbai Mountains to 25 species, approximately two times more than previously known, which could indicate that species diversity in the area is underestimated for all arthropod fauna.
尽管经过 250 年的分类学分类和超过 120 万种已被编目，但已知的物种多样性只是地球上真正物种多样性的一小部分，因此，已知的物种只是冰山一角。在这里，我们研究了中国东北长白山的 Pholcidae C. L. Koch, 1850 科 Walckenaer 属，该属提供了一个物种多样性极高的极好案例。此前，该地区仅记录了 14 种特有蜘蛛，均属于 物种组，以及两种来自 物种组的引入种 Gertsch, 1937 和 Kulczyński, 1901。我们的研究基于形态学和三种分子物种界定方法，确认了 11 种新的 物种组： Yao & Li,, Yao & Li,, Yao & Li,, Yao & Li,, Yao & Li,, Yao & Li,, Yao & Li,, Yao & Li,, Yao & Li,, 和 Yao & Li, 。这项研究使长白山的 物种组动物群达到 25 种，大约是以前已知的两倍，这可能表明该地区所有节肢动物群的物种多样性都被低估了。
