Freshwater diversity at a biogeographic edge zone: the high-mountain pea-clams of Ethiopia

IF 1.8 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Systematics and Biodiversity Pub Date : 2022-01-11 DOI:10.1080/14772000.2021.2005706

C. Clewing, Thies Geertz, Hanane Rassam, Tamirat Hailegebriel Woldekiros, C. Albrecht

{"title":"Freshwater diversity at a biogeographic edge zone: the high-mountain pea-clams of Ethiopia","authors":"C. Clewing, Thies Geertz, Hanane Rassam, Tamirat Hailegebriel Woldekiros, C. Albrecht","doi":"10.1080/14772000.2021.2005706","DOIUrl":null,"url":null,"abstract":"Mountain ranges are known for their particular level of biodiversity typically including a striking amount of endemism. This has been comparatively well studied for certain mountain ranges worldwide such as the Alps in Europe, the Himalayas in Asia, the Rocky Mountains in North America and the Andes in South America. Apparently, this is not the case for the mountains on the African continent and especially their freshwater fauna. One of Africa’s largest high-elevated regions is the Ethiopian Highlands. The study of freshwater molluscs might potentially allow to provide valuable insights into the interplay of environmental variation and evolutionary change. Here, we present the first genetically based study of Afromontane sphaeriid bivalves in a worldwide phylogenetic framework which allowed us to assess and describe the recent diversity and endemism as well as the fauna’s biogeographic background. Additionally, a new Ethiopian species of Sphaeriidae, Pisidium boessnecki Albrecht & Clewing sp. nov., could be discovered and is formally described here. Our study revealed a total of six sphaeriid species for the restricted study region in the Ethiopian Highlands of which the first two are most likely endemic: Pisidium boessnecki sp. nov., P. ethiopicum, P. cf. kenianum, P. cf. pirothi, P. cf. viridarium, and Pisidium sp. V. Based on the multigene phylogeny generated, we conclude that the observed diversity might have been caused by multiple independent colonization events from Africa. The zoogeographic affinities of all Ethiopian sphaeriids are related to the Afrotropics. The importance of these findings is discussed. http://zoobank.org/urn:lsid:zoobank.org:act:99C2C3A3-533B-4180-BBDD-E4E5A4D28F09","PeriodicalId":54437,"journal":{"name":"Systematics and Biodiversity","volume":" ","pages":"1 - 15"},"PeriodicalIF":1.8000,"publicationDate":"2022-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Systematics and Biodiversity","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/14772000.2021.2005706","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIODIVERSITY CONSERVATION","Score":null,"Total":0}

引用次数: 2

Abstract

Mountain ranges are known for their particular level of biodiversity typically including a striking amount of endemism. This has been comparatively well studied for certain mountain ranges worldwide such as the Alps in Europe, the Himalayas in Asia, the Rocky Mountains in North America and the Andes in South America. Apparently, this is not the case for the mountains on the African continent and especially their freshwater fauna. One of Africa’s largest high-elevated regions is the Ethiopian Highlands. The study of freshwater molluscs might potentially allow to provide valuable insights into the interplay of environmental variation and evolutionary change. Here, we present the first genetically based study of Afromontane sphaeriid bivalves in a worldwide phylogenetic framework which allowed us to assess and describe the recent diversity and endemism as well as the fauna’s biogeographic background. Additionally, a new Ethiopian species of Sphaeriidae, Pisidium boessnecki Albrecht & Clewing sp. nov., could be discovered and is formally described here. Our study revealed a total of six sphaeriid species for the restricted study region in the Ethiopian Highlands of which the first two are most likely endemic: Pisidium boessnecki sp. nov., P. ethiopicum, P. cf. kenianum, P. cf. pirothi, P. cf. viridarium, and Pisidium sp. V. Based on the multigene phylogeny generated, we conclude that the observed diversity might have been caused by multiple independent colonization events from Africa. The zoogeographic affinities of all Ethiopian sphaeriids are related to the Afrotropics. The importance of these findings is discussed. http://zoobank.org/urn:lsid:zoobank.org:act:99C2C3A3-533B-4180-BBDD-E4E5A4D28F09

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

生物地理边缘地带的淡水多样性:埃塞俄比亚的高山豌豆蛤

山脉以其特殊的生物多样性水平而闻名，通常包括数量惊人的地方性。在世界范围内的某些山脉，如欧洲的阿尔卑斯山、亚洲的喜马拉雅山、北美洲的落基山脉和南美洲的安第斯山脉，都对这一点进行了比较深入的研究。显然，非洲大陆的山脉，尤其是它们的淡水动物群，情况并非如此。埃塞俄比亚高地是非洲最大的高地之一。对淡水软体动物的研究可能会为环境变化和进化变化的相互作用提供有价值的见解。在这里，我们在全球系统发育框架中首次对非洲球藻双壳类进行了基于基因的研究，这使我们能够评估和描述最近的多样性和特有性以及动物群的生物地理背景。此外，还可能发现一种新的埃塞俄比亚鞘翅目物种，Pisidium boessnecki Albrecht&Clewing sp.nov.，并在这里进行了正式描述。我们的研究揭示了埃塞俄比亚高地限制性研究区共有六种球藻属物种，其中前两种最有可能是地方性的：Pisidium boessnecki sp.nov.、P.ethiopicum、P.cf.kenianum、P.cf.pirothi、P.cf.viridarium和Pisididium sp.V。基于产生的多基因系统发育，我们得出结论，观察到的多样性可能是由来自非洲的多次独立殖民事件引起的。所有埃塞俄比亚球藻的动物地理亲缘关系都与非洲类有关。讨论了这些发现的重要性。http://zoobank.org/urn:lsid:zoobank.org:act:99C2C3A3-533B-4180-BBDD-e4ee5a4d28f09

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Systematics and Biodiversity 环境科学-生物多样性保护

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

>24 weeks

期刊介绍： Systematics and Biodiversity is devoted to whole-organism biology. It is a quarterly, international, peer-reviewed, life science journal, without page charges, which is published by Taylor & Francis for The Natural History Museum, London. The criterion for publication is scientific merit. Systematics and Biodiversity documents the diversity of organisms in all natural phyla, through taxonomic papers that have a broad context (not single species descriptions), while also addressing topical issues relating to biological collections, and the principles of systematics. It particularly emphasises the importance and multi-disciplinary significance of systematics, with contributions which address the implications of other fields for systematics, or which advance our understanding of other fields through taxonomic knowledge, especially in relation to the nature, origins, and conservation of biodiversity, at all taxonomic levels. The journal does not publish single species descriptions, monographs or applied research nor alpha species descriptions. Taxonomic manuscripts must include modern methods such as cladistics or phylogenetic analysis.