| Title: | Testing species boundaries of an unknown Dolomedes (Araneae, Dolomedidae) morphospecies from isolated islands |
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| Authors: | ID Cazanove, Grégory (Author)
ID Yu, Kuang-Ping (Author)
ID Derepas, Brice (Author)
ID Henrard, Arnaud (Author) |
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| Files: |  URL - Source URL, visit https://www.gbif.org/dataset/04314ad8-1768-48e3-a37c-954d6574da81
 JSON - Metadata, download (5,42 KB)
MD5: 849669657F637773FB79329268FE437F
URL - Similar work, visit https://doi.org/10.5852/ejt.2025.997.2927
Description: Research article
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| Language: | English |
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| Typology: | 2.20 - Complete scientific database of research data |
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| Organization: |  NIB - National Institute of Biology
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| Abstract: | Raft spiders, family Dolomedidae, represent a group of spiders with 7 genera distributed near globally well known for a semi-aquatic lifestyle. One of the iconic genera representing such a unique lifestyle is the largest and diverse dolomedid genus Dolomedes. Although Dolomedes is well surveyed in parts of its distribution, its diversity in the tropics remains largely unknown, such as the western Indian Ocean region with most of the islands unsurveyed. Recent expeditions to Madagascar and La Réunion Island discovered a series of specimens that appear to belong to an unknown morphospecies of Dolomedes, exhibiting varying degrees of differences in the diagnostic characteristics. To further test and define their species boundaries, we include molecular evidence followed by species delimitation analyses. Our findings indicate that specimens from both islands are conspecific. Consequently, we introduce a new species to science, Dolomedes reuniascar sp. nov., providing detailed illustrations, descriptions of its variations and ecological characteristics. Based on our observations and existing literature, we speculate that the presence of this species on the two isolated islands could be attributed to either highly efficient dispersal abilities, such as ballooning of spiderlings, or human-mediated introduction events. Contacts |
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| Keywords: | fishing spider, phylogeny, taxonomy, Madagascar, Réunion |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 12.06.2025 |
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| Place of publishing: | Copenhagen |
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| Publisher: | GBIF |
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| Year of publishing: | 2025 |
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| Number of pages: | 1 spletni vir |
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| PID: | 20.500.12556/DiRROS-29324  |
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| UDC: | 595.44 |
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| DOI: | 10.15468/m3rrpc |
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| COBISS.SI-ID: | 273450755 |
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| Note: | Nasl. z. nasl. zaslona;
Opis vira z dne 29. 3. 2026;
Soavtorji: Kuang-Ping Yu, Brice Derepas & Arnaud Henrard;
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| Publication date in DiRROS: | 08.05.2026 |
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| Views: | 131 |
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| Downloads: | 150 |
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| Metadata: |    |
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