| Introduction | | Search taxa | | Taxon tree | | Taxon match | | Checklist | | Literature | | Stats | | Photogallery | | OBIS Vocab | | Log in |
CaRMS source details
Cerca, José; Meyer, Christian; Purschke, Günter; Struck, Torsten H. (2020). Delimitation of cryptic species drastically reduces the geographical ranges of marine interstitial ghost-worms (Stygocapitella; Annelida, Sedentaria). Molecular Phylogenetics and Evolution. 143: 106663: 1-16.
381872
10.1016/j.ympev.2019.106663 [view]
Cerca, José; Meyer, Christian; Purschke, Günter; Struck, Torsten H.
2020
Delimitation of cryptic species drastically reduces the geographical ranges of marine interstitial ghost-worms (Stygocapitella; Annelida, Sedentaria)
Molecular Phylogenetics and Evolution
143: 106663: 1-16
Publication
World Polychaeta Database (WPolyDb). The article mentions a ZooBank registration (no LSID stated), but it is not yet visible (23-Jun-2020)
Available for editors
The recognition of cryptic species concealed in traditionally established species can reveal new biogeographical patterns and alter the understanding of how biodiversity is geographically distributed. This is particularly relevant for marine ecosystems where the incidence of cryptic species is high and where species distribution data are often challenging to collect and interpret. Here, we studied specimens of the ‘cosmopolitan’ interstitial meiofaunal annelid Stygocapitella subterranea Knöllner, 1934 (Parergodrilidae, Orbiniida), obtaining data from four coastlines in the Northern hemisphere. Using phylogenetic tools and several species-delimitation methods (haplotype networks, GMYC, bPTP, maximum likelihood, posterior probability and morphology) we describe eight new Stygocapitella species. With one exception, all species are present along a single coastline, ultimately challenging the idea that Stygocapitella subterranea has a cosmopolitan distribution. We found evidence for several oceanic transitions having occurred in the past as well as a recent translocation, potentially due to human activity. No diagnostic characters were found, and qualitative and quantitative morphological data do not allow an unequivocal differentiation of the identified cryptic species. This suggests that (i) neither traditional diagnostic features nor quantitative morphology suffice to recognise species boundaries in cryptic species complexes, such as the Stygocapitella species complex; and that (ii) the recognition and description of cryptic species is of seminal importance for biodiversity assessments, biogeography and evolutionary biology.
Meiobenthos
Systematics, Taxonomy
Stygocapitella Knöllner, 1934 (taxonomy source)
Stygocapitella subterranea Knöllner, 1934 (taxonomy source) Distribution North Sea (British & German coast) and the Channel (British & French coast), also Lubec (ME, USA). [details] Distribution Cerca et al (2020: 12) state: "records from the Mediterranean Sea (French & Tunisian coast), the Black Sea ... [details] Distribution North-western Atlantic coasts of USA and Canada [details] Distribution Northern Atlantic comprising the Northern and North Seas (Scandinavian, British & German coast) [details] Etymology authors: Stygocapitella americae "follows [indicates?] the American continent, where it was collected." [details] Etymology Stygocapitella berniei is named after the USA politician Bernie Sanders. Authors: "The field collection site is in ... [details] Etymology Stygocapitella budaevae is named after the Russian polychaete biologist Nataliya Budaeva [details] Etymology authors: Stygocapitella furcata "name reflects its having forked chaetae" [details] Etymology Stygocapitella josemariobrancoi is named after politically active Portuguese singer José Mário Branco (1942 - 2019) [details] Etymology authors: "The species name derives from presence in the Pacific Ocean." (Stygocapitella pacifica is from the Sea of ... [details] Etymology Stygocapitella westheidei is named after Wilfried Westheide, German polychaete biologist [details] Etymology Stygocapitella zecai is named after the politically active Portuguese singer-songwriter José Manuel Cerqueira ... [details] Type locality Reuben Tarte Park, San Juan Island, Washington. 48.6127, -123.0986 (Substituted true geolocation, as the authors ... [details] Type locality Roche Harbor, San Juan Island, USA, Haro Strait, near Vancouver Island, 48.5961, -123.17°, 3 m alttitude [details] Type locality Volchanets, Russia, Sea of Japan, 42.9105, 132.7403, (42° 54' 37.7? N, 132° 44' 25.0? E), 5 m altitude (same ... [details] Type locality 4th July Beach, San Juan Island, Salish Sea, near Vancouver Island, 48.4682, -123.0030, 5 m altitude (within the ... [details] Type locality Plymouth Bay, Devon, British Isles, 50.3486, -4.2007, between high-water line and one meter above, at a sediment ... [details] Type locality Volchanets, Russia, Sea of Japan, 42.9105, 132.7403, (42° 54' 37.7? N, 132° 44' 25.0? E), 5 m altitude [details] Type locality Canoe Beach, Boston, Massachusetts, USA, 42.4196, -70.9068 (42° 25′ 10.6″ N, 70° 54′ 24.6″ W), between ... [details] Type locality Henningsvær, Norway, 68.2608, 14.2684 (68°15′38.8″N 14°16′06.1″E), upper beach between high-water line ... [details] |