Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions
Species of the genus Bertolanius (Eohypsibiidae, Eohypsibioidea) are morphologically very similar and can be distinguished by only minute differences. During faunal surveys in Arctic areas (Disko I., Greenland; Uummannaq, Greenland; Abisko, Sweden), the four species Bertolanius nebulosus, Bertolaniu...
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Online Access: | http://hdl.handle.net/11380/1111054 https://doi.org/10.1007/s00300-016-1931-0 |
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ftunivmodena:oai:iris.unimore.it:11380/1111054 2024-04-21T07:43:22+00:00 Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions Hansen, Jesper Guldberg Kristensen, Reinhardt Møbjerg BERTOLANI, Roberto GUIDETTI, Roberto Hansen, Jesper Guldberg Kristensen, Reinhardt Møbjerg Bertolani, Roberto Guidetti, Roberto 2017 STAMPA http://hdl.handle.net/11380/1111054 https://doi.org/10.1007/s00300-016-1931-0 eng eng country:DEU info:eu-repo/semantics/altIdentifier/wos/WOS:000391401900010 volume:40 issue:1 firstpage:123 lastpage:140 numberofpages:18 journal:POLAR BIOLOGY http://hdl.handle.net/11380/1111054 doi:10.1007/s00300-016-1931-0 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84961783322 link.springer.de/link/service/journals/00300/index.htm info:eu-repo/semantics/closedAccess Arctic Biogeography Encystment Greenland Holarctic Sweden Taxonomic key Agricultural and Biological Sciences (all) info:eu-repo/semantics/article 2017 ftunivmodena https://doi.org/10.1007/s00300-016-1931-0 2024-03-28T01:31:31Z Species of the genus Bertolanius (Eohypsibiidae, Eohypsibioidea) are morphologically very similar and can be distinguished by only minute differences. During faunal surveys in Arctic areas (Disko I., Greenland; Uummannaq, Greenland; Abisko, Sweden), the four species Bertolanius nebulosus, Bertolanius smreczynskii, Bertolanius weglarskae and Bertolanius birnae sp. nov. were found. Bertolanius nebulosus and Bertolaniussmreczynskii have been compared with their paratypes, and type material of other species of Bertolanius has been considered for comparison within the genus. Bertolaniusbirnae sp. nov. possesses a unique combination of characters (i.e., an evident anterior band of teeth, the median ridge of the buccal armature consisting of two large teeth instead of one, absence of eyes, and eggs with conical processes without areolation around their bases) that is not seen in any other species in the genus, though these characters may be present in other combinations within the genus. Our revision and analytical comparison among these Bertolanius species adds new and important information on claw, buccal armature, egg surface morphologies as well as the encystment process of the species. We also provide a taxonomic key to aid the identification of Bertolanius species. The new discoveries of Bertolanius species from northern polar regions further support the hypothesis that the distribution of Eohypsibioidea is restricted to the Holarctic in the Arctic and Periarctic areas, or in alpine areas between 550 and 2400 m a.s.l. of more temperate regions. Article in Journal/Newspaper Abisko Greenland Uummannaq Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS) Polar Biology 40 1 123 140 |
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Open Polar |
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Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS) |
op_collection_id |
ftunivmodena |
language |
English |
topic |
Arctic Biogeography Encystment Greenland Holarctic Sweden Taxonomic key Agricultural and Biological Sciences (all) |
spellingShingle |
Arctic Biogeography Encystment Greenland Holarctic Sweden Taxonomic key Agricultural and Biological Sciences (all) Hansen, Jesper Guldberg Kristensen, Reinhardt Møbjerg BERTOLANI, Roberto GUIDETTI, Roberto Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions |
topic_facet |
Arctic Biogeography Encystment Greenland Holarctic Sweden Taxonomic key Agricultural and Biological Sciences (all) |
description |
Species of the genus Bertolanius (Eohypsibiidae, Eohypsibioidea) are morphologically very similar and can be distinguished by only minute differences. During faunal surveys in Arctic areas (Disko I., Greenland; Uummannaq, Greenland; Abisko, Sweden), the four species Bertolanius nebulosus, Bertolanius smreczynskii, Bertolanius weglarskae and Bertolanius birnae sp. nov. were found. Bertolanius nebulosus and Bertolaniussmreczynskii have been compared with their paratypes, and type material of other species of Bertolanius has been considered for comparison within the genus. Bertolaniusbirnae sp. nov. possesses a unique combination of characters (i.e., an evident anterior band of teeth, the median ridge of the buccal armature consisting of two large teeth instead of one, absence of eyes, and eggs with conical processes without areolation around their bases) that is not seen in any other species in the genus, though these characters may be present in other combinations within the genus. Our revision and analytical comparison among these Bertolanius species adds new and important information on claw, buccal armature, egg surface morphologies as well as the encystment process of the species. We also provide a taxonomic key to aid the identification of Bertolanius species. The new discoveries of Bertolanius species from northern polar regions further support the hypothesis that the distribution of Eohypsibioidea is restricted to the Holarctic in the Arctic and Periarctic areas, or in alpine areas between 550 and 2400 m a.s.l. of more temperate regions. |
author2 |
Hansen, Jesper Guldberg Kristensen, Reinhardt Møbjerg Bertolani, Roberto Guidetti, Roberto |
format |
Article in Journal/Newspaper |
author |
Hansen, Jesper Guldberg Kristensen, Reinhardt Møbjerg BERTOLANI, Roberto GUIDETTI, Roberto |
author_facet |
Hansen, Jesper Guldberg Kristensen, Reinhardt Møbjerg BERTOLANI, Roberto GUIDETTI, Roberto |
author_sort |
Hansen, Jesper Guldberg |
title |
Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions |
title_short |
Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions |
title_full |
Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions |
title_fullStr |
Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions |
title_full_unstemmed |
Comparative analyses of Bertolanius species (Eohypsibiidae; Eutardigrada) with the description of Bertolaniusbirnae sp. nov. from northern polar regions |
title_sort |
comparative analyses of bertolanius species (eohypsibiidae; eutardigrada) with the description of bertolaniusbirnae sp. nov. from northern polar regions |
publisher |
country:DEU |
publishDate |
2017 |
url |
http://hdl.handle.net/11380/1111054 https://doi.org/10.1007/s00300-016-1931-0 |
genre |
Abisko Greenland Uummannaq |
genre_facet |
Abisko Greenland Uummannaq |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000391401900010 volume:40 issue:1 firstpage:123 lastpage:140 numberofpages:18 journal:POLAR BIOLOGY http://hdl.handle.net/11380/1111054 doi:10.1007/s00300-016-1931-0 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84961783322 link.springer.de/link/service/journals/00300/index.htm |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s00300-016-1931-0 |
container_title |
Polar Biology |
container_volume |
40 |
container_issue |
1 |
container_start_page |
123 |
op_container_end_page |
140 |
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