A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific
The recent discovery of two new species of kiwaid squat lobsters on hydrothermal vents in the Pacific Ocean and in the Pacific sector of the Southern Ocean has prompted a re-analysis of Kiwaid biogeographical history. Using a larger alignment with more fossil calibrated nodes than previously, we con...
| Main Authors: | , , , , , |
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| Format: | Journal article |
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Public Library of Science
2018
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| _version_ | 1797087214324154368 |
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| author | Roterman, C Lee, W Liu, X Lin, R Li, X Won, Y |
| author_facet | Roterman, C Lee, W Liu, X Lin, R Li, X Won, Y |
| author_sort | Roterman, C |
| collection | OXFORD |
| description | The recent discovery of two new species of kiwaid squat lobsters on hydrothermal vents in the Pacific Ocean and in the Pacific sector of the Southern Ocean has prompted a re-analysis of Kiwaid biogeographical history. Using a larger alignment with more fossil calibrated nodes than previously, we consider the precise relationship between Kiwaidae, Chirostylidae and Eumunididae within Chirostyloidea (Decapoda: Anomura) to be still unresolved at present. Additionally, the placement of both new species within a new “Bristly” clade along with the seep-associated Kiwa puravida is most parsimoniously interpreted as supporting a vent origin for the family, rather than a seep-to-vent progression. Fossil-calibrated divergence analysis indicates an origin for the clade around the Eocene-Oligocene boundary in the eastern Pacific ~33–38 Ma, coincident with a lowering of bottom temperatures and increased ventilation in the Pacific deep sea. Likewise, the mid-Miocene (~10–16 Ma) rapid radiation of the new Bristly clade also coincides with a similar cooling event in the tropical East Pacific. The distribution, diversity, tree topology and divergence timing of Kiwaidae in the East Pacific is most consistent with a pattern of extinctions, recolonisations and radiations along fast-spreading ridges in this region and may have been punctuated by large-scale fluctuations in deep-water ventilation and temperature during the Cenozoic; further affecting the viability of Kiwaidae populations along portions of mid-ocean ridge. |
| first_indexed | 2024-03-07T02:32:37Z |
| format | Journal article |
| id | oxford-uuid:a7c05a61-e64b-4fa5-99af-aad2a3782ec3 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:32:37Z |
| publishDate | 2018 |
| publisher | Public Library of Science |
| record_format | dspace |
| spelling | oxford-uuid:a7c05a61-e64b-4fa5-99af-aad2a3782ec32022-03-27T02:56:40ZA new yeti crab phylogeny: Vent origins with indications of regional extinction in the East PacificJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a7c05a61-e64b-4fa5-99af-aad2a3782ec3Symplectic Elements at OxfordPublic Library of Science2018Roterman, CLee, WLiu, XLin, RLi, XWon, YThe recent discovery of two new species of kiwaid squat lobsters on hydrothermal vents in the Pacific Ocean and in the Pacific sector of the Southern Ocean has prompted a re-analysis of Kiwaid biogeographical history. Using a larger alignment with more fossil calibrated nodes than previously, we consider the precise relationship between Kiwaidae, Chirostylidae and Eumunididae within Chirostyloidea (Decapoda: Anomura) to be still unresolved at present. Additionally, the placement of both new species within a new “Bristly” clade along with the seep-associated Kiwa puravida is most parsimoniously interpreted as supporting a vent origin for the family, rather than a seep-to-vent progression. Fossil-calibrated divergence analysis indicates an origin for the clade around the Eocene-Oligocene boundary in the eastern Pacific ~33–38 Ma, coincident with a lowering of bottom temperatures and increased ventilation in the Pacific deep sea. Likewise, the mid-Miocene (~10–16 Ma) rapid radiation of the new Bristly clade also coincides with a similar cooling event in the tropical East Pacific. The distribution, diversity, tree topology and divergence timing of Kiwaidae in the East Pacific is most consistent with a pattern of extinctions, recolonisations and radiations along fast-spreading ridges in this region and may have been punctuated by large-scale fluctuations in deep-water ventilation and temperature during the Cenozoic; further affecting the viability of Kiwaidae populations along portions of mid-ocean ridge. |
| spellingShingle | Roterman, C Lee, W Liu, X Lin, R Li, X Won, Y A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific |
| title | A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific |
| title_full | A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific |
| title_fullStr | A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific |
| title_full_unstemmed | A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific |
| title_short | A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific |
| title_sort | new yeti crab phylogeny vent origins with indications of regional extinction in the east pacific |
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