Description
Deep-sea hydrothermal vent communities contain a high proportion of endemic species, particularly at higher taxonomic levels. This endemism reflects the high degree of specialization required to succeed in one of Earth's most extreme environments. The brachyuran crab family Bythograeidae Williams, 1980 (superfamily Bythograeoidea) is among the most ubiquitous and abundant group of macroinvertebrates to have colonized the deep-sea hydrothermal vents worldwide. It is also the only group within the diverse infraorder Brachyura (which contains 7000 valid species and subspecies in 93 families) that is endemic to this extreme environment. This is remarkable, as only one other brachyuran species from a very distant family is endemic to hydrothermal vents, but from shallow waters (i.e., Xenograpsus testudinatus in Xenograpsidae); and just a handful of opportunistic brachyuran species have been observed at deep-sea hydrothermal vents. Understanding the evolution of this important deep-sea hydrothermal vent taxon requires knowledge on the phylogenetic relationships among its members. As presently diagnosed, the family Bythograeidae consists of six genera and fourteen described species. The family is most diverse at the eastern Pacific vent systems (the East Pacific Rise, Galapagos Rift, and the Pacific-Antarctic Ridge), where it is represented by eight species belonging to three endemic genera: Cyanagraea praedator; Allograea tomentosa; Bythograea thermydron; Bythograea microps; Bythograea laubieri; Bythograea vrijenhoeki; Bythograea intermedia; and Bythograea galapagensis (although the last two are very likely a synonymy). The Mid-Atlantic Ridge is inhabited by Segonzacia mesatlantica. The Western Pacific back-arc basins are inhabited by Austinograea williamsi, Austinograea alayseae, Gandalfus puia, and Gandalfus yunohana. In addition, an undescribed Austinograea species (A. affinity williamsi) is suspected in the Western Pacific Lau back-arc basin. Finally, Austinograea rodriguezensis inhabits the Central Indian Ridge. The northeastern Pacific ridges (Explorer, Juan de Fuca, and Gorda) are the only major spreading centers that lack bythograeids. Some bythograeid species occur in large numbers at specific vent sites (e.g., B. thermydron and A. williamsi), whereas others appear to be rare (e.g., A. tomentosa and B. galapagensis).
Enregistrements de données
Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 13 enregistrements.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
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Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Mateos M, Hurtado LA, Santamaria CA, Leignel V, Guinot D (2012) Molecular Systematics of the Deep-Sea Hydrothermal Vent Endemic Brachyuran Family Bythograeidae: A Comparison of Three Bayesian Species Tree Methods. Southwestern Pacific OBIS, National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, 13 records, Online http://nzobisipt.niwa.co.nz/resource.do?r=bythograeidae released on June 20, 2015.
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.
Enregistrement GBIF
Cette ressource n'a pas été enregistrée sur le portail GBIF
Mots-clé
Occurrence; Observation
Contacts
- Créateur ●
- Personne De Contact
- Fournisseur Des Métadonnées
Couverture géographique
Deep sea hydrothermal vents across the worlds oceans
Enveloppe géographique | Sud Ouest [-90, -180], Nord Est [90, 180] |
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Couverture taxonomique
Brachyuran crabs of the family Bythograeidae
Family | Bythograeidae |
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Citations bibliographiques
- Mateos M, Hurtado LA, Santamaria CA, Leignel V, Guinot D (2012) Molecular Systematics of the Deep-Sea Hydrothermal Vent Endemic Brachyuran Family Bythograeidae: A Comparison of Three Bayesian Species Tree Methods. PLoS ONE 7(3): e32066. doi:10.1371/journal.pone.0032066
Métadonnées additionnelles
marine, harvested by iOBIS
Identifiants alternatifs | https://nzobisipt.niwa.co.nz/resource?r=bythograeidae |
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