Distribution patterns of Terebellidae (Annelida: Polychaeta): an application of Parsimony Analysis of Endemicity (PAE)

The biogeography of Terebellidae (Polychaeta) using Parsimony Analysis of Endemism (PAE) is investigated and species and genera distribution in relation to coastal and continental shelf areas of endemism around the world is considered. Hierarchical patterns in PAE cladograms are identified by testin...

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Bibliographic Details
Published in:Scientia Marina
Main Authors: André Rinaldo Senna Garraffoni, Silvio Shigueo Nihei, Paulo da Cunha Lana
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2006
Subjects:
marine biogeography
historical biogeography
areas of endemicity
terebellinae
polycirrinae
thelepodinae
trichobranchinae
Aquaculture. Fisheries. Angling
SH1-691
Antarctic
Antarc*
Online Access:https://doi.org/10.3989/scimar.2006.70s3269
https://doaj.org/article/1d79538176a048e3bfe53ce03119c0a9
Description
Summary:The biogeography of Terebellidae (Polychaeta) using Parsimony Analysis of Endemism (PAE) is investigated and species and genera distribution in relation to coastal and continental shelf areas of endemism around the world is considered. Hierarchical patterns in PAE cladograms are identified by testing for congruence with patterns derived from cladistic biogeography and geological evidence. The PAE cladogram indicates that many of the extant terebellid worms from the current Southern Hemisphere (“Gondwanan clades”) have originated from Laurasian ancestors or, in the case of the clade formed by Brazilian, South Atlantic and Antarctic taxa, have descended directly from an ancestral lineage common to some Northern areas. The present analysis also shows a high level of endemism at the species level. Relationships of the areas differ slightly from previous biogeographical analyses applied to other polychaete families.

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