DNA Taxonomy Confirms the Identity of the Widely-Disjunct Mediterranean and Atlantic Populations of the Tufted Ghost Crab Ocypode cursor (Crustacea: Decapoda: Ocypodidae)

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Abstract

The distribution area of the tufted ghost crab Ocypode cursor includes two widely separatesub-areas, i.e. the tropical and subtropical Atlantic coasts of Africa and Macaronesia, and thecentral-eastern Mediterranean basin. The current disjunct distribution of the species is possiblythe remnant of a previous wider and continuous distribution area that was fragmented during thePleistocene, with the disappearance of the species from the temperate Atlantic Ocean and thewestern Mediterranean basin, and its survival in the warmer areas of the eastern Atlantic and theMediterranean Sea. Such disjunction is thus compatible with an ancient isolation between theMediterranean and Atlantic populations of the species, which could in fact constitute two wellcharacterizedindependent evolutionary lineages, or even two cryptic species. Unexpectedly, thesequencing of a fragment of the mtDNA COI gene from Mediterranean and Atlantic Ocypode cursorallopatric populations showed the cohesion of the species throughout its distribution range, andthe nesting of Mediterranean populations within the single Atlantic population studied. This patternis hereby tentatively ascribed to an incomplete lineage sorting due to the large populationsizes of both the Atlantic and Mediterranean subpopulations of the species. The current westwardexpansion of the species in the Mediterranean Sea originating from the Levantine basin, due toongoing regional sea warming, follows a typical phalanx dispersal mode.
Lingua originaleEnglish
pagine (da-a)322-329
Numero di pagine8
RivistaZoological Science
Volume36
Stato di pubblicazionePublished - 2019

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Decapoda
crabs
Crustacea
taxonomy
DNA
basins
phalanges
cohesion
Atlantic Ocean
Mediterranean Sea
sorting
mitochondrial DNA
biogeography
coasts
Ocypodidae
genes

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@article{fbe5b971069849b79fcf363834adbe0c,
title = "DNA Taxonomy Confirms the Identity of the Widely-Disjunct Mediterranean and Atlantic Populations of the Tufted Ghost Crab Ocypode cursor (Crustacea: Decapoda: Ocypodidae)",
abstract = "The distribution area of the tufted ghost crab Ocypode cursor includes two widely separatesub-areas, i.e. the tropical and subtropical Atlantic coasts of Africa and Macaronesia, and thecentral-eastern Mediterranean basin. The current disjunct distribution of the species is possiblythe remnant of a previous wider and continuous distribution area that was fragmented during thePleistocene, with the disappearance of the species from the temperate Atlantic Ocean and thewestern Mediterranean basin, and its survival in the warmer areas of the eastern Atlantic and theMediterranean Sea. Such disjunction is thus compatible with an ancient isolation between theMediterranean and Atlantic populations of the species, which could in fact constitute two wellcharacterizedindependent evolutionary lineages, or even two cryptic species. Unexpectedly, thesequencing of a fragment of the mtDNA COI gene from Mediterranean and Atlantic Ocypode cursorallopatric populations showed the cohesion of the species throughout its distribution range, andthe nesting of Mediterranean populations within the single Atlantic population studied. This patternis hereby tentatively ascribed to an incomplete lineage sorting due to the large populationsizes of both the Atlantic and Mediterranean subpopulations of the species. The current westwardexpansion of the species in the Mediterranean Sea originating from the Levantine basin, due toongoing regional sea warming, follows a typical phalanx dispersal mode.",
author = "Marco Arculeo and Federico Marrone and Luca Vecchioni",
year = "2019",
language = "English",
volume = "36",
pages = "322--329",
journal = "Zoological Science",
issn = "0289-0003",
publisher = "Zoological Society of Japan",

}

TY - JOUR

T1 - DNA Taxonomy Confirms the Identity of the Widely-Disjunct Mediterranean and Atlantic Populations of the Tufted Ghost Crab Ocypode cursor (Crustacea: Decapoda: Ocypodidae)

AU - Arculeo, Marco

AU - Marrone, Federico

AU - Vecchioni, Luca

PY - 2019

Y1 - 2019

N2 - The distribution area of the tufted ghost crab Ocypode cursor includes two widely separatesub-areas, i.e. the tropical and subtropical Atlantic coasts of Africa and Macaronesia, and thecentral-eastern Mediterranean basin. The current disjunct distribution of the species is possiblythe remnant of a previous wider and continuous distribution area that was fragmented during thePleistocene, with the disappearance of the species from the temperate Atlantic Ocean and thewestern Mediterranean basin, and its survival in the warmer areas of the eastern Atlantic and theMediterranean Sea. Such disjunction is thus compatible with an ancient isolation between theMediterranean and Atlantic populations of the species, which could in fact constitute two wellcharacterizedindependent evolutionary lineages, or even two cryptic species. Unexpectedly, thesequencing of a fragment of the mtDNA COI gene from Mediterranean and Atlantic Ocypode cursorallopatric populations showed the cohesion of the species throughout its distribution range, andthe nesting of Mediterranean populations within the single Atlantic population studied. This patternis hereby tentatively ascribed to an incomplete lineage sorting due to the large populationsizes of both the Atlantic and Mediterranean subpopulations of the species. The current westwardexpansion of the species in the Mediterranean Sea originating from the Levantine basin, due toongoing regional sea warming, follows a typical phalanx dispersal mode.

AB - The distribution area of the tufted ghost crab Ocypode cursor includes two widely separatesub-areas, i.e. the tropical and subtropical Atlantic coasts of Africa and Macaronesia, and thecentral-eastern Mediterranean basin. The current disjunct distribution of the species is possiblythe remnant of a previous wider and continuous distribution area that was fragmented during thePleistocene, with the disappearance of the species from the temperate Atlantic Ocean and thewestern Mediterranean basin, and its survival in the warmer areas of the eastern Atlantic and theMediterranean Sea. Such disjunction is thus compatible with an ancient isolation between theMediterranean and Atlantic populations of the species, which could in fact constitute two wellcharacterizedindependent evolutionary lineages, or even two cryptic species. Unexpectedly, thesequencing of a fragment of the mtDNA COI gene from Mediterranean and Atlantic Ocypode cursorallopatric populations showed the cohesion of the species throughout its distribution range, andthe nesting of Mediterranean populations within the single Atlantic population studied. This patternis hereby tentatively ascribed to an incomplete lineage sorting due to the large populationsizes of both the Atlantic and Mediterranean subpopulations of the species. The current westwardexpansion of the species in the Mediterranean Sea originating from the Levantine basin, due toongoing regional sea warming, follows a typical phalanx dispersal mode.

UR - http://hdl.handle.net/10447/367140

M3 - Article

VL - 36

SP - 322

EP - 329

JO - Zoological Science

JF - Zoological Science

SN - 0289-0003

ER -