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A new and morphologically distinct population of cavernicolous Poecilia mexicana (Poeciliidae: Teleostei)


Tobler, M; Riesch, R; García de León, F J; Schlupp, I; Plath, M (2008). A new and morphologically distinct population of cavernicolous Poecilia mexicana (Poeciliidae: Teleostei). Environmental Biology of Fishes, 82(1):101-108.

Abstract

The cave molly, Poecilia mexicana, from the Cueva del Azufre, a sulfur cave in Tabasco, Mexico, ranks among the best-studied cave fishes worldwide, despite being known from a single population only. Here we describe a newly discovered second population of cave-dwelling P. mexicana from a nearby, but mostly non-sulfidic cave (Luna Azufre). Despite apparent similarities between the two populations (such as reduced eye diameter and reduced pigmentation), a geometric morphometric analysis revealed pronounced morphological differentiation between the two cave forms.

The cave molly, Poecilia mexicana, from the Cueva del Azufre, a sulfur cave in Tabasco, Mexico, ranks among the best-studied cave fishes worldwide, despite being known from a single population only. Here we describe a newly discovered second population of cave-dwelling P. mexicana from a nearby, but mostly non-sulfidic cave (Luna Azufre). Despite apparent similarities between the two populations (such as reduced eye diameter and reduced pigmentation), a geometric morphometric analysis revealed pronounced morphological differentiation between the two cave forms.

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19 citations in Web of Science®
20 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Zoology (former)
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Uncontrolled Keywords:Cave fish, Cave molly, Extremophile Hydrogen sulfide, Regressive evolution, Ecological diversification
Language:English
Date:May 2008
Deposited On:23 May 2008 08:47
Last Modified:05 Apr 2016 12:23
Publisher:Springer
ISSN:0378-1909
Publisher DOI:10.1007/s10641-007-9258-x
Permanent URL: http://doi.org/10.5167/uzh-2507

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