|
|||||
|
|
A new and morphologically distinct population of cavernicolous Poecilia mexicana (Poeciliidae: Teleostei) |
|
| Authors: | M Tobler R Riesch F J García de León I Schlupp M Plath |
| Institution: | 1. Zoologisches Institut, Universit?t Zürich, Winterthurerstrasse 190, 8057, Zurich, Switzerland 2. Department of Zoology, University of Oklahoma, 730 Van Vleet Oval, Norman, OK, 73019, USA 3. Centro de Investigaciones Biológicas del Noroeste, S.C., Mar Bermejo No. 195, Col. Playa Palo de Santa Rita, A.P. 128, La Paz, Baja California, 23090, Mexico 4. Institut für Biochemie/Biologie, Abteilung für Evolutionsbiologie/Spezielle Zoologie, Universit?t Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany |
| 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. |
| Keywords: | Cave fish Cave molly Extremophile Hydrogen sulfide Regressive evolution Ecological diversification |
| 本文献已被 SpringerLink 等数据库收录！ | |