Body Shape Variation and Population Genetic Structure ofRhoadsia altipinna(Characidae: Rhoadsiinae) in Southwestern Ecuador
| Autor: | Juan C. Granda, Ronald Navarrete, Windsor E. Aguirre, Grecia Valadez, Grace Malato, Webster F. Vital, Virginia R. Shervette, Paola Calle, Vinh H. Vu, Maxine K. Loh |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine education.field_of_study Riffle biology Ecology Fauna Population Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Characidae 03 medical and health sciences 030104 developmental biology Geography Genus Genetic structure Genetic variation Animal Science and Zoology education Ecology Evolution Behavior and Systematics Global biodiversity |
| Zdroj: | Copeia. 104:554-569 |
| ISSN: | 1938-5110 0045-8511 |
| DOI: | 10.1643/cg-15-289 |
| Popis: | The genus Rhoadsia is endemic to western Ecuador and northern Peru and includes two described species that differ in body form, size, and the elevations at which they occur. Unfortunately, there is uncertainty about the number of species that should be recognized in the genus and the causes of the morphological variation documented within and between species. We take advantage of a survey of the fish fauna of the Santa Rosa River in southwestern Ecuador that yielded large numbers of Rhoadsia altipinna, to expand knowledge of the ecological, morphological, and genetic variation of this species. Specimens were collected at five sites at elevations between 31 and 613 m above sea level, and each site was sampled in December 2012 and July 2013. Rhoadsia altipinna was the second most abundant species in the Santa Rosa River, was one of only three species collected at all elevations, and was more common in pool mesohabitats than riffle mesohabitats. Geometric morphometric analysis of body shape variation indicat... |
| Databáze: | OpenAIRE |
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