Vista normal Vista MARC

Taxonomy of Gila in the lower Colorado River basin of Arizona and New Mexico

Page, Lawrence M [autor/a] | Baldwin, Carole C [autor/a] | Espinosa Pérez, Héctor [autor/a] | Findley, Lloyd T [autor/a] | Gilbert, Carter R [autor/a] | Hartel, Karsten E [autor/a] | Lea, Robert N [autor/a] | Mandrak, Nicholas E [autor/a] | Schmitter Soto, Juan Jacobo [autor/a] | Walker Jr., H. Jesse [autor/a].
Tipo de material: Artículo en línea Artículo en línea Tema(s): Gila | Peces de agua dulce | Variación morfológica | Taxonomía de pecesTema(s) en inglés: Gila | Freshwater fishes | Morphological variation | Fishes taxonomyDescriptor(es) geográficos: Cuenca del Río Colorado Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Fisheries. volumen 42, número 9 (September 2017), páginas 456-460. --ISSN: 1548-8446Número de sistema: 58447Resumen:
Inglés

A publication by Moran et al. (2017) on species of Gila in the Gila River basin appeared after our paper was in press. The goal of their study was to test whether previously used morphological characters could differentiate G. robusta, G. intermedia, and G. nigra from one another, and if not, to discover methods that are better suited for identifying these species based on morphology. The study found that the variables proposed by Rinne (1976) and Minckley and DeMarais (2000) could not be used to identify individuals to species but that geometric morphometrics could be used to differentiate the species. The study used canonical variate analysis, which requires a priori designation of groups and maximizes differences among these groups. Because of this, and noting the clear effect of geographic location on morphological variation in Gila, the authors concluded that "it is difficult to decide if the three species should be retained as valid, recognized as a single species, or considered as subspecies." We view this study, while interesting and well conceived, as another that failed to recognize populations of G. robusta as belonging to more than one species.

Recurso en línea: http://afs.tandfonline.com/doi/abs/10.1080/03632415.2017.1356108
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Star ratings
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Signatura Estado Fecha de vencimiento Código de barras
Artículos Biblioteca Electrónica
Recursos en línea (RE) 		ECOSUR Recurso digital ECO400584475303

Disponible para usuarios de ECOSUR con su clave de acceso

A publication by Moran et al. (2017) on species of Gila in the Gila River basin appeared after our paper was in press. The goal of their study was to test whether previously used morphological characters could differentiate G. robusta, G. intermedia, and G. nigra from one another, and if not, to discover methods that are better suited for identifying these species based on morphology. The study found that the variables proposed by Rinne (1976) and Minckley and DeMarais (2000) could not be used to identify individuals to species but that geometric morphometrics could be used to differentiate the species. The study used canonical variate analysis, which requires a priori designation of groups and maximizes differences among these groups. Because of this, and noting the clear effect of geographic location on morphological variation in Gila, the authors concluded that "it is difficult to decide if the three species should be retained as valid, recognized as a single species, or considered as subspecies." We view this study, while interesting and well conceived, as another that failed to recognize populations of G. robusta as belonging to more than one species. eng

Disponible en línea

Adobe Acrobat profesional 6.0 o superior

Con tecnología Koha