Vista normal Vista MARC

A new acanthocyclops Kiefer, 1927 (copepoda: cyclopoida) from Central Mexico with comments on the distribution of the genus in Middle America

Tipo de material: Artículo impreso(a) y electrónico Artículo impreso(a) y electrónico Idioma: Inglés Tipo de contenido:
  • Texto
Tipo de medio:
  • Computadora
Tipo de soporte:
  • Recurso en línea
Tema(s) en español: Clasificación:
  • AR/595.34 M4
Recurso en línea: En: International Review of Hydrobiology Volumen 91, número 2 (May 2006), páginas 148-163Nota de acceso: Acceso en línea sin restricciones Resumen:
Inglés

A new species of Acanthocyclops KIEFER is described from central Mexico. It differs from its congeners by a combination of characters including mainly: 11-13 antennular segments, a spine formula of 3444 and modified setae on legs 2-4. The presence of a compound distal antennular segment is aberrant within the Cyclopoida. The new species seems to be related to Nearctic forms of the vernalis-robustus clade. Ancestors of this lineage probably reached central Mexico as a result of glaciation events and the new species is a remain of stranded postglacial populations; some of these forms were succesful in colonizing tropical lands. A key for the identification of the species of Acanthocyclops recorded in Mexico is included.

Número de sistema: 41403
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Valoración
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Signatura topográfica Info Vol Estado Código de barras
Artículos Biblioteca Chetumal Artículos (AR) ECOSUR AR/595.34M4 001 Disponible ECO030005763
Artículos Biblioteca Electrónica Recursos en línea (RE) ECOSUR Recurso digital ECO400414039326
Artículos Biblioteca San Cristóbal Artículos (AR) ECOSUR AR 595.34 M4 002 Disponible ECO010017216

Acceso en línea sin restricciones

A new species of Acanthocyclops KIEFER is described from central Mexico. It differs from its congeners by a combination of characters including mainly: 11-13 antennular segments, a spine formula of 3444 and modified setae on legs 2-4. The presence of a compound distal antennular segment is aberrant within the Cyclopoida. The new species seems to be related to Nearctic forms of the vernalis-robustus clade. Ancestors of this lineage probably reached central Mexico as a result of glaciation events and the new species is a remain of stranded postglacial populations; some of these forms were succesful in colonizing tropical lands. A key for the identification of the species of Acanthocyclops recorded in Mexico is included. Inglés