A new pelagic predatory pike cichlid (Teleostei: Cichlidae: Crenicichla ) from the C. mandelburgeri species complex with parallel and reticulate evolution

The Crenicichla mandelburgeri species complex from the Middle Parana shows parallel evolution of ecomorphs to the unrelated C. missioneira species complex from the Uruguay River. In this article, we describe a new species from the C. mandelburgeri species complex that has evolved a parallel morpholo...

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Autores principales: Piálek, Lubomír, Casciotta, Jorge Rafael, Almirón, Adriana Edith, Říčan, Oldřich
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Zoología
Convergence
Diversification
Replicated evolution
Species flock
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/137531
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-137531
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Convergence
Diversification
Replicated evolution
Species flock
spellingShingle Zoología
Convergence
Diversification
Replicated evolution
Species flock
Piálek, Lubomír
Casciotta, Jorge Rafael
Almirón, Adriana Edith
Říčan, Oldřich
A new pelagic predatory pike cichlid (Teleostei: Cichlidae: Crenicichla ) from the C. mandelburgeri species complex with parallel and reticulate evolution
topic_facet Zoología
Convergence
Diversification
Replicated evolution
Species flock
description The Crenicichla mandelburgeri species complex from the Middle Parana shows parallel evolution of ecomorphs to the unrelated C. missioneira species complex from the Uruguay River. In this article, we describe a new species from the C. mandelburgeri species complex that has evolved a parallel morphology and ecology to an unrelated species from the C. missioneira species complex (C. celidochilus). The new species is a pelagic predator that feeds predominantly on fishes and together with C. celidochilus is the only known pelagic species in the large riverine genus Crenicichla. The new species is endemic solely to a small tributary (the Urugua-i) of the Middle Parana River where it is sympatric and partly syntopic with two other closely related endemic species that, however, differ strongly in their ecomorphologies (one is a generalistic invertivore and the other a specialized molluscivore). Mitochondrial DNA phylogeny finds the new species nested within the widespread C. mandelburgeri. Reduced genome-representation ddRAD analyses, however, demonstrate that this new species is of a hybrid origin and shares ancestry with C. ypo, one of the two studied sympatric species.
format Articulo
Articulo
author Piálek, Lubomír
Casciotta, Jorge Rafael
Almirón, Adriana Edith
Říčan, Oldřich
author_facet Piálek, Lubomír
Casciotta, Jorge Rafael
Almirón, Adriana Edith
Říčan, Oldřich
author_sort Piálek, Lubomír
title A new pelagic predatory pike cichlid (Teleostei: Cichlidae: Crenicichla ) from the C. mandelburgeri species complex with parallel and reticulate evolution
title_short A new pelagic predatory pike cichlid (Teleostei: Cichlidae: Crenicichla ) from the C. mandelburgeri species complex with parallel and reticulate evolution
title_full A new pelagic predatory pike cichlid (Teleostei: Cichlidae: Crenicichla ) from the C. mandelburgeri species complex with parallel and reticulate evolution
title_fullStr A new pelagic predatory pike cichlid (Teleostei: Cichlidae: Crenicichla ) from the C. mandelburgeri species complex with parallel and reticulate evolution
title_full_unstemmed A new pelagic predatory pike cichlid (Teleostei: Cichlidae: Crenicichla ) from the C. mandelburgeri species complex with parallel and reticulate evolution
title_sort new pelagic predatory pike cichlid (teleostei: cichlidae: crenicichla ) from the c. mandelburgeri species complex with parallel and reticulate evolution
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/137531
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