Neotropical Riverine Cichlids: Adaptive Radiation and Macroevolution at Continental Scales

López‐Fernández, Hernán

doi:10.1007/978-94-024-2080-7_5

Cited by 3 publications

(2 citation statements)

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“…The use of geometric morphometrics, however, has been shown to be very efficient for describing and comparing patterns of morphological variation at different taxonomic scales (Aguilar‐Contreras et al, 2021; Arbour and López‐Fernández 2016; Friedman et al, 2021). Combining this type of morphometric analysis with phylogenetic comparative methods has made it possible to understand the importance of morphological variation in ecological and evolutionary processes (López‐Fernández 2021, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Although cichlids represent an evolutionary model that has been useful for explaining multiple biological diversification events (Burress 2014; Cooper et al, 2010; McMahan et al, 2013), it is currently unknown which evolutionary and ecological processes promoted the origin and morphological diversity of this group of fishes in Middle America (López‐Fernández 2021; Soria‐Barreto et al, 2019). The objectives of the present study were to compare and describe changes in the cranial shape of 17 species of Middle American cichlids of the tribe Heroini, belonging to 5 ecomorphological groups (Říčan et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Comparative analysis of cranial morphology in Middle‐American heroine cichlids (Actinopterygii: Cichliformes)

Olvera‐Ríos

González‐Díaz²,

Soria‐Barreto³

et al. 2023

Journal of Morphology

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Heroine cichlids are characterized by high morphological diversity, mainly in structures related to the capture and processing of food. The existence of ecomorphological groups has been proposed based on feeding behavior, where it is common for some phylogenetically unrelated species to show evolutionary convergence. Using geometric morphometrics and comparative phylogenetic methods, the variation in cranial morphology was evaluated for 17 species of heroine cichlids representing 5 ecomorphs. Cranial ecomorphs were recovered and significant differences were determined. Morphological variation of the ecomorphs was mainly explained by two axes: (1) the position of the mouth determined by the shape of the bones of the oral jaw and (2) the height of the head, defined by the size and position of the supraoccipital crest and the distance to the interopercle-subopercle junction. Cranial variation among species was related to phylogeny. To better understand the evolution of cranial morphology, it is necessary to evaluate the morphofunctional relationship of other anatomical structures related to feeding, as well as to increase the number of study species in each ecomorph by including other lineages.

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