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Showing 1 to 9 of 9 for “"Poeciliidae"”.
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Revisão taxonômica e filogenia do gênero Micropoecilia Hubbs (Cyprinodontiformes: Poeciliidae)
Monophyly of the genus Micropoecilia is supported by 13 synapomorphic features: lateral projection of dentary absent; longitudinaly elongated vomer; non-elongated posterior portion of dorsal arch; reduced second pharyngobranchial dentition; process on the anterior border of first hypobranchial …
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Revisão taxonômica e filogenia de Pamphorichtlys Regan, 1913 (Cyprinodontiformes; Poeciliidae)
Pamphorichthys diagnosis is based on twenty-seven apomorphic character states, mainly from the pelvic fins. Among the autapomorphies of the genus, eleven are reductive characters due to the species miniaturization. The included species are: Pamphorichthys minor (Garman), P. scalpridens (Garman), P. …
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The Importance of the Multicomponent Display in Sexual Selection of Black Morph Girardinus metallicus (Pisces: Poeciliidae)
<p>Multicomponent displays are composed of traits, such as coloration, structural ornaments, and behavior, that become integrated and signal information to conspecifics. Estimation of multicomponent displays in fishes often involves measurement of color traits. Fish color measurements are often …
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Behavioral Measures and Ecological Correlates of Vision in Poeciliid Fishes
… are major goals of visual ecology research. The Poeciliidae are a diverse family of Neotropical freshwater fishes and are excellent models for visual ecology research given longstanding interest in visual signaling in this group. However, despite extensive research investigating the form and …
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Filogenia e classificação dos peixes poecilióideos (Cyprinodontiformes: Cyprinodontoidei)
… A new classification is proposed, in which Poeciliidae and Procatopodidae assume family status, forming a clade corroborated by 17 apomorphyc morphological characters. Sistergroup relationships between Tomeurus and the remaining poeciliids, as supported in previous classical revisionary …
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Relationships Among Swimming Ability, Habitat use, and Morphology of Freshwater Fishes from Texas and Louisiana
… for Atherinidae (N=l), 16 to 19 cm·s-1 for Poeciliidae (N= 2), and 23 to 41 cm·s·1 for Centrarchidae (N= 4). Mean relative (bl·s-1) speeds ranged from 3.4 to 19.6 bl·s-1 for Cyprinidae, 12.6 bl·s-1 for Characidae, 13.7 bl·s·1 for Ictaluridae, 8.7 bl·s-1 for Cichlidae, 11.1 bl·s·1 for …
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The Maintenance of Male Color Polymorphism in Poecilia parae
<p>Genetic color polymorphisms are common in nature, and a major challenge for evolutionary biologists has been to understand how they are maintained despite the effects of directional selection. Recent studies suggest that frequency-dependent selection may explain the persistence of intraspecific …