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19 results for “Geophagini”
Figure 2. A in Life history traits of parental care in Crenicichla lepidota (Cichliformes, Geophagini) in the upper Paraguay River basin, Brazil
Figure 2. A couple of Crenicichla lepidota defence your offspring of a non-specific predators. (A) Both Crenicichla lepidota exhibit lateral threat display towards Serrasalmus maculatus; (B) Hyphessobrycon eques (indicated by arrow) approaches offspring(indicated by arrow bottom right) while parents are warding off another Crenicichla lepidota out of shot. (C) Male Crenicichla lepidota (indicated by arrow right) notices threat and charges Hyphessobrycon eques (indicated by arrow left). (D) Cichlasoma dimerus approaches offspring and adult of Crenicichla lepidota.
Figure 1. A in Life history traits of parental care in Crenicichla lepidota (Cichliformes, Geophagini) in the upper Paraguay River basin, Brazil
Figure 1. A couple of Crenicichla lepidota defence your offspring of a conspecific predator. (A) Pair of Crenicichla lepidota with offspring (indicated by arrow) over algae bed. (B) Conspecific aggressor (indicated by arrow) approaches, parents exhibit threat display. (C) Aggressor makes strike, parents continue threat display. (D) Aggressor strikes and is concealed in algae bed. Female (indicated by arrow) moves to prevent attack but fails.
Data from: Historical field records reveal habitat as an ecological correlate of locomotor phenotypic diversity in the radiation of Neotropical Geophagini fishes
<p>Phenotypic macroevolutionary studies provide insight into how ecological processes shape biodiversity. However, the complexity of phenotype-ecology relationships underscores the importance of also validating phenotype-based ecological inference with direct evidence of resource use. Unfortunately, macroevolutionary scale ecological studies are often hindered by the challenges of acquiring taxonomically and spatially representative ecological data for large and widely distributed clades. The South American cichlid fish tribe Geophagini represents a continentally distributed radiation whose early locomotor morphological divergence suggests habitat as one ecological correlate of diversification, but an association between locomotor traits and habitat preference has not been corroborated. Field notes accumulated over decades of collecting across South America provide first-hand environmental records that can be mined for habitat data in support of macroevolutionary ecological research. In this study, we applied a newly developed method to transform descriptive field note information into quantitative habitat data, and used it to assess habitat preference and its relationship to locomotor morphology in Geophagini. Field note-derived data shed light on geophagine habitat use patterns and reinforced habitat as an ecological correlate of locomotor morphological diversity. Our work emphasizes the rich data potential of museum collections, including often overlooked material such as field notes, for evolutionary and ecological research.</p>
Data from: Historical field records reveal habitat as an ecological correlate of locomotor phenotypic diversity in the radiation of Neotropical Geophagini fishes
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FIGURE 9 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 9. Geographic distribution and habitat of Geophagus pyrineusi. A. Map of the central portion of the rio Tapajós basin, showing the type locality (white circle) and additional localities (red stars) from where G. pyrineusi is known. B. Type locality, Brazil, Mato Grosso, Alta Floresta, rio Cristalino, tributary of rio Teles Pires, rio Tapajós basin. Photo by Cléber Ricardo dos Santos.
FIGURE 8 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 8. Melanophoric marks present in Geophagus pyrineusi, new species (some marks absent in some specimens). DMP, dorsal melanophoric patch; FB, flank bar; RB, residual bar; LMP, lateral melanophoric patch.
FIGURE 7 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 7. Geophagus pyrineusi immediately after capture; both paratypes from Brazil, State of Mato Grosso. A. MZUSP 118122, 112.1 mm SL, rio Cristalino. B. MZUSP 119717, 82.1 mm SL, rio Teles Pires.
FIGURE 6 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 6. Geophagus pyrineusi, preserved paratypes; both from Brazil, State of Mato Grosso. A. MZUSP 121509, 110.1 mm SL, right view, rio Cristalino. B. MNRJ 1277, 78.7 mm SL, rio Teles Pires.
FIGURE 4 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 4. Polymorphism and ontogenetic variation in Geophagus pyrineusi, new species. A. Holotype, MZUSP 119715, 94.1 mm SL. B. Paratype, MZUSP 119716, 94.1 mm SL. C. Paratype, MZUSP 121509, 110.1 mm SL. D. Paratype, MZUSP 118122, 112.1 mm SL. Notice that the presence and shape of melanophoric marks varies slightly between the two sides in some specimens.
FIGURE 5 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 5. Polymorphism and ontogenetic variation in Geophagus pyrineusi, new species (all paratypes). A. MZUSP 116732, 30.3 mm SL. B. MZUSP 30370, 60.0 mm SL. C. MZUSP 116474, 62.6 mm SL. D. MZUSP 116474, 74.3 mm SL. Notice that the presence and shape of melanophoric marks varies slightly between the two sides in some specimens.
FIGURE 3 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 3. Schematic representation of non-melanophoric flank marks, and part of the fin marks present in species of Geophagus.
FIGURE 1 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 1. Scale counts in cichlid species. Pink, scale series between base of first dorsal-fin spine and the upper lateral line (in this example, 4½); yellow, one of the scales in the upper lateral line; blue, postorbital scales; purple, infraorbital scales (which are counted as a cheek scale row); different shades of grey, scale series on the cheek ventrally to the infraorbital series (in this example, there are five scale rows on the cheek). The naked anterior half of the cheek (green area) is a synapomorphy of Geophagus.
FIGURE 2 in Geophagus pyrineusi: a new species from the rio Teles Pires, rio Tapajós basin, Brazil (Cichliformes: Cichlidae: Geophagini)
FIGURE 2. Schematic representation of non-melanophoric head marks present in species of Geophagus.
Figure 1 from: Mattos JLO, Costa WJEM (2018) Three new species of the 'Geophagus' brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini). Zoosystematics and Evolution 94(2): 325-337. https://doi.org/10.3897/zse.94.22685
Figure 1 Tree topology estimated by Bayesian inference analysis for the 'Geophagus' brasiliensis species group. Numbers before terminal species names are voucher numbers. Numbers above branches indicates Bayesian posterior probabilities and below bootstrap values of the Maximum Parsimony and Maximum Likelihood analyses, respectively, separated by bar. Dashes indicate values below 50 and asterisks indicate maximum support values.
Figure 2 from: Mattos JLO, Costa WJEM (2018) Three new species of the 'Geophagus' brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini). Zoosystematics and Evolution 94(2): 325-337. https://doi.org/10.3897/zse.94.22685
Figure 2 Geophagus rufomarginatus, UFRJ 9994, holotype, 96.8 mm SL; Brazil: Bahia: Rio Buranhém Basin. Scale bar 10 mm. Photograph by J.L.O. Mattos.
Figure 5 from: Mattos JLO, Costa WJEM (2018) Three new species of the 'Geophagus' brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini). Zoosystematics and Evolution 94(2): 325-337. https://doi.org/10.3897/zse.94.22685
Figure 5 Caudal fin colour pattern. A Geophagus multiocellus, UFRJ 8217, topotype. B Geophagus santosi, UFRJ 9998, topotype. Scale bar 10 mm. Photographs by J.L.O. Mattos.
Figure 4 from: Mattos JLO, Costa WJEM (2018) Three new species of the 'Geophagus' brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini). Zoosystematics and Evolution 94(2): 325-337. https://doi.org/10.3897/zse.94.22685
Figure 4 Geophagus multiocellus, UFRJ 11764, holotype, 101.4 mm SL; Brazil: Bahia: Rio de Contas Basin. Scale bar 10 mm. Photograph by J.L.O. Mattos.
Figure 3 from: Mattos JLO, Costa WJEM (2018) Three new species of the 'Geophagus' brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini). Zoosystematics and Evolution 94(2): 325-337. https://doi.org/10.3897/zse.94.22685
Figure 3 Geographical distribution of the 'Geophagus' brasiliensis species group in northeast Brazil: red star, G. itapicuruensis; red triangle, G. obscurus; yellow triangle, G. diamantinensis; red circle, G. santosi; black diamond, G. multiocellus; yellow circle, G. rufomarginatus. Raw data set source was obtained from Natural Earth public domain (http://www.naturalearthdata.com).
Figure 6 from: Mattos JLO, Costa WJEM (2018) Three new species of the 'Geophagus' brasiliensis species group from the northeast Brazil (Cichlidae, Geophagini). Zoosystematics and Evolution 94(2): 325-337. https://doi.org/10.3897/zse.94.22685
Figure 6 Geophagus santosi, UFRJ 11765, holotype, 110.6 mm SL; Brazil: Bahia: Mariana River. Scale bar 10 mm. Photograph by J.L.O. Mattos.
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International Brain Laboratory public data
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OpenNeuro
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