The fresh-water fishes of Mexico north of the isthmus of Tehuantepec

Meek, Seth Eugene

doi:10.5962/bhl.title.2229

Cited by 68 publications

(60 citation statements)

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“…Consistent recovery of a sister relationship between a widely distributed northern lineage (including Rio Grande–Conchos populations) and a group of southern populations (including populations from the Rio Nazas and Rio Aguanaval drainages) supports Meek’s (1904) hypothesis that the Rio Nazas drainage formerly connected to the Rio Grande drainage. The route suggested by Arellano (1951), who posited a connection between the old Rio Nazas and what is now the Rio San Juan, is difficult to reconcile with the present distribution of C. plumbeum in this river.…”

Section: Discussionmentioning

confidence: 56%

“…The route suggested by Arellano (1951), who posited a connection between the old Rio Nazas and what is now the Rio San Juan, is difficult to reconcile with the present distribution of C. plumbeum in this river. Meek (1904) suggested that the large pluvial palaeolakes Lago Mayran and Lago Viesca – located at the mouth of the Rio Nazas and Rio Aguanaval, respectively – were connected at some former time and may have flowed northward toward the Rio Conchos, affording a dispersal route into these drainages (Burr, 1976). Conant (1963) also suggested that a succession of pluvial lakes during glacial maxima may have connected the Rio Grande, Rio Nazas and Rio Aguanaval.…”

Section: Discussionmentioning

confidence: 99%

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Inter-basin exchange and repeated headwater capture across the Sierra Madre Occidental inferred from the phylogeography of Mexican stonerollers

Schönhuth

Blum

Lozano-Vilano

et al. 2011

Journal of Biogeography

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Aim Geomorphic evolution of river basins can shape the structure and diversity of aquatic communities, but understanding the biological significance of basin evolution can be challenging in semi-arid regions with ephemeral or endorheic conditions and complex drainage configurations such as the Sierra Madre Occidental (SMO) in North America. In this study, we characterized range-wide patterns of genetic variation in the Mexican stoneroller (Campostoma ornatum) to infer how orogenic and erosional influences on river basin connectivity have given rise to the diverse and largely endemic freshwater communities across the SMO region.Location Twelve drainage basins across northern Mexico and the south-western United States, centred on the SMO.Methods We collected 202 specimens from 98 localities across the range of C. ornatum. We performed phylogenetic analyses of DNA sequences from one mitochondrial (cytochrome b) and one nuclear (intron S7) gene. Phylogenetic trees were estimated for each data set using maximum likelihood and Bayesian inference.Results Phylogenetic analyses consistently resolved a monophyletic C. ornatum composed of multiple evolutionary lineages within two markedly divergent clades that differentiate northern drainages from southern drainages in the SMO region. Within-clade patterns of divergence corresponded to fine-scale geographic structure within and among SMO drainage basins. However, the geographic distribution of evolutionary lineages within the northern and southern clades did not always correspond to the geographic configuration of drainage basins. Some subclades encompassed multiple drainages, and individuals from a single drainage were sometimes recovered in multiple subclades. Main conclusions Our findings indicate that a common ancestor of MexicanCampostoma is likely to have entered north-west Mexico through an ancient Rio Grande system that extended as far south as the Rio Nazas and Rio Aguanaval. The geographic orientation of the two strongly divergent clades recovered within C. ornatum provides evidence of long-standing isolation of southern basins from northern basins within the ancestral Rio Grande system, possibly due to the combined influence of tectonic events and increasing regional aridity. Geographic patterns of genetic variation also provide evidence of range expansion from Atlantic to Pacific drainages due to drainage evolution and river capture events, as well as further inter-basin exchange via more recent headwater capture events, hydrological connections and possible anthropogenic introductions.

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 99%

Inter-basin exchange and repeated headwater capture across the Sierra Madre Occidental inferred from the phylogeography of Mexican stonerollers

Schönhuth

Blum

Lozano-Vilano

et al. 2011

Journal of Biogeography

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“…Las medidas corporales se expresan como porcentaje de la longitud estándar (SL). La comparación y evaluación taxonómica de la nueva especie y sus congéneres se realizó contrastando las descripciones originales de las especies válidas, sinónimos y enmiendas taxonómicas (Meek 1904, Regan 1905, Miller & Nelson 1961, Rivas 1962, Miller & Taylor 1984.…”

Section: Materials Y Métodosunclassified

Descripción de Thorichthys panchovillai sp. n., una nueva especie de cíclido (Actinopterygii: Cichlidae) de la cuenca del Río Coatzacoalcos, México

2017

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ThorichThys panchovillai sp. n., una nueva especie de cíclido de la cuenca del Río Coatzacoalcos, México Información sobre los autores:LFdMF, ELS y TAH realizaron el trabajo de campo, análisis y mediciones de ejemplares. LFdMF realizó la edición del material gráfico, análisis y búsqueda de los especímenes para la comparación taxonómica, y realizó la descripción de la especie nueva. ELS y TAH intervinieron en el proceso curatorial y toma de fotografías. ELS, realizó la transparentación de ejemplares. Todos los autores participaron en la redacción del artículo.Los autores no incurren en conflictos de intereses. Presentado:23/08/2016 Aceptado:15/02/2017 Publicado online: 20/04/2017 ResumenThorichthys panchovillai, nueva especie, es descrita de los tributarios de la cuenca del Río Coatzacoalcos, México. La especie es diagnosticada por un conjunto de caracteres: radios de la aleta dorsal XVI, 8 -9; radios de la aleta anal VII, 6 -7; radios de la aleta pectoral, I, 11 -12; branquiespinas totales en el primer arco branquial 11 -12; mancha del subopérculo presente pero débilmente intensificada, en especial presenta un marcado dimorfismo sexual único y que le distingue del resto de sus congéneres: en la hembra se presenta una mancha negra entre la quinta y sexta espina dorsal.Palabras clave: Cichliformes; ictiología; Neotrópico; sistemática; taxonomía; agua dulce; nueva especie. AbstractThorichthys panchovillai, new species, is described, from distinctive of the tributaries of the River Coatzacoalcos basin, Mexico. The new species is diagnosed by a set of characters: dorsal fin rays XVI, 8 -9; anal fin rays VII, 6 -7; pectoral fin rays, I, 11 -12; total gill-rakers on the first branchial cleft 11 -12; subopercular stain present although weakly intensified, it exposes a notable sexual dimorphism that distinguishes it from others: the female possess a black blotch between the fifth and sixth dorsal spine.

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“…Xiphophorus species typically inhabit freshwater streams and rivers, from high‐elevation headwaters to the foothills and coastal plains (Kallman & Kazianis, ). The genus represents an excellent group for comparative studies due to its broad geographic range, well‐known species distributional limits stemming from a rich history of field collections beginning more than 100 years ago (Meek, ), and a complete and well‐resolved phylogeny based on whole‐genome data (Jones et al ., ). Sexual selection is often assumed to be a key driver of diversification in Xiphophorus (Meyer et al ., ; Wong & Rosenthal, ; Cui et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Correlated evolution of thermal niches and functional physiology in tropical freshwater fishes

Culumber

Tobler

2018

J of Evolutionary Biology

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The role of ecology in phenotypic and species diversification is widely documented. Nonetheless, numerous nonadaptive processes can shape realized niches and phenotypic variation in natural populations, complicating inferences about adaptive evolution at macroevolutionary scales. We tested for evolved differences in thermal tolerances and their association with the realized thermal niche (including metrics describing diurnal and seasonal patterns of temperature extremes and variability) across a genus of tropical freshwater fishes reared in a standardized environment. There was limited evolution along the thermal niche axis associated with variation in maximum temperature and in upper thermal limits. In contrast, there was considerable diversification along the first major axis of the thermal niche associated with minimum temperatures and in lower thermal limits. Across our adaptive landscape analyses, 70% of species exhibited evidence of divergence in thermal niches. Most importantly, the first two major axes of thermal niche variation were significantly correlated with variation in lower thermal limits. Our results indicate adaptation to divergent thermal niches and adaptive evolution of related functional traits, and highlight the importance of divergence in lower thermal limits for the evolution of tropical biodiversity.

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The fresh-water fishes of Mexico north of the isthmus of Tehuantepec

Cited by 68 publications

References 0 publications

Inter-basin exchange and repeated headwater capture across the Sierra Madre Occidental inferred from the phylogeography of Mexican stonerollers

Inter-basin exchange and repeated headwater capture across the Sierra Madre Occidental inferred from the phylogeography of Mexican stonerollers

Descripción de Thorichthys panchovillai sp. n., una nueva especie de cíclido (Actinopterygii: Cichlidae) de la cuenca del Río Coatzacoalcos, México

Correlated evolution of thermal niches and functional physiology in tropical freshwater fishes

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