Rogelio Rosas-Valdez

Rogelio Rosas-Valdez
Autonomous University of Zacatecas · Unidad Académica de Ciencias Biológicas

Dr. in Biological Sciences

About

46
Publications
9,510
Reads
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657
Citations
Citations since 2016
21 Research Items
293 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
Additional affiliations
August 2012 - present
Autonomous University of Zacatecas
Position
  • Professor researcher
September 2009 - September 2011
Universidad Nacional Autónoma de México
Position
  • Postdoctoral research
January 2008 - February 2009
Universidad Nacional Autónoma de México
Position
  • Technician

Publications

Publications (46)
Article
Species of the genus Lithobates are difficult to identify, especially on the ‘Rana pipiens’ complex, because the morphological differences among the species are often subtle. In this study, we used 12S ribosomal RNA gene partial sequences to identify specimens of leopard frogs from some new localities (not sampled on previous studies) of the Southe...
Article
Adult worms of the genus Floridosentis are endoparasites of marine fishes of the genus Mugil and are broadly distributed in the Americas. Currently, Floridosentis includes two species, F. mugilis, distributed in the Gulf of Mexico and along the Atlantic Ocean coast, and F. pacifica, restricted to the Pacific Ocean coast. The aim of this study was t...
Article
Sixty-eight lizards representing 4 species (Aspidoscelis mexicanus, Sceloporus horridus, Sceloporus ochoterenae, and Urosaurus bicarinatus) collected from the locality of Santiago Tamazola in the Mixteca Region of Oaxaca, Mexico were examined for gastrointestinal helminths. One species of Cestoda, Mesocestoides sp. (tetrathyridium larvae), and 2 sp...
Article
Full-text available
The Mexican free-tailed bat (Tadarida brasiliensis) is an abundant, widely distributed species in Mexico, except for most of the Yucatán peninsula. We studied the helminth fauna of T. b. mexicana at seven localities in the State of Zacatecas in order to advance the knowledge of helminth parasites of wild vertebrates in northern-central Mexico. Eigh...
Article
Full-text available
A new technique based on the Band-Limited Phase-Only Correlation (BLPOC) function to deal with acoustic individual identification is proposed in this paper. This is a biometric technique suitable for limited data individual bird identification. The main advantage of this new technique, in contrast to traditional algorithms where the use of large-sc...
Article
Environmental heterogeneity is expected to increase the richness and diversity of species. The aim of this study is to identify environmental elements that influence the richness and diversity of small, medium and large species of mammals. For the sampling of mammals, camera and Sherman traps were used at 18 sampling stations. For vegetation sampli...
Article
Full-text available
A unique record of the desert shrew in Zacatecas, Mexico, is known and has been collected since 1897 in the locality “El Plateado” within the municipality of El Plateado de Joaquin Amaro, Zacatecas. On October 2016, two specimens were collected from the municipality of Susticacán, Zacatecas, Mexico. A morphological identification and phylogenetic a...
Article
Metarhizium anisopliae is a complex of cryptic species with wide geographical distribution and versatile lifestyles. In this study, 45 isolates of the Metarhizium genus harbored in the "Colección de Hongos Entomopatógenos" of the "Centro Nacional de Referencia de Control Biológico" from different substrates, insect-host, and localities from Colima,...
Article
Full-text available
The knowledge of the helminth parasites of Canis latrans from México is scarce. This study 23 scats of C. latrans were collected and examined to identify alimentary items between April and September of 2018, at the rancho experimental Teseachi of the Universidad Autónoma de Chihuahua, in Namiquipa, Chihuahua, México. Three nematode specimens of Phy...
Article
Full-text available
The knowledge of the helminth parasites of Canis latrans from Mexico is scarce. This study 23 scats of C. latrans were collected and exam- ined to identify alimentary items between April and September of 2018, at the rancho experimental Teseachi of the Universidad Autónoma de Chihuahua, in Namiquipa, Chihuahua, México. Three nematode specimens of P...
Article
The entomopathogenic fungus Beauveria bassiana is used widely as a biological control agent against a wide range of insect pests globally. In this study, 44 Beauveria isolates from the state of Colima, Mexico harbored in the “Colección de Hongos Entomopatógenos” of the “Centro Nacional de Referencia de Control Biológico” and from different substrat...
Article
A new species of chigger mites, Morelacarus uazi n. sp., parasitizing lizards of the species Sceloporus grammicus from Mazapil, Zacatecas, Mexico, is described and illustrated. This new taxon differs from other species of the genus by having a palpal claw with 4 subequal paired prongs, and it can be further distinguished by the combination of the f...
Article
Full-text available
RESUMEN Encontrar un ave atrapada en telaraña es un evento poco común en la naturaleza. En la actualidad se han documentado 69 registros en el mundo, de los cuales siete pertenecen a la Familia Parulidae y sólo un registro para el Género Setophaga. Este trabajo reporta para México la segunda ave atrapada en telaraña, elaborada por araña del Género...
Article
Full-text available
Eighty-six specimens representing 7 species of rodents from 9 localities in the state Zacatecas were examined for helminths. Only 5 host species were found to harbor at least 1 species: Chaetodipus sp., Dipodomys merriami atronasus, Neotoma mexicana, Otospermophilus variegatus, and Peromyscus sp.; in contrast Mus musculus and Reithrodontomys sp., w...
Conference Paper
Full-text available
La bioacústica es la rama de la ciencia que, mediante información acústica, se encarga del estudio de la forma de transmisión y recepción de información biológica con el fin de alcanzar desde la identificación de especies hasta la determinación de la salud de un ecosistema. Algunos desarrollos recientes se han enfocado en la adecuación y aplicación...
Article
Infidum similis Travassos, 1916 (Dicrocoeliidae: Leipertrematinae) was found in the gall bladder of Leptophis diplotropis Günther, 1872 from El Podrido, Acapulco, Guerrero, Mexico. A phylogenetic analysis based on partial sequences of the 28S ribosomal RNA using Maximum likelihood (ML) and Bayesian Inference (BI) analyses was carried out to assess...
Article
Full-text available
In this note, a report of the helminth parasites for A. punctatus from Zacatecas, Mexico is presented.
Article
In this study, we used sequences of mitochondrial and nuclear markers to test the hypothesis that Tabascotrema verai Lamothe-Argumedo and Pineda-López, 1990, a parasite of the cichlid Petenia splendida Günther, 1862 in Middle America, represents a single species, following a molecular prospecting approach. One-hundred and five individuals of T. ver...
Article
Freshwater fish helminths have been studied for more that 80 years in Mexico, and currently the inventory of this parasite fauna is nearing completion. Between 1999 and 2006, we studied 958 freshwater fishes belonging to 34 species in 36 localities distributed along 9 states of the Mexican Republic, north of the Transmexican Volcanic Belt. In total...
Article
Full-text available
Twenty-four worms were collected from the bronchioles in both lungs of a male nine-banded armadillo Dasypus novemcinctus Linnaeus, 1758 captured in Teacalco, Morelos, Mexico. The worms, herein named Metathelazia mexicana n. sp., show a constriction in the esophagus at the level of the nerve ring; males of the species have 7 pairs of papillae, fewer...
Article
Full-text available
Twenty-four worms were collected from the bronchioles in both lungs of a male nine-banded armadillo Dasypus novemcinctus Linnaeus, 1758 captured in Teacalco, Morelos, Mexico. The worms, herein named Metathelazia mexicana n. sp., show a constriction in the esophagus at the level of the nerve ring; males of the species have 7 pairs of papillae, fewer...
Article
The type species of the genus Glossocercus Chandler, 1935, G. cyprinodontis Chandler, 1935, was described as metacestode (larval stage) from the mesentery of the sheepshead minnow fish (Cyprinodon variegatus Lacépède) from Galveston Bay, Texas. The description was based on the morphology of the rostellar hooks; however, the features of the internal...
Article
Full-text available
Species of Floridosentis (Acanthocephala) are common parasites of mullets (Mugil spp., Mugilidae) found in tropical marine and brackish water in the Americas. Floridosentis includes 2 species distributed in Mexico, i.e., Floridosentis pacifica, restricted to the Pacific Ocean near Salina Cruz, Oaxaca, and Floridosentis mugilis, distributed along th...
Article
Host specificity plays an essential role in shaping the evolutionary history of host-parasite associations. In this study, an index of host specificity recently proposed was used to test, quantitatively, the hypothesis that some groups of parasites are characteristics of some host fish families along their distribution range. A database with all pu...
Article
Rosas-Valdez, R., Choudhury, A. & Pérez-Ponce de León, G. (2011). Molecular prospecting for cryptic species in Phyllodistomum lacustri (Platyhelminthes, Gorgoderidae). —Zoologica Scripta, 40, 296–305. Partial sequences of the 28S ribosomal RNA and cytochrome c oxidase I (COI) genes were compared among populations of a widely distributed and morphol...
Article
The helminth parasite fauna of 2 species of freshwater fishes from the upper Piaxtla River in northwestern Mexico was studied. A total of 41 cyprinids, corresponding to 20 Campostoma ornatum and 21 Codoma ornata were analyzed. Six species of platyhelminths were recorded, including 2 species of monogeneans (Gyrodactylus sp. and Dactylogyrus sp.), 3...
Article
A new species of Rhabdochona is described as a parasite of two endemic species of catfishes (Ictalurus dugesii and Ictalurus pricei) from two river basins in central and northern Mexico (Río Ameca and Río Tunal). Rhabdochona ictaluri sp. nov. is characterized by a combination of morphological traits that include the presence of basal teeth, bifurca...
Article
Full-text available
This paper represents the first study of the helminth parasites of freshwater fishes from the Nazas River basinin northern Mexico. Between July 2005 and December 2008, 906 individual fish were collected and examined for helminthparasites in 23 localities along the river basin. Twenty-three species of fish were examined as a part of this inventory w...
Article
We obtained nuclear ITS-1 and mitochondrial cox1 sequences from 225 Crassicutis cichlasomae adults collected in 12 species of cichlids from 32 localities to prospect for the presence of cryptic species. This trematode is commonly found in species of cichlids over a wide geographic range in Middle-America. Population-level phylogenetic analyses of I...
Article
As a part of an ongoing inventory of the helminth parasites of freshwater fishes in Mexico, 676 specimens were collected between November 2007 and December 2008 in 23 localities along the upper Mezquital River Basin in Durango State, northern Mexico. Sixteen species of hosts, mostly corresponding to Nearctic freshwater elements, were studied. A tot...
Article
Full-text available
Neoechinorhynchus golvani is an intestinal parasite of freshwater and brackish water fishes distributed in Mexico. The genetic variability of 40 samples representing 12 populations from north, south, and central Mexico, and 1 from Costa Rica, was estimated by sequencing 2 nuclear genes (ITS1, 5.8S, ITS2, and LSU rDNA, including the domain D2 + D3)....
Article
Ictalurid catfishes represent a family of freshwater fishes exclusively North American in distribution. The Balsas catfish, Ictalurus balsanus, is endemic to the Balsas River drainage in central Mexico, which flows to the Pacific Ocean. In this article we present the helminth fauna of this catfish through a survey along its distributional range in...
Article
Full-text available
Ictaluridae and Heptapteridae (Siluriformes) are 2 families of freshwater fishes distributed in Mexico, with a nearctic and neotropical origin, respectively. This generates a particular interest in the study of its parasitic helminths from the biogeographical point of view. In this study we present a checklist of the helminth parasites of these fre...
Article
Ictaluridae and Heptapteridae (Siluriformes) are 2 families of freshwater fishes distributed in Mexico, with a nearctic and neotropical origin, respectively. This generates a particular interest in the study of its parasitic helminths from the biogeographical point of view. In this study we present a checklist of the helminth parasites of these fre...
Article
Oligogonotylus mayae n.sp. is described from the intestine of the Mayan cichlid Cichlasoma urophthalmus (Günther) in Ría Lagartos, Ría Celestún, and Estero Progreso, Yucatán State. This is the second species described for Oligogonotylus Watson, 1976, the other being O.manteri Watson, 1976. The new species is readily distinguished from O. manteri by...
Article
A new species of Crassicutis Manter, 1936 is described from the Sinaloan cichlid Cichlasoma beani (Jordan) (Osteichthyes: Cichlidae) in the upper Río Santiago basin. Crassicutis choudhuryi n. sp. differs from most of the other nominal species by having testes located in a symmetrical position. The only other species of the genus that includes some...
Article
The systematic relationships of aspinose allocreadiid-like digeneans from Middle-American and Neotropical freshwater fishes, such as Wallinia Pearse, 1920, Margotrema Lamothe-Argumedo, 1970, Magnivitellinum Kloss, 1966 and other related genera, remain enigmatic. Wallinia (2 spp.) and Margotrema (2 spp.) have been placed in the subfamily Walliniinae...
Article
Species of Allocreadiidae are an important component of the parasite fauna of freshwater vertebrates, particularly fishes, and yet their systematic relationships with other trematodes have not been clarified. Partial sequences of the 18S and 28S ribosomal RNA genes from 3 representative species of Allocreadiidae, i.e., Crepidostomum cooperi, Bunode...
Article
We examined 50 amphibians of 4 species (Bufo marinus, B. nebulifer, Rana berlandieri, and Scaphiopus couchii) from 4 localities in the state of Nuevo Leo´n, Mexico. We collected 7 species of digeneans (Cephalogonimus americanus, Clinostomum sp. (metacercariae), Haematoloechus complexus, Halipegus occidualis, Langeronia cf. macrocirra, L. cf. jimene...
Article
Partial sequences of the 28S rDNA (ribosomal gene) were obtained from a total of 11 populations of 5 species (in 3 genera) of North American corallobothriine proteocephalideans. These included Corallobothrium fimbriatum (3 populations), Corallobothrium parafimbriatum (1 population), Corallotaenia minutia (1 population), Megathylacoides giganteum (2...
Article
The taxonomic status of Choanoscolex lamothei, a proteocephalidean tapeworm described from the catfish Ictalurus meridionalis (= I. furcatus) from Oaxaca, Mexico, was evaluated on the basis of morphological examination of types and freshly collected specimens from the type host and partial sequences of the large subunit (28S) ribosomal DNA. This st...

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