Alejandra López-Jiménez

Species delimitation of Apharyngostrigea Ciurea, 1927 (Digenea: Diplostomoidea) based on morphology and molecular data from the Neotropical region of Mexico

Alejandra López-Jiménez, Martín García‐Varela, Rogelio Aguilar‐Aguilar

Abstract The genus Apharyngostrigea comprises a group of diplostomoidean digeneans that parasitize birds of the family Ardeidae (herons), with approximately 20 species described worldwide. Despite numerous efforts, a robust phylogenetic framework to delimit species within the genus is still lacking, mainly due …

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A phylogeographic study of two acanthocephalan species from aquatic birds distributed in the Nearctic and neotropical region of Mexico and the USA

Ana Lucia Sereno-Uribe, Marcelo Tonatiuh González-García, Alejandra López-Jiménez, Yeraldin Aldama-Prieto et autres

Abstract Acanthocephalans, which are in the family Polymorphidae, are a globally distributed group of endoparasites whose adults reside in the intestines of fish-eating birds, waterfowl and marine mammals. Adults of Polymorphus brevis and Pseudocorynosoma constrictum are endoparasites of fish-eating birds (Ardeids) and …

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Taxonomía integrativa: la importancia de usar muchos caracteres para identificar especies

Leopoldo Andrade-Gómez, Alejandra López-Jiménez, Gerardo Pérez‐Ponce de León

La práctica taxonómica es inherente a la necesidad del ser humano de nombrar a los objetos y seres vivos de su entorno. Carlos Linneo fundó la disciplina de la taxonomía en un ámbito completamente biológico; además, propuso nombrar las especies bajo un …

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A phylogeographic approach of three species of Clinostomum Leidy, 1856, (Trematoda: Clinostomidae) from the Neotropical region of Mexico, with the description of a new species from Ardea herodias (Ardeidae)

Ana Lucia Sereno-Uribe, Alejandra López-Jiménez, Marcelo Tonatiuh González-García, Mirza Patricia Ortega-Olivares et autres

Clinostomum Leidy, 1856 is a globally distributed group of endoparasites that reside attached to the mucosa of the mouth cavity and oesophagus of fish-eating birds (mainly herons) in the adult stage, whereas larvae known as metacercariae (“yellow grubs”) damage freshwater fish and …

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Unravelling the diversity of Posthodiplostomum Dubois, 1936 (Trematoda: Diplostomidae) in fish-eating birds from the Neotropical region of Mexico, with the description of a new species

Marcelo Tonatiuh González-García, Alejandra López-Jiménez, Mirza Patricia Ortega-Olivares, Ana Lucia Sereno-Uribe et autres

Abstract Adults of the genus Posthodiplostomum, Dubois, 1936 are parasites of fish-eating birds, mainly of the family Ardeidae, and are globally distributed. The genus currently comprises 35 species, although recent molecular evidence has shown that the diversity of the genus is underestimated …

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Vislumbrando la diversidad de clinostomidos (Platyhelminthes: Digenea), parásitos asociados a peces y aves acuáticas en México y Centroamérica mediante información obtenida de la biología molecular

Martín García-Varela, Ana Lucia Sereno-Uribe, Alejandra López-Jiménez, Mirza Patricia Ortega-Olivares et autres

Los miembros del género Clinostomum, son un grupo de parásitos que en estadio adulto residen en la cavidad bucal de aves ictiófagas, mientras que la fase de larva conocida como metacercaria, se encuentran en forma de quiste de color amarillo en músculo, …

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Contrasting the population genetic structure of a specialist (Hexaglandula corynosoma: Acanthocephala: Polymorphidae) and a generalist parasite (Southwellina hispida) distributed sympatrically in Mexico

Martín García‐Varela, Alejandra López-Jiménez, Marcelo Tonatiuh González-García, Ana Lucia Sereno-Uribe et autres

Abstract Polymorphidae is a monophyletic group of acanthocephalans distributed worldwide. Within this family,Hexaglandula corynosomais a specialist species that uses a single bird species as a definitive host.Southwellina hispidais a generalist species that uses a broad spectrum of definitive hosts to complete its …

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Molecular and morphological characterization ofAndracantha gravida(Alegret, 1941) (Acanthocephala: Polymorphidae) in piscivorous birds from the Gulf of Mexico

Martín García‐Varela, Jesús S. Hernández‐Orts, Alejandra López-Jiménez, Marcelo Tonatiuh González-García

Abstract Adult specimens ofAndracantha gravida(Alegret, 1941) were recorded from the intestines of the double-crested cormorantNannopterum auritus(Lesson) (type host) and brown pelicanPelecanus occidentalisL. in two localities from Mexico: Celestún, Yucatan (south-eastern) and Punta Piedra, Tamaulipas (north-eastern). The specimens ofA. gravidaare morphologically characterized by …

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Phylogenetic analyses based on molecular and morphological data reveal a new species ofStrigeaAbildgaard, 1790 (Digenea: Strigeidae) and taxonomic changes in strigeids infecting Neotropical birds of prey

Alejandra López-Jiménez, Marcelo Tonatiuh González-García, Leopoldo Andrade-Gómez, Martín García‐Varela

Abstract Members of the genusStrigeaAbildgaard, 1790 are endoparasites of birds distributed worldwide. Adults of an undescribed species of the genusStrigeawere collected from the intestines of two hawk species (Rupornis magnirostrisandAccipiter coperii). Other species identified asParastrigea macrobursathat were described in Argentina were also …

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Scaphanocephalus spp. (Trematoda: Opisthorchiidae) in intermediate and definitive hosts of the Yucatán Peninsula, Mexico, with a re-description of Scaphanocephalus expansus

Marcelo Tonatiuh González-García, Martín García‐Varela, Alejandra López-Jiménez, Mirza Patricia Ortega-Olivares et autres

Summary Scaphanocephalus is a small trematode genus belonging to the family Opistorchiidae. The genus currently contains only three species associated with marine fish as intermediate hosts and fish-eating birds as definitive hosts. Here, specimens of Scaphanocephalus were collected from the Osprey, Pandion …

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First record of Patagifer bilobus (Rudolphi, 1819) Dietz, 1909 (Digenea: Echinostomatidae), with a morphological and molecular characterization from two threskiornithid species in Mexico

Ana Lucia Sereno-Uribe, Marcelo Tonatiuh González-García, Mirza Patricia Ortega-Olivares, Alejandra López-Jiménez et autres

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Phenotypic plasticity, genetic structure and systematic position ofNeoechinorhynchus emyditoidesFisher, 1960 (Acanthocephala: Neoechinorhynchidae): a parasite of emydid turtles from the Nearctic and Neotropical regions

Ana Lucia Sereno-Uribe, Alejandra López-Jiménez, Marcelo Tonatiuh González-García, Carlos Daniel Pinacho-Pinacho et autres

Abstract The taxonomy of the 10 recognizedNeoechinorhynchusspecies associated with emydid turtles is complex due to the morphological conservatism. In the present study, specimens ofN. emyditoidesfrom northern and southeastern Mexico exhibit great phenotypic plasticity on its diagnostic characteristics. We sequenced three molecular markers: …

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