Helminth infracommunity of the cane toad Rhinella marina (Anura: Bufonidae) within its native distribution range
Por:
Ruiz-Torres N., García-Prieto L., Lagunas-Calvo O., Violante-González J., Osorio-Sarabia D.
Publicada:
1 ene 2017
Resumen:
During August 2010, a total of 66 cane toad Rhinella marina were collected in Laguna de Coyuca, Guerrero, Mexico and examined for the presence of helminths. Ninety-two percent were parasitized by 1 or more parasite species. A total of 4624 individuals were found, belonging to 8 helminth taxa (1 digenean, 1 cestode and 6 nematodes). Infracommunities harbored by this host species are highly variable (mean Jaccard similarity index 0.31 ± 0.27); mean percent similarity index 0.26 ± 0.32) and depauperate (mean richness 1.91 ± 0.92; mean abundance 64.4 ± 100.34); almost 50% of them were dominated by Rhabdias fuelleborni, a skin-penetrating nematode. Differences related to host gender and size were found, since males registered infracommunities with lower species richness and diversity than females. The reproductive condition of females (collected during the breeding season) might explain the results obtained; during this season, females invest less in resistance to infection in favor of investing resources in reproduction. However, confirmation of this statement can only be made by sampling in the dry season, when the toads do not reach their reproductive peak. © 2017 Elsevier B.V.
Filiaciones:
Ruiz-Torres N.:
Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Mexico City, CP 04510, Mexico
Laboratorio de Helmintología, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70–153, Mexico City, CP 04510, Mexico
García-Prieto L.:
Laboratorio de Helmintología, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70–153, Mexico City, CP 04510, Mexico
Lagunas-Calvo O.:
Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Mexico City, CP 04510, Mexico
Laboratorio de Helmintología, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70–153, Mexico City, CP 04510, Mexico
Violante-González J.:
Unidad Académica de Ecología Marina, Universidad Autónoma de Guerrero, Gran Vía Tropical No. 20, Fraccionamiento Las Playas, Acapulco, Guerrero 39390, Mexico
Osorio-Sarabia D.:
Colegio de Ciencias y Humanidades, Plantel Oriente, Universidad Nacional Autónoma de México, Mexico City, CP 09210, Mexico
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