New record of Stolzmann's crab-eating rat Ichthyomys stolzmanni (Rodentia: Cricetidae) in Ecuador
Keywords:
distribution, Ichthyomyini, Sangay National Park, southeastern EcuadorAbstract
Stolzmann's crab-eating rat Ichthyomys stolzmanni is known from six locaties, two of those in the eastern slopes of Ecuador and four in southeastern Peru. We recorded a male specimen in the Jurumbuno River, on the eastern slopes of Ecuador at the province of Morona Santiago. We described the body and cranial characteristics, which are within the range known for the species, except that the tail is bicolored to the medial portion and the rear half is uniformly dark. The digestive tract contained traces of insects (Corydalus sp.), shrimps (Macrobrachium sp.), and isopods (Artystone trisibia); the latter parasitizes fish, and this is the first report of this parasite in the diet of I. stolzmanni. Our record in the Jurumbuno River is the third locality in Ecuador for the species studied, 40 years after its previous capture.References
ALBUJA, L., A. ALMENDÁRIZ, R. BARRIGA, L. D. MONTALVO, F. CÁCERES, Y J. L. ROMÁN. 2012. Fauna de Vertebrados del Ecuador. Instituto de Ciencias Biológicas, Escuela Politécnica Nacional. Quito, Ecuador.
ANAGUANO-YANCHA, F., Y J. BRITO. 2015. Parasitismo de Riggia sp. (Isopoda: Cymothoidae) en dos especies de peces Chaetostoma sp. y Rhamdia quelen del suroriente del Ecuador. Avances en Ciencias e Ingenierías 7:B13-B16.
ANTHONY, H. E. 1923. Preliminary report on Ecuadorean mammals. American Museum Novitates 55:1–14.
BARRIGA, R. 2012. Lista de peces de agua dulce e intermareales del Ecuador. Revista Politécnica 30:83-119.
BRITO, J., H. ORELLANA-VÁSQUEZ., H. CADENA-ORTIZ., R. VARGAS., G. POZO-ZAMORA., Y J. CURAY. 2015. Mamíferos pequeños en la dieta de la lechuza Tyto alba (Strigiformes: Tytonidae) en dos localidades del occidente de Ecuador, con ampliación distribucional de Ichthyomys hydrobates (Rodentia: Cricetidae). Papéis Avulsos de Zoologia 55(19):261-268.
MAESTRI, R., Y B. D. PATTERSON. 2016. Patterns of Species Richness and Turnover for the South American Rodent Fauna. PLoS ONE 11(3):1-18.
MYERS, N., R. A. MITTERMEIER, C. G. MITTERMEIER, G. A. B. DA FONSECA, Y J. KENT. 2000. Biodiversity hotspots for conservation priorities. Nature 403:853-858.
PACHECO, V. 2003. Phylogenetic analyses of the Thomasomyini (Muroidea: Sigmodontinae) based on morphological data. PhD. dissertation. The City University New York. New York, EEUU:
PACHECO, V., Y J. UGARTE-NÚÑEZ. 2011. New records of Stolzmann’s fish-eating rat Ichthyomys stolzmanni (Cricetidae, Sigmodontinae) in Peru: A rare species becoming a nuisance. Mammalian Biology 76:657-661.
PRADO, J. R., P. G. G. BRENNAND, L. P. GODOY, G. S. LIBARDI, E. F. ABREU-JÚNIOR, P. R. O. ROTH, E. A. CHIQUITO, Y A. R. PERCEQUILLO. 2014. Species richness and areas of endemism of oryzomyine rodents (Cricetidae, Sigmodontinae) in South America: an NDM/VNDM approach. Journal of Biogeography 42:540-551.
SANTILLÁN, V., Y E. SEGOVIA. 2013. Primer registro de la rata cangrejera de Tweedy Ichthyomys tweedii (Sigmodontinae:Ichthyomyini) en la provincia del Azuay, Ecuador. Mastozoología Neotropical 20:421-424.
THOMAS, O. 1893. On some mammals from central Peru. Proceedings Zoological Society of London 23:333–341.
TIRIRA, D. 2007. Guía de campo de los Mamíferos del Ecuador. Quito: Ediciones Murciélago Blanco.
TIRIRA, D. (ED.). 2011. Libro Rojo de los mamíferos del Ecuador, segunda edición. Fundación Mamíferos y Conservación, Pontificia Universidad Católica del Ecuador y Ministerio del Ambiente del Ecuador, publicación especial sobre los mamíferos del Ecuador 8. Quito, Ecuador.
VOSS, R. 1988. Systematics and Ecology of Ichthyomyne Rodents (Muroidea): Patterns of morphological Evolution in a small Adaptive Radiation. Bulletin of the American Museum of Natural History 188:259- 493.
VOSS, R. S., J. L. SILVA, Y J. A. VALDES. 1982. Feeding behavior and diets of Neotropical water rats, genus Ichthyomys Thomas, 1893. Zeitschrift fur Saugetierkunde 47:364–369.
Published
Issue
Section
License
THERYA is based on its open access policy allowing free download of the complete contents of the magazine in digital format. It also authorizes the author to place the article in the format published by the magazine on your personal website, or in an open access repository, distribute copies of the article published in electronic or printed format that the author deems appropriate, and reuse part or whole article in own articles or future books, giving the corresponding credits.
