New data on Abrawayaomys chebezi (Rodentia, Cricetidae), a poorly known South American sylvan rodent
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Ulyses F.J. Pardiñas
,
Pablo Teta
Abstract
Abrawayaomys chebezi is a spiny sigmodontine believed endemic to the Atlantic Forest of Misiones Province, Argentina. The available knowledge is largely restricted to the holotype, the only fully vouchered specimen. Here, we detail a second specimen, a subadult male obtained in the Parque Provincial Urugua-í (Misiones). The morphology of this animal confirms several diagnostic traits of A. chebezi, such as its smaller size relative to Abrawayaomys ruschii, the type species of the genus, and the simplified occlusal structure of its molars. New data on soft anatomy indicate that chebezi has a unilocular-hemiglandular stomach, no gall bladder, and a complex tridigitate penis with an external surface covered by rounded spines. A rich parasite assemblage including fleas and mites was recorded from this animal. A preliminary review of the alpha taxonomy of Abrawayaomys suggests the possible existence of three different species in the genus, one still unnamed.
Acknowledgments
Several persons helped or favored field activities in the PP Urugua-í, including G. Navone, R. Robles, J. Sánchez, G. Panisse, J. Barneche, C. Ezquiaga, N. Guerreiro Martins, and J. Torres. Permits to collect in this protected area were provided by Ministerio de Ecología y Recursos Naturales Renovables de la provincia de Misiones; we are indebted to M. Schroder and to F. Tejeda Cajas. Particular thanks are extended to M. Chudi, for his hospitality and logistic support, working at the Secciónal Uruzú del PP Urugua-í. G. D’Elía freely obtained and shared with us the cytb sequence of the new specimen of Abrawayaomys reported here. A. Percequillo kindly allowed the inspection – during a short trip made by the senior author – of several specimens of Abrawayaomys under their care in Piracicaba (SP). The critical reading of F. Catzeflis improved the accuracy of the original manuscript. J. Patton improved this contribution not only for the English usage but also by providing important advice on how to present our ideas. Partial funds for this research were obtained from Agencia PICT 2008-547 to UFJP; field activities were economically supported through Agencia PICT 0924-2010 “Diversidad de parásitos en ensambles de roedores sigmodontinos en el NE argentino” (to G. Navone). This is Grupo de Estudios de Mamíferos Australes (GEMA) contribution no. 15.
References
Carleton, M.D. 1973. A survey of gross stomach morphology in New World Cricetinae (Rodentia, Muroidea), with comments on functional interpretations. Miscel. Pub. Mus. Zool. Univ. Michigan 146: 1–43.Suche in Google Scholar
Carrizo, J. and S. Isasmendi, 1994. Flora del Valle de Lerma. Loganiaceae Mart. Aportes Botánicos de Salta, Ser. Flora 2: 1–8.Suche in Google Scholar
Carrizo, L., M. Tulli, D. Dos Santos and V. Abdala. 2013. Interplay between postcranial morphology and locomotor types in Neotropical sigmodontine rodents. J. Anat. 224: 469–481.10.1111/joa.12152Suche in Google Scholar PubMed PubMed Central
Cerboncini, R.A.S., T.B. Zanata, W.L. da Cunha, A.M. Rorato, A.S. Calefi, M.R. Sbeghen, R. Macagnan, K.C. Abreu, M.A. Ono and F.C. Passos. 2014. Distribution extension of Abrawayaomys ruschii Cunha and Cruz, 1979 (Rodentia: Cricetidae) with the first records in the state of Paraná, southern Brazil. Check List 10: 660–662.10.15560/10.3.660Suche in Google Scholar
Costa, L.P., S.E. Pavan, Y.L.R. Leite and V. Fagundes. 2007. A new species of Juliomys (Mammalia: Rodentia: Cricetidae) from the Atlantic forest of southeastern Brazil. Zootaxa 1463: 21–37.10.11646/zootaxa.1463.1.3Suche in Google Scholar
Cunha, F.L.S. and J.F. Cruz. 1979. Novo gênero de Cricetidae (Rodentia) de Castelo, Espírito Santo, Brasil. Bol. Mus. Biol. Prof. Mello Leitão, Ser. Zool. 96: 1–5.Suche in Google Scholar
Finotti, R., A. Cunha and R. Cerqueira. 2003. Alimentação e anatomia microscópica do trato digestivo de Abrawayaomys ruschii. 2 Congresso Brasileiro de Mastozoologia, Resumos, p. 265.Suche in Google Scholar
Furman, D.P. 1972. Laelapid mites (Laelapidae: Laelapinae) of Venezuela. Brigham Young Univ. Sci. Bull. Biol. Ser. 27: 1–58.Suche in Google Scholar
Galindo-Leal, C. and I. Gusmão Câmara, eds. 2003. The Atlantic Forest of South America: biodiversity status, threats and outlook. Center for Applied Biodiversity Science at Conservation International, Washington, DC. pp. 488.Suche in Google Scholar
Gil, G. and J.M. Lobo. 2012. El uso de modelos predictivos de distribución para el diseño de muestreos de especies poco conocidas. Mast. Neotrop. 19: 47–62.Suche in Google Scholar
Gonçalves, P.R. 2006. Diversificação dos roedores sigmodontíneos em formações alto – montanas da Mata Atlântica. PhD dissertation. Universidade Federal do Rio de Janeiro, Museu Nacional, Rio de Janeiro, Brazil. pp. 277.Suche in Google Scholar
Gonçalves, P.R. and J.A. Oliveira. 2014. An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species. Zootaxa 3760: 1–38.10.11646/zootaxa.3760.1.1Suche in Google Scholar PubMed
Hershkovitz, P. 1990. Mice of the Akodon boliviensis size class (Sigmodontinae, Cricetidae), with the description of two species from Brazil. Field. Zool. n.s. 57: 1–35.Suche in Google Scholar
Hershkovitz, P. 1993. A new Central Brazilian genus and species of sigmodontine rodent (Sigmodontinae) transitional between akodonts and oryzomyines, with a discussion of muroid molar morphology and evolution. Field. Zool. n.s. 75: 1–18.10.5962/bhl.title.3370Suche in Google Scholar
Hopkins, G.H.E. and M. Rothschild. 1966. An illustrated catalogue of the Rothschild Collection of fleas (Siphonaptera) in the British Museum (Natural History). Volume IV. Hystricopsyllidae. British Museum of Natural History, London. pp. 549.Suche in Google Scholar
Izquierdo, A.E. and M. Srur. 2009. Diversidad de tipos de vegetación y ambientes en la Reserva de Vida Silvestre Urugua-í. Informe Técnico, Fundación Vida Silvestre Argentina, Buenos Aires. pp. 14.Suche in Google Scholar
Lareschi, M. and P.M. Linardi. 2005. New data on the morphology of Polygenis (Polygenis) rimatus (Jordan) (Siphonaptera: Rhopalopsyllidae). Neotrop. Entomol. 34: 121–125.10.1590/S1519-566X2005000100017Suche in Google Scholar
Linardi, P.M. and L.R. Guimarães. 2000. Sifonápteros do Brasil. MZUSP, FAPESP, São Paulo, Ed. pp. 291.Suche in Google Scholar
Massoia, E., J.C. Chebez and S. Heinonen Fortabat. 1991. Nuevos o poco conocidos cráneos de mamíferos vivientes – 3 – Abrawayaomys ruschi de la provincia de Misiones, República Argentina. Bol. Cient. Asoc. Prot. Nat. 19: 39–40.Suche in Google Scholar
Pacheco, V. 2003. Phylogenetic analyses of the Thomasomyini (Muroidea: Sigmodontinae) based on morphological data. PhD dissertation. The City University New York. pp. 398.Suche in Google Scholar
Pardiñas, U.F.J., P. Teta and G. D’Elía. 2009. Taxonomy and distribution of Abrawayaomys (Rodentia: Cricetidae), an Atlantic forest endemic with the description of a new species. Zootaxa 2128: 39–60.10.11646/zootaxa.2128.1.2Suche in Google Scholar
Pardiñas, U.F.J., P. Teta and G. D’Elía. 2015. Genus Abrawayaomys F. Cunha and Cruz, 1979. In: (J.L. Patton, U.F.J. Pardiñas and G. D’Elía, eds.) Mammals of South America. Vol. 2, Rodents. University of Chicago Press, Chicago, IL. pp. 73–75.10.7208/chicago/9780226169606.001.0001Suche in Google Scholar
Passamani, M., R.A.S. Cerboncini and J.E. Oliveira. 2011. Distribution extension of Phaenomys ferrugineus (Thomas, 1894), and new data on Abrawayaomys ruschii Cunha and Cruz, 1979 and Rhagomys rufescens (Thomas, 1886), three rare species of rodents (Rodentia: Cricetidae) in Minas Gerais, Brazil. Check List 7: 827–831.10.15560/7.6.827Suche in Google Scholar
Pavan, S.E. and Y.L.R. Leite. 2011. Morphological diagnosis and geographic distribution of Atlantic Forest red-rumped mice of the genus Juliomys (Rodentia: Sigmodontinae). Zoologia (Brazil) 28: 663–672.10.1590/S1984-46702011000500015Suche in Google Scholar
Pereira, L.G., L. Geise, A.A. Cunha and R. Cerqueira. 2008. Abrawayaomys ruschii Cunha & Cruz, 1979 (Rodentia, Cricetidae) no estado do Rio de Janeiro, Brasil. Pap. Av. Zool., Mus. Zool. Univ. São Paulo 48: 33–40.10.1590/S0031-10492008000500001Suche in Google Scholar
Steppan, S.J. 1995. Revision of the tribe Phyllotini (Rodentia: Sigmodontinae), with a phylogenetic hypothesis for the Sigmodontinae. Fiel. Zool. n.s. 80: 1–112.Suche in Google Scholar
Ventura, K., M.J. Silva, L. Geise, Y.L.R. Leite, U.F.J. Pardiñas, Y. Yonenaga-Yassuda and G. D’Elía. 2013. The phylogenetic position of the enigmatic Atlantic forest – endemic spiny mouse Abrawayaomys (Rodentia: Sigmodontinae). Zool. Stud. 52: 55.10.1186/1810-522X-52-55Suche in Google Scholar
Voss, R.S. 1991. An introduction to the Neotropical muroid rodent genus Zygodontomys. Bull. Am. Mus. Nat. Hist. 210: 1–113.Suche in Google Scholar
Supplemental Material
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Artikel in diesem Heft
- Frontmatter
- Original Studies
- Towards a uniform nomenclature for ground squirrels: the status of the Holarctic chipmunks
- Diversity and richness of small mammals at a well-conserved site of The Yungas in Jujuy Province, Argentina
- Is the knowledge of bat distribution in the Atlantic Rainforest sufficient? Comments about new findings and a case study in the Paraná State coastal area, Brazil
- Tree selection by roosting bats in a European temperate lowland sub-Atlantic forest
- Trophic and spatio-temporal niche of the crab-eating fox, Cerdocyon thous (Linnaeus, 1766) (Carnivora: Canidae), in a remnant of the Caatinga in northeastern Brazil
- Diet of brown hare (Lepus europaeus) and food availability in High Andean mountains (Mendoza, Argentina)
- Knowledge, management and optimization: the use of live traps in control of non-native squirrels
- Molecular evidence supports recent anthropogenic introduction of the Algerian hedgehog Atelerix algirus in Spain, Balearic and Canary islands from North Africa
- Short Notes
- Aquatic locomotion of the terrestrial opossum Didelphis aurita (Didelphimorphia, Didelphidae) using undulatory swimming mode
- Rediscovery and range extension of the black-shouldered opossum Caluromysiops irrupta Sanborn, 1951 (Didelphimorphia, Didelphidae) in Brazil
- Wolf diet in an agricultural landscape of north-eastern Turkey
- Dense sampling provides a reevaluation of the southern geographic distribution of the cavies Galea and Microcavia (Rodentia)
- New data on Abrawayaomys chebezi (Rodentia, Cricetidae), a poorly known South American sylvan rodent
- Opportunistic feeding by the little yellow-shouldered bat Sturnira lilium (Phyllostomidae, Stenodermatinae) in northern Guatemala: a comparative approach
- Two new bat species for Swaziland and a revised list for the country
Artikel in diesem Heft
- Frontmatter
- Original Studies
- Towards a uniform nomenclature for ground squirrels: the status of the Holarctic chipmunks
- Diversity and richness of small mammals at a well-conserved site of The Yungas in Jujuy Province, Argentina
- Is the knowledge of bat distribution in the Atlantic Rainforest sufficient? Comments about new findings and a case study in the Paraná State coastal area, Brazil
- Tree selection by roosting bats in a European temperate lowland sub-Atlantic forest
- Trophic and spatio-temporal niche of the crab-eating fox, Cerdocyon thous (Linnaeus, 1766) (Carnivora: Canidae), in a remnant of the Caatinga in northeastern Brazil
- Diet of brown hare (Lepus europaeus) and food availability in High Andean mountains (Mendoza, Argentina)
- Knowledge, management and optimization: the use of live traps in control of non-native squirrels
- Molecular evidence supports recent anthropogenic introduction of the Algerian hedgehog Atelerix algirus in Spain, Balearic and Canary islands from North Africa
- Short Notes
- Aquatic locomotion of the terrestrial opossum Didelphis aurita (Didelphimorphia, Didelphidae) using undulatory swimming mode
- Rediscovery and range extension of the black-shouldered opossum Caluromysiops irrupta Sanborn, 1951 (Didelphimorphia, Didelphidae) in Brazil
- Wolf diet in an agricultural landscape of north-eastern Turkey
- Dense sampling provides a reevaluation of the southern geographic distribution of the cavies Galea and Microcavia (Rodentia)
- New data on Abrawayaomys chebezi (Rodentia, Cricetidae), a poorly known South American sylvan rodent
- Opportunistic feeding by the little yellow-shouldered bat Sturnira lilium (Phyllostomidae, Stenodermatinae) in northern Guatemala: a comparative approach
- Two new bat species for Swaziland and a revised list for the country
