New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina

We provided new data on morphology and natural history of the rare sigmodontine rodent Deltamys kempi. Field work was conducted in Reserva Costanera Sur, Buenos Aires, central-eastern Argentina during two consecutive years. The glans penis of D. kempi is short and stocky and sub-cylindrical in appea...

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Autores principales:	Cueto, Gerardo Ruben, Suarez, Olga Virginia
Publicado:	2007
Materias:	Akodontini Ecology Kemp's grass mouse Rodentia Acari Akodon Androlaelaps Arthropoda Baculum Cortaderia selloana Cricetidae Deltamys Deltamys kempi Glans Hexapoda Laelaps Polygenis Sigmodontinae
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11755326_v_n1665_p4351_Teta http://hdl.handle.net/20.500.12110/paper_11755326_v_n1665_p4351_Teta
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_11755326_v_n1665_p4351_Teta
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spelling	paper:paper_11755326_v_n1665_p4351_Teta2023-06-08T16:09:40Z New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina Cueto, Gerardo Ruben Suarez, Olga Virginia Akodontini Ecology Kemp's grass mouse Rodentia Acari Akodon Androlaelaps Arthropoda Baculum Cortaderia selloana Cricetidae Deltamys Deltamys kempi Glans Hexapoda Laelaps Polygenis Rodentia Sigmodontinae We provided new data on morphology and natural history of the rare sigmodontine rodent Deltamys kempi. Field work was conducted in Reserva Costanera Sur, Buenos Aires, central-eastern Argentina during two consecutive years. The glans penis of D. kempi is short and stocky and sub-cylindrical in appearance; the stomach is unilocular-hemiglandular; the baculum has a well developed cartilaginous portion, with two lateral digits and a central one; gall bladder is present. We also describe for the first time the soft palate and the manus and pes morphology. Soft palate, stomach, glans penis, manus and pes morphology of Deltamys is similar to Akodon, its hypothesized sister taxon. D. kempi was more frequently captured in relatively pure stands of the tall grass Cortaderia selloana. According to the available records in Argentina, D. kempi occupies preferably grassy marshes and dense gramineous patches in gallery forest. Reproductive season seems to start at the late winter-early spring and to last until the end of summer-early autumn. Stomach contents of four individuals had mainly insects and insect larvae. Ectoparasites found in D. kempi included the Acari Androlaelaps fahrenholzi, A. aff. A. rotundus and Laelaps paulistanensis, and the Siphonaptera Polygenis sp. Copyright © 2007 Magnolia Press. Fil:Cueto, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Suárez, O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11755326_v_n1665_p4351_Teta http://hdl.handle.net/20.500.12110/paper_11755326_v_n1665_p4351_Teta
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Akodontini Ecology Kemp's grass mouse Rodentia Acari Akodon Androlaelaps Arthropoda Baculum Cortaderia selloana Cricetidae Deltamys Deltamys kempi Glans Hexapoda Laelaps Polygenis Rodentia Sigmodontinae
spellingShingle	Akodontini Ecology Kemp's grass mouse Rodentia Acari Akodon Androlaelaps Arthropoda Baculum Cortaderia selloana Cricetidae Deltamys Deltamys kempi Glans Hexapoda Laelaps Polygenis Rodentia Sigmodontinae Cueto, Gerardo Ruben Suarez, Olga Virginia New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina
topic_facet	Akodontini Ecology Kemp's grass mouse Rodentia Acari Akodon Androlaelaps Arthropoda Baculum Cortaderia selloana Cricetidae Deltamys Deltamys kempi Glans Hexapoda Laelaps Polygenis Rodentia Sigmodontinae
description	We provided new data on morphology and natural history of the rare sigmodontine rodent Deltamys kempi. Field work was conducted in Reserva Costanera Sur, Buenos Aires, central-eastern Argentina during two consecutive years. The glans penis of D. kempi is short and stocky and sub-cylindrical in appearance; the stomach is unilocular-hemiglandular; the baculum has a well developed cartilaginous portion, with two lateral digits and a central one; gall bladder is present. We also describe for the first time the soft palate and the manus and pes morphology. Soft palate, stomach, glans penis, manus and pes morphology of Deltamys is similar to Akodon, its hypothesized sister taxon. D. kempi was more frequently captured in relatively pure stands of the tall grass Cortaderia selloana. According to the available records in Argentina, D. kempi occupies preferably grassy marshes and dense gramineous patches in gallery forest. Reproductive season seems to start at the late winter-early spring and to last until the end of summer-early autumn. Stomach contents of four individuals had mainly insects and insect larvae. Ectoparasites found in D. kempi included the Acari Androlaelaps fahrenholzi, A. aff. A. rotundus and Laelaps paulistanensis, and the Siphonaptera Polygenis sp. Copyright © 2007 Magnolia Press.
author	Cueto, Gerardo Ruben Suarez, Olga Virginia
author_facet	Cueto, Gerardo Ruben Suarez, Olga Virginia
author_sort	Cueto, Gerardo Ruben
title	New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina
title_short	New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina
title_full	New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina
title_fullStr	New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina
title_full_unstemmed	New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina
title_sort	new data on morphology and natural history of deltamys kempi thomas, 1919 (cricetidae, sigmodontinae) from central-eastern argentina
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11755326_v_n1665_p4351_Teta http://hdl.handle.net/20.500.12110/paper_11755326_v_n1665_p4351_Teta
work_keys_str_mv	AT cuetogerardoruben newdataonmorphologyandnaturalhistoryofdeltamyskempithomas1919cricetidaesigmodontinaefromcentraleasternargentina AT suarezolgavirginia newdataonmorphologyandnaturalhistoryofdeltamyskempithomas1919cricetidaesigmodontinaefromcentraleasternargentina
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New data on morphology and natural history of Deltamys kempi Thomas, 1919 (Cricetidae, Sigmodontinae) from central-eastern Argentina

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