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Abstract:

Life history characteristics are influenced by both biotic and abiotic factors of the environment. The aim of this study was to compare the life history strategies of Rattus norvegicus populations in urban and rural habitats in central-east Argentina. Live trapping of rodents was conducted over 1 year in a shanty town and for 2 years on poultry farms. Abundance did not differ between habitats. Age structure was similar in both habitats but varied among seasons. Rats on poultry farms had better body condition, produced larger litters and had a higher reproductive potential than rats from the shanty town. These differences may be due to differences in habitat favourability or in selection pressures between the two habitats. Our results show that rats may adopt different life history strategies according to habitat conditions.

Registro:

Documento: Artículo
Título:Differences in population parameters of Rattus norvegicus in urban and rural habitats of central Argentina
Autor:Villafañe, I.E.G.; Cavia, R.; Vadell, M.V.; Suárez, O.V.; Busch, M.
Filiación:Departamento de Ecología, Genética y Evolución, IEGEBA, Universidad de Buenos Aires, Cdad. Aut ó noma de Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
Palabras clave:Life history; Rats; Reproduction; Rural; Urban; abundance; age structure; body condition; environmental factor; habitat selection; life history trait; livestock farming; natural selection; population ecology; reproduction; rodent; rural area; trapping; urban area; Argentina; Rattus; Rattus norvegicus; Rodentia
Año:2013
Volumen:77
Número:2
Página de inicio:187
Página de fin:193
DOI: http://dx.doi.org/10.1515/mammalia-2012-0075
Título revista:Mammalia
Título revista abreviado:Mammalia
ISSN:00251461
CODEN:MAMLA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00251461_v77_n2_p187_Villafane

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Citas:

---------- APA ----------
Villafañe, I.E.G., Cavia, R., Vadell, M.V., Suárez, O.V. & Busch, M. (2013) . Differences in population parameters of Rattus norvegicus in urban and rural habitats of central Argentina. Mammalia, 77(2), 187-193.
http://dx.doi.org/10.1515/mammalia-2012-0075
---------- CHICAGO ----------
Villafañe, I.E.G., Cavia, R., Vadell, M.V., Suárez, O.V., Busch, M. "Differences in population parameters of Rattus norvegicus in urban and rural habitats of central Argentina" . Mammalia 77, no. 2 (2013) : 187-193.
http://dx.doi.org/10.1515/mammalia-2012-0075
---------- MLA ----------
Villafañe, I.E.G., Cavia, R., Vadell, M.V., Suárez, O.V., Busch, M. "Differences in population parameters of Rattus norvegicus in urban and rural habitats of central Argentina" . Mammalia, vol. 77, no. 2, 2013, pp. 187-193.
http://dx.doi.org/10.1515/mammalia-2012-0075
---------- VANCOUVER ----------
Villafañe, I.E.G., Cavia, R., Vadell, M.V., Suárez, O.V., Busch, M. Differences in population parameters of Rattus norvegicus in urban and rural habitats of central Argentina. Mammalia. 2013;77(2):187-193.
http://dx.doi.org/10.1515/mammalia-2012-0075