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Environmental drivers of long-term variations in the abundance of the red hocicudo mouse (Oxymycterus rufus) in Pampas agroecosystems

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Integrative Zoology 2024年第1期19卷 37-51页

作者： Laura Mariel CALFAYAN Regino CAVIA jimena fraschina Juan Santiago GUIDOBONO Irene Laura GOROSITO María BUSCH Laboratorio de Ecología de Poblaciones Departamento de EcologíaGenética y EvoluciónFacultad de Ciencias Exactas y NaturalesUniversidad de Buenos Aires and Instituto de EcologíaGenética y Evolución de Buenos Aires(IEGEBA)Buenos AiresArgentina

During the 20th century,there has been an ongoing agricultural expansion and global warming,two of the main determinants influencing biodiversity changes in *** red hocicudo mouse(Oxymycterus rufus)inhabits subtropical grasslands and riparian habitats and has increased its abundance in recent years in central Argentina *** paper describes the long-term temporal changes in *** abundance in Exaltación de la Cruz department,Buenos Aires province,Argentina,in relation to weatherfluctuations and landscape features,as well as analyzes the spatio-temporal structure of captures of *** used generalized liner models,semi-variograms,the Mantel test,and autocorrelation functions for the analysis of rodent data obtained from trappings conducted between 1984 and *** showed an increase in abundance across the years of study,with its distribution depending on landscape features,such as habitat types and the distance *** rates showed a spatio-temporal aggregation,suggesting expansion from previously occupied *** was more abundant at lower minimum temperatures in summer,higher precipitation in spring and summer,and lower precip-itations in *** conditions affected *** abundance,but there was local variation that differed from global patterns of climate change.

关键词： agroecosystems climate change linear habitats Oxymycterus rufus rodent

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Habitat use and demography of Mus musculus in a rural landscape of Argentina

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Integrative Zoology 2013年第1期8卷 18-29页

作者： Vanina A.LEÓN jimena fraschina Juan S.GUIDOBONO Maria BUSCH Department of Ecology Genetics and EvolutionUniversity of Buenos AiresBuenos AiresArgentina

The main goal of the paper was to determine the habitat distribution of the house mouse(Mus musculus)within a rural landscape of Buenos Aires province,*** also studied the seasonal variation in abundance and reproductive *** habitats studied were poultry farms,human houses in a small village,cropfields,pastures,cropfield and pasture edges,riparian habitats(streams),railway embankments and *** captured 817 *** and 690 individuals of 5 native rodent *** was captured in poultry farms,houses,riparian habitats,cropfield and borders,but it showed a significantly higher abundance in poultry farms compared to the other *** presence outside poultry farms was significantly related to the distance to streams and poultry *** mean trapping success index of *** did not show significant variations between periods,but the proportion of active males was significantly higher in the spring-summer period than in the autumn-winter *** captures of *** in cropfields,borders and riparian habitats occurred in the spring-summer *** capture of *** in many types of habitats suggests that it can disperse outside poultry farms,and streams may be used as corridors.

关键词： abundance variation habitat distribution house mice reproductive activity

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