Demographic dynamics of Akodon azarae (Cricetidae: Sigmodontinae) in linear habitats of agricultural landscapes of central Argentina |
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| Authors: | María Daniela Gomez Vanesa Serafini José Coda José Priotto |
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| Institution: | 1. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina;2. Departamento de Ciencias Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, Argentina;3. Departamento de Ciencias Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Córdoba, Argentina |
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| Abstract: | Linear habitats are capable of providing essential resources for small mammals within agroecosystems. We analyzed demographic parameters of Akodon azarae in a linear habitat of central Argentina. We used capture-mark-recapture models to determine temporal variations in survival, recruitment and population growth rate. The effects of temperature, rainfall and vegetation cover as well as of population abundances on the mentioned parameters were assessed in a 10-year study. Survival and growth rate showed seasonal variation, which was greater than the interannual variability observed. Temperature affected only recruitment. Linear habitats would provide resources for long term survival and reproduction of A. azarae. |
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| Keywords: | CMR population growth rate recruitment survival temporal variation |
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