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- W2273283092 abstract "Abstract We describe the behavior in captivity of the dusky shrew-opossum Caenolestes fuliginosus from 17 specimens captured at Finca La Martinica (Colombia), which were kept alive in plastic terraria for different periods of time (between 1 and 12 consecutive days). We found that C. fuliginosus can climb and jump well and uses its nonprehensile tail as a support when climbing. Feeding observations showed a preference towards an animalivorous diet, which included moths/butterflies (Insecta, Lepidoptera), stick-insects (Insecta, Phasmatoidea), flatworms (Platyhelminthes, Turbellaria), earthworms (Annelida, Oligochaeta), frogs (Amphibia, e.g., Pristimantis sp.), and dead rodents (Rodentia, Sigmodontinae, e.g., Microryzomys sp., Thomasomys sp.). Individuals were active throughout the day and night, with no indication of daily torpor. Our observations showed C. fuliginosus is not aggressive towards congeners and often aggregates during rest, especially when several individuals are placed together. Unlike other New World marsupials, C. fuliginosus showed nonagonistic group feeding behavior when consuming carcasses. Stereotyped behavior patterns (e.g., grooming) were not frequently observed. Our work provides comparative information for further studies on caenolestids and other New World marsupials. En este trabajo describimos el comportamiento en cautiverio del ratón Runcho, Caenolestes fuliginosus, a partir de la observación directa de 17 individuos capturados en Finca La Martinica (Colombia), que fueron mantenidos en terrarios plásticos por diferentes períodos de tiempo (entre 1 y 12 días consecutivos). Observamos que C. fuliginosus puede trepar y saltar bien, usando su cola no prensil como soporte al trepar. Los individuos mostraron preferencias alimenticias hacia una dieta animalívora que incluyó: polillas/mariposas (Insecta, Lepidoptera), insectos palo (Insecta, Phasmatoidea), gusanos planos de vida libre (Platyhelminthes, Turbellaria), lombrices (Annelida, Oligochaeta), ranas/sapos (Amphibia, e.g., Pristimantis sp.) y roedores muertos (Rodentia, Sigmodontinae, e.g., Microryzomys sp., Thomasomys sp.). Observamos actividad durante todo el día y la noche, sin preferencias, y no observamos torpor en ningún individuo. Los individuos no mostraron comportamiento agresivo hacia sus congéneres y, con frecuencia, se juntaron para descansar unos sobre otros. A diferencia de otros marsupiales del nuevo mundo, C. fuliginosus no mostró comportamiento agonístico cuando se alimenta de cadáveres. Patrones estereotipados de comportamiento (e.g., limpieza) no fueron frecuentemente observados. Nuestro trabajo aporta información comparativa para futuros estudios sobre el comportamiento de otros cenoléstidos y marsupiales del nuevo mundo." @default.
- W2273283092 created "2016-06-24" @default.
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- W2273283092 date "2016-01-05" @default.
- W2273283092 modified "2023-09-28" @default.
- W2273283092 title "Observations on the behavior of Caenolestes fuliginosus (Tomes, 1863) (Marsupialia, Paucituberculata, Caenolestidae) in captivity" @default.
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- W2273283092 doi "https://doi.org/10.1093/jmammal/gyv203" @default.
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