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<p>Human disturbances influence mammalian ecology, affecting both space use and activity patterns. We evaluated how anthropogenic factors shape these variables in the mara <i>Dolichotis patagonum</i>, an endemic and vulnerable species in Argentina. The study was conducted in Ischigualasto Provincial Park (San Juan) and its surrounding area using 89 camera traps deployed between 2019 and 2021. Occupancy models were used to assess space use, while overlap estimates were applied to compare activity patterns. The models indicated that maras more frequently used areas with high domestic species presence and proximity to National Road 150. In contrast, human settlements and the tourist circuit showed no significant effect. Regarding activity, the species maintained a diurnal pattern near settlements but extended activity to 24&#xa0;h near the road, possibly owing to reduced night-time traffic. Although temporal overlap with domestic animals was high, differences in activity peaks were detected. These findings suggest that maras exhibit behavioural flexibility in response to human disturbances, which may enhance persistence in modified environments, although associated risks such as collisions and predation remain.</p>

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Behavioural responses of an Argentinian endemic mammal to different anthropogenic disturbances: a spatio-temporal approach

  • 期刊论文

  • 发表日期：

    2026年6月19日

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  • Yamila Ontiveros,
  • Elín A. Avellá Machado,
  • Claudia M. Campos,
  • Stella M. Giannoni

摘要

Human disturbances influence mammalian ecology, affecting both space use and activity patterns. We evaluated how anthropogenic factors shape these variables in the mara Dolichotis patagonum, an endemic and vulnerable species in Argentina. The study was conducted in Ischigualasto Provincial Park (San Juan) and its surrounding area using 89 camera traps deployed between 2019 and 2021. Occupancy models were used to assess space use, while overlap estimates were applied to compare activity patterns. The models indicated that maras more frequently used areas with high domestic species presence and proximity to National Road 150. In contrast, human settlements and the tourist circuit showed no significant effect. Regarding activity, the species maintained a diurnal pattern near settlements but extended activity to 24 h near the road, possibly owing to reduced night-time traffic. Although temporal overlap with domestic animals was high, differences in activity peaks were detected. These findings suggest that maras exhibit behavioural flexibility in response to human disturbances, which may enhance persistence in modified environments, although associated risks such as collisions and predation remain.