Utilizing Thermal Imaging Drones to Investigate Sleeping Site Selection in an Arboreal Primate DOI Creative Commons
Eva Gazagne,

Chiara Goldblatt,

Loc Nguyen

et al.

Current Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 4, 2025

Abstract Sleeping site selection is essential for understanding primate behavioural ecology and survival. Identifying where species sleep helps determine priority areas critical resources targeted conservation efforts. However, observing sleeping sites at night challenging, especially sensitive to human disturbance. Thermal infrared imaging (TIR) with drones increasingly used detecting counting primates, yet it has not been utilized investigate ecological strategies. This study investigates the of Critically Endangered black-shanked douc langur (Pygathrix nigripes) in Cát Tiên National Park, Vietnam. Our aim assess feasibility using a TIR drone test strategies non-nesting specifically examining hypotheses related predation avoidance food proximity. Between January April 2023, we conducted 120 flights along 22 transects (~1-km long) identified 114 via thermal imaging. We established 116 forest structure plots 29 non-selected 65 within sites. observations reveal that langurs selected tall large trees may provide protection against predators. Additionally, they increased access food, such as Afzelia xylocarpa, which serves preferred source during dry season. These results highlight effective use studying minimal Besides offering valuable insights into habitat conservation, hold great promise non-invasive long-term monitoring large-bodied arboreal species.

Language: Английский

Utilizing Thermal Imaging Drones to Investigate Sleeping Site Selection in an Arboreal Primate DOI Creative Commons
Eva Gazagne,

Chiara Goldblatt,

Loc Nguyen

et al.

Current Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 4, 2025

Abstract Sleeping site selection is essential for understanding primate behavioural ecology and survival. Identifying where species sleep helps determine priority areas critical resources targeted conservation efforts. However, observing sleeping sites at night challenging, especially sensitive to human disturbance. Thermal infrared imaging (TIR) with drones increasingly used detecting counting primates, yet it has not been utilized investigate ecological strategies. This study investigates the of Critically Endangered black-shanked douc langur (Pygathrix nigripes) in Cát Tiên National Park, Vietnam. Our aim assess feasibility using a TIR drone test strategies non-nesting specifically examining hypotheses related predation avoidance food proximity. Between January April 2023, we conducted 120 flights along 22 transects (~1-km long) identified 114 via thermal imaging. We established 116 forest structure plots 29 non-selected 65 within sites. observations reveal that langurs selected tall large trees may provide protection against predators. Additionally, they increased access food, such as Afzelia xylocarpa, which serves preferred source during dry season. These results highlight effective use studying minimal Besides offering valuable insights into habitat conservation, hold great promise non-invasive long-term monitoring large-bodied arboreal species.

Language: Английский

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