Night-day speed ratio of elephants as indicator of poaching levels
Ecological Indicators(2018)
摘要
•Elephants alter their travel speed to avoid encountering poachers.•Elephants travel more at night than during the day in areas with higher poaching levels.•The night-day speed ratio is an effective metric for measuring the change in movement rate.•Application of night-day speed ratio can complement field based monitoring.
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关键词
African elephant,Poaching,Risk,GPS tracking,Night-day speed ratio
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