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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Testing the efficacy of a chilli-tobacco rope fence as a deterrent against crop-raiding elephants
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Testing the efficacy of a chilli-tobacco rope fence as a deterrent against crop-raiding elephants

机译：测试辣椒烟丝围栏作为对抗农作物大象的功效

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Chilli-based repellents have shown promise as deterrents against crop-raiding elephants in Africa. We experimented with ropes coated with chilli-based repellent as a cheap alternative to existing elephant cropraid deterrent methods in India. Three locations (Buxa Tiger Reserve, Wyanad Wildlife Sanctuary and Hosur Forest Division) representing varying rainfall regimes from high to low, and with histories of intense elephant-agriculture conflict, were selected for the experiments that were conducted over 2-3 months during the pre-harvest period of the kharif season in late 2006. Chilli and tobacco powder mixed with waste oil was applied to ropes strung around agricultural fields of 1.4-5.5 km perimeter and elephant approaches were monitored. Elephants breached the rope fences a few times at all three study sites. Female-led herds were far more deterred (practically 100% reduction) than were solitary males (c. 50%) by the chilli-tobacco rope. Efficacy of this method as a deterrent was significantly better in the low-rainfall regime relative to medium and high-rainfall regimes. The initial promising results present a case for more rigorous experimentation; these would help determine if the elephants avoiding the rope are responding physiologically to the chilli-tobacco smell or merely reacting cautiously to a novel substance in their environment.
机译：辣椒基驱蚊剂已显示出对阻止非洲农作物象的威慑作用。我们对涂有辣椒基驱虫剂的绳索进行了实验，以替代印度现有的大象耕作威慑方法。在选拔赛前2-3个月进行的实验中，选择了三个地点（Buxa老虎保护区，Wyanad野生动物保护区和Hosur森林分区），分别代表了从高到低的不同降雨状态，并具有激烈的大象农业冲突历史。 -在2006年底的哈里夫季收割期。将辣椒和烟草粉与废油混合后，用在1.4-5.5 km周长的农田周围的绳索上，并监测了大象的进近。大象在所有三个研究地点都几次破坏了绳索围栏。由女性主导的畜群受辣椒烟丝的阻吓作用（减少约100％）远比由单独的男性（约50％）阻止。与中雨天和高雨天相比，低雨天这种方法作为威慑剂的功效明显更好。最初的有希望的结果为进一步严格的实验提供了条件。这些将有助于确定避开绳索的大象是否对辣椒味有生理反应，或者只是对环境中的新物质做出谨慎反应。

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