Revisiting Optimal Foraging Theory (OFT) in a Changing Amazon: Implications for Conservation and Management
Revisiting Optimal Foraging Theory (OFT) in a Changing Amazon: Implications for Conservation and Management
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DOI：
10.1007/s10745-022-00320-w
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发表时间：
2022-03-25
期刊：
影响因子：
2
通讯作者：
Gilmore，Michael P.
中科院分区：
文献类型：
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作者：
Griffiths，Brian M.;Bowler，Mark;Gilmore，Michael P.
猎人的决策影响猎物的选择，是了解狩猎对生物多样性影响的关键。最佳觅食理论（OFT）通常用于描述自给猎人的决策和猎物选择。我们研究了亚马逊土著社区猎人的行为和猎物的使用情况，并在 OFT 框架下使用自由列表和广义线性混合效应模型来评估为了经济利益和生存而狩猎的个人的决策。我们发现，猎物选择通常遵循 OFT，并受到猎人技能、斑块选择和遇到猎物特征的影响。猎人更喜欢帕卡 (Cuniculus paca)、项圈西貒 (Pecari tajacu) 和美洲鹿 (Mazama americana)，仅部分偏好貘 (Tapirus terrestris) 和大型灵长类动物，这可能是由于市场准入和价格等经济因素的影响，这与 OFT 的预测相反。
Hunter decision-making influences prey selection and is key to understanding the impacts of hunting on biodiversity. Optimal foraging theory (OFT) is often used to describe the decision-making and prey selection of subsistence hunters. We examined the behavior and game meat use of hunters in an indigenous Amazonian community and used free listing and generalized linear mixed-effects models under the framework of OFT to assess the decision-making of individuals who hunt for economic gain and subsistence. We found that prey selection generally followed OFT, and was influenced by hunters’ skills, patch choice, and characteristics of the prey encountered. Hunters preferred paca (Cuniculus paca), collared peccary (Pecari tajacu), and brocket deer (Mazama americana), and only partially preferred tapir (Tapirus terrestris) and large-bodied primates likely due to economic influences such as access to markets and prices, contrary to OFT predictions.