Abstract Across the tropics, millions of rural families rely on non-timber forest products for protein, subsistence, and other financial or cultural uses. Often, communities exploit biotically dispersed trees and their mammalian or avian seed disperser. Empirical findings have indicated that many plant and animal resources are overexploited, presenting challenges for biodiversity conservation and sustainable rural livelihoods. However, there has been limited research investigating the impacts of harvest that targets both seed dispersers and zoochoric trees. We formulated a discrete-time model for interacting seed dispersers and plants under harvest. We found that the more dependent species will dictate the sustainable threshold level of harvest, and that higher levels of dependence could drive the species pair to local extinction. We illustrated the application of sensitivity analysis to our modeling framework in order to facilitate future analyses and applications using this approach.

中文翻译：

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模拟野生收获对植物-传播者共生关系的影响

摘要 在热带地区，数以百万计的农村家庭依赖非木材林产品来获取蛋白质、维持生计和其他经济或文化用途。通常，社区利用生物传播的树木及其哺乳动物或鸟类种子传播者。实证结果表明，许多动植物资源被过度开发，给生物多样性保护和可持续农村生计带来挑战。然而，针对种子传播者和动物植物树的收获影响的研究非常有限。我们制定了一个离散时间模型，用于相互作用的种子分散器和收获下的植物。我们发现，依赖程度越高的物种将决定可持续的收获阈值，而更高的依赖程度可能会导致该物种对在当地灭绝。