Costa Michel Iskin da Silveira, Meza Magno Enrique Mendoza
Laboratório Nacional de Computação Científica, Avenida Getúlio Vargas 333, Quitandinha, Petrópolis, Rio de Janeiro 25651-070, Brazil.
Math Med Biol. 2006 Mar;23(1):63-75. doi: 10.1093/imammb/dql005. Epub 2006 Mar 22.
Yodzis discusses how the differing biological assumptions as to predator interference on the forms of predator-prey models can influence the conclusion to be drawn from multispecies population models with respect to the way predators affect human harvesting of natural populations. To deal with these intricacies related to biological assumptions and fishery management policies, a specific management strategy called threshold policy is proposed. It is shown that its application to the same models analysed by Yodzis leaves the behaviour of the managed population less sensitive to the underlying biological features and assumptions as well as parameter uncertainties. The same management strategy is proposed for the same models in the context of the timely issue of predator culling in fisheries. Interestingly, the fishery yield for each model is exactly the same despite their different biological assumptions.
约齐斯探讨了关于捕食者干扰对捕食者 - 猎物模型形式的不同生物学假设，如何能够影响从多物种种群模型中得出的关于捕食者影响人类对自然种群捕捞方式的结论。为了处理与生物学假设和渔业管理政策相关的这些复杂问题，提出了一种名为阈值政策的特定管理策略。结果表明，将其应用于约齐斯所分析的相同模型时，受管理种群的行为对潜在的生物学特征、假设以及参数不确定性的敏感度降低。在渔业中及时进行捕食者捕杀的背景下，针对相同模型也提出了同样的管理策略。有趣的是，尽管各模型的生物学假设不同，但每个模型的渔业产量完全相同。
