Combining Tactics to Exploit Allee Effects for Eradication of Alien Insect Populations
Combining Tactics to Exploit Allee Effects for Eradication of Alien Insect Populations
复制标题
结合策略利用 Allee 效应消灭外来昆虫种群
DOI：
10.1603/ec11293
复制
发表时间：
2012
影响因子：
1.9
通讯作者：
D. Herms
中科院分区：
文献类型：
--
作者：
D. Suckling;P. Tobin;D. McCullough;D. Herms
摘要
入侵物种日益威胁全球生态系统、粮食生产和人类福祉。数以百计的根除计划针对广泛的非本地昆虫物种，以减轻生物入侵对经济和生态的影响。许多这样的程序使用多种策略来实现这一目标，但策略之间的相互作用很少得到正式的考虑，特别是当它们与Allee动力学相互作用时。如果一个种群可以被驱赶到一个Allee阈值以下，灭绝的可能性就会变得更大，这是因为诸如未能找到配偶、未能满足天敌或未能成功利用食物资源，以及人口和环境的随机性等因素。Allee阈值的一个关键含义是，可以在不需要杀死最后一个个体的情况下消灭种群。一些控制策略的组合可以与Allee动力学相互作用，以增加成功根除的概率。策略的组合可以被认为对Allee动力学具有协同（从组合中实现灭绝的更高效率）、加和（相对于单独的单一策略没有改善）或拮抗（从组合中降低效率）效应。我们突出的例子可能会采取协同作用，相加，或拮抗作用的害虫种群的策略组合。通过利用多种策略对Allee动态的相互作用，可以提高根除计划的成功率和成本效益。
ABSTRACT
Invasive species increasingly threaten ecosystems, food production, and human welfare worldwide. Hundreds of eradication programs have targeted a wide range of nonnative insect species to mitigate the economic and ecological impacts of biological invasions. Many such programs used multiple tactics to achieve this goal, but interactions between tactics have received little formal consideration, specifically as they interact with Allee dynamics. If a population can be driven below an Allee threshold, extinction becomes more probable because of factors such as the failure to find mates, satiate natural enemies, or successfully exploit food resources, as well as demographic and environmental stochasticity. A key implication of an Allee threshold is that the population can be eradicated without the need and expense of killing the last individuals. Some combinations of control tactics could interact with Allee dynamics to increase the probability of successful eradication. Combinations of tactics can be considered to have synergistic (greater efficiency in achieving extinction from the combination), additive (no improvement over single tactics alone), or antagonistic (reduced efficiency from the combination) effects on Allee dynamics. We highlight examples of combinations of tactics likely to act synergistically, additively, or antagonistically on pest populations. By exploiting the interacting effects of multiple tactics on Allee dynamics, the success and cost-effectiveness of eradication programs can be enhanced.
影响因子：
56.9
作者：
LANDE, R
通讯作者：
LANDE, R