Pioneer-Follower dilemma game in Acanthoscelides obtectus (Coleoptera: Bruchidae)
Pioneer-Follower dilemma game in Acanthoscelides obtectus (Coleoptera: Bruchidae)
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Acanthoscelides obtectus（鞘翅目：Bruchidae）中的先锋-追随者困境博弈
DOI：
10.1007/s10164-008-0096-x
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发表时间：
2008
影响因子：
0.9
通讯作者：
Y. Toquenaga
中科院分区：
文献类型：
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作者：
Y. Ohtsuka;Y. Toquenaga
Acanthoscelides obtectus 的幼虫在进入豆子时表现出两种截然不同的行为。一种是先锋行为，幼虫通过自己形成的入口孔进入豆子；另一种是追随行为，幼虫通过先驱者制造的入口孔进入豆子。此前的研究表明，追随者的数量远多于先驱者的数量。如果成为先锋是有成本的，并且如果幼虫可以选择这两种策略中的任何一种，那么就会出现一个两难境地：是否成为先锋。这种困境类似于小鸡游戏，因为如果所有幼虫都避免选择有风险的先锋策略而选择跟随者策略，那么没有一个幼虫可以进入豆子，它们就会死亡。本研究旨在探讨A.的幼虫是否存在。 obtectus面临着进入顺序的困境，我们通过实验测算了先驱者的成本，并测试了幼虫进入策略的灵活性。先锋成本通过进入成功率来衡量，幼虫策略的灵活性通过衡量不同幼虫密度下先锋的比例来测试。先驱者的进入成功率低于追随者，并且随着竞争幼虫数量的增加，先驱者的比例下降。这些结果表明 A 中的先锋-追随者相互作用。 obtectus 满足困境博弈的条件：A 的幼虫。 obtectus 陷入进场顺序的困境。
Larvae ofAcanthoscelides obtectusshow two contrasting behaviors when entering a bean. One is pioneer behavior in which a larva enters the bean through an entrance hole made by itself; the other is follower behavior in which a larva enters the bean through an entrance hole made by a pioneer. Previous studies have shown that the number of followers is much greater than that of pioneers. If there is a cost to being a pioneer, and if larvae can choose either of the two strategies, there is a dilemma: to be a pioneer or not. This dilemma is similar to the chicken game because if all larvae avoid choosing the risky pioneer strategy in favor of the follower strategy, none of the larvae can enter a bean, and they will die. In the present study, in order to investigate whether the larvae ofA. obtectusare facing a dilemma of entry order, we experimentally measured the cost to pioneers and tested the flexibility of larval entering strategies. Pioneers’ costs were measured by entrance success rate, and the flexibility of larval strategies was tested by gauging the proportion of pioneers at various larval densities. The entrance success of pioneers was lower than that of followers, and the proportion of pioneers decreased as the number of competing larvae increased. These results suggest that the Pioneer-Follower interaction inA. obtectussatisfies the conditions for a dilemma game: the larvae ofA. obtectusare in a dilemma of entry order.
Kinoshita, M.、Kasuya E、Yahara T：“产卵位点的时间依赖性竞争对无花果黄蜂的窝数和后代性别比例的影响”Oikos。
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