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What factors govern the occurrence of highly developed territorial behavior termed barricade building in Ilyoplax pusilla (Crustacea ; Brachyura)?

哪些因素控制 Ilyoplax pusilla（甲壳纲；Brachyura）高度发达的领土行为（称为路障构建）的发生？

基本信息

批准号：
14540578
负责人：
WADA Keiji
金额：
$ 2.24万
依托单位：
Nara Women's University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14540578/
关键词：
animal ecology mathematical ecology social behavior territory invertebrate brachyuran crab tidal flat game model 海洋生物

项目摘要

Factors governing the occurrence of unique territorial behavior termed barricade building by the brachyuran crab Ilyoplax pusilla (family Dotilllidae) living on tidal flat, have been explored for the following aspects.1.Influence of external factors on frequency of barricade buildingThe frequency of barricade building increased in the breeding season, but was not correlated with the tidal regime. The frequency was also not related with the population density or with difference of the substratum condition.2.Relationship of barricade building with mating successComparison of occurrence of barricade building between pairing males and non-pairing males revealed that the former made barricade building more frequently than the latter. This finding suggests that barricade functions advantageously for pair formation.3.Interspecific comparison of earthen-structure avoiding tendencyComparison of response to artificial earthen structure between Ilyoplax pusilla and other two dotillid species with … More out barricade building behavior, revealed that I.pusilla less frequently broke the structure or avoided it more frequently than the other two species.4.Model constructionIn one model, three strategies each for barricader (build, do not build, build to smaller) and barricadee (destroy, do not destroy, destroy to smaller) are assigned, and the evolutionary dynamics of their frequency has been investigated. The model shows that cost by barricade should be frequency dependent to explain why only part of population members build barricades. However, the equilibrium is only neutrally stable and random genetic drift should turn the system with no barricade. Introduction of frequency depended strategy, destroy barricade depending on their frequency, made the equilibrium with intermediate barricade frequency stable. In the other model, life history strategies have been investigated by dynamic programming method. In ESS, barricade is built only in the breeding season, which coincides with field data Less

本文从以下几个方面探讨了潮滩短尾蟹（Ilyoplax pusilla）独特的领土行为-筑障行为的影响因素：1.外界因素对筑障频率的影响在繁殖季节，筑障频率增加，但与潮况无关。2.障碍物的建立与交配成功的关系通过对配对雄虫和非配对雄虫障碍物的比较，发现配对雄虫比非配对雄虫更容易建立障碍物。3.土结构回避倾向的种间比较 ...更多信息 4.模型构建在一个模型中，分别为障碍者（构建，不构建，构建更小）和障碍者（破坏，不破坏，破坏更小）分配了三种策略，并研究了它们频率的进化动态。该模型表明，路障的成本应该是频率依赖的，以解释为什么只有一部分人口成员建立路障。然而，平衡只是中性稳定和随机遗传漂变应该把系统没有障碍。引入了频率依赖策略，根据路障的频率来破坏路障，使路障频率处于中间平衡状态。在另一个模型中，生活史策略已被研究的动态规划方法。在ESS中，路障只在繁殖季节建造，这与现场数据一致Less