Experimental and eigenvalue-sensitivity analyzes on the evolution of life-history parameters in a migratory-resident insect

迁徙昆虫生活史参数演化的实验和特征值敏感性分析

• 批准号: 05640706
• 负责人: YAHARA Tetsukazu
• 金额: $ 1.34万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05640706/
• 关键词: sensitivity analysis; survival and reproduction schedule; projection matrix; reproduction curve; density dependence; Callosobruchus chinensis; life history evolution; 繁殖のスケジュール; 生存のスケジュール; 移動分散; アズキゾウムシ; 生活史パラメータ; Leslie行列; 個体群平衡値; Callsobru

We studied the evolution of reproduction and survival schedules in the azuki bean weevil, Callosobruchus chinensis, whose life history repeats migration and residence phases between host plants and storages. We used wild strains of C.chinensis as well as a laboratory strains which has been kept at high densities for more than 50 years. The wild strains were considered that they has rarely density-dependent mortality because of the long migratory phase.The laboratory strain has a larger body size at emergence, more daily fecundity, and longer longevity in comparison with wild strains under non-feeding condition. With feeding, however, those wild strains has more daily fecundity and longer longevity. We progress the eigenvalue-sensitivity analysis based on the experimental results.In addition, we estimated the most effective parameter (s) on the fitness under density-dependent condition, based on sensitivity of the equilibrium population size to population parameters. Population processes were formulated as the logistic-defference equation separately outside (oviposition) and inside (larval development) beans. The sensitivity analysis showed that maximal production of hatched eggs were most effective on the equilibrium population size. We elucidated the less mobility of the laboratory strain as the most contributed characteristics to higher the maximal production of hatches eggs.

我们研究了小豆象甲（Callosbruchus chinensis）的繁殖和生存时间表的演变，其生活史在寄主植物和储存地之间重复迁移和停留阶段。我们使用了中华栝树的野生菌株以及已经高密度保存了50多年的实验室菌株。野生品系由于迁徙期较长，被认为很少出现密度依赖性死亡率。与非饲养条件下的野生品系相比，实验室品系出苗时体型较大，日产卵量较多，寿命较长。然而，通过喂养，这些野生菌株的每日繁殖力更高，寿命也更长。我们在实验结果的基础上进行了特征值敏感性分析。此外，我们根据平衡种群规模对种群参数的敏感性，估计了密度依赖条件下适应度最有效的参数。种群过程被分别表述为豆类外部（产卵）和内部（幼虫发育）的逻辑差异方程。敏感性分析表明，孵化蛋的最大产量对平衡种群规模最有效。我们阐明了实验室菌株的较低流动性是对提高孵化蛋最大产量最有贡献的特征。

项目成果

Tuda,M.& Simada,M.: "Sensitivity analysis on density-dependent natural selection on the equilibrium population size in the azuki bean weevil,Callosobrucus chinensis." Evol.Ecol.(印刷中). (1995)

Tuda, M. 和 Simada, M.：“小豆象甲 Evol.Ecol 中密度依赖性自然选择对平衡种群规模的敏感性分析”（正在出版）。

Shimada,M.& Tuda,M.: "Delayed density dependence and oscillatory population dynamics in overlapping-generation systems of Callosobruchus chinensis:Projection matrix model." Oecologia. (印刷中). (1995)

Shimada, M. & Tuda, M.：“中国蝼蛄重叠世代系统中的延迟密度依赖性和振荡种群动态：投影矩阵模型”（出版中）。

Tuda,M.& Shimada,M.: "Population-level analysis on reduction in eguilibrium population size of the azuki bean beetle" Res.Popul.Ecol.35(2) (印刷中). (1993)

Tuda, M. 和 Shimada, M.：“小豆甲虫平衡种群规模减少的种群水平分析”Res.Popul.Ecol.35(2)（出版中）。

嶋田正和: "撹乱を受けるパッチ状環境での植物と植食性昆虫:絶滅か存続か?" 科学(岩波書店). 64. 662-671 (1994)

Masakazu Shimada：“受干扰的斑块环境中的植物和食草昆虫：灭绝还是生存？”（岩波书店）64. 662-671（1994）。

嶋田正和・他: "生物行動のトップダウン・モデルとボトムアップ・モデル:思想自由度分布を実現するアズキゾウムシ" FANSymposium講演論文集. 4. 183-188 (1994)

Masakazu Shimada 等人：“生物行为的自上而下和自下而上模型：小豆象甲实现思想自由度的分布”FANSymposium Lecture Proceedings，4. 183-188 (1994)。