食的勇气与侵略有关:在高海拔Tetramorium alpestre?中选择与完全放弃侵略的选择
Marie-Luise Contala1, Patrick Krapf1,2, Florian M Steiner1
1Molecular Ecology Group, Department of Ecology, Universität Innsbruck, Innsbruck, Austria.
Insect science
|August 21, 2023
概括
侵略性 (Tetramorium alpestre) 表现出更大胆,更探索性和冒险的行为,这表明这些特征与侵略相结合并形成行为综合征. 在高海拔环境下,这种攻击似乎是适应性的.
科学领域:
- 行为生态学 行为生态学
- 动物行为 动物行为
- 进化生物学 进化生物学
背景情况:
- 侵略常常与其他行为同时发生,形成"行为综合征".
- 侵略的适应价值取决于利益与成本的比率,在这种情况下,利益必须超过成本.
- 了解行为综合征对于理解侵略的演变和生态至关重要.
研究的目的:
- 为了调查特定的行为 (大胆,探索,食,冒险) 是否与两种不同种群的Tetramorium alpestre的侵略性相结合.
- 确定T. alpestre. 的侵略性与和平种群中是否存在行为综合征.
- 评估这种高海拔物种中侵略性的适应意义.
主要方法:
- 收集了侵略性和和平的T. alpestre种群的殖民地碎片,并观察了三周.
- 包括大胆,探索,寻找食物和冒险在内的行为被系统地分析.
- 使用统计分析来评估行为重复性和人群之间的差异.
主要成果:
- 大胆和探索行为显示出高可重复性,验证了实验设置.
- 侵略性的人群明显比和平的人群更大胆,更有探索性,更容易冒险.
- 行为综合征是指定的,大胆,探索和冒险与侵略相结合,但寻找食物不是.
结论:
- 在Tetramorium alpestre中,侵略性可能是适应性的,并与大胆,探索和冒险行为相结合,形成不同的行为综合征.
- 这些发现表明,选择有利于这种物种的侵略性,可能抵消了对物种内部侵略性的损失.
- 包括侵略在内的行为综合征在特定生态条件下的适应中发挥作用,例如资源获取.
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