收割殖民地在集体行为可塑性上有所不同,以调节水损失
D M Gordon1, E Steiner2, Biplabendu Das1
1Department of Biology, Stanford University, Stanford, CA 94305, USA.
Royal Society open science
|September 22, 2023
概括
红色收割殖民地在水应激反应中显示出一致的差异. 一些殖民地逐年减少干旱天的食,有助于干旱适应.
科学领域:
- 行为生态学 行为生态学
- 动物行为 动物行为
- 沙漠生态 沙漠生态
背景情况:
- 群体表现出集体行为可塑性,以适应环境变化.
- 红色收割 (Pogonomyrmex barbatus) 是一种沙漠物种,它根据水压力来调节食.
- 食通过蒸发而失去水,需要采取节水策略.
研究的目的:
- 为了确定行为可塑性的殖民地水平差异是否会持续多年.
- 调查食调节的长期一致性,以应对湿度变化.
主要方法:
- 在5年的时间里 (2016-2021) 对95个Pogonomyrmex barbatus殖民地进行了纵向观测.
- 监测与每日最大相对湿度相关的食活动.
- 分析殖民地对干旱条件的反应的年对年一致性.
主要成果:
- 观察到殖民地之间在调节基于湿度的食活动方面存在显著差异.
- 每年大约有40%的殖民地在干燥的日子里持续减少食.
- 大约20%的殖民地在干燥的日子里没有减少食,保持或增加活动.
结论:
- 作为对水压力的反应,殖民地特定的行为可塑性是一种持久的特征.
- 食监管中的这种变化可能会提高殖民地对干旱和气候变化的抵抗力.
- 集体行为中的一致差异可以在一代一代的工人中保持.
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