热应激条件会影响自由放牧的绵羊的社会网络结构
Zachary Borthwick1, Katrin Quiring2,3, Simon C Griffith2,4
1School of Animal and Veterinary Sciences The University of Adelaide Roseworthy South Australia Australia.
Ecology and evolution
|February 14, 2024
概括
气候变化加剧了热浪,改变了绵羊的行为. 在热应激期间增加的阴影使用加强了社交网络连接,影响了群体动态和潜在的疾病传播.
科学领域:
- 动物行为 动物行为
- 气候变化生态学 气候变化生态学
- 社交网络分析分析
背景情况:
- 由于气候变化,极端天气事件,如热浪,正在增加.
- 动物的行为适应应对环境极端,包括热调节策略,如寻找阴影.
- 社会物种的行为变化可以影响社会网络结构和个人连接.
研究的目的:
- 为了研究热应激和寻找阴影的行为如何影响社交网络结构和自由放牧的绵羊的个人连接.
- 量化热应激 (温度湿度指数) 和社交网络动态之间的关系.
- 在热应激期间识别社会网络结构变化的特定行为驱动因素.
主要方法:
- 在澳大利亚的一个干旱地区,GPS跟踪48只自由放牧的羊.
- 使用温度湿度指数 (THI) 量化热应力.
- 社交网络分析,以评估网络密度,模块化和个人连接指标 (程度,强度,间距).
主要成果:
- 热应激的恶化导致绵羊更多地使用阴影.
- 在热应激下,社交网络变得更加连接 (更高的密度) 和结构较差 (更低的模块化).
- 个人使用阴影显著影响了社交连接,中间的阴影用户显示了最高的连接.
结论:
- 由气候变化带来的热应激通过改变社会网络结构来改变动物的社会环境.
- 社交网络中的这些变化可能对社会食,信息传输和疾病传播产生级联影响.
- 了解这些影响对于预测社会动物中热应激增加的生态和健康后果至关重要.
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