潜入动态体加速和能源消耗的秘鲁飞机中的潜水
Francis van Oordt1, Jaime Silva2, Allison Patterson1
1Department of Natural Resources, McGill University, Montreal, QC, Canada, H9X 3V9.
The Journal of experimental biology
|September 27, 2024
概括
动态身体加速 (DBA) 可以估计秘鲁乳头的每日能量消耗 (DEE). 这种方法为研究海鸟在不断变化的海洋环境中的能量学提供了有价值的工具.
科学领域:
- 动物生态动物生态学
- 生理生态生态学 生理生态学
- 生物能源学 生物能源学
背景情况:
- 每日能源支出 (DEE) 受活动分配和能源成本的影响.
- 动态体加速 (DBA) 是估计DEE的潜在代理.
- 以前对鸟类DBA-DEE相关性的研究仅限于在热中性区域以下食的物种.
研究的目的:
- 验证DBA用于估计潜水海鸟 (秘鲁鸟) 的DEE的使用.
- 为了研究DBA和DEE之间的关系,在一个在热中性区域以上食的物种中.
- 评估环境温度对DBA-DEE关系的影响.
主要方法:
- 使用双标记水 (DLW) 来测量秘鲁 (Sula variegata) 的质量特定DEE.
- 收集的DBA数据与DLW衍生DEE相关联.
- 对比不同的建模方法 (仅DBA,活动特定,时间预算) 来估计DEE.
主要成果:
- 质量特异性DEE为1.12kJ/天/g,男性比女性更高.
- 单独的DBA提供了最适合估计质量特定DEE的方法.
- 殖民地的活动虽然耗时,但对DEE的贡献最大,而食是最耗电的活动.
结论:
- DBA可以作为一个可靠的代理估计DEE在秘鲁的boobies.
- 这一发现支持使用DBA来监测海鸟在动态生态系统中的能量,如洪堡流.
- 环境温度可能不是导致鸟类DBA-DEE关系脱的唯一因素.
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