在不断变化的环境中养育孩子:对常见的鱼中益乳素,父母的努力和生殖成功的长期研究
Bertille Mohring1, Markus Öst2, Kim Jaatinen3
1Environmental and Marine Biology, Åbo Akademi University, 20500 Turku, Finland; Centre d'Etudes Biologiques de Chizé, UMR 7372 CNRS - La Rochelle Université, 79360 Villiers-en-Bois, France; School of Environmental Sciences, University of Liverpool, Liverpool L69 3GP, United Kingdom.
General and comparative endocrinology
|June 27, 2024
概括
雌性鱼中的益生菌 (PRL) 水平与年龄和身体状况相关,但与掠食风险没有直接关联. 升高的PRL支持在具有挑战性的条件下化成功,显示激素灵活性.
科学领域:
- 内分泌学 在内分泌学.
- 行为生态学 行为生态学
- 鸟类生物学 鸟类生物学
背景情况:
- 父母的照顾受内分泌机制的影响,其中益乳素 (PRL) 在父母的行为中起着关键作用.
- 在调整父母努力以适应环境变化,特别是掠食压力的过程中,PRL的作用需要进一步研究.
研究的目的:
- 调查基线前素 (PRL) 水平与雌性常见鱼的年龄,身体状况,离合器大小和环境因素之间的关系.
- 确定PRL水平是否适应波动的掠食风险,以及这些因素如何影响化成功.
主要方法:
- 长期监测了1277个雌性常见海的繁殖尝试 (2012-2022年).
- 分析基线PRL水平与女性特征 (年龄,身体状况,离合器大小) 和环境参数 (掠食压力,气候,巢穴微生物息地) 的关系.
- 评估PRL水平,女性特征,环境因素和化成功之间的相关性.
主要成果:
- PRL水平与女性的身体状况和年龄呈正相关性,在最老的育种者中出现衰老的下降.
- 没有观察到人口或个人水平的PRL减少,以应对增加的掠食压力.
- 在研究期间,人口水平的PRL水平增加,这与掠食威胁的增加,身体状况的改善和年长的繁殖雌性相吻合.
- 基线PRL水平升高与化成功增加有关,特别是在内部约束或具有挑战性的环境条件下.
结论:
- 雌性鱼的基线PRL水平受到年龄和身体状况的影响,但不受捕食风险的直接抑制.
- 升高的PRL可能会在各种约束条件下提高化成功,这表明个人内有显著的灵活性.
- 进一步的研究应该检查基线和压力诱导的PRL水平,以了解家长的努力灵活性.
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