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身体大小,营养状况和内分泌状况与长寿海洋物种的分娩概率有关

Enrico Pirotta¹, Leslie New², Alejandro Fernandez Ajó³

¹Centre for Research into Ecological and Environmental Modelling, University of St Andrews, St Andrews, UK.

The Journal of animal ecology

|June 12, 2025

概括

野生动物健康指标预测人口状况. 灰的分娩概率取决于体型和能量储备,年轻鱼的数量较少,这表明其潜在的数量下降.

科学领域:

野生动物生态学
人口动态人口动态
保护生物学保护生物学

背景情况:

动物健康对生命史表现和人口状况至关重要.
监测健康指标可以在丰富度转移之前预测人口变化.

研究的目的:

开发一个贝叶斯状态空间模型,将灰健康指标与分娩概率联系起来.
评估太平洋海岸养群灰的健康状况和潜在的未来状态.

主要方法:

利用了长达8年的灰观测,测量和便样本数据集.
开发了一个贝叶斯状态空间模型,集成能量,内分泌和形态健康指标.
分析了人口年龄结构和个体体型的趋势.

主要成果:

产卵概率受女性体型和能量储备的影响,与葡萄糖皮质激素水平有轻微的负相关性.
灰种群的年轻个体比预期的要少,以保持稳定或增长.
身体尺寸和年龄结构的减少表明潜在的人口下降.

结论:

健康指标可以预测长寿物种的生命率和人口趋势.
太平洋海岸的灰种群可能面临着下降.
这种建模方法可以帮助各种野生动物种群的保护工作.

关键词:

贝叶斯状态空间建模贝叶斯状态空间建模太平洋海岸养小组太平洋海岸养小组生概率的概率早期预警信号早期预警信号灰是一种灰.健康的健康健康的健康.干扰对人口造成的后果.

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