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在低度地区捕养的红象 (Eudocimus ruber) 种群的管理和繁殖参数

Camilo A G González¹, Ricardo J G Pereira², Allana Lais Alves Lima¹

¹Amazonian Animal Reproduction Post-graduation Program, Federal University of Pará and Federal Rural University of Amazônia, Belém, Pará, Brazil.

Animal reproduction science

|September 16, 2025

概括

囚禁的红色白 ibis 繁殖计划显示了更高的产卵率,更高的围密度和1:1的男性对女性比率. 这些发现增强了Threskiornithidae家族的鸟类保护战略.

科学领域:

鸟类保护生物学鸟类保护生物学
监禁繁殖计划中的养殖计划.
野生动物管理管理

背景情况:

有效的养养殖对于保护临灭绝的鸟类物种至关重要.
红 (Eudocimus ruber) 是一个具有保护意义的物种.
了解养中的繁殖表现对于种群管理至关重要.

研究的目的:

描述三年 (2022-2024) 期间一个被囚禁的红斑马群体的繁殖表现.
确定影响繁殖成功的因素,如年龄,体密度,性别比率和卵子提取.
提供数据,以加强红色伊比斯和相关物种的养殖计划.

主要方法:

从2022年到2024年对一个被囚禁的红斑鸟种群的观察和数据收集.
分析繁殖季节的时间,对形成的年龄,围密度和性别比率.
监测产卵率,取卵后更换离合器和蛋重量.
测量与化相关的卵的体重减轻.

主要成果:

繁殖季节发生在每年7月至1月之间.
在两岁的小人身上观察到配对形成,男性的最大配对年龄为20岁,女性为12岁.
较高的围密度和1:1的男性对女性比率对产卵率和对形成产生了积极的影响.
在取出卵子后,雌性平均产下了7.6个替代离合体.
较早的产卵与初始蛋重量增加有关 (p < 0.01).
在化期间,每天卵子体重的平均损失为0.7%,到21日损失为19 ± 2%.

结论:

通过管理围密度和性别比率,可以优化囚禁的红白的繁殖成功.
移除卵子可以刺激多个替代离合器,表明生殖可塑性.
化动态提供了对生殖生理学的见解.
这些发现有助于改进红色伊比斯的养殖计划,并为其他Threskiornithidae物种的策略提供信息.

关键词:

在亚马逊亚马逊亚马逊亚马逊亚马逊亚马逊鸟类鸟类鸟类鸟类繁殖繁殖繁殖繁殖保护保护保护保护伊比斯 (Ibis) 是一种.化过程中的化.

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