热点,人口周转和长期数据:来自短命青的生态见解
Richard M Lehtinen1, Katherine L Krynak2, Gregory J Lipps3
1Biology Department The College of Wooster Wooster Ohio USA.
Ecology and evolution
|December 4, 2025
概括
布兰查德的青的种群周转受其靠近核心种群 ("热点") 和高速公路的影响. 长期数据显示,近年来灭绝和殖民率较高,强调需要持续的生态监测.
科学领域:
- 生态与保护生物学 生态与保护生物学
- 两动物生态 两动物生态
- 人口动态 人口动态
背景情况:
- 人口流动,包括当地灭绝和重新殖民,是一个关键的生态过程.
- 了解人口流动的驱动因素,特别是在地方和景观层面,仍然具有挑战性.
- 短生物种提供了有价值的洞察力,以动态的生态过程,由于他们的快速的周转率.
研究的目的:
- 实证地估计布兰查德 (Acris blanchardi) 的本地灭绝和殖民频率.
- 确定影响这些人口流动动态的当地和景观因素.
- 在占用模型框架内利用长期数据集,以考虑检测概率.
主要方法:
- 利用了长期监测数据集 (2004-2008年和2017-2022年) 的布兰查德的青种群.
- 在俄俄州西北部的102个水生息地进行了1491次听力调查.
- 采用占用率建模框架来估计灭绝和殖民率,同时解决检测概率.
主要成果:
- 在整个研究期间 (2004-2022年) 估计的殖民和灭绝率相似.
- 然而,在最近的时间段 (2017-2022年) 中,相对于早期的时间段 (2004-2008年) 来说,这一比例显著上升.
- 靠近"热点" (弹性核心人口) 和主要高速公路显著影响了殖民和灭绝概率,连接指标比息地结构更有影响力.
结论:
- 弹性核心人口通过减少灭绝和促进附近地区的殖民化,在维持区域人口动态方面发挥着至关重要的作用.
- 景观连接,特别是接近"热点"和高速公路,是影响两动物种群流动的关键因素.
- 长期的生态监测对于理解季节性过程和为像布兰查德的子青这样的物种提供保护策略至关重要.
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