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Erin L Koen¹, E Hance Ellington^2,3, William J Barichivich⁴

¹Cherokee Nation System Solutions, Contracted to U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, Florida, United States of America.

|September 22, 2025

概括

超过36%的装饰合唱青 (Pseudacris ornata) 种群可能已经灭绝,其持久性受到息地和降水的影响. 保护工作对这种正在衰退的两动物物种至关重要.

科学领域:

两动物种群生态学
保护生物学保护生物学
种类分布建模种类分布建模

背景情况:

装饰的合唱青 (Pseudacris ornata) 种群面临着事性的下降,但范围范围的状况在很大程度上是未知的.
了解种群动态是识别脆弱物种和实施保护战略的关键.

研究的目的:

为了估计历史装饰合唱青种群的当前持久概率.
为了确定影响装饰合唱青种群生存的因素.
准确地确定装饰合唱青种群繁荣或可能灭绝的地区.

主要方法:

利用Pseudacris ornata的2227个经过验证的存在记录,定义了407个不同的种群.
使用经过修改的Cormack-Jolly-Seber生存分析来计算人口持久概率.
评估了息地适宜性,降雨量,城市化和保护区对持久性的影响.

主要成果:

超过36%的历史装饰合唱青种群显示了灭绝的高概率 (持久性<0.5).
大约33%的人口表现出持久性高概率 (持久性>0.9),集中在佛罗里达州,阿拉巴马州和乔治亚州.
息地适宜性,冬季降水与持续性正相关,而城市不透气性则对其产生了负面影响.

结论:

装饰性合唱青种群的很大一部分可能已经灭绝,这凸显了迫切的保护需求.
有足够降水的保护区和适合的息地对于Pseudacris ornata的生存至关重要.
这项研究提供了关键的数据,以有针对性地保护整个范围内的装饰合唱青.

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