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休斯顿和美国矮的形态和发音比较:对它们的历史范围的影响
Andrew R MacLaren1, Toby J Hibbitts2,3, Michael R J Forstner4
1Cambrian Environmental, Austin, TX, United States of America.
PeerJ
|July 12, 2024
概括
这项研究将临灭绝的休斯顿与矮人美国区分开来,使用不同的雄性广告呼叫,而不是形态. 新的博物馆记录扩大了休斯顿已知的历史范围,有助于保护工作.
科学领域:
- 类学 类学 类学 类学
- 保护生物学 保护生物学
- 生物声学是一种生物声学.
背景情况:
- 准确的物种分布数据对于保护至关重要,特别是对于像休斯顿 (Anaxyrus houstonensis) 这样的临灭绝的种类.
- 与相似的矮人美国 (Anaxyrus americanus charlesmithi) 错误识别历史上混了休斯顿的分布数据.
- 之前关于基于形态和发声来区分这些的研究已经产生了相互矛盾的结果.
研究的目的:
- 量化评估Anaxyrus houstonensis和Anaxyrus americanus charlesmithi之间的男性广告呼叫的差异.
- 量化检查以前用于区分东中德克萨斯州Bufonids的形态特征.
- 评估历史博物馆记录和照片,以确定休斯顿的历史范围.
主要方法:
- 当代对野生种群的记录被用来分析男性广告电话.
- 凭证的博物馆标本被定量检查,以区分形态学字符.
- 为了进行定性评估,组建了一个目录化的博物馆券照片数据库.
主要成果:
- 在两种全方位同源的雄性广告呼叫中发现了可量化的差异.
- 形态学检查显示了这两种类型之间的相似性,这与之前的区分主张相矛盾.
- 历史上被忽视的博物馆记录表明,休斯顿的历史范围可能比目前所接受的要大.
结论:
- 男性的广告呼叫是休斯顿和矮人美国之间的可靠区分器.
- 形态相似性需要仔细识别,突出博物馆记录中的潜在策划和命名不一致性.
- 扩大历史范围的数据和被忽视的标本的识别为休斯顿保护提供了关键的新信息.
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