填补空白：柯利马莺的蜕皮行为和研究不足的北美鸣禽的研究机会

IF 0.2 4区环境科学与生态学 Q4 Agricultural and Biological Sciences

Southwestern Naturalist Pub Date : 2022-02-02 DOI:10.1894/0038-4909-65.3-4.249

Benjamin Gochanour, J. Alcantara, Paula M. Cimprich, J. Kelly, A. Contina

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引用次数: 0

摘要

摘要我们采用稳定同位素分析来评估Colima莺（Leiothlypis crissalis）的蜕皮行为，这是一种研究不足的迁徙鸣禽，发生在墨西哥，最近发现在美国得克萨斯州南部繁殖。我们建立了一个地质统计模型，显示了墨西哥东北部科利马莺繁殖区内氘降水值（d2Hp）在纬度梯度上的变化。然后，根据羽毛中氘的稳定同位素比率（d2Hf），我们将在墨西哥中部捕获的越冬科利马莺分配到该物种繁殖范围西南部附近可能的蜕皮区域。据我们所知，这是第一次在墨西哥盆地周围山脉附近的墨西哥城生态公园内记录科利马莺捕获和重新捕获的实地研究。总的来说，我们的研究证明了冬季生态学实地调查与分子研究技术（如稳定同位素分析）相结合的潜力，可以揭示分布范围有限的莺的迁徙和蜕皮行为。

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FILLING THE GAP: MOLTING BEHAVIOR OF COLIMA WARBLERS AND RESEARCH OPPORTUNITIES FOR UNDERSTUDIED NORTH AMERICAN SONGBIRDS

Abstract We implemented stable isotope analysis to evaluate the molt behavior of the Colima warbler (Leiothlypis crissalis), an understudied migratory songbird occurring in Mexico and recently discovered breeding in the southern part of Texas, USA. We built a geostatistical model showing variation in deuterium precipitation values (d2Hp) across a latitudinal gradient within the Colima warbler breeding range in northeastern Mexico. Then, based on stable isotope ratios of deuterium in feathers (d2Hf), we assigned wintering Colima warblers captured in Central Mexico to possible molting areas near the southwestern portion of the species' breeding range. To the best of our knowledge, this is the first field study documenting Colima warbler captures and recaptures within the Parque Ecológico de la Ciudad de México, near the mountain ranges surrounding the Basin of Mexico. Overall, our study demonstrates the potential of winter ecology fieldwork in conjunction with molecular study techniques, such as stable isotope analysis, for revealing the migratory and molting behavior of warblers with restricted distribution ranges.

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来源期刊

Southwestern Naturalist 环境科学-生态学

CiteScore

0.50

自引率

50.00%

发文量

审稿时长

18-36 weeks

期刊介绍： The Southwestern Naturalist (a publication of the Southwestern Association of Naturalists since 1953) is an international journal (published quarterly) that reports original and significant research in any field of natural history. This journal promotes the study of plants and animals (living and fossil) in the multinational region that includes the southwestern United States, Mexico, and Central America. Appropriate submission of manuscripts may come from studies conducted in the countries of focus or in regions outside this area that report significant findings relating to biota occurring in the southwestern United States, Mexico, and Central America. Publication is in English, and manuscripts may be feature articles or notes. Feature articles communicate results of completed scientific investigations, while notes are reserved for short communications (e.g., behavioral observations, range extensions, and other important findings that do not in themselves constitute a comprehensive study). All manuscripts (feature articles and notes) require an abstract in both English and Spanish.