Migration in Rufous-Collared Sparrows (Zonotrichia capensis) from the Southernmost Tip of America

IF 1.6 4区环境科学与生态学 Q3 ECOLOGY

Austral Ecology Pub Date : 2025-03-07 DOI:10.1111/aec.70041

Simeon Lisovski, John Wingfield, Marilyn Ramenofsky, Omar Barroso, Juan Rivero de Aguilar, Carlos E. Valeris-Chacín, Rocío Jara, Francisco Aguirre, Claudio S. Quilodrán, Ricardo Rozzi, Erik Sandvig, Rodrigo A. Vásquez

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引用次数: 0

Abstract

Little is known about the routes, timing and potential drivers of migration among austral migrants of South America. To contribute to a better understanding, we studied the migration of the southern subspecies of Rufous-collared Sparrow (Zonotrichia capensis australis) from the southernmost tip of South America. Based on 11 tracks, we found that departure from the breeding grounds in fall (post-breeding migration) occurred within a wide temporal window, beginning on March 22 and finishing on May 17. Wintering grounds were identified between 51.2° S and 31.9° S, within the Patagonian steppe ecoregion. Migration distance ranged from 450 to 2500 km, with the longest distance registered for two females who were the first to depart for the outbound route and the latest to arrive at the breeding grounds upon their return, offering an indication of a differential migration pattern.

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美洲最南端红颈麻雀的迁徙

人们对南美洲南部移民的迁徙路线、时间和潜在驱动力知之甚少。为了更好地理解这一现象，我们研究了红颈雀（Zonotrichia capensis australis）南部亚种从南美洲最南端的迁徙过程。根据11条轨迹，我们发现秋季离开繁殖地（繁殖后迁徙）发生在一个较宽的时间窗口内，从3月22日开始到5月17日结束。在巴塔哥尼亚草原生态区内，越冬地在南纬51.2°~ 31.9°之间。迁徙距离从450公里到2500公里不等，其中最长的距离记录在两只雌鸟身上，它们是第一个离开的，也是最后一个返回繁殖地的，这表明了不同的迁徙模式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Austral Ecology 环境科学-生态学

CiteScore

2.90

自引率

6.70%

发文量

117

审稿时长

12-24 weeks

期刊介绍： Austral Ecology is the premier journal for basic and applied ecology in the Southern Hemisphere. As the official Journal of The Ecological Society of Australia (ESA), Austral Ecology addresses the commonality between ecosystems in Australia and many parts of southern Africa, South America, New Zealand and Oceania. For example many species in the unique biotas of these regions share common Gondwana ancestors. ESA''s aim is to publish innovative research to encourage the sharing of information and experiences that enrich the understanding of the ecology of the Southern Hemisphere. Austral Ecology involves an editorial board with representatives from Australia, South Africa, New Zealand, Brazil and Argentina. These representatives provide expert opinions, access to qualified reviewers and act as a focus for attracting a wide range of contributions from countries across the region. Austral Ecology publishes original papers describing experimental, observational or theoretical studies on terrestrial, marine or freshwater systems, which are considered without taxonomic bias. Special thematic issues are published regularly, including symposia on the ecology of estuaries and soft sediment habitats, freshwater systems and coral reef fish.