Data from: A bridge between oceans: Overland migration of marine birds in a wind energy corridor

Located at the shortest overland route between the Gulf of Mexico and the Pacific Ocean, Mexico's Tehuantepec Isthmus is a globally important migratory corridor for many terrestrial bird species. The Pacific coast of the Isthmus also contains a significant wetland complex that supports large multi-species aggregations of non-breeding waterbirds during the boreal winter. In recent years, extensive wind energy development has occurred in the plains bordering these wetlands, directly along the migratory flyway. Using recent studies of movement patterns of three marine-associated bird species—reddish egrets (Egretta rufescens), brown pelicans (Pelecanus occidentalis), and red knots (Calidris canutus)—from the northern Gulf of Mexico, we assess the use of the isthmus as a migratory corridor. Our data provide evidence that marine birds from the Gulf region regularly overwinter along the Pacific coast of Mexico and use the isthmus as a migratory corridor, creating the potential for interaction with terrestrial wind farms during non-breeding. This study is the first to describe migration by marine-associated bird species between the Gulf of Mexico and Pacific coast. These data contribute new information toward ongoing efforts to understand the complex migration patterns of mobile marine species, with the goal of informing integrated conservation efforts for species whose year-round habitat needs cross ecoregional and geopolitical boundaries.墨西哥特万特佩克地峡（Tehuantepec Isthmus）地处墨西哥湾与太平洋之间的最短陆路要道，是众多陆生鸟类重要的全球性迁徙廊道。该峡湾的太平洋沿岸还分布有规模可观的湿地群，在北半球冬季期间可支撑大量非繁殖期水鸟的多物种聚集活动。近年来，紧邻这些湿地的平原区域——恰好位于迁徙飞行路线之上——已开展了大规模风电开发项目。本研究依托墨西哥湾北部海域3种海洋关联鸟类——红鹭（Egretta rufescens）、褐鹈鹕（Pelecanus occidentalis）以及红腹滨鹬（Calidris canutus）的最新活动模式研究数据，评估该峡湾作为迁徙廊道的使用情况。本研究数据证实，来自墨西哥湾海域的海洋鸟类会定期在墨西哥太平洋沿岸越冬，并以该峡湾作为迁徙廊道，这使得它们在非繁殖期存在与陆地风电场产生交互的潜在风险。本研究首次揭示了海洋关联鸟类在墨西哥湾与太平洋沿岸之间的迁徙活动。本研究数据为当前解析移动性海洋物种复杂迁徙模式的相关工作提供了新信息，旨在为那些全年栖息地需求跨越生态区域与地缘政治边界的物种制定整合式保护策略提供科学依据。