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首页> 外文期刊>Wader study: the international journal of shorebird science >Kiawah and Seabrook islands are a critical site for the rufa Red Knot
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Kiawah and Seabrook islands are a critical site for the rufa Red Knot

机译：基洼岛和西布鲁克岛是红腹滨鹬的重要地点

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© 2022, International Wader Study Group. All rights reserved.The rufa Red Knot Calidris canutus rufa is a migratory shorebird that performs one of the longest known migrations among birds and has experienced a population decline of over 85% in recent decades. During migration, rufa Red Knots rest and refuel at stopover sites along the Atlantic Coast of the USA, including Kiawah and Seabrook islands in South Carolina. We document the importance of Kiawah and Seabrook islands for knots during their spring migration using on-the-ground surveys between 19 February and 20 May 2021 to record the occurrence and proportion of individually marked knots, as well as geolocators deployed on knots captured in the area. Using a superpopulation model, we estimated a minimum passage population of 17,247 knots (95% CI: 13,548–22,099; ~41% of the total rufa knot population) and an average stopover duration of 47 days (95% CI: 40.1–54.8). Our geolocator results showed that knots using Kiawah and Seabrook islands can bypass Delaware Bay and fly directly to the Canadian Arctic. Finally, our geolocators, combined with resighting data from across the Atlantic Flyway, indicate that a large network of more than 70 coastal sites concentrated largely in the southeastern USA provide stopover and overwintering habitat for the knots we observed on Kiawah and Seabrook islands. These findings show that Kiawah and Seabrook islands should be recognized as critical sites in the knot network and, therefore, a conservation priority. The threats facing these sites, such as prey depletion, anthropogenic disturbance, and sea level rise, require immediate attention.
机译：©2022年国际涉禽研究小组。版权。canutus温泉是一种迁徙滨鸟执行一个最长的迁移在鸟类和经历了人口近几十年来下降超过85%。迁移,温泉红节休息和加油沿着大西洋海岸的停留地点美国,包括Kiawah和西布鲁克岛屿南卡罗来纳。节期间Kiawah和西布鲁克的岛屿他们使用实地春季迁徙2月19日至2021年5月20日的调查记录的发生和比例单独结,以及进行在该地区部署在海里了。superpopulation模型,我们估计最少通过人口17247节(95%置信区间CI:13548 - 22099;人口)和平均停留时间47天(95%置信区间:40.1—-54.8)。结果表明,使用Kiawah和结西布鲁克岛可以绕过特拉华湾和飞翔直接向加拿大北极。进行,再加上resighting数据横跨大西洋再表明一个大70多个沿海网站的网络主要集中在美国东南部提供停留和越冬栖息地我们观察到的结Kiawah和西布鲁克岛屿。西布鲁克岛应该被认为是至关重要的网站的结网,因此保护优先。网站,如猎物损耗,人为干扰,海平面上升,要求立即注意。

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