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Reproduction of the American Oystercatcher (“piru-piru”), Haematopus palliatus Temminck 1820 (Aves: Haematopodidae), in northeastern Brazil
Journal of Natural History ( IF 0.8 ) Pub Date : 2020-06-17 , DOI: 10.1080/00222933.2020.1814438
Airton Janes da Silva Siqueira 1 , Anderson Guzzi 1, 2 , Pedro Cerqueira Lima 3 , João Paulo Tavares Damasceno 4 , Mauro Pichorim 5 , Carmen Elisa Fedrizzi 6
Affiliation  

ABSTRACT Haematopus palliatus (American Oystercatcher, locally called ‘piru-piru’) is strictly a coastal bird, which occurs from Canada to the southern end of South America. The species is distributed along the entire Brazilian coast, however, approximately 50% of the population is estimated to be concentrated in the Rio Grande do Sul State, where it reproduces during the austral spring and summer. This study presents the first documented reproduction records of H. palliatus from 2004 to 2019 in northeastern Brazil in: Piauí State, Maramar Beach (02°54’S, 41°28ʹW); Ceará State, Banco dos Cajuais Beach (04°41’S, 37°21ʹW); Rio Grande do Norte State, west of the Amaro (05°05’S, 36°25ʹW) and Salina Soledade (05°06’S, 36°32ʹW) beaches; and Bahia State, Mangue Seco Beach (11°27’S, 37°21ʹW). The reproductive period of these birds initiated at the end of May and extended through mid-October. Their nests are simple and bare, consisting of a shallow cavity in the sand on open areas with or without low vegetation. The inspected nests had from one to three eggs, whose colours and shapes were similar to those observed in other regions. Most eggs were lost, apparently due to predation. Various anthropic threats were observed in the four study areas, especially the circulation of motorised vehicles and the presence of domestic dogs and cattle. Loss of habitat quality and real estate speculation, however, are among the main threats to the future of the species in northeastern Brazil, indicating the importance of proactive measures for the conservation of H. palliatus.

中文翻译:

美洲牡蛎(“piru-piru”),Haematopus palliatus Temminck 1820(鸟类:Haematopodidae)的繁殖,在巴西东北部

摘要 Haematopus palliatus(美洲牡蛎,当地称为'piru-piru')严格来说是一种沿海鸟类,分布于加拿大至南美洲的南端。该物种分布在整个巴西海岸,然而,估计约有 50% 的人口集中在南里奥格兰德州,在南部春季和夏季繁殖。本研究提供了 2004 年至 2019 年巴西东北部皮奥伊州马拉马尔海滩(02°54'S,41°28ʹW)的首个有记载的白头翁繁殖记录;塞阿拉州,Banco dos Cajuais 海滩(04°41'S,37°21ʹW);北里奥格兰德州,位于阿马罗 (05°05'S, 36°25ʹW) 和 Salina Soledade (05°06'S, 36°32ʹW) 海滩以西;和巴伊亚州,Mangue Seco 海滩(11°27'S,37°21ʹW)。这些鸟类的繁殖期从 5 月底开始,一直持续到 10 月中旬。它们的巢穴简单而光秃秃的,在有或没有低植被的开阔地区的沙子上有一个浅洞。被检查的巢有 1 到 3 个蛋,它们的颜色和形状与在其他地区观察到的相似。大多数鸡蛋丢失了,显然是由于捕食。在四个研究区域观察到各种人为威胁,特别是机动车辆的流通以及家养狗和牛的存在。然而,栖息地质量的丧失和房地产投机是巴西东北部该物种未来的主要威胁,这表明采取积极措施保护苍鹭的重要性。在有或没有低植被的开阔区域的沙子中形成一个浅洞。被检查的巢有 1 到 3 个蛋,它们的颜色和形状与在其他地区观察到的相似。大多数鸡蛋丢失了,显然是由于捕食。在四个研究区域观察到各种人为威胁,特别是机动车辆的流通以及家养狗和牛的存在。然而,栖息地质量的丧失和房地产投机是巴西东北部该物种未来的主要威胁,这表明采取积极措施保护苍鹭的重要性。在有或没有低植被的开阔地区的沙子中形成一个浅洞。被检查的巢有 1 到 3 个蛋,它们的颜色和形状与在其他地区观察到的相似。大多数鸡蛋丢失了,显然是由于捕食。在四个研究区域观察到各种人为威胁,特别是机动车辆的流通以及家养狗和牛的存在。然而,栖息地质量的丧失和房地产投机是巴西东北部该物种未来的主要威胁,这表明采取积极措施保护苍鹭的重要性。大多数鸡蛋丢失了,显然是由于捕食。在四个研究区域观察到各种人为威胁,特别是机动车辆的流通以及家养狗和牛的存在。然而,栖息地质量的丧失和房地产投机是巴西东北部该物种未来的主要威胁,这表明采取积极措施保护苍鹭的重要性。大多数鸡蛋丢失了,显然是由于捕食。在四个研究区域观察到各种人为威胁,特别是机动车辆的流通以及家养狗和牛的存在。然而,栖息地质量的丧失和房地产投机是巴西东北部该物种未来的主要威胁,这表明采取积极措施保护苍鹭的重要性。
更新日期:2020-06-17
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