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首页> 外文期刊>Journal of Medical Entomology >Community of Chewing Lice (Phthiraptera: Amblycera and Ischnocera) Parasites of Resident Birds at the Archipelago of Sao Pedro and Sao Paulo in Northeast Brazil
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Community of Chewing Lice (Phthiraptera: Amblycera and Ischnocera) Parasites of Resident Birds at the Archipelago of Sao Pedro and Sao Paulo in Northeast Brazil

机译：巴西东北部圣佩德罗和圣保罗群岛上的常住虱子群落（Phthiraptera：Amblycera和Ischnocera）常住鸟类的寄生虫

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摘要

The current study describes the chewing lice community associated with seabird populations resident at the Sao Pedro and Sao Paulo Archipelago in the Atlantic Ocean in Pernambuco State, Brazil. Adults of three species of seabirds were captured using hand-nets for the collection of biometric data and specimens of ectoparasites. In total, 320 birds were examined (120 Sula leucogaster (Boddaert), Brown Booby; 120 Anous stolidus (L.), -Brown Noddy; and 80 Anous minutus Boie, Black Noddy) of which 95% were infested with 8,625 chewing lice, representing eight species of the genera Actornithophilus, Austromenopon, Eidmanniella, Pectinopygus, Quadraceps, and Saemundssonia. On S. leucogaster, Pectinopygus garbei (Pessoa & Guimaraes) was more prevalent and had a mean and median intensity of infestation significantly greater than those recorded for Eidmanniella albescens (Piaget). On the two Noddies, the species of Actornithophilus and Quadraceps were significantly more prevalent and abundant than Austromenopon atrofulvum (Piaget) and Saemundssonia remota Timmermann Most of the louse species had a highly aggregated distribution, with k exponent of the negative binomial distribution ranging from 0.04 to 3.06. A weak but significant correlation was found between the abundance of chewing lice and morphometric variables (body weight, wing, beak, tail, and tarsus lengths). It is possible that high rates of infestation have a negative effect on the morphological characteristics of the hosts, including the health of the plumage. All the lice species collected-except for P. garbei (ex S. leucogaster)-were reported for the first time from Brazilian populations of these seabird species
机译：本研究描述了与巴西伯南布哥州大西洋的圣佩德罗和圣保罗群岛上居住的海鸟种群有关的咀嚼虱子群落。使用手网捕获了三种海鸟的成年，以收集生物特征数据和体外寄生虫标本。总共检查了320羽鸟类（120只苏拉白带（Boddaert），布朗Booby; 120只Anus stolidus（L。），-Brown Noddy;和80只Anous minutus Boie，Black Noddy），其中95％感染了8,625只咀嚼虱，代表Actornithophilus，Austromenopon，Eidmanniella，Pectinopygus，Quadraceps和Saemundssonia属的八种。在S.leucogaster上，Pectinopygus garbei（Pessoa＆Guimaraes）更为普遍，平均侵染强度和中度侵染强度明显高于白纹艾曼氏菌（Piaget）。在这两个点上，Actornithophilus和Quadraceps的种类比Austromenopon atrofulvum（Piaget）和Saemundssonia remota Timmermann的种类更为普遍和丰富，大多数虱子种类具有高度聚集的分布，负二项分布的k指数范围从0.04到2.5。 3.06。在咀嚼虱子的丰度与形态变量（体重，机翼，喙，尾巴和架长度）之间发现了弱但显着的相关性。高感染率可能对宿主的形态特征（包括羽毛的健康）产生负面影响。首次从巴西这些海鸟物种的种群中报告了收集到的所有虱子物种，除了P. garbei（除S. leucogaster外）。

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