ENDOPARASITES IN BIRDS OF GUARIBAS BIOLOGICAL RESERVE, ATLANTIC FOREST, PARAÍBA STATE, BRAZIL

Abstract This paper describes the findings on endoparasites in Atlantic forest birds at Guaribas Biological Reserve, Paraíba State, Northeast of Brazil. We captured 151 birds with mist nets in ten field expeditions between July 2010 and June 2011 and studied bird endoparasites through blood and excreta samples. Blood samples were collected from 131 birds and excreta were collected from 48 birds. In blood smears, only Haemoproteus columbae was detected in three Columbiformes (2.29%) of the species Columbina talpacoti. Fecal samples were collected from 48 birds, and eggs of nematodes and oocysts of coccidian were detected in 6.25% of the samples: Spirurida (Nematoda) in Lanio cristatus (Thraupidae); Strongyloides sp. (Nematoda) in Momotus momota (Momotidae) and Isospora sp. (Protozoa, Eimeriidae) in Neopelma pallescens (Pipridae). There is limited information about the parasites of wild birds in the remaining fragments of Atlantic forest in Northeast of Brazil; however, such knowledge can help understanding these host-parasite interactions.

摘要：本文报道了巴西东北部帕拉伊巴州瓜里巴斯生物保护区大西洋森林鸟类体内寄生虫（endoparasites）的研究发现。我们于2010年7月至2011年6月间开展10次野外考察，使用雾网（mist nets）共捕获151只鸟类，并通过血液与粪便样本开展鸟类体内寄生虫研究。其中采集131只鸟类的血液样本，48只鸟类的粪便样本。血涂片（blood smears）检查仅在3只棕腹鸠（Columbina talpacoti，鸽形目Columbiformes）体内检出鸽血变原虫（Haemoproteus columbae），检出率为2.29%。本次共收集48份粪便样本，其中6.25%的样本检出线虫卵与球虫卵囊：在红领唐纳雀（Lanio cristatus，裸鼻雀科Thraupidae）体内检出旋尾目（Spirurida，线虫纲Nematoda）虫卵；在棕翠鴗（Momotus momota，翠鴗科Momotidae）体内检出类圆线虫属（Strongyloides sp.）虫卵；在淡额娇鹟（Neopelma pallescens，娇鹟科Pipridae）体内检出等孢球虫属（Isospora sp.，原生动物门艾美耳科Eimeriidae）卵囊。目前针对巴西东北部大西洋森林残存片段中野生鸟类寄生虫的相关研究资料较为有限，但此类研究成果有助于加深对宿主-寄生虫相互作用机制的理解。