Centro de Estudios Parasitológicos y de Vectores (CONICET, UNLP), Bvd. 120 s/n entre 60 y 64, 1900 La Plata, Buenos Aires, Argentina.
Dirección Regional Patagonia Norte, Administración de Parques Nacionales (APN - CONICET), 8400 S.C. de Bariloche, Argentina; Centro de Estudios Aplicados a la Conservación (CENAC), Parque Nacional Nahuel Huapi (APN), 8400 S.C. de Bariloche, Argentina.
Acta Trop. 2021 Jul;219:105911. doi: 10.1016/j.actatropica.2021.105911. Epub 2021 Apr 6.
In Argentina, quantitative information on the composition and structure of assemblages of arthropod parasites in Xenarthra is scarce. The aim of this study was to describe and compare the community of arthropod parasites of Chaetophractus villosus and Zaedyus pichiy in the Argentinean Patagonia. A total of 1300 ectoparasites (1224 fleas and 76 ticks) were collected from both host species. Seven different species were found, namely Phthiropsylla agenoris, Malacopsylla grossiventris, Hectopsylla broscus, Tunga penetrans, Tunga perforans (Siphonaptera), Amblyomma pseudoconcolor and Amblyomma auricularium s.l. (Ixodida). Four species were present in both host armadillos (P. agenoris, M. grossiventris, H. broscus and A. pseudoconcolor). Phthiropsylla agenoris was the most prevalent and abundant ectoparasite showing significant differences in prevalences, mean intensities and mean abundance. Malacopsylla grossiventris only showed significant differences in mean intensity. The structure and composition of the ectoparasite assemblage and the high values of ectoparasites aggregation recorded in the Patagonian armadillos strongly suggest that these associations are stable throughout their geographical distribution.
在阿根廷，有关异关节总目节肢动物寄生虫类群的组成和结构的定量信息十分匮乏。本研究旨在描述和比较巴塔哥尼亚地区犰狳科中犰狳属（Chaetophractus villosus）和毛犰狳属（Zaedyus pichiy）节肢动物寄生虫群落。共从这两个宿主物种中收集了 1300 只外寄生虫（1224 只跳蚤和 76 只蜱虫）。发现了 7 种不同的物种，分别为 Phthiropsylla agenoris、Malacopsylla grossiventris、Hectopsylla broscus、Tunga penetrans、Tunga perforans（蚤目）、 Amblyomma pseudoconcolor 和 Amblyomma auricularium s.l.（蜱目）。有 4 种寄生虫存在于这两种犰狳宿主中（P. agenoris、M. grossiventris、H. broscus 和 A. pseudoconcolor）。 Phthiropsylla agenoris 是最普遍和丰富的外寄生虫，在流行率、平均强度和平均丰度方面存在显著差异。M. grossiventris 仅在平均强度方面存在显著差异。记录到的巴塔哥尼亚犰狳外寄生虫群的结构和组成以及外寄生虫的高度聚集，强烈表明这些寄生虫与宿主的联系在其地理分布范围内是稳定的。
