Bittencourt Emerson Brum, Rocha Carlos Frederico Duarte
Laboratório de Ixodides, Departamento de Entomologia, Instituto Oswaldo Cruz-Fiocruz, 21045-900 Rio de Janeiro, RJ, Brasil.
Mem Inst Oswaldo Cruz. 2003 Sep;98(6):793-8. doi: 10.1590/s0074-02762003000600015. Epub 2003 Oct 29.
The analyses of the ectoparasite species associated with a small mammal community on Ilha Grande, a coastal island in southern of the state of Rio de Janeiro, Brazil, evaluated the level of host-ectoparasite specificity. Was used the Jaccard index for qualitative data to analyse the similarity. The lowest value of similarity occurred between Proechimys iheringi and Marmosops incanus and between Sciurus aestuans and Nectomys squamipes (Cj=0.08) and the highest between P. iheringi and Oxymycterus sp. (Cj=0.33). This index showed a low value of similarity across the ectoparasite community. The only exception from this pattern of high host specificity occurred with P. iheringi and Oxymycterus sp., which shared five species of ectoparasites. The similarity values, for most of the cases, is smaller than 0.2.
对巴西里约热内卢州南部沿海岛屿大伊利亚岛上一个小型哺乳动物群落相关的外寄生虫物种进行的分析，评估了宿主 - 外寄生虫特异性水平。使用贾卡德指数对定性数据进行分析以评估相似性。相似性最低值出现在伊氏稻鼠和灰蓬尾袋鼬之间以及松鼠猴和鳞尾木鼠之间（Cj = 0.08），而伊氏稻鼠和奥氏鼠属之间的相似性最高（Cj = 0.33）。该指数表明整个外寄生虫群落的相似性值较低。这种高宿主特异性模式的唯一例外是伊氏稻鼠和奥氏鼠属之间，它们共有五种外寄生虫。在大多数情况下，相似性值小于0.2。
