Durden L A, Klompen J S, Keirans J E
Institute of Arthropodology and Parasitology, Georgia Southern University, Statesboro 30460.
J Parasitol. 1993 Apr;79(2):283-6.
Six species of parasitic arthropods were collected from 12 opossums (Didelphis virginiana), 8 species were obtained from 28 cotton rats (Sigmodon hispidus), and 4 species were collected from 10 cotton mice (Peromyscus gossypinus) from Merritt Island, Brevard County, Florida. The flea Polygenis gwyni was the only parasite that infested all 3 host species, and it was present in very high densities (mean intensity = 73.7) on the opossums. The American dog tick, Dermacentor variabilis, and the tropical rat mite, Ornithonyssus bacoti, both infested 2 host species but were principally associated with opossums and cotton rats, respectively. All remaining arthropod species were confined to single host species, suggesting host specificity by these parasites. The atopomelid mite Didelphilichus serrifer and the myobiid mite Radfordia sigmodontis constitute new state records for Florida. The reptile tick Amblyomma dissimile is recorded from a cotton mouse for the first time; Merritt Island may represent the most northerly location for viable populations of this tick in the U.S.A.
从佛罗里达州布雷瓦德县梅里特岛的12只负鼠（弗吉尼亚负鼠）身上采集到6种寄生节肢动物，从28只棉鼠（刚毛棉鼠）身上获得8种，从10只棉鼠（戈氏白足鼠）身上采集到4种。蚤类的格氏多蚤是唯一寄生于所有3种宿主的寄生虫，在负鼠身上的密度非常高（平均强度 = 73.7）。美洲犬蜱（变异革蜱）和热带鼠螨（柏氏禽刺螨）都寄生于2种宿主，但分别主要与负鼠和棉鼠相关。其余所有节肢动物物种都局限于单一宿主物种，表明这些寄生虫具有宿主特异性。顶叶螨属的锯齿负鼠螨和肌螨科的西格棉鼠肌螨是佛罗里达州的新记录物种。爬行类蜱（异盾盲蜱）首次在一只棉鼠身上被记录；梅里特岛可能是这种蜱在美国有生存种群的最北地点。
