Esbérard C E L, Astúa D, Geise L, Costa L M, Pereira L G
Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil.
Braz J Biol. 2012 Aug;72(3):617-21. doi: 10.1590/s1519-69842012000300027.
Ecological aspects related to parasitism are one of the less studied issues in parasitology research, and the scarce evidence available supports that younger specimens present higher infestation rates. The purpose of this work is to establish if higher infestation rates are observed in nursing females and their young captured inside their roost. Bats were captured inside a shelter located in RPPN Estação Veracel, Santa Cruz de Cabrália, Bahia state, Brazil. A total of 56 individuals of Carollia perspicillata were observed, 17 captured inside the roost during the day and 39 in trails at night. Captures of C. perspicillata during the day in a shelter yielded similar infestation rates to bats netted in trails and higher prevalence. The hypothesis that young were more infected was confirmed, based on the higher infestation of nursing females with neonates and on the significant inverse relation between body weight and number of parasites in young and subadults.
与寄生现象相关的生态学方面是寄生虫学研究中较少被研究的问题之一，现有的稀缺证据表明较年轻的样本具有更高的感染率。这项工作的目的是确定在栖息处捕获的哺乳雌性蝙蝠及其幼崽中是否观察到更高的感染率。蝙蝠是在巴西巴伊亚州圣克鲁斯-卡布拉利亚市RPPN埃斯塔ção韦拉塞尔的一个庇护所内捕获的。总共观察到56只秘鲁叶鼻蝠，其中17只是白天在栖息处捕获的，39只是夜间在小径上捕获的。白天在庇护所中捕获的秘鲁叶鼻蝠的感染率与在小径上用网捕获的蝙蝠相似，且患病率更高。基于哺乳雌性蝙蝠及其幼崽的更高感染率以及幼崽和亚成体体重与寄生虫数量之间显著的负相关关系，幼崽更容易感染这一假设得到了证实。
