来自巴西北大西洋森林的东北姬蛙（无尾目，姬蛙科）体内寄生虫
Endoparasites of Adelophryne nordestina (Anura, Eleutherodactylidae) from the Northern Atlantic Forest of Brazil.
作者信息
de Oliveira Cicero Ricardo, de Moura Laiana Carla, Dos Santos Ednilza Maranhão, Roberto Igor Joventino
机构信息
Instituto de Formação de Educadores, Laboratório de Biologia e Ecologia de Vertebrados, Universidade Federal do Cariri, Brejo Santo, CE, 63.260-000, Brasil.
Programa de Pós-Graduação em Biodiversidade e Conservação, Universidade Federal Rural de Pernambuco, Unidade Acadêmica de Serra Talhada, Av. Gregório Ferraz Nogueira, s/n, Serra Talhada, PE, 56909-535, Brasil.
出版信息
Acta Parasitol. 2025 Jun 2;70(3):123. doi: 10.1007/s11686-025-01060-9.
PURPOUSE
We aimed to investigate the diversity of endoparasites in the anuran Adelophryne nordestina and the influence of morphological characteristics and seasonality on the prevalence and composition of parasites.
METHODS
This study was carried out in the Professor João Vasconcelos Sobrinho Municipal Natural Park (PNPJV), State of Pernambuco, Brazil, where 85 individuals of A. nordestina were collected from December 2021 to September 2022.
RESULTS
Among 85 specimens of A. nordestina, 20 were infected with at least one species of endoparasite (overall prevalence: 23.3%). We recorded a total of 53 helminths distributed among three taxa. The lung was the organ with the highest number of parasites (47 individuals, 89%). No correlation was found between the parasites and the body size (SVL) of the hosts (r2 = 0.012; p = 0.561). Regarding the prevalence of infected individuals, parasitism was related to the sex of the hosts (F = 2.656; p = 0.002), with females being more parasitized than males (r2 = 0.013; p = 0.023). As for seasonality, we observed a positive relationship with the rainy season (p = 0.008). We also found that parasite richness was directly influenced by local rainfall in each month of sampling (r2 = 0.861; p = 0.0003); however, we did not observe a relationship between parasite abundance and humidity (r2 = 0.017; p = 0.656) and/or temperature (r2 = 0.028; p = 0.354).
CONCLUSIONS
The parasite composition of A. nordestina follows the same pattern as its congeners, with a predominance of nematodes with a monoxenic life cycle.
目的
我们旨在研究东北姬蛙（Adelophryne nordestina）体内内寄生虫的多样性，以及形态特征和季节性对寄生虫患病率和组成的影响。
方法
本研究在巴西伯南布哥州的若昂·瓦斯康塞洛斯·索布里尼奥教授市立自然公园（PNPJV）进行，于2021年12月至2022年9月收集了85只东北姬蛙个体。
结果
在85只东北姬蛙标本中，20只感染了至少一种内寄生虫（总体患病率：23.3%）。我们共记录了53条分布在三个类群中的蠕虫。肺部是寄生虫数量最多的器官（47只个体，89%）。未发现寄生虫与宿主的体型（体长）之间存在相关性（r2 = 0.012；p = 0.561）。关于受感染个体的患病率，寄生虫感染与宿主性别有关（F = 2.656；p = 0.002），雌性比雄性更容易被寄生（r2 = 0.013；p = 0.023）。至于季节性，我们观察到与雨季呈正相关（p = 0.008）。我们还发现，在每个采样月份，寄生虫丰富度直接受当地降雨量影响（r2 = 0.861；p = 0.0003）；然而，我们未观察到寄生虫丰度与湿度（r2 = 0.017；p = 0.656）和/或温度（r2 = 0.028；p = 0.354）之间存在关系。
结论
东北姬蛙的寄生虫组成与其同属物种遵循相同模式，以单宿主生命周期的线虫为主。
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