Cabus Oitaven Leonardo Pessoa, da Silva Ribeiro Felipe, de Moura Geraldo Jorge Barbosa, de Oliveira Jaqueline Bianque
Programa de Pós-Graduação em Ecologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, CEP 52171-900, Recife, Pernambuco, Brazil; Laboratório de Estudos Herpetológicos e Paleoherpetólogicos (LEHP), Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, CEP 52171-900, Recife, Pernambuco, Brazil.
Laboratório de Estudos Herpetológicos e Paleoherpetólogicos (LEHP), Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, CEP 52171-900, Recife, Pernambuco, Brazil.
Acta Trop. 2019 Apr;192:123-128. doi: 10.1016/j.actatropica.2019.02.010. Epub 2019 Feb 12.
Gymnodactylus darwinii is an endemic lizard from Atlantic Rainforest. Ecological aspects of your parasitic fauna are still unknown. Therefore, the goal of the present study was to know the composition of parasitic fauna of G. darwinii in an Atlantic Rainforest fragment, as well to test the influence of the size, sex and seasonality on parasitological indices. The study was carried out in two conservation units: Mata do Camucim and Mata do Tapacurá, both located in the municipality of São Lourenço da Mata, Pernambuco state, northeast region of Brazil. Sixty-five specimens were collected, of which 39 (569%) were parasitized by cystacanths of Acanthocephala (prevalence 43%; mean intensity 4 ± 9.9; mean abundance 3.82 ± 7.87), Geckobia sp. (Acari, Pterygosomatidae) (prevalence 30.7%; mean intensity 4 ± 15.0; mean abundance 3.74 ± 9.54), Physaloptera sp. larvae (Nematoda, Physalopteridae) (prevalence 4.6%; mean intensity 1 ± 0.47; mean abundance 0.06 ± 0.47) and Paradistomum rabusculum (Trematoda, Dicrocoeliidae) (prevalence 1.2%; mean intensity 1; mean abundance 0.02). Acanthocephalans presented a significant relation with the animal length (r² = 0.31, p = 0.006, n = 28). Infestation by Geckobia sp. was more frequent during the dry season (BLM: p = 0.001), while the infection by Acanthocephalans was frequent in dry and rainy seasons, with no significant variation (BLM: p = 0.78). In addition, the most prevalent parasites showed no significant difference in relation to sex: males and females showed similar infestation intensity by Geckobia sp. (BLM: p = 0.31) and infection by Acanthocephala (BLM: p = 0.34). This is the first study about the parasitic ecology of G. darwinii, representing a significant contribution to the conservation of this species and the ecosystem in which they inhabit.
达尔文裸趾虎是一种来自大西洋雨林的特有蜥蜴。其寄生动物群的生态方面仍然未知。因此，本研究的目的是了解大西洋雨林片段中达尔文裸趾虎寄生动物群的组成，并测试体型、性别和季节性对寄生虫学指标的影响。该研究在两个保护单位进行：卡穆辛森林和塔帕库拉森林，均位于巴西东北部伯南布哥州圣洛伦索达马塔市。共收集了65个标本，其中3种寄生虫寄生在39个（56.9%）标本上：棘头虫的囊尾蚴（感染率43%；平均感染强度4±9.9；平均丰度3.82±7.87）、裸趾虎螨属（蜱螨亚纲，翼螨科）（感染率30.7%；平均感染强度4±15.0；平均丰度3.74±9.5）、泡翼线虫幼虫（线虫纲，泡翼科）（感染率4.6%；平均感染强度1±0.47；平均丰度0.06±0.47）和粗短双腔吸虫（吸虫纲，双腔科）（感染率1.2%；平均感染强度1；平均丰度0.02）。棘头虫与动物体长呈显著相关（r² = 0.31，p = 0.006，n = 28）。裸趾虎螨属的感染在旱季更为频繁（广义线性模型：p = 0.001），而棘头虫的感染在旱季和雨季都很常见，无显著差异（广义线性模型：p = 0.78）。此外，最常见的寄生虫在性别方面无显著差异：雄性和雌性被裸趾虎螨属感染的强度相似（广义线性模型：p = 0.31），被棘头虫感染的情况也相似（广义线性模型：p = 0.34）。这是关于达尔文裸趾虎寄生生态学的首次研究，对该物种及其栖息生态系统的保护具有重要意义。
