Effect of altitude and spatial heterogeneity on the host-parasite relationship in anurans from a remnant humid forest in the brazilian semiarid

de Oliveira, Cicero Ricardo; Gonçalves-Sousa, José Guilherme; de Carvalho, Elvis Franklin Fernandes; Ávila, Robson Waldemar; Borges-Nojosa, Diva Maria

doi:10.1007/s00436-023-07965-6

Cited by 1 publication

(2 citation statements)

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“…Janovy et al (1992) state that the presence of a parasitic species in a host species is strongly influenced by evolutionary factors. However, the infection data obtained in the present study suggest an ecological influence on the observed infection pattern, corroborating the studies by Sampaio et al (2022) and Oliveira et al (2023). In the case of acanthocephalans, hosts from a given locality are probably more related ecologically due to similarities in diet and habitat than phylogenetically (McAlpine 1997;Kennedy 2006), which should explain the presence of Centrorhynchus sp.…”

Section: Discussionsupporting

confidence: 91%

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Pattern of anuran infection by acanthocephalans from the Cerrado, Northeastern Brazil with a summary for South America

dos Santos,

Teixeira,

do Nascimento

et al. 2024

J. Helminthol.

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In Brazil, acanthocephalans parasitise anurans in several biomes. In the present study, we performed an analysis of acanthocephalan infections across 175 anuran individuals from the Cerrado biome, belonging to ten species: Boana raniceps, Pithecopus hypochondrialis, Scinax fuscomarginatus, Scinax x-signatus, Leptodactylus pustulatus, Leptodactylus macrosternum, Leptodactylus vastus, Physalaemus cuvieri, Adenomera hylaedactyla, and Elachistocleis piauiensis. We also verified the specificity of the parasites using the STD* index. Additionally, we conducted a survey of acanthocephalan infection in anurans in South America. The studied assemblage in the Brazilian Cerrado presented 57 parasitised hosts of 175 specimens (overall prevalence: 32.6%). In total, 437 acanthocephalans cystacanths were recorded, among which 286 presented the same morphotype but could not be identified, 148 belonged to the genus Centrorhynchus, and three belonged to Oncicola. Unidentified acanthocephalans had a higher prevalence in L. vastus (53.85%) and the highest intensity was in L. pustulatus (17±16). The highest prevalence of Centrorhynchus sp. was in the species S. fuscomarginatus (28.57%), while the highest intensity was observed in L. vastus (111). The taxon Oncicola sp. it had a prevalence of 3.23% and an intensity of 3 only in S. x-signatus. The highest specificity was recorded for Oncicola sp. (STD*= 1), whereas the lowest was found in Centrorhynchus sp. (STD*= 2.21). Finally, according to the survey for South America, we found ten records of acanthocephalan taxa parasitizing 58 species of anurans distributed in seven countries (Brazil with the most records).

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Section: Discussionsupporting

confidence: 91%

“…(2022) and Oliveira et al . (2023). In the case of acanthocephalans, hosts from a given locality are probably more related ecologically due to similarities in diet and habitat than phylogenetically (McAlpine 1997; Kennedy 2006), which should explain the presence of Centrorhynchus sp.…”

Section: Discussionmentioning

confidence: 99%