Potential hotspots of amphibian roadkill risk in Spain

Morelli, Federico; Benedetti, Yanina; Szkudlarek, Michał; Zeid, Farah Abou; Delgado, Juan D.; Kaczmarski, Mikołaj

doi:10.1016/j.jenvman.2023.118346

Cited by 4 publications

(1 citation statement)

References 52 publications

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“…The level of coincidence between the observed and potential distributions is projected to decrease to a range of 50% to 53% in 2041-2070 [51]. Other anthroponotic factors, such as roadkill rates, affect the populations of this amphibian [52].…”

Section: Discussionmentioning

confidence: 99%

New Data on the Larval Stages of Leptophallus nigrovenosus (Digenea, Plagiorchiata)

Poonlaphdecha,

Ribas,

Martínez-Silvestre

et al. 2024

Animals

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(1) Background: Leptophallus nigrovenosus, an esophageal parasite that primarily affects water snakes of the genus Natrix, has a known life cycle that involves snail and amphibian hosts. However, the biological aspects, chaetotaxic patterns, and pathogeny of this parasite in its hosts have not been fully elucidated. (2) Methods: Snails (Planorbarius metidjensis) were collected in Spain and examined for cercaria emergence. The larvae were used to experimentally infect Salamandra salamandra, and metacercariae were isolated. Their chaetotaxy was studied using microscopy and scanning electron microscopy. The eye histology was also examined. (3) Results: The cercariae displayed distinctive morphological characteristics. The results of this study revealed three types of ciliated sensory papillae on the cercarial teguments, suggesting an adaptation for host detection and orientation. The metacercariae isolated from subcutaneous tissues showed oval bodies covered in spines. The chaetotaxy patterns matched those of Leptophallinae species. This is the first report of the presence of L. nigrovenosus in the snail P. metidjensis. Additionally, this study detected metacercariae in the eyes of S. salamandra, emphasizing the need for further research on trematode infections in amphibian eyes. (4) Conclusions: Members of the genus Salamandra can serve as secondary intermediate hosts for L. nigrovenosus, and the presence of metacercariae in amphibian eyes may have implications for the survival and habitat management of these amphibians. Understanding this parasite’s prevalence, transmission dynamics, and impacts on host populations is crucial for conservation strategies.

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Section: Discussionmentioning

confidence: 99%