Unravelling male advertisement call variability in the brown tree frog (Litoria ewingii) complex by using citizen science

Australian Journal of Zoology, Journal Year: 2024, Volume and Issue: 72(1)

Published: May 7, 2024

In the face of global biodiversity declines, conservation measures are urgently needed. However, our lack knowledge on species’ diversity, distributions and population trends presents a major obstacle, particularly for morphologically cryptic species. Field surveys to gather this information present logistical challenge, but rapid rise citizen science new opportunity, generating huge volumes data rapidly across range. We use from national citizen-science project document distribution advertisement call variability in group five conserved treefrogs. Using 542 male calls entire range species, we found considerable levels acoustic variation both among within Note shape, notes per positions longest shortest were most useful delineate Our research will assist species delineation identification field form basis more accurate understanding diversity brown tree frog complex. also demonstrated utility documenting diversity.

Language: Английский

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Revision of Litoria rothii (Anura: Pelodryadidae) from northern Australia

Zootaxa, Journal Year: 2023, Volume and Issue: 5352(1), P. 73 - 108

Published: Oct. 1, 2023

Litoria rothii is a widespread pelodryadid frog with charismatic “laughing” advertisement call, distributed across the Australian Monsoon Tropics and southern New Guinea. Given its large distribution spanning well-known biogeographic barriers, variation in male calls prevalence of unresolved species complexes fauna, we examine genetic, morphological acoustic diversity from range. Our analyses reveal presence previously unrecognised western parts range L. sensu lato, which describe herein as new species. ridibunda sp. nov. distinguished on basis paraphyly nuclear gene trees everetti Indonesia, colour patterns posterior thigh calls. Compared to rothii, has less contrasting pattern call greater number notes per duration. In particular, magnitude differences between highest where ranges two are proximity north-western Queensland. study further emphasises undiagnosed that remains frogs, even relatively large, charismatic, frequently encountered often share human dwellings.

Language: Английский

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Novel sounds, native responses: exploring the acoustic consequences of Eleutherodactylus johnstonei’s invasion in urban areas

Frontiers in Amphibian and Reptile Science, Journal Year: 2024, Volume and Issue: 2

Published: Nov. 8, 2024

Background Biological invasions pose a critical threat to biodiversity, affecting ecological balance and native species’ communication. Eleutherodactylus johnstonei , an exotic anuran in São Paulo, vocalizes at intensities that could interfere with species, potentially causing acoustic masking. Methods We evaluated the effects of E. johnstonei's calls on vocalizations two Scinax imbegue Physalaemus cuvieri both without spectral overlap invasive species. Field playbacks were conducted using six versions stimuli, including calls, Boana bischoffi (as control), white noise. recorded response behavioral changes S. P. males . Results The did not affect or temporal parameters announcement calls. However, displayed responses such as cessation vocalization movement away from noise source. Additionally, B. bischoffi's influenced call parameters. Discussion Our findings reveal may disrupt anurans’ behavior. This impact varies species context, underlining need for further research interactions across different frequencies environments fully understand interference.

Language: Английский

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