Temporal partitioning of Bullacris unicolor (Orthoptera: Pneumoridae) calling activity to avoid predation DOI

Robyn Manuel,

Tarné Johannes,

Rekha Sathyan

et al.

Bioacoustics, Journal Year: 2023, Volume and Issue: 32(4), P. 373 - 386

Published: Jan. 30, 2023

Ecological interactions, including competition, predation, and environmental conditions, may significantly impact acoustic signalling behaviour. Here we characterise nocturnal patterns in the bladder grasshopper Bullacris unicolor relate this to biotic abiotic factors, thus providing insights into ecological drivers of Passive recorders monitored calling activity focal species, competitors, predatory bats across distribution B. unicolor. Results indicate that calls preferentially at certain times night, but peak period varies geographic range. There was a strong relationship between bat activity. populations further north showed an overall avoidance echolocation call period, whereas south overlapping periods observed. Bats northern sites distinct early night reduce predation risk by shifting later night. In contrast, were active throughout southern did not delay region its distribution, although species shift slightly overlap with co-existing pneumorid species.

Language: Английский

Call-timing plasticity of a treefrog in response to noise DOI
Chunwen Chang, Feng-Chun Lin, J.-C. Lin

et al.

Animal Behaviour, Journal Year: 2024, Volume and Issue: 214, P. 137 - 145

Published: July 8, 2024

Language: Английский

Citations

0
Species Assembly of Highland Anuran Communities in Equatorial Africa (Virunga Massif): Soundscape, Acoustic Niches, and Partitioning DOI Creative Commons
Ulrich Sinsch, Deogratias Tuyisingize, J. Maximilian Dehling

et al.

Animals, Journal Year: 2024, Volume and Issue: 14(16), P. 2360 - 2360

Published: Aug. 15, 2024

The soundscape is a complex arrangement of sounds originating from animals and the environment. It considered reliable proxy for ecosystem niche structure at community level. Acoustic communities anuran species include advertising males, which compete in acoustic space conspecific females. Stochastic theory predicts that all local niches are occupied, species-saturated. niches, spectral temporal call diel seasonal patterns activity, similar breadth with small overlap. We tested these predictions four inhabiting pristine wetlands 2546-3188 m a.s.l. Volcanoes National Park, Rwanda. sampled 74 days hourly 5 min recordings (September 2019-March 2020) using passive automated monitoring devices (Songmeter SM4). identified based on advertisement features measured activity as calls per minute. included 4-6, depending wetland structure, shared stock three (

Language: Английский

Citations

0
Temporal partitioning of Bullacris unicolor (Orthoptera: Pneumoridae) calling activity to avoid predation DOI

Robyn Manuel,

Tarné Johannes,

Rekha Sathyan

et al.

Bioacoustics, Journal Year: 2023, Volume and Issue: 32(4), P. 373 - 386

Published: Jan. 30, 2023

Ecological interactions, including competition, predation, and environmental conditions, may significantly impact acoustic signalling behaviour. Here we characterise nocturnal patterns in the bladder grasshopper Bullacris unicolor relate this to biotic abiotic factors, thus providing insights into ecological drivers of Passive recorders monitored calling activity focal species, competitors, predatory bats across distribution B. unicolor. Results indicate that calls preferentially at certain times night, but peak period varies geographic range. There was a strong relationship between bat activity. populations further north showed an overall avoidance echolocation call period, whereas south overlapping periods observed. Bats northern sites distinct early night reduce predation risk by shifting later night. In contrast, were active throughout southern did not delay region its distribution, although species shift slightly overlap with co-existing pneumorid species.

Language: Английский

Citations

0