Soundscapes and Vibroscapes – Encyclopedia of Biodiversity, 3rd Ed.

Elsevier eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 408 - 431

Published: Oct. 18, 2023

Language: Английский

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A preliminary comparison of a songbird’s song repertoire size and other song measures between an urban and a rural site

Ecology and Evolution, Journal Year: 2022, Volume and Issue: 12(2)

Published: Feb. 1, 2022

Characteristics of birdsong, especially minimum frequency, have been shown to vary for some species between urban and rural populations along urban-rural gradients. However, few comparisons song complexity-and none that we know based on the number distinct types in repertoires-have occurred. Given potential ability repertoire size indicate bird condition, primarily sought determine if displayed by Song Sparrows (

Language: Английский

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Vocal Response of Oriental Magpie Robin (Copsychus saularis) to Urban Environmental Factors in Peninsular Malaysia

Sains Malaysiana, Journal Year: 2019, Volume and Issue: 48(10), P. 2061 - 2069

Published: Oct. 31, 2019

Anthropogenic noise and changes in environmental gradients resulted from urbanisation have been shown to alter vocalisation of urban birds previous studies.This study examined the Oriental Magpie Robin (Copsychus saularis; locally known as Murai Kampung) relation anthropogenic factors urban, suburban rural areas Peninsular Malaysia.We measured four ambient (i.e.ambient noise, temperature, relative humidity light intensity) two landscape (i.e.distance building distance major roads) between January June 2017 six locations.A total 147 recordings comprising territorial songs bird were obtained transcribed into spectrograms.Six parameters, namely low frequency, high frequency ranges, length strophe, number elements per time interval strophes derived spectrograms for each recording.In areas, was found increased significantly compared those recorded areas.The difference temperature environment had led both single interaction effects towards Robin's song i.e. strophe.The results evidenced ability regulating altering their structure according its surrounding environment.This implies vocal plasticity which is important ensuring efficiency transmission likely explain why less susceptible urbanisation.

Language: Английский

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Singing under glass: rapid effects of anthropogenic habitat modification on song and response behaviours in an isolated house sparrow Passer domesticus population

Journal of Avian Biology, Journal Year: 2019, Volume and Issue: 51(3)

Published: Dec. 20, 2019

Anthropogenic noise pollution and the introduction of novel infrastructure can impose strong selective pressures on avian communication by affecting efficacy with which acoustic signals are transmitted received. Many species have now been shown to sing at higher frequencies in noisy urban environments. However, few studies investigated effects signal modification response behaviours receivers, fewer still able indicate timescale over these changes pitch occurred. We compare vocal between house sparrows Passer domesticus that reside within world's largest, single‐span glasshouse (completed year 2000), directly outside this glasshouse, open farmland. The contrasts both acoustically physically external environment, low frequency background being significantly louder inside than outside. show minimum song was surrounding farm habitat. Using playback, we also found birds reacted more strongly playbacks from habitat they did playback degree difference is similar for other bird rural environments, demonstrating such behavioural differences may arise a relatively short time period (14 yr case).

Language: Английский

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Comparing the Acoustic Behaviour of the Eastern Indian Ocean Pygmy Blue Whale on Two Australian Feeding Grounds

Acoustics Australia, Journal Year: 2021, Volume and Issue: 49(2), P. 331 - 344

Published: April 4, 2021

Language: Английский

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