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Territorial song frequency does not signal body size in a song-learning passerine [PDF]
Scientific ReportsThe negative relationship between song frequency and body size in birds is well-established across species. However, whether song frequency reliably signals body size and individual quality requires more detailed within-species comparisons, particularly ...
Lia Zampa +3 more
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Ecology and Evolution, 2022 Characteristics of birdsong, especially minimum frequency, have been shown to vary for some species between urban and rural populations and along urban–rural gradients.
Dustin E. Brewer, Adam M. Fudickar
doaj +2 more sources
Mid-frequency song and low-frequency calls of sei whales in the Falkland Islands
Royal Society Open Science, 2022 Although sei whales ( Balaenoptera borealis ) are distributed throughout the globe, their behaviour and vocal repertoire are poorly described. We used passive acoustic monitoring to describe the vocal behaviour of sei whales in the Falkland Islands, between December 2018 and April 2019.
Salvatore Cerchio, Caroline R Weir
exaly +4 more sources
On the relation between loudness and the increased song frequency of urban birds. [PDF]
Anim Behav, 2011 Songbirds often sing at higher frequency (pitch) in urban, noise-polluted areas, which reduces acoustic masking by low-frequency anthropogenic noise. Such frequency shifts, however, are less efficient at overcoming background noise than simply singing louder.
Cardoso GC, Atwell JW.
europepmc +4 more sources
Avian ResearchUrban environments have challenging characteristics for bird acoustic communication. High levels of anthropogenic noise, as well as vegetation structure (e.g., in urban parks), can potentially affect the song frequency characteristics of several bird ...
Xhareni Díaz-Lezama +3 more
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The Effects of Anthrophony on Song Traits in European Robins (Erithacus rubecula) [PDF]
Ecology and EvolutionThe increasing urbanisation has important impacts on natural soundscapes, through habitat loss and noise pollution (anthrophony), affecting acoustic communication in wildlife.
Marzia Golini, Matthew Bell
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Urban birdsongs: higher minimum song frequency of an urban colonist persists in a common garden experiment [PDF]
Animal Behaviour, 2020 Dustin G Reichard +2 more
exaly +2 more sources
Aircraft sound exposure leads to song frequency decline and elevated aggression in wild chiffchaffs [PDF]
Journal of Animal Ecology, 2019 Karolina Kluk, Selvino R de Kort
exaly +2 more sources
Contingency and determinism in the evolution of bird song sound frequency [PDF]
Scientific Reports, 2021 AbstractSexual signals are archetypes of contingent evolution: hyper-diverse across species, often evolving fast and in unpredictable directions. It is unclear to which extent their evolutionary unpredictability weakens deterministic evolution, or takes place bounded by deterministic patterns of trait evolution.
Friis, Jakob I. +2 more
openaire +5 more sources
Using Acoustic Data Repositories to Study Vocal Responses to Playback in a Neotropical Songbird
Birds, 2023 Birds may alter song structure in response to territorial challenges to convey information about aggressive intent or fighting ability. Professional and amateur ornithologists upload daily many birdsong recordings into acoustic data repositories, usually
Pietra Oliveira Guimarães +4 more
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