Avian acoustic communication: Understanding of peripheral and central neural systems with ecological adaptations

Avian Research, Journal Year: 2025, Volume and Issue: unknown, P. 100248 - 100248

Published: April 1, 2025

Language: Английский

Response of the emerald‐spotted wood‐dove to the song of conspecific males and sympatric congeners

Ethology, Journal Year: 2024, Volume and Issue: 130(10)

Published: Aug. 7, 2024

Abstract Bird song contains crucial information that enables recognition of conspecific individuals from a distance, which facilitates subsequent complex behaviors related to mate attraction and rival deterrence. Loud broadcast signals non‐learning bird species are usually treated as less than songs Oscines, but several studies have revealed learning is not necessary for the evolution signaling. Here, we focused on African wood‐dove produces superficially simple consisting short notes organized into two parts different amplitude. Our model was population emerald‐spotted wood‐doves ( Turtur chalcospilos ) live in same area physically vocally similar blue‐spotted afer ). We tested responses male playbacks simulating territorial intrusion. used focal congener, types artificially mixed with belonging or congeneric species, control song. aimed assess (i) whether responds only its own species' exhibits interspecific territoriality, (ii) part responsible coding identity. found responded strongly playback, almost exclusively approached playback their Additionally, caused decrease rate during an increase output after playback. results suggest able discriminate those congeners do exhibit interspecies territoriality. were unable identify single codes species‐specificity, any kind did substantially responsiveness comparison congener control. discuss these context current hypotheses regarding territoriality species‐identity coding.

Language: Английский

No evidence for song evolution influencing speciation patterns in honeyeaters

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: June 29, 2023

ABSTRACT Birdsongs are well-known acoustic signals and thought to play a key role in sexual selection. Despite the established of birdsong selection reproductive isolation at microevolutionary scales, its macroevolutionary impacts on clade diversification remain largely unexplored. Here, we test hypothesis that shifts song evolution influence using honeyeaters, diverse songbirds restricted Australasia. Using data for 163 honeyeater species, employ phylogenetic comparative models trait detect optima use hidden state-dependent speciation extinction assess these diversification. Contrary our expectations, find no correlation between rates, suggest other factors role. Overall, do not significantly contribute likely due ecological influencing this group including range size dispersal ability.

Language: Английский