The demographic drivers of cultural evolution in bird song: a multilevel study DOI Creative Commons
Nilo Merino Recalde, Andrea Estandía, Sara Keen

et al.

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

Published: Dec. 1, 2023

Summary Social learning within communities sometimes leads to behavioural patterns that persist over time, which we know as culture. Examples of culture include learned bird and whale songs, cetacean feeding techniques, avian mammalian migratory routes. Shaped by neutral selective forces, animal cultures evolve dynamically lead cultural traditions differ greatly in their diversity stability. These traits can influence individual group survival, population structure, even inform conservation efforts, underscoring the importance understanding how other processes interact with social shape Although impact mechanisms biases has been extensively explored, role demographic factors—such turnover, immigration, age structure—on evolution received theoretical attention but rarely subject empirical investigation natural populations. Doing so requires very complete trait sampling detailed life history data, are hard acquire combination. To this end, built a multi-generational dataset containing 109,000 songs from >400 individuals Great Tits ( Parus major ), study using deep metric model re-identify quantify song similarity. We show variation at small spatial scales takes place potential strongly pace outcome evolution. For example, distributions skewed towards older associated slower change increased diversity, while higher local turnover elevated rates change. Our analyses support expectations for key resulting behaviour determining evolution, emphasize these species-specific factors such timing acquisition. Implications extend large-scale dynamics formation dialects or traditions.

Language: Английский

The demographic drivers of cultural evolution in bird song DOI Creative Commons
Nilo Merino Recalde, Andrea Estandía, Sara Keen

et al.

Current Biology, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Highlights•Analyzed over 100,000 great tit songs using deep learning to study vocal culture•Tested if local demographic variation and processes impact song culture in the wild•Showed that age, dispersal, turnover affect cultural diversity changeSummarySocial can give rise shared behavioral patterns persist as within animal communities,1,2 such bird whale cetacean feeding techniques.3,4,5 These traits evolve6,7,8,9 individual survival, population structure, conservation efforts.10 Although theoretical work indicates processes—like turnover, immigration, age structure—significantly influence evolution,11,12,13 empirical evidence from natural populations is limited. Using metric analyze >400 repertoires tits (Parus major), we show affects cultures small spatial temporal scales where occurs. Within-population dispersal homogenizes culture, immigrant birds adopt while increasing neighborhood through larger repertoires. Birds of similar tend have more repertoires, which provides change, with mixed-age neighborhoods showing higher diversity. We estimate a main driver change its pace also moderated by structure. findings support expectations regarding key role evolution highlighting their interaction species-specific factors timing mode acquisition.Graphical abstract

Language: Английский

Citations

0
Close Males Sing With Dissimilar Minimum Frequency and Repertoire Size in a Wild Passerine DOI Creative Commons
Mónika Jablonszky, Miklós Laczi, Gergely Nagy

et al.

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

ABSTRACT The position occupied in social networks influences the success of individuals many animal species. However, associations between bird song (an important means communication) and relative remained understudied. Such are expected because neighbors can learn elements from each other or change their songs due to competition, also be related individual traits determining network positions. We investigated these phenomena males collared flycatcher ( Ficedula albicollis ), a passerine with complex intense territorial interactions. Relying on 19 years recordings, we used multiple reflecting spectral temporal characteristics complexity songs, as well syllable composition, investigate if similarity is associated neighbor networks. examined whether birds settle down an age‐dependent manner (as age linked quality) nonrandom spatial distribution affected by proportion immigrants, young birds, number displaying males. found that minimum frequency repertoire size differed, but this pattern was not shaped predictors. Therefore, our results highlight need study communication environment together. fact neighboring tend sing differently respect some suggests flexibly adjusted based performance conspecifics.

Language: Английский

Citations

0
The demographic drivers of cultural evolution in bird song: a multilevel study DOI Creative Commons
Nilo Merino Recalde, Andrea Estandía, Sara Keen

et al.

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

Published: Dec. 1, 2023

Summary Social learning within communities sometimes leads to behavioural patterns that persist over time, which we know as culture. Examples of culture include learned bird and whale songs, cetacean feeding techniques, avian mammalian migratory routes. Shaped by neutral selective forces, animal cultures evolve dynamically lead cultural traditions differ greatly in their diversity stability. These traits can influence individual group survival, population structure, even inform conservation efforts, underscoring the importance understanding how other processes interact with social shape Although impact mechanisms biases has been extensively explored, role demographic factors—such turnover, immigration, age structure—on evolution received theoretical attention but rarely subject empirical investigation natural populations. Doing so requires very complete trait sampling detailed life history data, are hard acquire combination. To this end, built a multi-generational dataset containing 109,000 songs from >400 individuals Great Tits ( Parus major ), study using deep metric model re-identify quantify song similarity. We show variation at small spatial scales takes place potential strongly pace outcome evolution. For example, distributions skewed towards older associated slower change increased diversity, while higher local turnover elevated rates change. Our analyses support expectations for key resulting behaviour determining evolution, emphasize these species-specific factors such timing acquisition. Implications extend large-scale dynamics formation dialects or traditions.

Language: Английский

Citations

0