Global cultural evolutionary model of humpback whale song. / Zandberg, Elisabeth; Lachlan, Robert; Lamoni, Luca; Garland, Ellen C.

In: Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 376, No. 1836, 25.10.2021.

Research output: Contribution to journalArticlepeer-review

E-pub ahead of print

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Global cultural evolutionary model of humpback whale song. / Zandberg, Elisabeth; Lachlan, Robert; Lamoni, Luca; Garland, Ellen C.

In: Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 376, No. 1836, 25.10.2021.

Research output: Contribution to journalArticlepeer-review

Harvard

Zandberg, E, Lachlan, R, Lamoni, L & Garland, EC 2021, 'Global cultural evolutionary model of humpback whale song', Philosophical Transactions of the Royal Society B: Biological Sciences, vol. 376, no. 1836. https://doi.org/10.1098/rstb.2020.0242

APA

Zandberg, E., Lachlan, R., Lamoni, L., & Garland, E. C. (2021). Global cultural evolutionary model of humpback whale song. Philosophical Transactions of the Royal Society B: Biological Sciences, 376(1836). https://doi.org/10.1098/rstb.2020.0242

Vancouver

Zandberg E, Lachlan R, Lamoni L, Garland EC. Global cultural evolutionary model of humpback whale song. Philosophical Transactions of the Royal Society B: Biological Sciences. 2021 Oct 25;376(1836). https://doi.org/10.1098/rstb.2020.0242

Author

Zandberg, Elisabeth ; Lachlan, Robert ; Lamoni, Luca ; Garland, Ellen C. / Global cultural evolutionary model of humpback whale song. In: Philosophical Transactions of the Royal Society B: Biological Sciences. 2021 ; Vol. 376, No. 1836.

BibTeX

@article{600f3b04703044fa804f2dd296561eb0,
title = "Global cultural evolutionary model of humpback whale song",
abstract = "Humpback whale song is an extraordinary example of vocal cultural behaviour. In northern populations, the complex songs show long-lasting traditions that slowly evolve, while in the South Pacific, periodic revolutions occur when songs are adopted from neighbouring populations and rapidly spread. In this species, vocal learning cannot be studied in the laboratory, learning is instead inferred from the songs{\textquoteright} complexity and patterns of transmission. Here, we used individual-based cultural evolutionary simulations of the entire Southern and Northern Hemisphere humpback whale populations to formalise this process of inference. We modelled processes of song mutation and patterns of contact among populations and compared our model with patterns of song theme sharing measured in South Pacific populations. Low levels of mutation in combination with rare population interactions were sufficient to closely fit the pattern of diversity in the South Pacific, including the distinctive pattern of West-to-East revolutions. Interestingly, the same learning parameters that gave rise to revolutions in the Southern Hemisphere simulations gave rise to evolutionary patterns of cultural evolution in the Northern Hemisphere populations. Our study demonstrates how cultural evolutionary approaches can be used to make inferences about the learning processes underlying cultural transmission and how they might generate emergent population-level processes.",
keywords = "vocal learning, individual-based simulations, song, cultural evolution, cultural transmission",
author = "Elisabeth Zandberg and Robert Lachlan and Luca Lamoni and Garland, {Ellen C.}",
year = "2021",
month = sep,
day = "6",
doi = "10.1098/rstb.2020.0242",
language = "English",
volume = "376",
journal = "Philosophical Transactions of the Royal Society of London B: Biological Sciences",
issn = "0962-8436",
publisher = "Royal Society of London",
number = "1836",

}

RIS

TY - JOUR

T1 - Global cultural evolutionary model of humpback whale song

AU - Zandberg, Elisabeth

AU - Lachlan, Robert

AU - Lamoni, Luca

AU - Garland, Ellen C.

PY - 2021/9/6

Y1 - 2021/9/6

N2 - Humpback whale song is an extraordinary example of vocal cultural behaviour. In northern populations, the complex songs show long-lasting traditions that slowly evolve, while in the South Pacific, periodic revolutions occur when songs are adopted from neighbouring populations and rapidly spread. In this species, vocal learning cannot be studied in the laboratory, learning is instead inferred from the songs’ complexity and patterns of transmission. Here, we used individual-based cultural evolutionary simulations of the entire Southern and Northern Hemisphere humpback whale populations to formalise this process of inference. We modelled processes of song mutation and patterns of contact among populations and compared our model with patterns of song theme sharing measured in South Pacific populations. Low levels of mutation in combination with rare population interactions were sufficient to closely fit the pattern of diversity in the South Pacific, including the distinctive pattern of West-to-East revolutions. Interestingly, the same learning parameters that gave rise to revolutions in the Southern Hemisphere simulations gave rise to evolutionary patterns of cultural evolution in the Northern Hemisphere populations. Our study demonstrates how cultural evolutionary approaches can be used to make inferences about the learning processes underlying cultural transmission and how they might generate emergent population-level processes.

AB - Humpback whale song is an extraordinary example of vocal cultural behaviour. In northern populations, the complex songs show long-lasting traditions that slowly evolve, while in the South Pacific, periodic revolutions occur when songs are adopted from neighbouring populations and rapidly spread. In this species, vocal learning cannot be studied in the laboratory, learning is instead inferred from the songs’ complexity and patterns of transmission. Here, we used individual-based cultural evolutionary simulations of the entire Southern and Northern Hemisphere humpback whale populations to formalise this process of inference. We modelled processes of song mutation and patterns of contact among populations and compared our model with patterns of song theme sharing measured in South Pacific populations. Low levels of mutation in combination with rare population interactions were sufficient to closely fit the pattern of diversity in the South Pacific, including the distinctive pattern of West-to-East revolutions. Interestingly, the same learning parameters that gave rise to revolutions in the Southern Hemisphere simulations gave rise to evolutionary patterns of cultural evolution in the Northern Hemisphere populations. Our study demonstrates how cultural evolutionary approaches can be used to make inferences about the learning processes underlying cultural transmission and how they might generate emergent population-level processes.

KW - vocal learning

KW - individual-based simulations

KW - song

KW - cultural evolution

KW - cultural transmission

U2 - 10.1098/rstb.2020.0242

DO - 10.1098/rstb.2020.0242

M3 - Article

VL - 376

JO - Philosophical Transactions of the Royal Society of London B: Biological Sciences

JF - Philosophical Transactions of the Royal Society of London B: Biological Sciences

SN - 0962-8436

IS - 1836

ER -