When does cultural evolution become cumulative culture? A case study of humpback whale song
Culture presents a second inheritance system by which innovations can be transmitted between generations and among individuals. Some vocal behaviours present compelling examples of cultural evolution. Where modifications accumulate over time, such a process can become cumulative cultural evolution....
Published in: | Philosophical Transactions of the Royal Society B: Biological Sciences |
---|---|
Main Authors: | , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Royal Society
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1098/rstb.2020.0313 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2020.0313 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2020.0313 |
id |
crroyalsociety:10.1098/rstb.2020.0313 |
---|---|
record_format |
openpolar |
spelling |
crroyalsociety:10.1098/rstb.2020.0313 2024-06-02T08:07:55+00:00 When does cultural evolution become cumulative culture? A case study of humpback whale song Garland, Ellen C. Garrigue, Claire Noad, Michael J. Royal Society 2021 http://dx.doi.org/10.1098/rstb.2020.0313 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2020.0313 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2020.0313 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society B: Biological Sciences volume 377, issue 1843 ISSN 0962-8436 1471-2970 journal-article 2021 crroyalsociety https://doi.org/10.1098/rstb.2020.0313 2024-05-07T14:16:31Z Culture presents a second inheritance system by which innovations can be transmitted between generations and among individuals. Some vocal behaviours present compelling examples of cultural evolution. Where modifications accumulate over time, such a process can become cumulative cultural evolution. The existence of cumulative cultural evolution in non-human animals is controversial. When physical products of such a process do not exist, modifications may not be clearly visible over time. Here, we investigate whether the constantly evolving songs of humpback whales ( Megaptera novaeangliae ) are indicative of cumulative cultural evolution. Using nine years of song data recorded from the New Caledonian humpback whale population, we quantified song evolution and complexity, and formally evaluated this process in light of criteria for cumulative cultural evolution. Song accumulates changes shown by an increase in complexity, but this process is punctuated by rapid loss of song material. While such changes tentatively satisfy the core criteria for cumulative cultural evolution, this claim hinges on the assumption that novel songs are preferred by females. While parsimonious, until such time as studies can link fitness benefits (reproductive success) to individual singers, any claims that humpback whale song evolution represents a form of cumulative cultural evolution may remain open to interpretation. This article is part of a discussion meeting issue ‘The emergence of collective knowledge and cumulative culture in animals, humans and machines’. Article in Journal/Newspaper Humpback Whale Megaptera novaeangliae The Royal Society Philosophical Transactions of the Royal Society B: Biological Sciences 377 1843 |
institution |
Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
Culture presents a second inheritance system by which innovations can be transmitted between generations and among individuals. Some vocal behaviours present compelling examples of cultural evolution. Where modifications accumulate over time, such a process can become cumulative cultural evolution. The existence of cumulative cultural evolution in non-human animals is controversial. When physical products of such a process do not exist, modifications may not be clearly visible over time. Here, we investigate whether the constantly evolving songs of humpback whales ( Megaptera novaeangliae ) are indicative of cumulative cultural evolution. Using nine years of song data recorded from the New Caledonian humpback whale population, we quantified song evolution and complexity, and formally evaluated this process in light of criteria for cumulative cultural evolution. Song accumulates changes shown by an increase in complexity, but this process is punctuated by rapid loss of song material. While such changes tentatively satisfy the core criteria for cumulative cultural evolution, this claim hinges on the assumption that novel songs are preferred by females. While parsimonious, until such time as studies can link fitness benefits (reproductive success) to individual singers, any claims that humpback whale song evolution represents a form of cumulative cultural evolution may remain open to interpretation. This article is part of a discussion meeting issue ‘The emergence of collective knowledge and cumulative culture in animals, humans and machines’. |
author2 |
Royal Society |
format |
Article in Journal/Newspaper |
author |
Garland, Ellen C. Garrigue, Claire Noad, Michael J. |
spellingShingle |
Garland, Ellen C. Garrigue, Claire Noad, Michael J. When does cultural evolution become cumulative culture? A case study of humpback whale song |
author_facet |
Garland, Ellen C. Garrigue, Claire Noad, Michael J. |
author_sort |
Garland, Ellen C. |
title |
When does cultural evolution become cumulative culture? A case study of humpback whale song |
title_short |
When does cultural evolution become cumulative culture? A case study of humpback whale song |
title_full |
When does cultural evolution become cumulative culture? A case study of humpback whale song |
title_fullStr |
When does cultural evolution become cumulative culture? A case study of humpback whale song |
title_full_unstemmed |
When does cultural evolution become cumulative culture? A case study of humpback whale song |
title_sort |
when does cultural evolution become cumulative culture? a case study of humpback whale song |
publisher |
The Royal Society |
publishDate |
2021 |
url |
http://dx.doi.org/10.1098/rstb.2020.0313 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2020.0313 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2020.0313 |
genre |
Humpback Whale Megaptera novaeangliae |
genre_facet |
Humpback Whale Megaptera novaeangliae |
op_source |
Philosophical Transactions of the Royal Society B: Biological Sciences volume 377, issue 1843 ISSN 0962-8436 1471-2970 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rstb.2020.0313 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
377 |
container_issue |
1843 |
_version_ |
1800753064339046400 |