TY - JOUR

T1 - La conformidad cultural y la persistencia del canto de Spiza americana son más altas en los lugares en los que los machos muestran una alta fidelidad de sitio

AU - Parker, Timothy H.

AU - Sousa, Bridget

AU - Leu, Stephan T.

AU - Edmondson, Stacy

AU - Foo, Cecily

AU - Strauss, Amy

AU - Kahl, Hanna

AU - Ballinger, Kristen

AU - Ross, Eric

AU - Ruse, Mareile Große

AU - Sandsten, Maria

AU - Verheijen, Bram H.F.

AU - Jensen, William

N1 - Funding Information: Funding statement: Students who worked on this project were supported by Whitman College and/or by Kansas State University Biology National Science Foundation-REU grants (DBI-0552930 and 0851835). Ethics statement: Birds were marked under permit from the USGS and State of Kansas and with the approval of the Whitman College Animal Care and Use Committee. This work complies with the laws of the USA. Author contributions: T.H.P., B.S., and W.J. conceived of the study. T.H.P., B.S., C.F., A.S., H.K., K.B., and E.R. implemented the field study. T.H.P., S.T.L., S.E., C.F., M.G.R., M.S., and B.V. designed or conducted data analyses. T.H.P., S.E., C.F., A.S., H.K., K.B., E.R., B.V., and W.J. interpreted results. T.H.P. wrote the manuscript. T.H.P., S.T.L., S.E., H.K., M.S., B.V., and W.J. edited the manuscript. Conflict of interest statement: The authors declare no conflict of interest. Data depository: Data and code are archived on the Open Science Framework at https://doi.org/10.17605/OSF.IO/ EM43D. Publisher Copyright: Copyright © American Ornithological Society 2021. All rights reserved.

PY - 2022

Y1 - 2022

N2 - Dickcissel (Spiza americana) males occupying territories in cropland sites produced songs that were less similar on average to other Dickcissel songs in their neighborhood than did Dickcissels living in grasslands, where conformity to the local vocal culture was higher. Further, Dickcissel vocal culture changed more quickly over time in cropland sites relative to grassland sites. These differences may have resulted from the lower site fidelity we observed in Dickcissel males in cropland sites relative to grassland sites. We expected this link with site fidelity because we hypothesized that conformity to local culture in Oscine songbirds and the persistence of culture over time and space are promoted by habitats that facilitate stable populations. In contrast, sites in which habitat features cause rapid population turnover provide more territory vacancies and so more opportunities for colonization. Colonization should drive cultural change, either through adult colonists importing foreign cultural variants or young colonists making errors as they learn the local song. This potential link between population turnover and cultural stability may apply to animal cultures more broadly and so may be a fruitful area for further research. Besides the link between site fidelity and cultural change over time, we also investigated the possibility that habitats with different levels of site fidelity might show differences in the spatial scale of song similarity. However, we found no evidence of such a difference. Finally, although our conclusions regarding conformity and change in vocal culture were based on many recorded songs, automated assessments of song similarity imprecisely estimated the overall degree of song similarity. Thus, we may have underestimated the strength of the effects of time and distance on song similarity.

AB - Dickcissel (Spiza americana) males occupying territories in cropland sites produced songs that were less similar on average to other Dickcissel songs in their neighborhood than did Dickcissels living in grasslands, where conformity to the local vocal culture was higher. Further, Dickcissel vocal culture changed more quickly over time in cropland sites relative to grassland sites. These differences may have resulted from the lower site fidelity we observed in Dickcissel males in cropland sites relative to grassland sites. We expected this link with site fidelity because we hypothesized that conformity to local culture in Oscine songbirds and the persistence of culture over time and space are promoted by habitats that facilitate stable populations. In contrast, sites in which habitat features cause rapid population turnover provide more territory vacancies and so more opportunities for colonization. Colonization should drive cultural change, either through adult colonists importing foreign cultural variants or young colonists making errors as they learn the local song. This potential link between population turnover and cultural stability may apply to animal cultures more broadly and so may be a fruitful area for further research. Besides the link between site fidelity and cultural change over time, we also investigated the possibility that habitats with different levels of site fidelity might show differences in the spatial scale of song similarity. However, we found no evidence of such a difference. Finally, although our conclusions regarding conformity and change in vocal culture were based on many recorded songs, automated assessments of song similarity imprecisely estimated the overall degree of song similarity. Thus, we may have underestimated the strength of the effects of time and distance on song similarity.

KW - culture

KW - Dickcissel

KW - habitat

KW - site fidelity

KW - song

KW - Spiza americana

U2 - 10.1093/ornithology/ukab061

DO - 10.1093/ornithology/ukab061

M3 - Tidsskriftartikel

AN - SCOPUS:85146418698

VL - 139

JO - Ornithology

JF - Ornithology

SN - 0004-8038

IS - 1

M1 - ukab061

ER -