A serial founder effect model of phonemic diversity based on phonemic loss in low-density populations [dades de recerca]
dc.contributor.author
dc.date.accessioned
2019-11-26T09:26:23Z
dc.date.available
2019-11-26T09:26:23Z
dc.date.issued
2018-06-01
dc.identifier.uri
dc.description
Dades associades a l' article publicat: Pérez-Losada, J. & Fort, J. (2018). A serial founder effect model of phonemic diversity based on phonemic loss in low-density populations. PLoS ONE, vol. 13, núm. 6, p. e0198346. Disponible a https://doi.org/10.1371/journal.pone.0198346
The zip file contains the following documents and files:
- S1 Text: Supplementary results in DOCX, available at https://doi.org/10.1371/journal.pone.0198346.s001. This document contains different graphic simulations that complement the results mentioned in the published article. Graphics have been calculated from the data collected in the "Language database".</p>
- S1 Database in XLSX available at https://doi.org/10.1371/journal.pone.0198346.s002. It is the Language database that contains the list of phonemes for 359 languages. For each language are provided the number of phonemes and the distance from the origin of the out-of-Africa. For these 359 languages, 908 different phonemes have been found. First, all languages in the dataset were coded in strings of "1" and "0". This leads to a "full" matrix of 359 rows (languages) x 908 columns (phonemes). The presence of a phoneme is marked with a "1" in the corresponding position. The absence of a given phoneme is marked with a "0". Data from this database are used to generate the observed phonetic cline and the simulated phonemic cline, explained in the published article.
- Two programs in FORTRAN to carry out the numerical simulations based on the data collected in the Language database (S1): S1 Software is the SFE with phonemic loss program, available at https://doi.org/10.1371/journal.pone.0198346.s003 (ZIP) and S2 Software is the program to compute diversity tF of languages at given distance intervals, available at https://doi.org/10.1371/journal.pone.0198346.s004 (ZIP)
dc.description.abstract
It has been observed that the number of phonemes in languages in use today tends to decrease with increasing distance from Africa. A previous formal model has recently reproduced the observed cline, but under two strong assumptions. Here we tackle the question of whether an alternative explanation for the worldwide phonemic cline is possible, by using alternative assumptions. The answer is affirmative. We show this by formalizing a proposal, following Atkinson, that this pattern may be due to a repeated bottleneck effect and phonemic loss. In our simulations, low-density populations lose phonemes during the Out-of-Africa dispersal of modern humans. Our results reproduce the observed global cline for the number of phonemes. In addition, we also detect a cline of phonemic diversity and reproduce it using our simulation model. We suggest how future work could determine whether the previous model or the new one (or even a combination of them) is valid. Simulations also show that the clines can still be present even 300 kyr after the Out-of-Africa dispersal, which is contrary to some previous claims which were not supported by numerical simulations
dc.format.mimetype
application/zip
dc.language.iso
eng
dc.publisher
Public Library of Science (PLoS)
dc.relation
Pérez-Losada, J. & Fort, J. A serial founder effect model of phonemic diversity based on phonemic loss in low-density populations. PLoS ONE, 2018, 13 (6): e0198346. https://doi.org/10.1371/journal.pone.0198346, http://hdl.handle.net/10256/16065
dc.relation.ispartofseries
Dades de recerca
dc.relation.isreferencedby
dc.relation.uri
dc.rights
Attribution 4.0 International
dc.rights.uri
dc.subject
dc.title
A serial founder effect model of phonemic diversity based on phonemic loss in low-density populations [dades de recerca]
dc.type
Dataset
info:eu-repo/semantics/other
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.identifier.doi