Article ; Online: Determining the most recent common ancestor in a finite linear habitat with asymmetric dispersal.
Theoretical population biology
2023 Volume 153, Page(s) 91–101
Abstract: ... location to the upstream edge, the effective population size (N ...
Abstract | Many species that are birthed in one location and become reproductive in another location can be treated as if in a one-dimensional habitat where dispersal is biased downstream. One example of such is planktonic larvae that disperse in coastal oceans, rivers, and streams. In these habitats, the dynamics of the dispersal are dominated by the movement of offspring in one direction and the distance between parents and offspring in the other direction does not matter. We study an idealized species with non-overlapping generations in a finite linear habitat that has no larval input from outside of the habitat and is therefore isolated from other populations. The most non-realistic assumption that we make is that there are non-overlapping generations, and this is an assumption to be considered in future work. We find that a biased dispersal in the habitat reduces the average time to the most recent common ancestor and causes the average location of the most recent common ancestor to move from the center of the habitat to the upstream edge of the habitat. Due to the decrease in the time to the most recent common ancestor and the shift of the average location to the upstream edge, the effective population size (N |
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MeSH term(s) | Animals ; Ecosystem ; Larva ; Population Density ; Oceans and Seas |
Language | English |
Publishing date | 2023-07-13 |
Publishing country | United States |
Document type | Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. |
ZDB-ID | 3948-2 |
ISSN | 1096-0325 ; 0040-5809 |
ISSN (online) | 1096-0325 |
ISSN | 0040-5809 |
DOI | 10.1016/j.tpb.2023.06.003 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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