Digest: islands promote population differentiation in dispersive swallows
How can highly dispersive species give rise to genetically distinct populations? This seemingly paradoxical pattern is common among insular birds, but not in those with continental distributions. Broyles and Myers sequence the genomes of almost 150 individuals from the island-dwelling Pacific swallo...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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Oxford University Press
2023
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| _version_ | 1824458718450810880 |
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| author | Estandía, A Merino Recalde, N |
| author_facet | Estandía, A Merino Recalde, N |
| author_sort | Estandía, A |
| collection | OXFORD |
| description | How can highly dispersive species give rise to genetically distinct populations? This seemingly paradoxical pattern is common among insular birds, but not in those with continental distributions. Broyles and Myers sequence the genomes of almost 150 individuals from the island-dwelling Pacific swallow (<i>Hirundo tahitica</i>) and its continental counterpart, the welcome swallow (<i>H. neoxena</i>). They find strong population structure only among island populations and attribute this to a behavioral reduction in dispersal propensity following island colonization. However, wing shape remains consistent across populations, suggesting it might not accurately reflect dispersal propensity in this group. This study illustrates the interplay between dispersal, isolation, and divergence, offering insights into how geographic factors affect speciation and population differentiation on islands. |
| first_indexed | 2024-03-07T08:23:32Z |
| format | Journal article |
| id | oxford-uuid:a24b922c-7f93-47c9-b47f-e8154a479145 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2025-02-19T04:30:21Z |
| publishDate | 2023 |
| publisher | Oxford University Press |
| record_format | dspace |
| spelling | oxford-uuid:a24b922c-7f93-47c9-b47f-e8154a4791452024-12-23T08:59:57ZDigest: islands promote population differentiation in dispersive swallowsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a24b922c-7f93-47c9-b47f-e8154a479145EnglishSymplectic ElementsOxford University Press2023Estandía, AMerino Recalde, NHow can highly dispersive species give rise to genetically distinct populations? This seemingly paradoxical pattern is common among insular birds, but not in those with continental distributions. Broyles and Myers sequence the genomes of almost 150 individuals from the island-dwelling Pacific swallow (<i>Hirundo tahitica</i>) and its continental counterpart, the welcome swallow (<i>H. neoxena</i>). They find strong population structure only among island populations and attribute this to a behavioral reduction in dispersal propensity following island colonization. However, wing shape remains consistent across populations, suggesting it might not accurately reflect dispersal propensity in this group. This study illustrates the interplay between dispersal, isolation, and divergence, offering insights into how geographic factors affect speciation and population differentiation on islands. |
| spellingShingle | Estandía, A Merino Recalde, N Digest: islands promote population differentiation in dispersive swallows |
| title | Digest: islands promote population differentiation in dispersive swallows |
| title_full | Digest: islands promote population differentiation in dispersive swallows |
| title_fullStr | Digest: islands promote population differentiation in dispersive swallows |
| title_full_unstemmed | Digest: islands promote population differentiation in dispersive swallows |
| title_short | Digest: islands promote population differentiation in dispersive swallows |
| title_sort | digest islands promote population differentiation in dispersive swallows |
| work_keys_str_mv | AT estandiaa digestislandspromotepopulationdifferentiationindispersiveswallows AT merinorecalden digestislandspromotepopulationdifferentiationindispersiveswallows |