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http://hdl.handle.net/2445/151386
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DC Field | Value | Language |
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dc.contributor.author | Schunter, Celia | - |
dc.contributor.author | Pascual Berniola, Marta | - |
dc.contributor.author | Raventós, N. | - |
dc.contributor.author | Garriga, J. | - |
dc.contributor.author | Garza, J.C. | - |
dc.contributor.author | Bartumeus, F. | - |
dc.contributor.author | Macpherson, Enrique | - |
dc.date.accessioned | 2020-02-27T17:23:05Z | - |
dc.date.available | 2020-02-27T17:23:05Z | - |
dc.date.issued | 2019-07-25 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/2445/151386 | - |
dc.description.abstract | Dispersal is one of the main determining factors of population structure. In the marine habitat, well-connected populations with large numbers of reproducing individuals are common but even so population structure can exist on a small-scale. Variation in dispersal patterns between populations or over time is often associated to geographic distance or changing oceanographic barriers. Consequently, detecting structure and variation in dispersal on a fine-scale within marine populations still remains a challenge. Here we propose and use a novel approach of combining a clustering model, early-life history trait information from fish otoliths, spatial coordinates and genetic markers to detect very fine-scale dispersal patterns. We collected 1573 individuals (946 adults and 627 juveniles) of the black-faced blenny across a small-scale (2 km) coastline as well as at a larger-scale area (<50 kms). A total of 178 single nucleotide polymorphism markers were used to evaluate relatedness patterns within this well-connected population. In our clustering models we categorized SHORT-range dispersers to be potential local recruits based on their high relatedness within and low relatedness towards other spatial clusters. Local retention and/or dispersal of this potential local recruitment varied across the 2 km coastline with higher frequency of SHORT-range dispersers towards the southwest of the area for adults. An inverse pattern was found for juveniles, showing an increase of SHORT-range dispersers towards the northeast. As we rule out selective movement and mortality from one year to the next, this pattern reveals a complex but not full genetic mixing, and variability in coastal circulation is most likely the main driver of this fine-scale chaotic genetic patchiness within this otherwise homogeneous population. When focusing on the patterns within one recruitment season, we found large differences in temperatures (from approx. 17 °C to 25 °C) as well as pelagic larval duration (PLD) for juveniles from the beginning of the season and the end of the season. We were able to detect fine-scale differences in LONG-range juvenile dispersers, representing distant migrants, depending on whether they were born at the beginning of the season with a longer PLD, or at the end of the reproductive season. The ability to detect such fine-scale dispersal patchiness will aid in our understanding of the underlying mechanisms of population structuring and chaotic patchiness in a wide range of species even with high potential dispersal abilities. | - |
dc.format.extent | 10 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Nature Publishing Group | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1038/s41598-019-47200-w | - |
dc.relation.ispartof | Scientific Reports, 2019, vol. 9, p. 10786 | - |
dc.relation.uri | https://doi.org/10.1038/s41598-019-47200-w | - |
dc.rights | cc-by (c) Schunter, C. et al., 2019 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Genètica, Microbiologia i Estadística) | - |
dc.subject.classification | Comunitats animals | - |
dc.subject.classification | Ecologia marina | - |
dc.subject.other | Animal communities | - |
dc.subject.other | Marine ecology | - |
dc.title | A novel integrative approach elucidates fine-scale dispersal patchiness in marine populations | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 693225 | - |
dc.date.updated | 2020-02-27T17:23:06Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
dc.identifier.pmid | 31346216 | - |
Appears in Collections: | Articles publicats en revistes (Genètica, Microbiologia i Estadística) |
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693225.pdf | 1.83 MB | Adobe PDF | View/Open |
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