دورية أكاديمية
Genetic differentiation in an endangered and strongly philopatric, migrant shorebird.
| العنوان: | Genetic differentiation in an endangered and strongly philopatric, migrant shorebird. |
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| المؤلفون: | Rönkä N; Ecology and Genetics Research Unit, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland., Pakanen VM; Ecology and Genetics Research Unit, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland.; Department of Biological and Environmental Sciences, University of Gothenburg, P.O. Box 463, 405 30, Gothenburg, Sweden., Pauliny A; Department of Biological and Environmental Sciences, University of Gothenburg, P.O. Box 463, 405 30, Gothenburg, Sweden., Thomson RL; Section of Ecology, Department of Biology, University of Turku, 20014, Turku, Finland.; Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch, 7701, South Africa., Nuotio K; Environmental Agency, Valtakatu 11, 28100, Pori, Finland., Pehlak H; Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51014, Tartu, Estonia.; OÜ Xenus, Koguva, 94724, Muhu Island, Saare, Estonia., Thorup O; V. Vedsted Byvej 32, Vester Vedsted, 6760, Ribe, Denmark., Lehikoinen P; The Helsinki Lab of Ornithology, Finnish Museum of Natural History, University of Helsinki, 00014, Helsinki, Finland., Rönkä A; Ecology and Genetics Research Unit, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland., Blomqvist D; Department of Biological and Environmental Sciences, University of Gothenburg, P.O. Box 463, 405 30, Gothenburg, Sweden. donald.blomqvist@bioenv.gu.se., Koivula K; Ecology and Genetics Research Unit, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland., Kvist L; Ecology and Genetics Research Unit, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland. |
| المصدر: | BMC ecology and evolution [BMC Ecol Evol] 2021 Jun 19; Vol. 21 (1), pp. 125. Date of Electronic Publication: 2021 Jun 19. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: BioMed Central Country of Publication: England NLM ID: 101775613 Publication Model: Electronic Cited Medium: Internet ISSN: 2730-7182 (Electronic) Linking ISSN: 27307182 NLM ISO Abbreviation: BMC Ecol Evol Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: London : BioMed Central, [2021]- |
| مواضيع طبية MeSH: | Gene Flow* , Genetic Variation*, Ecosystem ; Genetic Drift ; Humans ; Inbreeding |
| مستخلص: | Background: Populations living in fragmented habitats may suffer from loss of genetic variation and reduced between-patch dispersal, which are processes that can result in genetic differentiation. This occurs frequently in species with reduced mobility, whereas genetic differentiation is less common among mobile species such as migratory birds. The high dispersal capacity in the latter species usually allows for gene flow even in fragmented landscapes. However, strongly philopatric behaviour can reinforce relative isolation and the degree of genetic differentiation. The Southern Dunlin (Calidris alpina schinzii) is a philopatric, long-distance migratory shorebird and shows reduced dispersal between isolated breeding patches. The endangered population of the Southern Dunlin breeding at the Baltic Sea has suffered from habitat deterioration and fragmentation of coastal meadows. We sampled DNA across the entire population and used 12 polymorphic microsatellite loci to examine whether the environmental changes have resulted in genetic structuring and loss of variation. Results: We found a pattern of isolation-by-distance across the whole Baltic population and genetic differentiation between local populations, even within the southern Baltic. Observed heterozygosity was lower than expected throughout the range and internal relatedness values were positive indicating inbreeding. Conclusions: Our results provide long-term, empirical evidence for the theoretically expected links between habitat fragmentation, population subdivision, and gene flow. They also demonstrate a rare case of genetic differentiation between populations of a long-distance migratory species. The Baltic Southern Dunlin differs from many related shorebird species that show near panmixia, reflecting its philopatric life history and the reduced connectivity of its breeding patches. The results have important implications as they suggest that reduced connectivity of breeding habitats can threaten even long-distance migrants if they show strong philopatry during breeding. The Baltic Southern Dunlin warrants urgent conservation efforts that increase functional connectivity and gene flow between breeding areas. |
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| معلومات مُعتمدة: | 128384 Academy of Finland; 278759 Academy of Finland; 21.5/2002-1037 Svenska Forskningsrådet Formas; 217-2005-817 Svenska Forskningsrådet Formas; 215-2009-463 Svenska Forskningsrådet Formas; FO2009-0007 Stiftelsen Oscar och Lili Lamms Minne; FO2012-0039 Stiftelsen Oscar och Lili Lamms Minne; CTS 09:294 Carl Tryggers Stiftelse för Vetenskaplig Forskning |
| فهرسة مساهمة: | Keywords: Baltic Sea; Calidris alpina schinzii; Dispersal; Fragmentation; Genetic variation; Microsatellites; Population structure |
| سلسلة جزيئية: | Dryad 10.5061/dryad.pk0p2ngnq |
| تواريخ الأحداث: | Date Created: 20210620 Date Completed: 20210625 Latest Revision: 20220531 |
| رمز التحديث: | 20221213 |
| مُعرف محوري في PubMed: | PMC8214799 |
| DOI: | 10.1186/s12862-021-01855-0 |
| PMID: | 34147062 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 2730-7182 |
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| DOI: | 10.1186/s12862-021-01855-0 |