Persistent panmixia despite extreme habitat loss and population decline in the threatened tricolored blackbird (Agelaius tricolor)
| العنوان: | Persistent panmixia despite extreme habitat loss and population decline in the threatened tricolored blackbird (Agelaius tricolor) |
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| المؤلفون: | Annabel C. Beichman, Pooneh Kalhori, Kristen Ruegg, Thomas B. Smith, Rachael A. Bay, Jasmine Rajbhandary, Kelly R. Barr |
| المصدر: | Evolutionary Applications Evolutionary applications, vol 14, iss 3 Evolutionary Applications, Vol 14, Iss 3, Pp 674-684 (2021) |
| بيانات النشر: | John Wiley and Sons Inc., 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Conservation genetics, threatened species, Life on Land, habitat loss, lcsh:Evolution, Biology, 010603 evolutionary biology, 01 natural sciences, 03 medical and health sciences, Medicinal and Biomolecular Chemistry, Effective population size, rural saving and credit cooperatives, lcsh:QH359-425, Agelaius, life cycle, Genetics, genomics, Ecology, Evolution, Behavior and Systematics, DEA window analysis, Panmixia, Evolutionary Biology, Extinction, Ecology, Human Genome, demographic modeling, technical efficiency, Original Articles, entrepreneurial class, biology.organism_classification, Population decline, 030104 developmental biology, Habitat destruction, conservation genetics, Threatened species, Original Article, General Agricultural and Biological Sciences, gene flow, deposit mobilization, effective population size |
| الوصف: | Habitat loss and alteration has driven many species into decline, often to the point of requiring protection and intervention to avert extinction. Genomic data provide the opportunity to inform conservation and recovery efforts with details about vital evolutionary processes with a resolution far beyond that of traditional genetic approaches. The tricolored blackbird (Agelaius tricolor) has suffered severe losses during the previous century largely due to anthropogenic impacts on their habitat. Using a dataset composed of a whole genome paired with reduced representation libraries (RAD-Seq) from samples collected across the species' range, we find evidence for panmixia using multiple methods, including PCA (no geographic clustering), admixture analyses (ADMIXTURE and TESS conclude K=1), and comparisons of genetic differentiation (average FST=0.029). Demographic modeling approaches recovered an ancient decline that had a strong impact on genetic diversity but did not detect any effect from the known recent decline. We also did not detect any evidence for selection, and hence adaptive variation, at any site, either geographic or genomic. These results indicate that species continues to have high vagility across its range despite population decline and habitat loss and should be managed as a single unit. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1752-4571 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6893b809f6ba9d9b9ec1c29d631a553a http://europepmc.org/articles/PMC7980274 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....6893b809f6ba9d9b9ec1c29d631a553a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17524571 |
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