Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area
Pleistocene refugia likely contributed to the modern biodiversity of northern areas. Using the mitochondrial DNA cytochrome-b gene, we compared 11 forest-dwelling bird species from Haida Gwaii (formerly the Queen Charlotte Islands) with populations from Alaska, Washington, and other locations in the...
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American Ornithological Society
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ftbioone:10.1525/cond.2013.120123 2023-07-30T04:06:22+02:00 Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area Christin L. Pruett Carrie M. Topp James M. Maley Kevin G. McCracken Sievert Rohwer Sharon Birks Spencer G. Sealy Kevin Winker Christin L. Pruett Carrie M. Topp James M. Maley Kevin G. McCracken Sievert Rohwer Sharon Birks Spencer G. Sealy Kevin Winker world 2013-11-01 text/HTML https://doi.org/10.1525/cond.2013.120123 en eng American Ornithological Society doi:10.1525/cond.2013.120123 All rights reserved. https://doi.org/10.1525/cond.2013.120123 Text 2013 ftbioone https://doi.org/10.1525/cond.2013.120123 2023-07-09T09:24:09Z Pleistocene refugia likely contributed to the modern biodiversity of northern areas. Using the mitochondrial DNA cytochrome-b gene, we compared 11 forest-dwelling bird species from Haida Gwaii (formerly the Queen Charlotte Islands) with populations from Alaska, Washington, and other locations in the United States. If Haida Gwaii was an unglaciated refugium, its modern populations should feature a high number of endemic lineages and divergence times that predate the end of the last glacial maximum, ca. 13,000–19,000 years before present (ybp). Furthermore, the genetic diversity of these populations should be higher than that in areas colonized after the glacial retreat. Four of the species examined from Haida Gwaii showed old divergences and a high percentage of endemic lineages: the Northern Saw-whet Owl (Aegolius acadicus), Hairy Woodpecker (Picoides villosus), Steller's Jay (Cyanocitta stelleri), and Pine Grosbeak (Pinícola enucleator); all four have endemic subspecies on these islands. The Pacific Wren (Troglodytes pacificus) and Song Sparrow (Melospiza melodia) showed genetic trends associated with populations in refugia, including high genetic diversity on Haida Gwaii. Estimated divergence dates of these six species were fairly uniform (∼20,000–30,000 ybp), being greatest for the Hairy Woodpecker (>70,000 ybp) and Pine Grosbeak (>120,000 ybp). There was an association between apparent occurrence in a refugium and a sedentary lifehistory strategy and a trend for endemic subspecies (4 of 6) also to show this association. Our findings suggest that the Haida Gwaii area hosted a forested refugium during the cycles of climatic change in the late Pleistocene. Text Pine Grosbeak Alaska BioOne Online Journals Pacific Queen Charlotte ENVELOPE(-132.088,-132.088,53.255,53.255) The Condor 115 4 725 737 |
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Open Polar |
collection |
BioOne Online Journals |
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ftbioone |
language |
English |
description |
Pleistocene refugia likely contributed to the modern biodiversity of northern areas. Using the mitochondrial DNA cytochrome-b gene, we compared 11 forest-dwelling bird species from Haida Gwaii (formerly the Queen Charlotte Islands) with populations from Alaska, Washington, and other locations in the United States. If Haida Gwaii was an unglaciated refugium, its modern populations should feature a high number of endemic lineages and divergence times that predate the end of the last glacial maximum, ca. 13,000–19,000 years before present (ybp). Furthermore, the genetic diversity of these populations should be higher than that in areas colonized after the glacial retreat. Four of the species examined from Haida Gwaii showed old divergences and a high percentage of endemic lineages: the Northern Saw-whet Owl (Aegolius acadicus), Hairy Woodpecker (Picoides villosus), Steller's Jay (Cyanocitta stelleri), and Pine Grosbeak (Pinícola enucleator); all four have endemic subspecies on these islands. The Pacific Wren (Troglodytes pacificus) and Song Sparrow (Melospiza melodia) showed genetic trends associated with populations in refugia, including high genetic diversity on Haida Gwaii. Estimated divergence dates of these six species were fairly uniform (∼20,000–30,000 ybp), being greatest for the Hairy Woodpecker (>70,000 ybp) and Pine Grosbeak (>120,000 ybp). There was an association between apparent occurrence in a refugium and a sedentary lifehistory strategy and a trend for endemic subspecies (4 of 6) also to show this association. Our findings suggest that the Haida Gwaii area hosted a forested refugium during the cycles of climatic change in the late Pleistocene. |
author2 |
Christin L. Pruett Carrie M. Topp James M. Maley Kevin G. McCracken Sievert Rohwer Sharon Birks Spencer G. Sealy Kevin Winker |
format |
Text |
author |
Christin L. Pruett Carrie M. Topp James M. Maley Kevin G. McCracken Sievert Rohwer Sharon Birks Spencer G. Sealy Kevin Winker |
spellingShingle |
Christin L. Pruett Carrie M. Topp James M. Maley Kevin G. McCracken Sievert Rohwer Sharon Birks Spencer G. Sealy Kevin Winker Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area |
author_facet |
Christin L. Pruett Carrie M. Topp James M. Maley Kevin G. McCracken Sievert Rohwer Sharon Birks Spencer G. Sealy Kevin Winker |
author_sort |
Christin L. Pruett |
title |
Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area |
title_short |
Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area |
title_full |
Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area |
title_fullStr |
Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area |
title_full_unstemmed |
Evidence from the Genetics of Landbirds for a Forested Pleistocene Glacial Refugium in the Haida Gwaii Area |
title_sort |
evidence from the genetics of landbirds for a forested pleistocene glacial refugium in the haida gwaii area |
publisher |
American Ornithological Society |
publishDate |
2013 |
url |
https://doi.org/10.1525/cond.2013.120123 |
op_coverage |
world |
long_lat |
ENVELOPE(-132.088,-132.088,53.255,53.255) |
geographic |
Pacific Queen Charlotte |
geographic_facet |
Pacific Queen Charlotte |
genre |
Pine Grosbeak Alaska |
genre_facet |
Pine Grosbeak Alaska |
op_source |
https://doi.org/10.1525/cond.2013.120123 |
op_relation |
doi:10.1525/cond.2013.120123 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1525/cond.2013.120123 |
container_title |
The Condor |
container_volume |
115 |
container_issue |
4 |
container_start_page |
725 |
op_container_end_page |
737 |
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1772818918962888704 |