Phylogeographic History of White Spruce During the Last Glacial Maximum: Uncovering Cryptic Refugia
نویسندگان
چکیده
منابع مشابه
Phylogeographic history of white spruce during the last glacial maximum: uncovering cryptic refugia.
Although a recent study of white spruce using chloroplast DNA uncovered the presence of a glacial refuge in Alaska, chloroplast failed to provide information on the number or specific localities of refugia. Recent studies have demonstrated the utility of nuclear microsatellites to refine insights into postglacial histories. The greater relative rate of mutation may allow finer scale resolution ...
متن کاملPhylogeographic insights into cryptic glacial refugia.
The glacial episodes of the Quaternary (2.6 million years ago-present) were a major factor in shaping the present-day distributions of extant flora and fauna, with expansions and contractions of the ice sheets rendering large areas uninhabitable for most species. Fossil records suggest that many species survived glacial maxima by retreating to refugia, usually at lower latitudes. Recently, phyl...
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We used 5704 14C, 10Be, and 3He ages that span the interval from 10,000 to 50,000 years ago (10 to 50 ka) to constrain the timing of the Last Glacial Maximum (LGM) in terms of global ice-sheet and mountain-glacier extent. Growth of the ice sheets to their maximum positions occurred between 33.0 and 26.5 ka in response to climate forcing from decreases in northern summer insolation, tropical Pac...
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BACKGROUND AND AIMS Distribution shifts and natural selection during past climatic changes are important factors in determining the genetic structure of forest species. In particular, climatic fluctuations during the Quaternary appear to have caused changes in the distribution ranges of plants, and thus strongly affected their genetic structure. This study was undertaken to identify the respons...
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ThehistoryofEarth is ahistoryof recurrent climate change.Today’s globalbiodiversitydemonstrates thatmany specieshavebeenable to cope with climate shifts in the past. Yet great concern exists that modern climate change is likely to overstrain the capacity of many species to track suitable climate spaces, potentially leading to widespread extinctions through the coming decades. This view is furth...
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ژورنال
عنوان ژورنال: Journal of Heredity
سال: 2010
ISSN: 1465-7333,0022-1503
DOI: 10.1093/jhered/esq110