Volcanic islands provide notable examples of the parallel between a changing geographic area and its changing biota. This is particularly true for young islands where volcanic activity is known to dictate the rate of population extinction and recolonization and to influence evolutionary diversification. However, examples of demographic changes associated with historical volcanism are hard to describe because of difficulties in extracting information about population history. Here, we show that genes of a giant tortoise population have recorded a signature associated with a sizable prehistoric eruption of Volcano Alcedo on the Galapagos Islands.
Genes record a prehistorical volcano eruption in the Galápagos / Beheregaray LB; Ciofi C; Geist D; Caccone A; Gibbs JP; Powell JR. - In: SCIENCE. - ISSN 0036-8075. - STAMPA. - 302(2003), pp. 75-75. [10.1126/science.1087486]
Titolo: | Genes record a prehistorical volcano eruption in the Galápagos | |
Autori di Ateneo: | ||
Autori: | Beheregaray LB; CIOFI, CLAUDIO; Geist D; Caccone A; Gibbs JP; Powell JR | |
Anno di registrazione: | 2003 | |
Rivista: | ||
Volume: | 302 | |
Pagina iniziale: | 75 | |
Pagina finale: | 75 | |
Abstract: | Volcanic islands provide notable examples of the parallel between a changing geographic area and its changing biota. This is particularly true for young islands where volcanic activity is known to dictate the rate of population extinction and recolonization and to influence evolutionary diversification. However, examples of demographic changes associated with historical volcanism are hard to describe because of difficulties in extracting information about population history. Here, we show that genes of a giant tortoise population have recorded a signature associated with a sizable prehistoric eruption of Volcano Alcedo on the Galapagos Islands. | |
Handle: | http://hdl.handle.net/2158/388871 | |
Appare nelle tipologie: | 1a - Articolo su rivista |
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