Document Detail


Fossil pollen as a guide to conservation in the Galapagos.
MedLine Citation:
PMID:  19023075     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Paleoecological evidence from the past 8000 years in the Galápagos Islands shows that six presumed introduced or doubtfully native species (Ageratum conyzoides, Borreria laevis/Diodia radula-type, Brickellia diffusa, Cuphea carthagenensis, Hibiscus diversifolius, and Ranunculus flagelliformis) are in fact native to the archipelago. Fossil pollen and macrofossils from four sites in the highlands of Santa Cruz Island reveal that all were present thousands of years before the advent of human impact, refuting their classification as introduced species. These findings have substantial implications not only for conservation in Galápagos but for the management of introduced species and pantropical weeds in general.
Authors:
Jacqueline F N van Leeuwen; Cynthia A Froyd; W O van der Knaap; Emily E Coffey; Alan Tye; Katherine J Willis
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  322     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-11-21     Completed Date:  2008-12-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1206     Citation Subset:  IM    
Affiliation:
Institute of Plant Sciences and Oeschger Centre for Climate Change Research, University of Bern, Altenbergrain 21, CH-3013 Bern, Switzerland.
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MeSH Terms
Descriptor/Qualifier:
Angiosperms
Conservation of Natural Resources*
Ecology / methods
Ecosystem
Ecuador
Fossils*
Humans
Pollen*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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