Linked Life Data

20456227

Source:http://linkedlifedata.com/resource/pubmed/id/20456227

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-5-11
pubmed:abstractText
Much thought has been given to the individual-level traits that may make a species a successful colonizer. However, these traits have proven to be weak predictors of colonization success. Here, we test whether population-level characteristics, specifically genetic diversity and population density, can influence colonization ability on a short-term ecological timescale, independent of longer-term effects on adaptive potential. Within experimentally manipulated populations of the weedy herb Arabidopsis thaliana, we found that increased genetic diversity increased colonization success measured as population-level seedling emergence rates, biomass production, flowering duration, and reproduction. Additive and non-additive effects contributed to these responses, suggesting that both individual genotypes (sampling effect) and positive interactions among genotypes (complementarity) contributed to increased colonization success. In contrast, manipulation of plant density had no effect on colonization success. The heightened ability of relatively genetically rich populations to colonize novel habitats, if a general phenomenon, may have important implications for predicting and controlling biological invasions.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1365-294X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1253-63
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Population genetic diversity influences colonization success.
pubmed:affiliation
Department of Ecology and Evolutionary Biology, Rice University, 6100 Main St., Houston, TX 77005, USA. kcrawford@rice.edu
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural