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dc.contributor.author
Castillo, Jesus M.  
dc.contributor.author
Grewell, Brenda J.  
dc.contributor.author
Pickart, Andrea  
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Bortolus, Alejandro  
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Peña, Carlos  
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Figueroa, Enrique  
dc.contributor.author
Sytsma, Mark  
dc.date.available
2016-10-05T15:05:46Z  
dc.date.issued
2014-01  
dc.identifier.citation
Castillo, Jesus M.; Grewell, Brenda J.; Pickart, Andrea; Bortolus, Alejandro; Peña, Carlos; et al.; Phenotypic plasticity of invasive Spartina densiflora (Poaceae) aoong a broad latitudinal gradient on the Pacific coast of North America; Botanical Society Of America; American Journal Of Botany; 101; 3; 1-2014; 1-11  
dc.identifier.issn
0002-9122  
dc.identifier.uri
http://hdl.handle.net/11336/7707  
dc.description.abstract
Premise of the study: Phenotypic acclimation of individual plants and genetic differentiation by natural selection within invasive populations are two potential mechanisms that may confer fi tness advantages and allow plants to cope with environmental variation. The invasion of Spartina densifl ora across a wide latitudinal gradient from California (USA) to British Columbia (Canada) provides a natural model system to study the potential mechanisms underlying the response of invasive populations to substantial variation in climate and other environmental variables. Methods: We examined morphological and physiological leaf traits of Spartina densifl ora plants in populations from invaded estuarine sites across broad latitudinal and climate gradients along the Pacifi c west coast of North America and in favorable conditions in a common garden experiment. Key results: Our results show that key foliar traits varied widely among populations. Most foliar traits measured in the fi eld were lower than would be expected under ideal growing conditions. Photosynthetic pigment concentrations at higher latitudes were lower than those observed at lower latitudes. Greater leaf rolling, reduced leaf lengths, and lower chlorophyll and higher carbon concentrations were observed with anoxic sediments. Lower chlorophyll to carotenoids ratios and reduced nitrogen concentrations were correlated with sediment salinity. Our results suggest that the variations of foliar traits recorded in the fi eld are a plastic phenotypic response that was not sustained under common garden conditions. Conclusions: Spartina densifl ora shows wide differences in its foliar traits in response to environmental heterogeneity in salt marshes, which appears to be the result of phenotypic plasticity rather than genetic differentiation.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Botanical Society Of America  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Anoxia  
dc.subject
Foliar Traits  
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Global Climate Change  
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Invasive Plants  
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Phenotip Plasticity  
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Radiation Quality  
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Salinity  
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Salt Marshes  
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Sediment Texture  
dc.subject.classification
Ecología  
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Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Phenotypic plasticity of invasive Spartina densiflora (Poaceae) aoong a broad latitudinal gradient on the Pacific coast of North America  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-09-14T17:37:01Z  
dc.journal.volume
101  
dc.journal.number
3  
dc.journal.pagination
1-11  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
St. Louis  
dc.description.fil
Fil: Castillo, Jesus M.. Universidad de Sevilla; España  
dc.description.fil
Fil: Grewell, Brenda J.. University Of California At Davis; Estados Unidos  
dc.description.fil
Fil: Pickart, Andrea. Humboldt Bay National Wildlife Refuge; Estados Unidos  
dc.description.fil
Fil: Bortolus, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina  
dc.description.fil
Fil: Peña, Carlos. Universidad de Sevilla; España  
dc.description.fil
Fil: Figueroa, Enrique. Universidad de Sevilla; España  
dc.description.fil
Fil: Sytsma, Mark. Portland State University; Estados Unidos  
dc.journal.title
American Journal Of Botany  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3732/ajb.1400014  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.amjbot.org/content/101/3/448.long