English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/63372
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Fluctuating asymmetry and Echinospartum horridum fitness components

AuthorsKomac, Benjamin ; Alados, Concepción L.
Issue Date2012
PublisherElsevier
CitationEcological Indicators 18: 252- 258 (2012)
AbstractI[EN] n the last two decades, fluctuating asymmetry (FA) has been used commonly as an indicator of the stress experienced by individual organisms during development, although the technique has not been without controversy. In general, estimates of FA in populations have been positively correlated with measures of stress but, in the few studies in which it has been investigated, the correlations between estimates of FA and stress in individuals have been inconsistent. This study compared the FA in the opposite spines of stems and flowers to other bio-indicators of physiological stress in plants, such as annual crown growth ratio, annual flower production, annual crown death ratio, and branch fractal dimension. The position of an individual Echinospartum horridum within a patch influenced the stress conditions, and influenced its colonization strategy. Plants in the interior of patches are under high intraspecific competition due to negative density feedback (low flower production and branch biomass, and high annual crown death ratio), showed larger flower FA and spines FA repeatability (within-individual variation in FA) than plants at the periphery. Plant growth rates and the FA of spines were negatively correlated, but flower asymmetry and flower production was not significantly correlated, which reflects the capacity of E. horridum to adjust flower production to its developing conditions. We concluded that because organisms respond differently to different conditions, enhanced by the plasticity of plants in the development of morphological structures in response to changes in the environment, it is advisable to use multiple parameters to assess physiological stress in plants. © 2011 Elsevier Ltd. All rights reserved.
Publisher version (URL)http://dx.doi.org/10.1016/j.ecolind.2011.11.028
URIhttp://hdl.handle.net/10261/63372
DOI10.1016/j.ecolind.2011.11.028
Identifiersdoi: 10.1016/j.ecolind.2011.11.028
issn: 1470-160X
Appears in Collections:(IPE) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.