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dc.contributor.author
Villar-Argaiz, M.
dc.contributor.author
Balseiro, Esteban Gabriel
dc.contributor.author
Modenutti, Beatriz Estela
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Souza, María Sol
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Bullejos, F. J.
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Medina-Sánchez, J. M.
dc.contributor.author
Carrillo, P.
dc.date.available
2018-09-06T15:49:56Z
dc.date.issued
2018-07
dc.identifier.citation
Villar-Argaiz, M.; Balseiro, Esteban Gabriel; Modenutti, Beatriz Estela; Souza, María Sol; Bullejos, F. J.; et al.; Resource versus consumer regulation of phytoplankton: testing the role of UVR in a Southern and Northern hemisphere lake; Springer; Hydrobiologia; 816; 1; 7-2018; 107-120
dc.identifier.issn
0018-8158
dc.identifier.uri
http://hdl.handle.net/11336/58524
dc.description.abstract
Models predict that phytoplankton is bottom-up regulated by resources and top-down controlled by consumers. However, how the strength of these controls varies with UV radiation (UVR) is not well known. In this study, we test the hypothesis that the phosphorus (P) content of phytoplankton affects the role that UVR exerts strengthening or weakening the resource and consumer control on distinct stoichiometric and functional phytoplankton traits. To accomplish this, we coupled field meso- and microcosms in a split-plot design using UVR treatments at the plot level and nutrients and zooplankton (presence/absence) at the subplot level, in two mountain lakes characterized by their P-sufficient (La Caldera) and P-deficient phytoplankton (Los Cántaros). We found that the addition of nutrients decreased phytoplankton C:P in both lakes, but enhanced primary production and chlorophyll a only under UVR in La Caldera. Also, the effects of zooplankton on phytoplankton varied between lakes and UVR conditions, and increased primary production and chlorophyll a under UVR in La Caldera, but not in Los Cántaros. These results suggest that differences in the stoichiometric aspects associated with the P content in phytoplankton play a key role in how UVR affects resource and consumer controls, with much weaker effects in P-deficient food webs.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Food Web Control
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Nutrients
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Stoichiometry
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Uv Radiation
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Zooplankton
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Resource versus consumer regulation of phytoplankton: testing the role of UVR in a Southern and Northern hemisphere lake
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-31T14:07:56Z
dc.journal.volume
816
dc.journal.number
1
dc.journal.pagination
107-120
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Villar-Argaiz, M.. Universidad de Granada; España
dc.description.fil
Fil: Balseiro, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Modenutti, Beatriz Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Souza, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Bullejos, F. J.. University of Oslo; Noruega
dc.description.fil
Fil: Medina-Sánchez, J. M.. Universidad de Granada; España
dc.description.fil
Fil: Carrillo, P.. Universidad de Granada; España
dc.journal.title
Hydrobiologia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10750-017-3251-y
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1007/s10750-017-3251-y


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