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Abstract:

Field studies evidence shifts between phytoplankton and free-floating plant regimes; yet, it is unclear what drives these shifts and if they are critical transitions (alternative stable states). In this review, we synthesized field and experimental data on free-floating plants (of varying size and phylogenies) and phytoplankton regimes, to assess the effects of these producers on the environment. Nutrient-rich environments promote free-floating plants dominance—regardless of life form—which causes dark and anoxic environments, and nutrient release from sediments. This reinforces free-floating plants dominance, but controls phytoplankton biomass by strong shading (despite high nutrients and low grazing). Phytoplankton dominance renders turbid and oxygen-rich (when producing) environments. We also searched for case studies of regime shifts for free-floating plants and phytoplankton dominance. Most studies showed that when free-floating plants dominance was interrupted, phytoplankton biomass (usually Cyanobacteria) rose steeply. Likewise, when phytoplankton-dominated, the development of dense mats of free-floating plants covers usually controlled phytoplankton. Field evidence that suggests critical transitions include abrupt regime transitions in time and space; yet, evidence including indoor controlled experiments and mathematical models is needed for conclusive evidence of alternative stable states to be drawn. © Springer International Publishing Switzerland 2014.

Registro:

Documento: Artículo
Título:Regime shifts between free-floating plants and phytoplankton: A review
Autor:de Tezanos Pinto, P.; O’Farrell, I.
Filiación:Departamento de Ecología, Genética y Evolución, IEGEBA (CONICET-UBA), Universidad de Buenos Aires, Buenos Aires, C1428EHA, Argentina
Palabras clave:Alternative stable states; Free-floating plants; Phytoplankton; Regime shifts; anoxic conditions; data set; dominance; ecosystem function; field method; mathematical analysis; nutrient enrichment; phylogeny; phytoplankton
Año:2014
Volumen:740
Número:1
Página de inicio:13
Página de fin:24
DOI: http://dx.doi.org/10.1007/s10750-014-1943-0
Título revista:Hydrobiologia
Título revista abreviado:Hydrobiologia
ISSN:00188158
CODEN:HYDRB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00188158_v740_n1_p13_deTezanosPinto

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Citas:

---------- APA ----------
de Tezanos Pinto, P. & O’Farrell, I. (2014) . Regime shifts between free-floating plants and phytoplankton: A review. Hydrobiologia, 740(1), 13-24.
http://dx.doi.org/10.1007/s10750-014-1943-0
---------- CHICAGO ----------
de Tezanos Pinto, P., O’Farrell, I. "Regime shifts between free-floating plants and phytoplankton: A review" . Hydrobiologia 740, no. 1 (2014) : 13-24.
http://dx.doi.org/10.1007/s10750-014-1943-0
---------- MLA ----------
de Tezanos Pinto, P., O’Farrell, I. "Regime shifts between free-floating plants and phytoplankton: A review" . Hydrobiologia, vol. 740, no. 1, 2014, pp. 13-24.
http://dx.doi.org/10.1007/s10750-014-1943-0
---------- VANCOUVER ----------
de Tezanos Pinto, P., O’Farrell, I. Regime shifts between free-floating plants and phytoplankton: A review. Hydrobiologia. 2014;740(1):13-24.
http://dx.doi.org/10.1007/s10750-014-1943-0