title: Photosynthetic performance of restored and natural mangroves under different environmental constraints.
abstract: We hypothesized that the photosynthetic performance of mangrove stands restored by the single planting of mangroves species would be lowered due to residual stressors. The photosynthetic parameters of the vegetation of three planted mangrove stands, each with a different disturbance history, were compared to reference sites and correlated with edaphic environmental variables. A permutational analysis of variance showed significant interaction when the factors were compared, indicating that the photosynthetic parameters of the restoration areas differed from the reference sites. A univariate analysis of variance showed that all the photosynthetic parameters differed between sites and treatments, except for photosynthetic efficiency (αETR). The combination of environmental variables that best explained the variations observed in the photosynthetic performance indicators were Cu, Pb and elevation disruptions. Fluorescence techniques proved efficient in revealing important physiological differences, representing a powerful tool for rapid analysis of the effectiveness of initiatives aimed at restoring coastal environments.
authors.affiliation: Universidade Federal de Santa Catarina, Departamento de Ecologia e Zoologia, Campus Universitário, Trindade, 88040-900 Florianópolis, SC, Brazil. rovaias@hotmail.com
authors.forename: André Scarlate
authors.initials: AS
authors.lastname: Rovai
authors.forename: José Bonomi
authors.initials: JB
authors.lastname: Barufi
authors.forename: Paulo Roberto
authors.initials: PR
authors.lastname: Pagliosa
authors.forename: Fernando
authors.initials: F
authors.lastname: Scherner
authors.forename: Moacir Aluísio
authors.initials: MA
authors.lastname: Torres
authors.forename: Paulo Antunes
authors.initials: PA
authors.lastname: Horta
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Simonassi
authors.forename: Daiane Paula Cunha
authors.initials: DP
authors.lastname: Quadros
authors.forename: Daniel Lázaro Gallindo
authors.initials: DL
authors.lastname: Borges
authors.forename: Eduardo Juan
authors.initials: EJ
authors.lastname: Soriano-Sierra
mesh_terms: D032407:Avicennia / Q000502:physiology*; D004777:Environment; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis; D010788:Photosynthesis / Q000502:physiology*; D013312:Stress, Physiological; D053833:Wetlands
chemical_list: D004785:Environmental Pollutants
keywords: Avicennia schaueriana; Chlorophyll a fluorescence; Environmental impact; Mangrove restoration; PAM