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- W2050798909 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 414:107-116 (2010) - DOI: https://doi.org/10.3354/meps08729 Canopy-forming species mediate the effects of disturbance on macroalgal assemblages on Portuguese rocky shores Iacopo Bertocci1,*, Francisco Arenas1, Miguel Matias1,2, Stefano Vaselli1, Rita Araújo1, Helena Abreu1, Rui Pereira1, Raquel Vieira1, Isabel Sousa-Pinto1,3 1CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Rua dos Bragas, 289, 4050-123, Porto, Portugal 2Centre for Research on Ecological Impacts of Coastal Cities, Marine Ecology Lab A11, School of Biological Sciences, The University of Sydney, New South Wales 2006, Australia 3Department of Botany, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 1191, 4150-181, Porto, Portugal *Email: ibertocci@ciimar.up.pt ABSTRACT: Understanding the relationship between biodiversity and stability is a central issue in ecology. This is particularly needed under current scenarios of biodiversity loss due to multiple anthropogenic stressors. In this study, we experimentally examined the combined effects of the loss of key functional species (canopy-forming macroalgae) and mechanical disturbance on macroalgal intertidal assemblages at 2 sites along the rocky coast of northern Portugal. We tested the model that the canopy may buffer the effects of disturbance on associated organisms, leading to the logical hypothesis that effects of mechanical disturbance would be lower where the canopy was left intact compared to patches where it was experimentally removed. The proposed model was supported by multivariate and univariate results, as both differences in the structure of whole assemblages and in the abundance of individual taxa between disturbed and undisturbed assemblages were reduced or prevented by the presence of the canopy, independently of the examined site. Specifically, only in the absence of the canopy did disturbance determine a decrease in the abundance of the red alga Ahnfeltiopsis devoniensis and an increase in articulated coralline algae of the genus Corallina. Present findings have relevant implications for understanding and predicting the consequences of multiple factors responsible for the erosion of biodiversity occurring globally in coastal areas, as current rates of loss of canopy-forming species in urban areas may be expected to exacerbate the effects of predicted climate change, including modifications in intensity and temporal patterns of storms. KEY WORDS: Biodiversity · Multiple stressors · Canopy algae · Disturbance · Rocky intertidal Full text in pdf format PreviousNextCite this article as: Bertocci I, Arenas F, Matias M, Vaselli S and others (2010) Canopy-forming species mediate the effects of disturbance on macroalgal assemblages on Portuguese rocky shores. Mar Ecol Prog Ser 414:107-116. https://doi.org/10.3354/meps08729 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 414. Online publication date: September 13, 2010 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2010 Inter-Research." @default.
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- W2050798909 title "Canopy-forming species mediate the effects of disturbance on macroalgal assemblages on Portuguese rocky shores" @default.
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