0000000001225805

AUTHOR

M. Graziano

showing 3 related works from this author

Differences in the growth cycle ofRuppia cirrhosa(Petagna) Grande in a Mediterranean shallow system

2014

Ruppia cirrhosa growth cycle was analysed in a southern Mediterranean shallow system throughout 1 year. We examined the temporal variation in R. cirrhosa cover percentage, shoot density, biomass, leaf length, no. flowers m-2 and no. fruits m-2 in two groups of pond characterized by differences in some environmental parameters. Ponds were comparable for salinity and temperature but they differed for other environmental parameters such as water depth, level of suspended organic matter and chlorophyll a (CHL a). Biological parameter values were higher in B ponds, characterized by lower values of water depth, suspended organic matter and CHL a. A seasonal trend for all considered biological par…

0106 biological sciencesMediterranean climateBiomass (ecology)Chlorophyll abiologySettore BIO/02 - Botanica Sistematica010604 marine biology & hydrobiologyPlant Sciencebiology.organism_classificationAnnual cycleAquatic macrophytes growth cycle Mediterranean Sea salt works systems Ruppia cirrhosa010603 evolutionary biology01 natural sciencesSalinitychemistry.chemical_compoundMediterranean seaAgronomychemistryRuppia cirrhosaSettore BIO/03 - Botanica Ambientale E ApplicataShootBotanyEnvironmental scienceEcology Evolution Behavior and SystematicsPlant Biosystems - An International Journal Dealing with all Aspects of Plant Biology
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Latitudinal- and local-scale variations in a rocky intertidal interaction web

2015

Natural assemblages are structured by a complex combination of positive and negative interactions, and the relative importance of each interaction can vary across spatial scales. By using a simple interaction web (barnacles-grazers-microphytobenthos) in a rocky intertidal system, we tested the hypothesis that the relative strength of positive and negative interactions would vary as a function of different environmental stress between 2 latitudinal levels and local environmental conditions. We manipulated the cover of barnacles and the presence of limpets at 2 sites in northern and southern Italy and non-destructively examined the response of microphyto - benthos (MPB) (photosynthetic biomas…

BarnacleSettore BIO/07 - EcologiaIndirect effectEvolutionIntertidal zoneDensity dependenceBarnacles; Density dependence; Environmental stress; Facilitation; Grazing; Indirect effects; Interaction web; Local stressors; Microphytobenthos; Aquatic Science; Ecology; Ecology Evolution Behavior and SystematicsEnvironmental stressBiologyAquatic ScienceBenthosBehavior and SystematicsInteraction webRelative species abundanceMicrophytobenthoEcology Evolution Behavior and SystematicsTrophic levelAbiotic componentBiomass (ecology)EcologyEcologyEnvironmental streMicrophytobenthosLocal stressorsLocal stressorGrazingIndirect effectsHabitatFoundation speciesFacilitationBarnacles
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Vulnerability of algae and seagrasses to climate change

2013

Biodiversity is undergoing rapid and worrying changes, partially driven by anthropogenic activities. Human impacts and climate change (e.g. increasing temperature and ocean acidification) represent the most serious threats to biodiversity and ecosystem functioning. Aim of this study was to assess, analysing the scientific literature and published data, how climate change can affect algae and seagrasses, evaluating their vulnerability and the possibility to use these organisms as indicators. Algae and seagrasses have a central role for several important ecological processes in aquatic ecosystems, and their loss can lead repercussions for the ecological function. Climate stressors affected ac…

algaeclimate changeglobal and local stressorSettore BIO/02 - Botanica SistematicaSettore BIO/03 - Botanica Ambientale E ApplicataMediterranean Seamanagement recommendationseagrassesbiodiversity
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