Search results for "Halophila stipulacea"

showing 3 items of 3 documents

Searching for the competitive ability of the alien seagrass Halophila stipulacea with the autochthonous species Cymodocea nodosa

2023

The tropical seagrass Halophila stipulacea (Forsskål) Ascherson, 1867 entered in the Mediterranean Sea through the Suez Canal more than 100 years ago. In coastal-marine ecosystems the spatial niche of H. stipulacea is often overlapped with that of native Mediterranean Sea seagrasses and therefore it might out-compete them. Aiming to better understand its invasiveness potential, we monitored a Southern Mediterranean shallow coastal-marine water habitat from August 2010 to August 2011, where H. stipulacea co-occurred with the native seagrass Cymodocea nodosa (Ucria) Ascherson, 1870. Besides, the year-round dynamics of H. stipulacea was also monitored in four periods. To test the hypothesis th…

Settore BIO/07 - Ecologiashallow coastal-marine habitatCymodoceaLiliopsidaCymodoceaceaePlant ScienceHydrocharitaceaeAquatic ScienceHalophilanon-indigenous species (NIS)Mediterranean SeaPlantaeEcology Evolution Behavior and SystematicsAlismatalesCymodocea nodosaEcologyEcological ModelingSettore BIO/02 - Botanica SistematicaCymodocea nodosa Halophila stipulacea invasive alien species (IAS) Mediterranean Sea non-indigenous species (NIS) seagrasses shallow coastal-marine habitatHalophila stipulaceaBiotaTracheophytaInsect ScienceAnimal Science and Zoologyinvasive alien species (IAS)seagrasses
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Halophila stipulacea descriptors in the native area (Red Sea): A baseline for future comparisons with native and non-native populations

2018

Abstract Halophila stipulacea is a small tropical seagrass species native to the Red Sea. Due to its invasive character, there is growing interest in understanding its ability to thrive in a broad range of ecological niches. We studied temporal (February 2014 and July 2014), depth (5, 9, 18 m) and spatial (NB and SB) related dynamics of H. stipulacea meadows in the northern Gulf of Aqaba. We evaluated changes in density, morphometry, biomass, and biochemical parameters alongside the reproductive effort. In both sites, maximal growth and vegetative performance occurred in the summer with a marked increase of 35% in shoot density and 18% in biomass; PAR reduction with season and depth induced…

0106 biological sciencesDepth-adaptationSettore BIO/07 - EcologiaSettore BIO/07Range (biology)Anthropogenic pressuresPhenol contentAquatic ScienceSeagrass Temporal changes Depth-adaptation Anthropogenic pressures Morphometric and population parameters Phenol content Nitrogen storage Stable isotopesOceanography010603 evolutionary biology01 natural sciencesMorphometric and population parametersNitrogen storageSeagrassStable isotopesEcological nicheHalophila stipulaceaBiomass (ecology)biologyEcology010604 marine biology & hydrobiologyBaseline (sea)food and beveragesTemporal changesGeneral Medicinebiology.organism_classificationPollutionSexual reproductionSeagrassShoot
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CAN HALOPHILA STIPULACEA OUTCOMPETE CYMODOCEA NODOSA? A CASE STUDY OF A MEDITERRANEAN SHALLOW WATER HABITAT

2022

The tropical seagrass Halophila stipulacea (Forsskål) Ascherson entered the Mediterranean Sea through the Suez Canal more than 100 years ago. In the coastal-marine ecosystems the spatial niche of H. stipulacea is often overlapped with that of native Mediterranean Sea seagrasses and therefore it might out-compete them. On the basis of previous observations, we monitored for one year a Southern Mediterranean shallow water habitat (North-Western Sicily Island, Italy, Southern Mediterranean Sea), where H. stipulacea co-occurred with the native seagrass Cymodocea nodosa (Ucria) Ascherson. In this paper we compare sites with (impacted sites) and without H. stipulacea (non-impacted sites) to analy…

Settore BIO/02 - Botanica SistematicaHalophila stipulacea non-indigenous species Cymodocea nodosa seagrasses Mediterranean Sea shallow water habitat
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