Search results for "ecology evolution behavior and systematics"

showing 2 items of 2 documents

Plant invasions on small Mediterranean islands. An overview

2016

Biological invasions have become one of the main drivers of habitat degradation and a leading cause of biodiversity loss in island ecosystems worldwide. The spread of invasive species poses a particular environmental threat on the islands of the Mediterranean Basin, which are hot spots of biodiversity and contain rare habitats and endemic species, especially on small islands, which are highly vulnerable to biodiversity loss. Following a recent survey, in this paper we aim to provide an overview of the present-day non-native vascular flora of small Mediterranean islands based on a sample of 37 islands located in the middle of the Mediterranean Sea, off the coast of Italy. By comparing the cu…

0106 biological sciencesMediterranean climatebiological invasionsBiodiversitynature conservationsucculencebiological invasionBiology010603 evolutionary biology01 natural sciencesMediterranean Basinecology evolution behavior and systematicsMediterranean seaeradicationEndemismEcology Evolution Behavior and SystematicsAcacia; biological invasions; cactaceae; Carpobrotus; eradication; established alien species; Italy; nature conservation; succulence; threats to global biodiversity; ecology evolution behavior and systematics; plant scienceEcologySettore BIO/02 - Botanica SistematicaAcaciaestablished alien speciesEcology Evolution Behavior and SystematicCarpobrotuestablished alien specieHabitat destructionplant scienceHabitatcactaceaeItalythreats to global biodiversitySettore BIO/03 - Botanica Ambientale E ApplicataCarpobrotusMediterranean Islands010606 plant biology & botany
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Assessing the importance of nursery areas of European hake (Merluccius merluccius) using a body condition index

2017

Abstract In this study, we analysed the variability of reserve storage in juvenile European hake (Merluccius merluccius) off the western coasts of Italy (Central Mediterranean Sea). Reserve storage was measured by the hepatosomatic index (HSI), in relation to environmental and population covariates. HSI has been proved to be a consistent measure of energy storage in gadoids, thus reflecting quantity and quality of food availability for growth. Generalized Additive Models for Location, Scale and Shape (GAMLSS) were used to model the effect of depth, bottom temperature, bottom currents, fish density and fish body size on HSI of juvenile European hake. The results revealed that reserve storage…

0106 biological sciencesSettore BIO/07 - Ecologiadecision sciences (all)nursery grounds010504 meteorology & atmospheric sciencesmedia_common.quotation_subjectPopulationGeneral Decision Sciences01 natural sciencesecology evolution behavior and systematicsCompetition (biology)Mediterranean seahabitat qualityHakeEuropean hake; habitat quality; hepatosomatic index; Mediterranean sea; nursery grounds; recruitment; decision sciences (all); ecology evolution behavior and systematics; ecologyJuvenile14. Life underwaterSettore SECS-S/05 - Statistica SocialeeducationEcology Evolution Behavior and Systematics0105 earth and related environmental sciencesmedia_commonEuropean hakeeducation.field_of_studybiologyEcology010604 marine biology & hydrobiologyGeneralized additive modelMerluccius merlucciusNursery groundbiology.organism_classificationEcology Evolution Behavior and SystematicFisheryHabitatrecruitmentMediterranean seaEnvironmental sciencehepatosomatic indexecology
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