Search results for "traits"

Short-term exposure to concurrent biotic and abiotic stressors may impair farmed molluscs performance

2022

Global warming, through increasing temperatures, may facilitate the spread and proliferation of outbreak-forming species which may find favourable substrate conditions on artificial aquaculture structures. The presence of stinging organisms (cnidarian hydroids) in the facilities fouling community are a source of pollution that can cause critical problems when in-situ underwater cleaning processes are performed. Multiple stressor experiments were carried out to investigate the cumulative effect on farmed mussels' functional traits when exposed to realistic stressful conditions, including presence of harmful cnidarian cells and environmental conditions of increasing temperature and short-term…

Functional traits, mechanistic bioenergetics and microclimatic downscaling of marine ectotherms

2014

Functional traits of two co-occurring sea urchins across a barren/forest patch system

2013

Abstract Temperate rocky reefs may occur in two alternative states (coralline barrens and erect algal forests), whose formation and maintenance are often determined by sea urchin grazing. The two sea urchin species Paracentrotus lividus and Arbacia lixula are considered to play a similar ecological role despite their differing morphological traits and diets. The patchy mosaic areas of Ustica Island, Italy, offer an ideal environment in which to study differences in the performance of P. lividus and A. lixula in barren versus forest states. Results show that the two sea urchin species differ in diet, trophic position, grazing adaptation, movement ability and fitness in both barren and forest…

Predictive mechanistic bioenergetics to model habitat suitability of shellfish culture in coastal lakes

2014

Quantitative tools based on mechanistic modelling of functional traits able to enhance the sustainability of aquaculture and most other human activities (i.e. reducing the likelihood of detrimental impacts optimising productions), are especially important factors in the decision to site aquaculture facilities in coastal lakes, ponds and lagoons and, in the case of detrimental impact, to adopt mitigation measures. We tested the ability of mechanistic functional trait based models to predict life history traits of cultivable shellfish in shallow coastal lakes. Dynamic Energy Budget (DEB) models were run to generate spatially explicit predictions of Mytilus galloprovincialis life history (LH) …

Ritratti in Sicilia tra Sei e Ottocento

2019

Si propone una significativa esemplificazione di ritratti di aristocratici siciliani di età moderna. Tra i ritratti tardo-cinquecenteschi vanno ricordati quelli commissionati dal cardinale Ludovico II Torres. Altri emblematici ritratti, esplicativi della moda, del costume e della ricchezza dei monili del XVII secolo, sono quelli della famiglia Branciforti dalla consorte di Francesco, Giovanna d’Austria, a Ercole, Fabrizio e Giuseppe Branciforti. A significant exemplification of portraits of Sicilian aristocrats of the modern age is proposed. Among the late sixteenth-century portraits are those commissioned by Cardinal Ludovico II Torres.Other emblematic portraits, explaining fashion, costum…

Autobiographical Memory, Personality, and Facebook Mementos

2019

The present study analyzed the relationships between directive, self and social functions of autobiographical memory, personality traits, as defined by the Five Factor model, and the Facebook mementos. We defined Facebook mementos as objective measures of the textual (i.e., Facebook Status Updating) and visual (i.e., Photos uploading) information people record on their Facebook profiles. Questionnaires gathered data from a sample of 193 Italian Facebook users (148 female; 45 male; age M = 22.8, SD = 6.8). Results at path analysis using AMOS showed direct significant positive associations between personality traits related to extraversion, openness, neuroticism, conscientiousness and Faceboo…

Development and Maintenance of Self-Disclosure on Facebook: The Role of Personality Traits

2019

This study explored the relationships between Facebook self-disclosure and personality traits in a sample of Italian users. The aim was to analyze the predictive role of Big Five personality traits on different parameters of breadth and depth of self-disclosed behaviors online. Facebook users, aged between 18 and 64 years of age ( M age = 25.3 years, SD = 6.8; N = 958), of which 51% were female, voluntarily completed an online survey assessing personality traits and Facebook self-disclosure. Results at a series of hierarchical regression analyses significantly corroborated the hypotheses that high extroverted and openness people tend to disclose on Facebook a significant amount of personal …

Happiness by personality traits: the mediating role of decision-making tendencies

Background: Prior work has shown that happiness is associated with high levels of extroversion and low levels of neuroticism; whereas conscientiousness and agreeableness have also been found to be moderately associated with subjective well-being and happiness.Nevertheless, the reasons why personality traits are linked to subjective well-being remain poorly interpreted. As a consequence, the identification of mediating variables could be strategic for better understanding of the reasons for well-being. One promising avenue has been the focus on individuals’ tendencies in decision-making which may alter happiness levels. The relationships between well-being and maximizing vs. satisficing tend…

Personality and Optimal Experience in Adolescence: Implications for Well-Being and Development

2013

Past research has repeatedly identified relations between optimal experience—or flow—and well-being across the lifespan. In the attempt to identify the conditions favoring this experience, some studies took into account personality traits. While most of them operationalized flow in terms of intensity, we presently focused on perceived occurrence versus absence of flow. Specifically, we investigated the relations between flow occurrence, hedonic and eudaimonic well-being, activities associated with flow, and personality in adolescence. A group of 408 Italian teenagers (mean age = 17.31; SD = 1.13) were administered Flow Questionnaire, Satisfaction with Life Scale, Positive and Negative Affec…

Do personality traits and self-regulatory processes affect decision-making tendencies?

2018

Objective: This research attempted to clarify the role played by personality traits and self-regulated motivation in affecting decision-making tendencies. Method: Study 1 (n = 209) examined whether the Big Five personality traits predict minimising, maximising, and satisficing tendencies; Study 2 (n = 460) tested the mediating role of self-regulatory orientations in the relationship between personality traits and decision-making tendencies by performing structural equation modelling with latent variables. Results: Conscientiousness emerged as the strongest positive predictor of maximising, whereas openness to experience, conscientiousness, and agreeableness emerged as negative predictors of…