Titre : Sympatrie

Sympatrie : Questions médicales fréquentes

Termes MeSH sélectionnés :

Screen Time
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{ "@type": "Question", "name": "La sympatrie peut-elle être observée chez les mammifères ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Oui, de nombreuses espèces de mammifères peuvent coexister en sympatrie dans un même habitat." } }, { "@type": "Question", "name": "Quels signes indiquent une sympatrie chez les oiseaux ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "L'observation de plusieurs espèces d'oiseaux se nourrissant ou nidifiant dans la même zone est un signe." } }, { "@type": "Question", "name": "Comment la sympatrie est-elle mesurée ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Elle est mesurée par des indices de diversité et des analyses de distribution des espèces." } }, { "@type": "Question", "name": "Quels symptômes indiquent une compétition en sympatrie ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Une diminution des ressources et des changements de comportement peuvent être observés." } }, { "@type": "Question", "name": "La sympatrie cause-t-elle des maladies ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Non, la sympatrie en elle-même ne cause pas de maladies, mais peut influencer la santé des espèces." } }, { "@type": "Question", "name": "Quels signes de stress peuvent apparaître en sympatrie ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des comportements agressifs ou des changements alimentaires peuvent indiquer du stress." } }, { "@type": "Question", "name": "Les espèces en sympatrie montrent-elles des adaptations ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elles peuvent développer des adaptations morphologiques ou comportementales pour coexister." } }, { "@type": "Question", "name": "Comment la sympatrie affecte-t-elle la reproduction ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Elle peut entraîner des mécanismes de sélection sexuelle pour éviter l'hybridation." } }, { "@type": "Question", "name": "Comment prévenir la perte de sympatrie ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "La protection des habitats naturels et la régulation des activités humaines sont essentielles." } }, { "@type": "Question", "name": "Quelles lois protègent la sympatrie ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Des lois sur la conservation de la faune et des habitats protègent les espèces en sympatrie." } }, { "@type": "Question", "name": "Comment sensibiliser à la sympatrie ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Des campagnes éducatives et des programmes de sensibilisation peuvent aider à préserver la biodiversité." } }, { "@type": "Question", "name": "Quel rôle jouent les ONG dans la sympatrie ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Les ONG œuvrent pour la conservation des espèces et la protection des habitats en sympatrie." } }, { "@type": "Question", "name": "Comment les citoyens peuvent-ils aider ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Les citoyens peuvent participer à des projets de conservation et signaler les espèces menacées." } }, { "@type": "Question", "name": "Y a-t-il des traitements pour les espèces en sympatrie ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les traitements visent généralement à gérer les populations et à préserver la biodiversité." } }, { "@type": "Question", "name": "Comment gérer la compétition en sympatrie ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Des stratégies de conservation et de gestion des habitats peuvent réduire la compétition." } }, { "@type": "Question", "name": "Les interventions humaines affectent-elles la sympatrie ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'urbanisation et l'agriculture peuvent perturber les habitats et la sympatrie." } }, { "@type": "Question", "name": "Quelles sont les stratégies de conservation en sympatrie ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "La création de réserves naturelles et la restauration des habitats sont des stratégies clés." } }, { "@type": "Question", "name": "Comment les zoos contribuent-ils à la sympatrie ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Les zoos participent à la conservation des espèces et à l'éducation sur la biodiversité." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir en sympatrie ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des conflits interspécifiques et une pression sur les ressources peuvent survenir." } }, { "@type": "Question", "name": "La sympatrie entraîne-t-elle des hybridations ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la sympatrie peut favoriser l'hybridation entre espèces proches, affectant la biodiversité." } }, { "@type": "Question", "name": "Quels impacts sur l'écosystème en sympatrie ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "La sympatrie peut modifier les dynamiques écologiques et la structure des communautés." } }, { "@type": "Question", "name": "Comment la sympatrie affecte-t-elle la survie des espèces ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "La compétition accrue peut réduire les chances de survie de certaines espèces en sympatrie." } }, { "@type": "Question", "name": "Les maladies se propagent-elles en sympatrie ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la proximité des espèces peut faciliter la transmission de maladies entre elles." } }, { "@type": "Question", "name": "Quels facteurs augmentent la sympatrie ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "La disponibilité des ressources et la diversité des habitats favorisent la sympatrie." } }, { "@type": "Question", "name": "Comment le changement climatique affecte-t-il la sympatrie ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Le changement climatique peut modifier les habitats et influencer la sympatrie des espèces." } }, { "@type": "Question", "name": "Quels rôles jouent les prédateurs en sympatrie ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Les prédateurs peuvent influencer la distribution et la coexistence des espèces en sympatrie." } }, { "@type": "Question", "name": "Les invasions biologiques affectent-elles la sympatrie ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les espèces envahissantes peuvent perturber les interactions en sympatrie et menacer les espèces natives." } }, { "@type": "Question", "name": "Quel impact a l'urbanisation sur la sympatrie ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "L'urbanisation peut fragmenter les habitats et réduire les opportunités de sympatrie." } } ] } ] }

Sources (10000 au total)

Watching the watchers: assessing the nature and extent of children's screen time using wearable cameras.

Children's screen use has increased rapidly in recent years, yet little is known about this use in real-time due to reliance on self-report or proxy data sources. Screens provide benefits such as educ... Children aged 11-13 years took part in the New Zealand Kids'Cam project in 2014/2015. Each child wore a camera that passively captured images of their surroundings every 7 seconds. Images from 108 chi... Children spent over a third of their time on screens, including over half their time after 8pm. Television accounted for the highest proportion of screen time (42.4%), followed by computers (32.0%), m... Guidelines are needed to promote healthy screen time behaviour among children. Further research is also needed to monitor the impact of screens on children's wellbeing, including any socio-demographic...

The role of parental congruence in pre-school children's screen time, moderated by parental education.

This study investigated whether parental congruency regarding screen time (ST) is associated with ST in pre-school children. In addition, we investigated whether parental education levels moderated th... A cross-sectional study was conducted in 2015-2016 in Finland (N = 688). Parents completed a questionnaire reporting their children's sedentary behaviour, their parental congruency regarding ST rules,... Children of parents with higher congruence regarding ST rules engaged in less ST, this was moderated by parental education levels. Children whose parents had a high level of education and parents' who... Children of parents who agree on ST rules engaged in less ST compared with children of parents who do not agree on ST rules. Providing advice to parents regarding parental congruency could be the focu...

Appearance satisfaction mediates the relationship between recreational screen time and depressive symptoms in adolescents.

Research suggests there is an association between high levels of recreational screen time and depression among adolescents; however, mechanisms driving this association remain unknown. The present stu... Longitudinal data on screen time, depressive symptoms, disordered eating behaviors, and appearance and weight satisfaction from 304 adolescents (194 females, M... Results revealed appearance dissatisfaction mediated the direct effect of recreational screen time on depressive symptoms (Estimate = 0.48, SE = .18, 95% CI [0.12, 0.84]), and that recreational screen... These findings suggest that modulating screen time may be an efficacious strategy to reduce appearance dissatisfaction and depressive symptoms during adolescence....

Are There Bidirectional Influences Between Screen Time Exposure and Social Behavioral Traits in Young Children?

Screen time in early childhood has been associated with children's prosocial and behavioral skills; however, the directionality of this relationship is unclear. We aimed to determine the direction of ... This was a population-based, prospective cohort study with data across 5 time points. We examined the reciprocal relationships between caregiver-reported children's screen time at 12, 18, 24, 36, and ... A multiple imputation data set and complete data from 229 participants were included in the analyses. Screen time at 12, 18, and 36 months predicted nonsocial behavioral traits at 54 months. Cross-lag... Screen time in early childhood has lagged influences on social skills and nonsocial behaviors; the reverse relationship is not found. Close monitoring of social behaviors may be warranted in the setti...

Associations of parental attitudes and health behaviors with children's screen time over four years.

Parents are significantly important in shaping the screen use of children within a family system. This study aimed to examine the associations of Chinese children's screen time (ST) over four years wi... The current study utilized data from two waves (2011 and 2015) of the China Health and Nutrition Survey (CHNS), including 1,941 mother-father-child triads in 2011 and 2,707 mother-father-child triads ... Paternal ST (β = 0.09, p < 0.001), maternal ST (β = 0.10, p < 0.001), and paternal alcohol drinking (β = 0.30, p < 0.05) were positively associated with children's ST. In addition, maternal smoking ha... Children establish a healthy lifestyle within the family system. From the perspective of the healthy family climate, the current study suggests that future programs for reducing children's ST should b...

Association of Physical Activity and Screen Time With Body Mass Index Among US Adolescents.

The Physical Activity Guidelines Advisory Committee Scientific Report identified important research gaps to inform future guidance for adolescents, including limited evidence on the importance of sede... To identify the independent associations of physical activity and screen time categories, and the interactions between physical activity and screen time categories, with body mass index (BMI) and over... This cross-sectional study used data from the Adolescent Brain Cognitive Development (ABCD) Study collected from September 10, 2018, to September 29, 2020. Data were analyzed from July 8 to December 2... Categories of total step count per day (with 1000 to 6000 steps per day indicating low, >6000 to 12 000 steps per day indicating medium, and >12 000 steps per day indicating high), as measured by a we... Participant BMI was calculated as weight in kilograms divided by height in meters squared and converted into sex- and age-specific percentiles in accordance with the Centers for Disease Control and Pr... Among 5797 adolescents included in the analytic sample, 50.4% were male, 61.0% were White, 35.0% had overweight or obesity, and the mean (SD) age was 12.0 (0.6) years. Mean (SD) reported screen time u... In this cross-sectional study, a combination of low screen time and high step count was associated with lower BMI percentile in adolescents. These results suggest that high step count may not offset h...

Screen time and social-emotional skills in preschoolers with developmental, behavioural or emotional issues in Singapore.

This study aimed to determine patterns of screen viewing time (SVT) in preschool children with developmental, behavioural or emotional (DBE) issues, and to identify its relationship with social-emotio... This cross-sectional study involved children aged 0-5 years who were referred to a developmental paediatric clinic for DBE issues. Parents completed a screen time questionnaire, and the Devereux Early... Among 225 children (mean age: 32.4 months), mean daily SVT was 138 minutes. More than half (51.1%) of the children had clinical features of language delay, while 26.6% had features suggestive of autis... Children with DBE issues are exposed to SVT at a very young age and have significantly more screen time than their peers. It is crucial to guide parents to reduce SVT in early childhood, particularly ...

Effect of Applying Best Practices for Physical Activity and Screen Time to Family Childcare Homes.

Early childcare has been identified as an influential setting for children's physical activity. Our objective was to determine whether children aged 2 to 5 years had more accelerometer-measured minute... We analyzed baseline 2-day observation data collected by using the Environment and Policy Assessment and Observation measure from a cluster-randomized trial. Multilevel linear regression models assess... All FCCH caregivers (N = 120) in our study were female, and 67.5% were Hispanic. Participating children (N = 349) were 52.1% female and 57.4% Hispanic. A higher score among caregivers for physical act... Children with caregivers who used more best practices for physical activity and screen time had higher activity levels and spent less time sedentary. These findings could help policy makers and people...