Os públicos do teatro comunitário: um estudo de caso na PELE - Espaço de Contacto Social e Cultural

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Évolution de la participation sociale d’un élève avec TSA en séance de motricité à l’école maternelle.

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Évolution de la participation sociale d’un élève avec TSA en séance de motricité à l’école maternelle.

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Influence de la structuration de l’apprentissage coopératif sur les relations filles-garçons en éducation physique

International audienceDans cette recherche, nous étudions l’influence de la structuration du dispositif d’apprentissage coopératif sur les biais perceptifs et comportementaux favorables aux garçons en basket-ball. Cent élèves (50 filles et 50 garçons) de 9-10 ans issus de quatre classes ont pratiqué le basket-ball pendant huit séances. Deux classes ont pratiqué dans un dispositif de coopération simple, alors que les deux autres ont été soumises à un dispositif structuré. Les biais perceptifs et comportementaux des élèves ont été mesurés à la première et à la dernière séance. Les résultats montrent que le dispositif structuré atténue les biais, contrairement au dispositif de coopération simpl

Représentations professionnelles des enseignants d’éducation physique envers l’inclusion des élèves en situation de handicap

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Détermination de perceptions différenciées d’enseignants d’Éducation physique et sportive envers l’inclusion des élèves en situation de handicap

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A Preliminary Exploration of the Inclusion of a Child With Autism in a Preschool With Complex Dynamic Systems

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Seasonal and functional variation in the trophic base of intermittent Alpine streams

In high-altitude Alpine streams, seasonal cycles of snowmelt, glacial melt, and rainfall drive variation in the availability of algal food resources. Yet, high-altitude streams also exhibit varying degrees of flow intermittency, ranging from solely winter-drying streams to others that dry periodically throughout summer and autumn. These environmental drivers may interact in different ways to determine the functional trophic base of macroinvertebrates inhabiting high-altitude streams. Here, we estimated the proportional contribution of autochthonous resources to the assimilated diets of benthic macroinvertebrates in 26 headwater streams of Val Roseg, a high Alpine glacial catchment, using stable isotope analysis (δ13C and δ15N) of different macroinvertebrate families and their potential food sources. We compared dietary estimates along a gradient of flow intermittency and across three seasons (Alpine spring, summer, and autumn). Assimilation from autochthonous sources was highest for collector-gatherers and filter feeders in spring, and for grazers in summer. Grazers had higher estimated assimilation from autochthonous sources in intermittent streams than in perennial streams, particularly in summer, while collector-gatherers showed little effect of flow intermittency on dietary estimates. However, responses were highly taxon-specific, with different responses to variation in flow intermittency and season across families within functional groups. Our results suggest that frequent summer-drying events represent tradeoffs between greater access to algal food resources and a higher risk of desiccation, but that differing life history and functional feeding traits across macroinvertebrate taxa drive marked variation in the risks or benefits associated with inhabitants of drying streams.ISSN:0024-3590ISSN:1939-559

Effects of an experimental increase in flow intermittency on an alpine stream

International audienceFlow intermittency occurs naturally in alpine streams. However, changing rainfall patterns and glacier retreat are predicted to increase the occurrence of flow intermittency in alpine catchments, with largely unknown effects on ecosystem structure and function. We conducted a flow manipulation experiment within a headwater stream of Val Roseg, a glacierized alpine catchment, to determine the effects of increased flow intermittency on aquatic macroinvertebrates, periphyton, benthic organic matter, and trophic structure. Compared to an adjacent reference channel, an increase in flow intermittency reduced macroinvertebrate density, taxa richness, and the proportion of rheophilic taxa. Density and richness remained low in the manipulated channel after resumption of natural flow. Flow intermittency did not affect organic matter standing stocks, but increased assimilation of periphyton by aquatic macroinvertebrates. Predation on aquatic invertebrates by riparian spiders also increased. We attribute many of these patterns to the timing of drying, which likely excluded summer-growing cohorts of rheophilic, aerial dispersers. This study suggests that reductions in summer glacial melt and rainfall events might increase flow intermittency and lead to fundamental changes in diversity and function of alpine fluvial networks