Results 11 to 20 of about 1,239 (210)

Influence of shellfish farming activities on nitrification, nitrate reduction to ammonium and denitrification at the water-sediment interface of the Thau lagoon, France [PDF]

open access: yes, 1997
The seasonal patterns of nitrification, denitrification and dissimilatory ammonium production (DAP) rates were studied in the sediment of 2 stations in the Thau lagoon (south of France).
Bianchi, Micheline   +3 more
core   +3 more sources

Etude exploratoire de l’entrepreneuriat responsable au Maroc. L’écosystème entrepreneurial marocain joue-t-il un rôle de catalyseur de l’entrepreneuriat responsable ?

open access: yesRevue Marocaine de l'Entrepreneuriat, de l'Innovation et du Management, 2019
L’objectif de cet article est d’explorer l’écosystème entrepreneurial marocain et son adéquation avec l’entrepreneuriat responsable. Nous tenterons de répondre à la question de recherche suivante : le Maroc offre-t-il un cadre stimulant à la création d ...
Meriem FILALI
doaj   +1 more source

Écosystème de représentations et apprentissage de la conception

open access: yesSHS Web of Conferences, 2018
L’article construit une articulation des notions d’écosystème de représentations, d’apprentissage et de conception. Le modèle descriptif proposé permet d’interroger l’impact d’une altération de l’écosystème de représentations sur l’apprentissage de la ...
Milovanovic Julie   +3 more
doaj   +1 more source

Restauration de la Tourbière de Landemarais, vingt années de suivi [PDF]

open access: yesSciences, Eaux & Territoires, 2011
Procéder à la restauration de la dynamique naturelle d’un écosystème passe par un suivi scientifique efficace des opérations et de leurs effets écologiques.
CLÉMENT, Bernard   +3 more
doaj  

Engaging the public in plant science: Communication facilitators and barriers of scaling up a citizen science campaign

open access: yesPeople and Nature, EarlyView.
Abstract Volunteers have been involved in nature observations for decades through citizen science initiatives, providing large data sets as well as problem identification that allow a more complete understanding of many natural phenomena. Although communication is a core component in citizen science, the key factors that determine its effectiveness in ...
Kristiina Gibson   +18 more
wiley   +1 more source

écosystème numérique [PDF]

open access: yesSHS Web of Conferences, 2022
Jacquot Kévin, Lequay Hervé
doaj   +1 more source

Nkolandom et ses Abris Sous Roche (Cameroun Meridional) : Étude Du Materiel Archéologique Et Occupations Humaines Depuis 3000 Ans [PDF]

open access: yesVestiges: Traces of Record, 2022
La zone d’étude de ce travail fut encore hier, ignorée par les archéologues pour des raisons sanitaires, idéologiques et climatiques. La culture matérielle exhumée et étudiée montre que la zone a été anciennement occupée par des peuples chasseurs ...
Mandeng Jean-Robert
doaj  

Ecosystem Services: Response [PDF]

open access: yesScience, 2013
C. Obst et al. provide a welcome opportunity to clarify the difference between environmental-economic cost-benefit analyses (such as ours) and environmental accounting exercises [such as the UN-SEEA ([ 1 ][1], [ 2 ][2]) initiative]. Accounting studies attempt to assess the total value of goods related to ecosystem services in a manner comparable to ...
Bateman, Ian   +24 more
openaire   +5 more sources

From passion to illegality: Understanding succulent consumers' decision to participate in the illegal online wildlife trade

open access: yesPeople and Nature, EarlyView.
Abstract The illegal wildlife trade represents a significant threat to biodiversity. Limited research has examined the illegal trade in succulents, plants characterized by their ability to store water in their leaves, stems or roots. The growing popularity of succulents has contributed to the emergence of illicit consumer practices.
Léanne Vincendon   +2 more
wiley   +1 more source

Geopolitica del medio ambiente: Cambio climatico y recursos hidricos. Aproximacion al caso de Canada [PDF]

open access: yes, 2015
Climate change and its impacts on societies, ecosystems and water resources represent one of the most important environmental, social and economic challenges today.
Gandin, J., Nava, L.F.
core  

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