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(English) In trophic models: a trophic flow of matter (or energy) between two boxes, or a flow of material or energy from or into a box. Arrows may be either `weighted' (i.e., quantified) or unweighted (i.e., represent only the existence of a flow). (See also: food consumption)
(French) Dans les modèles trophiques: un flux trophique de matière (ou énergie) entre deux boîtes, ou un flux de matière ou énergie qui sort de ou qui entre dans une boîte. Les flèches peuvent être pondérées (c.-à-d., quantifiées) ou non-pondérées (c.-à-d., ceux qui représentent seulement l'existence d'un flux). (See also: food consumption)
direcção do fluxo energético
(Portuguese) Nos modelos tróficos: fluxo trófico de matéria ou energia de uma caixa para outra. (See also: food consumption)

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