File:Fragmentation forestière connectivité.jpg

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Français : Ce graphique présente 3 situations schématiques, avec deux massifs forestiers, l'un est ancien (vert foncé), et en situation d'insularisation écologique. l'autre est récent ou à créer (vert pâle), dans une matrice paysagère non boisée (jaune) . La longueur de la flèche présente la distance maximale que peut parcourir une espèce donnée (par exemple pour coloniser le nouveau boisement à partir du massif ancien). Dans la situation 1, la colonisation ne peut se faire. Dans la situation 2 elle peut se faire à partir de deux massifs anciens, et dans la situation 3, elle se fait par contact, mais le territoire où l'espèce sera présente sera plus réduit que dans la situation 2
Unknown this graph shows three schematic situations with two forested areas, the former (dark green) and the other recent or future. the length of the arrow shows the maximum distance that can navigate a given species (for example to colonize the new afforestation from the ancient massif). in situation 1, colonization can not be done. in situation 2 it can be done from two ancient massifs, and in state 3, it is by contact, but the area where the species will be present will be lower than in situation 2Unknown this graph shows three schematic situations with two forested areas, the former (dark green) and the other recent or future. the length of the arrow shows the maximum distance that can navigate a given species (for example to colonize the new afforestation from the ancient massif). in situation 1, colonization can not be done. in situation 2 it can be done from two ancient massifs, and in state 3, it is by contact, but the area where the species will be present will be lower than in situation 2
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Author Lamiot

see also : Santiago Saura & al.Networkanalysis to assesslandscapeconnectivity trends: Application to Europeanforests (1990–2000)

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current16:13, 5 June 2012Thumbnail for version as of 16:13, 5 June 20121,280 × 941 (138 KB)Lamiot (talk | contribs)

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