Good corridors protect locations that are essential for movement, like the Narrows in Skidegate Channel, the only places where animals can cross safely at low tides. Good corridors avoid locations that are inhospitable, like the steep, exposed peaks of the mountains, where animals cannot find adequate food or shelter. Good corridors also provide some continuity of habitat, so animals do not have to spend too much time in places where their usual food and shelter are not as common. This is one way of decribing a Forest Ecosystem Network from an animal's point of view. An island-wide Forest Ecosystem Network would connect all the largest protected areas areas to each other, and along the connecting corridors the smaller protected areas would provide some interior habitat that is needed along the way.
Good corridors are permanent.
Everyone knows how inconvenient and irritating it is to drive on long stretches of roads that are being repaired. In the back of our minds, though, we know it is necessary. On a longer time scale, corridors or Forest Ecosystem Networks that can be logged and shifted to other locations are like roads in a state of constant but completely unnecessary repair. Riparian zones next to rivers, lakes, and wetlands can make good corridors or FENs, but they should be wide and unbroken rather than narrow and logged at odd intervals. These kinds of riparian zones are not continuous enough to make connecting corridors nor wide enough to provide interior forest conditions along a corridor.