Peru Intact Forest Landscape Corridors

Corridors between tropical Intact Forest Landscapes (Potapov et al. 2017) were derived from the UMD Global Land Analysis and Discovery lab's Global Forest Change Database (Hansen et al. 2013).Tree cover from the year 2000 and forest loss and gain between 2000 and 2012 were used as inputs to a corridor algorithm which maps a large number of corridors between source and target patches for the years 2000 and again for 2012. The algorithm preferentially maps corridors through high tree cover areas.Pixel values are weighted by the amount of tree cover in source and target patches and the importance of each pixel for connecting patches. The higher the value, the more important a pixel is for connecting patches with a large amount of tree cover. Pixels with a value of zero are not within any corridor. Corridors were not mapped for patches > 130 km apart. The algorithm assumes a linear relationship between forest cover and the ability of animals to move through the landscape. Corridors were clipped to the boundary of Peru and resampled to a resolution of 540 m.