Landscape connectivity refers to how connected fragments of land, with resources, are to one another, and how this level of being connected facilitates or impedes an organism’s movement to patches of resources. This affects the resource use and gene flow of a population.
Source:
http://www.ecologyandsociety.org/vol6/iss2/art10/
Picture Sources:
http://nac.unl.edu/buffers/images/guide/2.4.jpg
http://vasarma.files.wordpress.com/2010/04/letheories.jpg