Jenny L. McGuire, et al, at Georgia Institute of Technology, has published a paper examining how much of land in the United States offers connectivity that helps species navigate projected climate change in the next century.
The paper states that “only 41% of US natural land area is currently connected enough to allow species to track preferred temperatures as the planet warms over the next 100 years. If corridors allowed movement between all natural areas, species living in 65% of natural area could track their current climates, allowing them to adjust to 2.7 °C more temperature change.”
Read more at: http://conservationcorridor.org/2016/06/corridors-as-an-effective-means-to-achieve-climate-connectivity/