projection of species distribution models and the problem of non-analog climate

Global climatic change and biological invasions will each have important and likely synergistic impacts on biodiversity. However, the emergence of non-analog climates and the introduction of species to new biogeographical settings challenge our ability to anticipate these impacts because little information exists to predict how species may respond under novel environments. This problem is particularly relevant for projections in space and time made from species distribution models, which increasingly are being applied to conservation issues related to biodiversity and global change.