Acclimatisation is a term used by Charles Darwin to explain how species adapt to new temperatures, climates, environments or situations. In British Columbia, Canada warmer temperatures are directly affecting the mountain pine beetle survival rates. The beetle, native in the area, attacks lodgepole pine forests and has now adapted to reproducing in Jack Pines, the dominant pine species of the boreal forest. As a result, during hot dry summers, extreme forest fire conditions are not uncommon in the devastated areas. The loss of habitat has caused a ripple effect on other native species, like the American Black Bear, who is adapting by searching for food in urban areas.