The Yukon-Kuskokwim Delta (YKD) encompasses the southernmost, warmest parts of the Arctic tundra biome and is renowned for its high biological productivity and large subsistence-based human population. Recent and rapidly-occurring environmental changes in this region include significant winter and spring warming, decreased sea ice extent, loss of snow cover, warming permafrost, and recurrent tundra fires. Describe the type(s) of ecological succession that will occur in this region.