Primary and Secondary Succession

Primary succession is when new growth occurs in a location devoid of vegetation and soil. Common causes of primary succession in taiga are glaciers and lava flows. First, pioneer species colonize the area such as fungae, lichen, grasses, and wildflowers. These start to recreate the soil, allowing for small vascular plants to take over. As the area starts to contain larger plants, animals are attracted to it. Lastly, trees and other large plants join, and a climax community is created.


Secondary succession is the growth of plants in a an area where plants were destroyed, but the soil remains intact. In taiga, the main cause of this is wildfires. In fact, some species, such as the Jack Pine (Pinus banksiana) will only release seeds after a fire. The succession of growth is similar to primary succession, but there is no need for pioneer species.

 50°23'21.34"N
100°51'0.83"W