Why is succession difficult to observe?

Succession is difficult to observe because it occurs over extended time periods, often spanning decades or even centuries, making it challenging to witness the gradual changes in ecosystems. Additionally, the process can be influenced by numerous variables, such as climate, soil conditions, and disturbances, which can complicate the ability to isolate specific factors affecting succession. Moreover, the results of succession may not be immediately apparent, as initial changes can be subtle and require long-term observation to fully understand the dynamics at play.