In succession the first changes occur in what populations?

Answer 1

In ecological succession, the first changes typically occur in pioneer species populations, which are often hardy plants and microorganisms that can thrive in disturbed or barren environments. These species begin to colonize the area, improving soil quality and creating conditions suitable for other organisms. As these pioneer species establish themselves, they pave the way for more complex communities, leading to increased biodiversity over time. Ultimately, this process can lead to a mature ecosystem, such as a forest or grassland.