The gradual and predictable change in the species composition of a given area is called ecological succession . What you understand with the pioneer and community in this context ?

Explanation

### Step-by-Step Solution:

1. **Understanding Ecological Succession**:
- Ecological succession refers to the gradual and predictable changes in species composition within a given area over time. This process can occur in various environments, including terrestrial and aquatic ecosystems.

2. **Pioneer Community**:
- The pioneer community is the first group of species that colonizes a barren or disturbed area. These species are typically hardy and can withstand harsh conditions. They initiate the process of ecological succession.

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