Among bryophytes, lichens and fern which one is a pioneer species in a xeric succession?

Explanation

**Step-by-Step Solution:**

1. **Understanding Pioneer Species**: Pioneer species are the first organisms to colonize a barren or disturbed environment. They play a crucial role in the ecological succession process by preparing the environment for other species.

2. **Defining Xeric Succession**: Xeric succession refers to the ecological succession that occurs in dry terrestrial habitats. It involves the gradual replacement of species in an environment that has limited moisture.

3. **Identifying the Options**: The options given are bryophytes, lichens, and ferns. We need to determine which of these is the pioneer species in xeric succession.

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