Answer :
Final answer:
The major keystone species in 'the magical forest' is the fig tree, crucial for maintaining biodiversity and supporting numerous species within the ecosystem.
Explanation:
The presence of Fig tree is critical to maintaining biodiversity within an ecosystem and upholding the ecological community's structure. Fig trees support a vast array of wildlife, which rely on them for food and habitation. Due to their significant roles, these trees have an impact that far exceeds their actual numbers.
Without fig trees, the forest ecosystem might collapse into a fundamentally different form or cease to function effectively. They are a source of sustenance for numerous species, especially during scarce periods, acting as a food reserve that keeps an ecological balance.
Essentially, the fig tree plays a disproportionate role in influencing the structure and diversity of the forest, and the loss of it could lead to a reduction in local biodiversity and potentially alter the entire ecosystem.