If a tree falls then sunlight becomes available to the surrounding plants.
Encroaching trees rob the orchids of the sunlight they require.
Orchids will get more light when a surrounding tree falls.
What happens to a orchid when a nearby tree falls?

[a] dormant state
[b] It gets more light
[c] It becomes dormant
[d] They may not survive.
[e] It remains dormant
[f] It dies
[g] It gets less water
[h] It less light