Why some plants may benefit more than others to certain variable

I believe your answer is this:
Some plants are more adapted to their climates that others. For example my dad grows okra and he sometimes has to replant the seeds because they sometimes  don't start growing while the others have come up and are sprouting. It's basically depends on the climate and the environment that surrounds the plant! God bless you and have a great day!

A- a reduction in biodiversity