Question

What adaptations reduce competition

Answer 1

Food is one of the major reasons for competition.

So if an organism is to adapt to another food type/source, competition might be reduced in the ecosystem

Answer 2

An animal may adapt to a different food, something other than the food which is consumed by all the other animals of the region. This adaptation will allow it to consume something that is not eaten by its competitors, thus allowing it to be the most significant consumer of that particular food.