Competition is the struggle between two or more organisms of same or different species for available resources.
Intraspecific competition is competition between individuals of same species. It is more acute as the requirements are same and can reduce the size of the population.
Interspecific competition is competition between individuals of different species. It occurs when organisms of different species have similar feeding habits. They belong to the same trophic level.
- E.g., In grassland, there is competition between herbivores like rabbit, deer, bison.
- Competition between resident fishes and visiting flamingoes for the zooplankton in the lake.
- Carnivores like tiger and leopard compete for the same prey.
- In forests trees, shrubs and herbs compete for water, minerals, and sunlight.