My ecosystem consists of flowers, aphids, chiffchaffs and many more animals. Aphids, math larva, and voles are my primary consumers. Lady bugs, spiders, blue tits, and chiffchaffs are my secondary consumers. Finally the owl and stoat are my tertiary consumers. This ecosystem is the forest and humans harm it by taking the trees many of these animals call home. Birds and flowers have a commensalism realationship. The bird picks up pollen whenever it lands on a flower and that helps create a greater genetic diversity for the plant.
When a parasite, tick or mosquito, feeds off a living thing harming ,but not killing the animal.
When one side gains ,but the other side doesn't.
When both sides gain from the ralationship.
Humans impact the forest negatively by deforestation, destruction of the forest to make goods.
Humans impact the forest positively whenever they plant trees.
This secondary consumer helps keep the bug population stable and is prey to the owl.