Consider local environments, for example you home and garden.
This ‘home’ environment is not just a home to yourself, but for flora (trees, plants, bushes) and resident and visiting wildlife that could use your plants and bushes for food, for building nests or homes or to pollinate.
A recent study found that the average UK garden had in excess of 500 species within it (cite)
These collections and pockets of plants and wildlife activity are called eco systems, and they are on your very doorstep.
Yet human action, can impact these ecosystems for example: using a pesticide, undertaking activities that can pollute or create excessive noise.
