Changes in biodiversity harm birds insects and bats that pollinates plants:
As pollinators visit flowers to drink nectar or feed on pollen, they move pollen from flower to flower and help plants reproduce.
Pollination is an 'ecological service' which is referred as a role an 'organism plays in its ecosystem' which is needed for human life .
With changes in the biodiversity their routine eating habits are ruined as the plants they feed regularly upon might have transformed into poisonous or incompatible for their consumption.
There are many anthropogenic activities which are also acting a contributor for this.
