Diverse Species are different species in an ecosystem.
In the bald eagle's ecosystem they compete with cranes, ducks and other birds of prey over their favorite food the salmon. Then the fish population would decrease due to more predators forcing the 2 birds to look for other food sources and cause the entire ecosystems population to decrease.
A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.
When humans don't care for the species they die.
Every ecosystem on earth needs biodiversity and without it the whole web of life that includes us humans will collapse. Species provide important resources so we can survive.
Humans can help clean up and protect beaches, parks, reserves, and fields where wild plants and animals live.