Ecosystem Dynamics, Biodiversity & Species Interactions

Grass

the frog and small bird would not have any food to eat and would starve. 

Eutrophication is when nitrogen and phosphorus(from fertilizers) flows into ponds and lakes

algae

This leads to low oxygen levels(hypoxia) in the lake, and then many other organisms such as fish and plants will die.

Pelicans can be born with thin beaks or deep beaks.

Parents with deep beaks have offspring with deep beaks.

Pelicans with deep beaks can meet their need for food.

Pelicans with thin beaks starve to death.

In the future, more pelicans have deep beaks than thin beaks.

Lichens

Grasses and small plants

Shrubs

Large variety of trees/bushes

Climax community

An ecosystem must start over from scratch. The soil is completely destroyed, and it takes longer for the ecosystem to rebuild.

An ecosystem experiences a pause in growth due to a catastrophic event, the ecosystem takes awhile to rebuild.

For example: a volcanic eruption

For example: a wild fire.