Book Creator

Keystone Species of the World

by Brian Ebaugh

Cover

Loading...
Loading...
Loading...
Loading...
Keystone Species of the World
Keystone Species ~ Holding an Ecosystem Together
On the following pages you will find information created by our Environmental Studies students on 'keystone species' from around the world.
Keystone Species ~ Holding an Ecosystem Together
On the following pages you will find information created by our Environmental Studies students on 'keystone species' from around the world.
North America
Purple Sea Star
Pisaster Ochraceus
3. The purple sea star was one of the first keystone species identified by scientists. It is a top predator that keeps the number of species in tide pools relatively stable.
Zoe
North America
Purple Sea Star
Pisaster Ochraceus
4. Paine did experiments where he removed species other than the purple sea star from tide pools but it didn't have as much as an impact. In 1969, Paine invented the concept of the "keystone species" to describe the sea stars large effect.
South America
Cougar
Puma Concolor
3. Cougars earn their keystone species status due to their messy eating habits. They leave lots of leftovers for smaller carnivores and scavengers to consume.
Zoe
4. Scientists discovered that Patagonian Cougars are "messy eaters". They leave behind a large amount of meat compared to other predators. The food leftover is important for scavengers, such as Andean condor. The cougars also abandon fresh kills to avoid being bothered by scavengers or human hunters. The abandoned fresh kills feed smaller carnivores.
PrevNext