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5 Keystone Species

Published on Nov 18, 2015

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PRESENTATION OUTLINE

5 KEYSTONE SPECIES

BY: DALTON LACKEY

Grizzly Bears
Grizzly bears: As predators, bears keep down the numbers of several species, like moose and elk. They also carry and deposit seeds throughout the ecosystem.

Jaguars
Jaguars: Jaguars are predators, as are many keystone species. They have a very diverse diet of about 87 different species, which contributes to their importance by keeping the numbers of these species in balance.

Mountain Lion
Mountain Lions: These predators cover large areas and influence many species. Their prey will alter where they eat and live because of the mountain lion. Scavengers are also affected by the mountain lion’s activity.

Photo by WmPitcher

Bees
Bees: By pollinating plants, bees contribute to their survival. The plants are shelter for insects, which are then eaten by other species, like birds.

Sea Otters
Sea otters: Sea otters are a keystone species in the kelp forests. They eat many invertebrates, but especially sea urchins. If there are too many sea urchins, they will eat too much of the kelp and destroy it.