Keystone Species

Question 1

a

Answer 1

African Elephants (destroy trees, make tunnels, dung fertilizer)

Question 2

b

Answer 2

Beaver (alter the edges of riparian areas by cutting down older trees to use for their dams)

Question 3

c

Answer 3

Cassowary (spread a variety of seeds)

Question 4

f

Answer 4

Figs (bear fruit year-round in tropical forests)

Question 5

G

Answer 5

Grizzly bears (enrich their community with salmon carcasses)

Gray Wolf (Greater Yellowstone Ecosystem)

Question 6

S

Answer 6

Sea Otter (protects kelp forests)

Sharks (prey on the sick and weak members of other fish populations)

Question 7

H

Answer 7

Hummingbirds (key pollinators to the unique vegetation in their area)

Honey Possums (key pollinators to the unique vegetation in their area)

Question 8

J

Answer 8

Jaguar (balances jungle w/ its widely varied diet)

Question 9

K

Answer 9

Krill (feed on phytoplankton, which is incredibly rich in life-promoting nutrients)

Kelp (keystone host)

Question 10

O

Answer 10

Ochre Sea Stars (prey on sea urchin and mussels)

Question 11

L

Answer 11

Lion

Question 12

P

Answer 12

Prairie dog (prairie ecosystem engineer)

Parrotfish (keeps the GBR clean)

Question 13

W

Answer 13

Wildebeests (prey for predators from lions to crocodiles of the African savanna)