Yellowstone Foodweb for Populus tremuloides (quaking aspen)

Yellowstone
Canis lupus
(Wolf)
Ursus americanus
(black bear)
Ursus arctos
(Grizzly Bear)
 
Alces alces
(moose)
Cervus elaphus
(wapiti or elk)
 
Populus tremuloides
(quaking aspen)
 
Ecosystem provided by National Geographic Magazine - May 2016 - Yellowstone - The Carnivore Comeback