Assertion: bison | /r/HasProperty | a keystone species
Facets:
value: to the prairie ecosystem
type: TRANSITIVE-OBJECT
value: in the plains
type: LOCATION
Source sentences:
text: Bison, a keystone species, help create habitat on the Great Plains for many different species, including grassland birds and even many plant species.
text: Bison are a keystone species.
text: National Park Service]. Although they only feed on grass, bison are a keystone species in the Plains, meaning their influence in the environment affects the well-being of many other species.
text: The plains subspecies became the dominant animal of the prairies of North America, where bison were a keystone species, whose grazing and trampling pressure was a force that shaped the ecology of the Great Plains as strongly as periodic prairie fires and which were central to the survival of many American Indians of the Great Plains.
text: Bison are a keystone species to the prairie ecosystem, as they directly affect plant composition and maintain grasslands and meadows through grazing.