d6d7c75b_harm_land___ManagingWholes_com__Brittle
[Nonbrittle] Few big herbivores that are solitary or live in small bands (tapir, okapi, gorilla, moose) [Brittle] 
Many big herbivores forming large herds (bison, wildebeest, zebra)
Landscape brittleness: how "good" management can harm land | ManagingWholes.com
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