TY  - RPRT
TI  - Ecological thresholds as a basis for defining management triggers for National Park Service vital signs: case studies for dryland ecosystems
AU  - Matthew A. Bowker
AU  - Mark E. Miller
AU  - R. Travis Belote
AU  - Steven L. Garman
PY  - 2013
DO  - 10.3133/ofr20131244
UR  - https://pubs.usgs.gov/publication/ofr20131244
ID  - ofr20131244
ER  -