TY  - RPRT
TI  - Monitoring biological diversity: strategies, tools, limitations, and challenges
AU  - E.A. Beever
PY  - 2006
DO  - 10.1898/1051-1733(2006)87[66:mbdstl]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70170282
ID  - 70170282
ER  -