TY  - RPRT
TI  - Is predation on waterfowl nests density dependent? Tests at three spatial scales
AU  - Joshua T. Ackerman
AU  - Alexis L. Blackmer
AU  - John M. Eadie
PY  - 2004
DO  - 10.1111/j.0030-1299.2004.13226.x
UR  - https://pubs.usgs.gov/publication/1008091
ID  - 1008091
ER  -