TY  - RPRT
TI  - Tests for senescent decline in annual survival probabilities of common pochards, Aythya ferina
AU  - James D. Nichols
AU  - James E. Hines
AU  - Peter Blums
PY  - 1997
DO  - 10.1890/0012-9658(1997)078[1009:tfsdia]2.0.co;2
UR  - https://pubs.usgs.gov/publication/5223313
ID  - 5223313
ER  -