Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Proportion of juvenile greater snow geese during fall staging in southern Québec from 1973 to 2015. Data are from Reed et al. (1998) and Lefebvre (unpubl.). The dashed line indicates the start of special conservation measures in Canada and the dotted one the Conservation Order in the United States
