However, many natural eider populations seem to be showing a showing a negative trend in density or number, despite the fact that the climate is getting warmer (e.g., Gilchrist and Robertson 1998 ; Suydam et al. 2000 ; Hario and Selin 2002 ; Merkel 2004 ; Hario and Rintala 2006 ; but see D'Alba et al. 2010 ; Merkel 2010 ).
← all excerpts
A natural antipredation experiment: predator control and reduced sea ice increases colony size in a long-lived duck.
1
—
—