Figure 1
From: Extreme climate event promotes phenological mismatch between sexes in hibernating ground squirrels
Daily maximum March temperatures (°C) in 2012 (black) compared to the 5-year average (2010–2014; grey) in Winnipeg, Canada. In 2012, male (black dashed line) Richardson’s ground squirrels (Urocitellus richardsonii) at the Assiniboine Park Zoo in Winnipeg, Canada began to emerge from hibernacula only 3 days before females (grey dashed line), compared to 5-year average male (black dotted line) and female (grey dotted line) emergence.
