Monarchs in Decline
Every year, monarch butterflies migrate between their summer homes in the north and t
winter homes in tropical regions, such as Mexico. The line graph shows the changing wi
population of monarchs in Mexico. Data from other monarch homes confirm a similar tre
Total Area Occupied by Overwintering Monarchs
25
Hectares (ha)
20
15
10
5
0.
1995
2000
2005
Winter Season
2010
2015
Source: Monarchwatch.org
1. Analyze Graphs What trend in the monarch population does the graph show?
