Predicting When the First Spring Generation Will Emerge
If you assume that:
- Eggs were laid at all the places where monarchs were sighted, and
- It takes 32 days for a monarch to develop from an egg into an adult.
|
|
|
| The "Migration" Map Becomes.... |
A
New Map! |
On the right is the new map! It shows when and where we can expect the next generation of monarchs to emerge. Note how the dates of the legends changed:
| First
|
The
Next Generation |
| Before March 15 |
Before Apr. 16 |
| Mar 15 - Mar 28 |
Apr. 16 - Apr. 29 |
| Mar 29 - Apr 11 |
Apr 30 - May 13 |
| Apr 12 - Apr 25 |
May 14 - May 27 |
| Apr 26 - May 9 |
May 28 - Jun 10 |
Example: When might we expect monarchs to emerge in Arkansas? In North Carolina?
Answer: Using the map and legend above, we can predict that the first monarchs will emerge in Arkansas between Apr 30 - May 13, and in North Carolina between May 14 - May 27. Let's see if monarch sightings increase noticeably in those areas at that time!
