[Odonata-l] effect of rain on ode numbers?

[Chris Hill]

Hi,

Here in my corner of South Carolina, it's rained almost five inches  
in the last week, with hard rains on about four days in a row.  It  
turned sunny again yesterday.

How does rainfall like that affect dragonfly numbers?  Does that  
usually knock them down for a while?  I'm asking because I have some  
students doing a research project on a common species, which is  
suddenly less common!  I'd like to be able to guess whether the  
dropoff is weather related and the odes will bounce back, or if it's  
more likely seasonal and they won't be coming back.

CH

************************************************************************
Christopher E. Hill
Biology Department
Coastal Carolina University
Conway, SC 29528-1954
chill AT coastal.edu
http://ww2.coastal.edu/chill/chill.htm

"Research is just formalized curiosity." -- Zora Neale Hurston