Phenology Table for Species Heptagenia species (Flat-headed mayfly)

Numbers of Specimens Sampled Per Month at Each of Four Elevation Ranges
Meters Elev Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Elev Total
1 to 499m 0 0 0 0 0 0 0 1 3 0 0 0 4
500 to 999m 4 1 0 1 0 9 15 19 8 1 0 0 58
1000 to 1499m 0 0 0 0 0 5 13 7 4 0 0 0 29
1500m or more 0 0 0 0 0 0 0 0 0 0 0 0 0
Totals >>> 5 1 0 1 0 19 28 27 15 1 0 0 97

 

 

 

 

* Note: numbers of data records without elevations are included in the totals row.