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Table 3 SIMPER analysis of contribution of species

From: Dietary variation and food selection by mayfly grazers in a subtropical mountain stream

Algal species Dry season Wet season
Caged Grazed Caged Grazed
Achnanthes spp. 35.50 51.87 2.67 2.26
Achnanthidium minutissimum (Kützing) Czarnecki 13.13 5.49 2.74  
Achnanthidium pyrenaicum (Hustedt) H. Kobayasi    55.04 71.74
Cocconeis placentula var. euglypta   7.77 2.26 7.19
Diatoma vulgaris Bory de Saint-Vincent   2.79   
Gomphonema spp.    18.53 13.19
Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot 41.48 24.08 5.31 2.58
Total contribution 90.11 92.00 86.55 96.96
  1. SIMPER (similarity of percentage) analysis of contribution (%) of species occurrence in epilithic algal community respectively sampled on the caged bricks and the grazed cobbles in the dry and wet seasons in the Chichiawan Stream.