16 A B C D F E $X 2.7 #( ## K A: #( ## 0 . , B: #( ## % "6/ , C: #( ## * , D: #( ! 5V, E: #( ## * !, F: #( ##V (Borror et al. 1989, Ruesink and Kogan 1994, Martin 1977, Ric 2007)