marginally significantP = 0.0511
The fly model with all plant species revealed a marginally significant interaction between community type (observed vs. null) and seep index [ F ( 3, 24 ) = 4.21, P = 0.0511], with the observed mean Δ S t exhibiting a marginally significant decline with seep index ( t = −2.05, P = 0.0511) with no relationship between the null mean Δ S t and seep index ( t = 0.03, P = 0.9740) ( Figure 4B ).