Appendix C. Observed variance of the nearestneighbor distance (VARNND) among coexisting leaflitter ant assemblage for four Atlantic Forests, generated by randomly choosing without replacement from the regional species pool (171 species) the same number of species found at each site, using two different procedures.
TABLE C1. Observed variance of the nearestneighbor distance (VARNND) among coexisting leaflitter ant assemblage for four Atlantic Forests, generated by randomly choosing without replacement from the regional species pool (171 species) the same number of species found at each site, using two different procedures: (1) assuming that all localities have the same probability of colonization by each ant species (null model 1); (2) assuming that the probability of a species to be chosen is equal to the number of occupied sites (null model 2). Pindicates the probability of the assemblages shows morphological divergence (P_{MD}) or morphological aggregation (P_{MA}). P_{MD} = ((the number of randomized VARNND < the observed VARNND) + 1)/(the number of randomizations + 1); P_{MA} = ((the number of randomized VARNND > the observed VARNND) + 1)/(the number of randomizations + 1). We reject the null hypothesis when P_{MD} or P_{MA} is lower than 0.025 (in bold).

Null model 1 (Equiprobable source pool) 


Variance of NND 
P_{MD} 
P_{MA} 
Blumenau 
0.0242 
0.354 
0.670 
São Bento do Sul 
0.0431 
1.000 
0.001 
Lauráceas 
0.0266 
0.815 
0.208 
Tapiraí 
0.0437 
1.000 
0.001 

Null model 2 (Occurrenceweighted source pool) 


Variance of NND 
P_{MD} 
P_{MA} 
Blumenau 
0.0242 
0.244 
0.766 
São Bento do Sul 
0.0430 
1.000 
0.001 
Lauráceas 
0.0260 
0.649 
0.363 
Tapiraí 
0.0437 
1.000 
0.001 