Table 3.

Table 2 as revised according to the topology shown in figure 1.

species	1	2	3	4	row sum
1	0.	0.075	0.15	0.	0.225
2	0.	0.	0.045	0.	0.045
3	0.	0.	0.	0.015	0.015
4	0.025	0.0075	0.015	0.	0.0425
col. sum	0.025	0.0825	0.21	0.015	0.3325