Table 1. Summary of the species-species dataset (Data Citation 1).

	algae	arthropod	bacteria	bryozoa	cnidaria	fungi	helminth	plants	mollusca	others	protozoa	segmented worm	viroid	virus	Total
Columns are categories of cargoes, rows are categories of carriers.
algae	0	0	36	0	0	0	0	0	0	0	0	0	0	2	38
amphibian	0	1	16	0	3	24	111	0	0	4	9	0	0	23	191
arthropod	5	294	1110	2	0	645	77	0	1	11	196	12	0	335	2688
aves	0	524	136	0	0	6	125	0	0	0	135	0	0	400	1326
bacteria	0	0	11	0	0	0	0	0	0	8	0	0	0	84	103
bryozoa	0	0	0	0	5	32	0	0	0	0	0	0	0	0	37
cnidaria	0	15	46	0	0	27	0	0	0	1	16	0	0	0	105
domestic	1	102	1215	0	0	227	556	0	0	12	458	0	0	563	3134
fish	0	47	588	0	297	82	1302	1	0	13	66	3	0	148	2547
fungi	0	0	73	0	0	1	1	0	0	0	1	0	0	23	99
helminth	0	0	91	0	0	12	0	0	2	0	0	0	0	7	112
human	1	19	878	0	0	311	148	0	0	0	70	0	0	204	1631
other mammals	0	110	298	0	1	114	412	0	1	7	202	0	0	406	1551
mollusca	1	29	138	0	0	2	109	0	0	8	39	0	0	7	333
plants	0	1506	2977	0	0	694	293	0	0	2	19	0	93	1597	7181
others	0	1	23	0	0	0	1	0	0	2	4	0	0	13	44
porifera	0	2	50	0	5	18	0	0	0	1	0	0	0	0	76
primate	0	11	26	0	0	19	36	0	0	0	104	0	0	231	427
protozoa	5	0	17	0	0	3	0	0	0	0	6	0	0	3	34
reptile	0	13	54	0	3	11	72	0	0	0	64	4	0	14	235
rodent	0	88	157	0	0	10	127	0	0	0	66	0	0	130	578
segmented worm	0	0	23	0	12	0	5	0	0	2	3	0	0	0	45
Total	13	2762	7963	2	326	2238	3375	1	4	71	1458	19	93	4190	22515