Table 2. Pathways.

		Rivers	Railways	Ports	Lakes	H
N120	W	12261	13381	17345	24336	81
	p value	0.908	0.128	<0.001	<0.001	0.956
	Median (obs.)	0.160	0.038	5.5	0.026	2853.8
	Median (rand.)	0.148	0.034	2	0.004	1168.2
N60	W	11800	14881	16379	16706	20320
	p value	0.645	<0.001	<0.001	<0.001	<0.001
	Median (obs.)	0.160	0.046	1	0.029	2935.3
	Median (rand.)	0.157	0.033	0	0.002	1169.6
N30	W	12164	16069	15088	15835	20354
	p value	0.997	<0.001	<0.001	<0.001	<0.001
	Median (obs.)	0.159	0.054	0	0.009	3074.4
	Median (rand.)	0.161	0.032	0	0	1019.2

Results of the Wilcoxon test to compare the effects of rivers, river ports, lakes, railways and human population density (H) between infested points and random points, for three neighbourhoods (N120, N60, N30). The sample size of both datasets (observed and random data) was n = 156.