Table 2.

Kruskal-Wallis H test results testing if there was a significant difference in the C and N chemistries of samples from different Namib Desert habitat (dune or Gravel plain) or precipitation regime zones (fog vs rain).

		Kruskal-Wallis test
		H	p
Dune vs Gravel plain	δ15N	1.371	0.2417
	δ13C	0.5169	0.4722
	%N	13.61	<0.0005*
	%C	22.23	<0.0005*
	C/N	19.33	<0.0005*
Fog vs Rain	δ15N	7.286	<0.01*
	δ13C	12.35	<0.0005*
	%N	22.34	<0.0005*
	%C	26.49	<0.0005*
	C/N	1.7	0.1923

H: Kruskal-Wallis test H(chi²) statistic. *Significantly different (p < 0.05).