Table 2.

Significance levels for the Wilcoxon tests (p-values adjusted after Holm).

Buffer (m)	Year	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016
1000	2007	0
	2008	0.034	0
	2009	0	0	0
	2010	0	0	0	0
	2011	0	0	0	0.067	0
	2012	0	0.331	0	0	0	0
	2013	0	0	0	0	0	0	0
	2014	0.006	0	0	0	0	0	0	0
	2015	0.331	0	0	0	0	0	0	0	0.331
	2016	0	0	0	0	0	0	0.065	0	0	0
	2017	0	0	0	0.023	0	0.708	0	0	0	0	0
600	2007	0
	2008	0.132	0
	2009	0	0	0
	2010	0	0	0	0
	2011	0	0	0	0	0
	2012	0	0.132	0	0	0	0
	2013	0	0	0	0	0	0	0
	2014	0	0	0	0	0	0	0	0
	2015	0.132	0	0	0	0	0	0	0	0.064
	2016	0.001	0	0.132	0	0	0	0.015	0	0	0
	2017	0	0	0	0.008	0	0.132	0	0	0	0	0
300	2007	0
	2008	0.437	0
	2009	0	0	0
	2010	0	0	0	0
	2011	0	0	0	0	0
	2012	0	0.058	0.027	0	0	0
	2013	0	0	0	0	0	0	0
	2014	0	0	0	0	0	0.067	0	0
	2015	0.181	0	0.006	0	0	0	0	0	0.004
	2016	0.68	0	0.68	0	0	0	0.009	0	0	0.027
	2017	0	0	0	0.005	0	0	0	0	0	0	0