Table 1.

Results of regression analysis of cumulative impact score (I_c) against the state of coralligenous outcrops using different models.

Regression analysis
Model	R 2	SE	Significance level	AICc	Run test
					P (%)	no. of runs
Linear	0.40	2.41	***	45.90	57.93	15
Log	0.47	2.28	***	42.93	59.19	15
Log-Linear	0.42	0.33	***	−57.02	57.93	15
Log-Log	0.51	0.31	***	−61.50	43.23	14
Ranks of cumulative impact score
		Thresholds
Degradation level		Halpern et al. 6	Linear	Log	Log-Linear	Log-log
10 (Low)		1.40	5.55	3.78	5.07	3.86
30 (Medium)		4.95	7.58	8.00	6.79	7.19
50 (Medium-High)		8.47	9.62	9.97	9.10	9.59
70 (High)		12.00	11.66	11.26	12.18	11.60
90 (Very high)		15.52	13.69	12.23	16.31	13.37

Results of AICc and run tests were also reported. SE = standard error of regression. ***P < 0.001. For each model, the corresponding thresholds for ranks of cumulative impact score were provided. Thresholds from Halpern et al.⁶ were also reported.