Evaluating the biological effectiveness of fully and partially protected marine areas

Table 7 The difference in the magnitude of response to protection (ES _DIFF ) between target-protected and non-target species for biomass data

	(a) All MPA case-studies included (N = 6)				(b) Sensitivity analysis; habitat confounded studies excluded (N = 5)
	ES _DIFF	95% CI	Z-val	p-val	ES _DIFF	95% CI	Z-val	p-val
rho = 0	0.04	−0.56 → 0.64	0.13	0.89	0.008	−0.67 → 0.69	0.02	0.98
rho = 0.5	0.13	−0.48 → 0.74	0.41	0.67	0.10	−0.60 → 0.80	0.27	0.79
rho = 1	0.19	−0.15 → 0.53	1.09	0.27	0.16	−0.23 → 0.55	0.81	0.42

Studies were weighted by the variance of the difference between two correlated variables (correlation coefficients of rho = 0, 0.5, 1). The ES_DIFF, 95% confidence interval, Z-val and p-val are given for (a) all PPA case-studies that provide data for both categories and (b) for PPAs with no habitat confounded effect. N represents the number of PPAs included in the analysis.

ISSN: 2047-2382