Biogeographical region	Very low (in km2)	Low (in km2)	Medium (in km2)	High (in km2)	Very high (in km2)	Very low	Low	Medium	High	Very high
EU
Within Natura 2000	23011537	28447309	18920731	7157949	790251	29.4	36.3	24.2	9.1	1.0
Outside Natura 2000	15868314	25491196	26204004	15016846	3513965	18.4	29.6	30.4	17.4	4.1
Alpine
Within Natura 2000	11533337	2685710	620015	134411	27642	76.9	17.9	4.1	0.9	0.2
Outside Natura 2000	7172133	2098000	834741	277728	109789	68.4	20.0	8.0	2.6	1.0
Atlantic
Within Natura 2000	1350630	2440570	2294121	1761982	244553	16.7	30.2	28.4	21.8	3.0
Outside Natura 2000	982024	2135956	3000257	3304735	885129	9.5	20.7	29.1	32.1	8.6
Black Sea
Within Natura 2000	338186	231209	69978	6227	935	52.3	35.8	10.8	1.0	0.1
Outside Natura 2000	27396	142998	59771	14417	9261	10.8	56.3	23.5	5.7	3.6
Boreal
Within Natura 2000	3437792	2621382	1069582	203194	26161	46.7	35.6	14.5	2.8	0.4
Outside Natura 2000	3760203	3978795	2204374	598847	100007	35.3	37.4	20.7	5.6	0.9
Continental
Within Natura 2000	1706885	7238150	7955515	3727991	386409	8.1	34.4	37.9	17.7	1.8
Outside Natura 2000	1182320	5567885	10310692	7325478	1553771	4.6	21.5	39.7	28.2	6.0
Macaronesian
Within Natura 2000	286128	62797	23836	2609	100	76.2	16.7	6.3	0.7	0.0
Outside Natura 2000	207293	57592	29585	4861	1357	68.9	19.2	9.8	1.6	0.5
Mediterranean
Within Natura 2000	3919614	11392916	5921691	1169853	95576	17.4	50.6	26.3	5.2	0.4
Outside Natura 2000	2329403	9793241	8297529	3052226	760984	9.6	40.4	34.2	12.6	3.1
Pannonian
Within Natura 2000	67473	1458039	858359	147010	8636	2.7	57.4	33.8	5.8	0.3
Outside Natura 2000	31522	1361509	1353404	420328	87753	1.0	41.8	41.6	12.9	2.7
Steppic
Within Natura 2000	371492	316536	107634	4672	239	46.4	39.5	13.4	0.6	0.0
Outside Natura 2000	176020	355220	113651	18226	5914	26.3	53.1	17.0	2.7	0.9