mortality	density	refuge
0.82	1.125	1
1.25	0.75	1
1.74	1.5625	1
1.97	1.625	1
2.61	2.5625	1
3.41	2.875	1
0.79	0.1875	2
1.58	0.5625	2
1.88	1.4375	2
2.29	1.8125	2
2.29	2.8125	2
3.16	4.75	2
1.33	3.6875	3
1.12	1.25	3
1.5	1.1875	3
1.5	2.3125	3
1.56	1	3
1.6	1.75	3