Table 2. Extent of dominant habitat types in each study area and the conservation objectives. For Elkhorn Slough, conservation objectives were defined by the Elkhorn Slough Foundation. Identified habitat extents were then used in the MARXAN run to identify the regional conservation design. For Pleasant Grove, we defined the habitat conservation targets. The target conservation amount for annual grasslands equals the middle of the three percentages shown. In the Pleasant Grove study, these conservation target levels were used in one of two MARXAN runs that defined the suitability of ownership parcels for the regional conservation design. The highest parcel value derived either from the MARXAN runs or the connectivity modeling was then used in the regional conservation design. This design was then used as a boundary within which the mitigation needs exercise ranked the suitability of parcels.
| |
| |
|
Habitat Type |
Total Hectares |
% Protected |
Target % |
Total Conservation Target |
| |
|
Elkhorn Slough |
|
|
|
|
|
Dune Scrub |
53.4 |
82 |
95 |
50.6 |
|
Mudflat |
485.2 |
86 |
95 |
460.9 |
|
Saltmarsh |
459.7 |
72 |
95 |
437.1 |
|
Saltwater |
241.2 |
71 |
90 |
217.3 |
|
Freshwater |
78.5 |
19 |
75 |
58.7 |
|
Freshwater Wetlands |
245.6 |
30 |
75 |
184.1 |
|
Maritime Chaparral |
950.6 |
24 |
75 |
713.1 |
|
Riparian |
337.9 |
14 |
65 |
219.7 |
|
Conifer |
40.5 |
6 |
25 |
10.1 |
|
Eucalyptus |
803.3 |
7 |
30 |
240.8 |
|
Grassland |
7006.3 |
8 |
45 |
3152.9 |
|
Coast Live Oak Woodland |
4909.6 |
10 |
50 |
2454.8 |
|
Sage Scrub |
363.8 |
13 |
50 |
181.7 |
|
Rock |
1.2 |
0 |
10 |
0.0 |
|
Disturbed |
4671.3 |
8 |
0 |
0.0 |
|
|
|
|
|
|
|
Pleasant Grove |
|
|
|
|
|
Annual Grassland |
43 020 |
9.4 |
25 |
10 755.0 |
|
Blue Oak–Foothill Pine |
495 |
20.2 |
50 |
247.5 |
|
Blue Oak Woodland |
1463 |
9.4 |
50 |
731.5 |
|
Freshwater Emergent Wetland |
4586 |
23.7 |
50 |
2293.0 |
|
Montane Hardwood–Conifer |
3 |
0 |
50 |
1.5 |
|
Montane Hardwood |
806 |
4.7 |
50 |
403.0 |
|
Valley Oak Woodland |
2170 |
0 |
50 |
1085.0 |
|
Valley Foothill Riparian |
2400 |
23.6 |
50 |
1200.0 |
|
Unknown Conifer Type |
53 |
3.8 |
50 |
26.5 |
|
Unknown Shrub Type |
198 |
9.1 |
50 |
99.0 |
|
Vernal Pool Complex |
21 629 |
8.1 |
50 |
10 814.5 |
|
| |
|