Figure 3 (above). Early bloom of Contra Costa Goldfields, Lasthenia conjugens, in the area north of McCoy Reservoir on 8 April 2006. Patch with pan-traps for monitoring native bees. Note water standing in mud flats from March rains.
Figure 4 (below). Blue pan-trap bowl with native bee caught in the water with detergent on 23 April 2006.
Figure 5 (above). Tumuli of nests of pollen host-specific native solitary bees of the genus Andrena (with nickel for scale) on 23 April 2006. Note that these nests are in bare ground adjacent to the vegetated areas containing their flower hosts. The soil has just started to dry and crack.
Figure 6 (below). Mixed patch of Lasthenia conjugens and Lasthenia californica in the eastern project area (labeled Central Area on Figure1) on 29 April 2006.
Figure 7 (above). Patch of Lasthenia conjugens (peripherally) and Downingia pulchella (centrally) with pan-traps on 6 May 2006.
Figure 8 (below). Nest site habitat of an undescribed species of native solitary bee in the genus Panurginus that specializes in collecting pollen from Downingia. The bee nest tumuli and cruising males were abundant in the more sparsely vegetated area in the center of the photo on 13 May 2006.
Figure 9 (above). Tumuli of nests of an undescribed species of native solitary bee in the genus Panurginus that specializes in collecting pollen from Downingia with a penny (center of photo) for scale on 13 May 2006.
Figure 10 (below). Remnants of Lasthenia conjugens in dried pool bottom in the Hawthorne Mill area west of McCoy Reservoir with pan-traps on 28 May 2006. Note the thick grass vegetation in the upland areas surrounding the pool area. APPENDIX:
Site Photos
(see Figure 2 for photo locations)
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 1 Photo Point 4
Photo Point 2 Photo Point 5
Photo Point 3 Photo Point 6
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 7 Photo Point 10
Photo Point 8 Photo Point 11
Photo Point 9 Photo Point 12
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 13 Photo Point 16
Photo Point 14 Photo Point 17
Photo Point 15 Photo Point 18
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 19 Photo Point 22
Photo Point 20 Photo Point 23
Photo Point 21 Photo Point 24
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 25 Photo Point 28
Photo Point 26 Photo Point 29
Photo Point 27 Photo Point 30
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 31 Photo Point 34
Photo Point 32 Photo Point 35
Photo Point 33 Photo Point 36
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 37 Photo Point 40
Photo Point 38 Photo Point 41
Photo Point 39 Photo Point 42
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 43 Photo Point 46
Photo Point 44 Photo Point 47
Photo Point 45 Photo Point 48
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 49 Photo Point 52
Photo Point 50 Photo Point 53
Photo Point 51 Photo Point 54
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 55 Photo Point 58
Photo Point 56 Photo Point 59
Photo Point 57 Photo Point 60
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 61 Photo Point 64
Photo Point 62 Photo Point 65
Photo Point 63 Photo Point 66
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 67 Photo Point 70
Photo Point 68 Photo Point 71
Photo Point 69 Photo Point 72
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 73 Photo Point 76
Photo Point 74 Photo Point 77
Photo Point 75 Photo Point 78
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 79 Photo Point 82
Photo Point 80 Photo Point 83
Photo Point 81 Photo Point 84
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 85 Photo Point 88
Photo Point 86 Photo Point 89
Photo Point 87 Photo Point 90
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 91 Photo Point 94
Photo Point 92 Photo Point 95
Photo Point 93 Photo Point 96
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo Point 97 Photo Point 100
Photo Point 98 Photo Point 101
Photo Point 99 Photo Point 102
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo point 103 Photo point 106
Photo point 104 Photo point 107
Photo point 105 Photo point 108
Photodocumentation of Hawthorne Mill project areas (see Figure 2 for photograph locations)
Photo point 109 Photo point 112
Photo point 110 Photo point 113
Photo point 111 Photo point 114