Table 10. Foods eaten by tortoises during the third phenological period (1 June–30 June) at the Desert Tortoise Research Natural Area, eastern Kern County, California.
Species | # Bites | # Plants | % Bites | % Plants |
---|---|---|---|---|
Chamaesyce albomarginata | 3,601 | 97 | 51.38 | 24.01 |
Eriastrum eremicum* | 488 | 52 | 6.96 | 12.87 |
Erodium cicutarium | 461 | 62 | 6.58 | 15.35 |
Eremothera boothii | 366 | 35 | 5.22 | 8.66 |
Erodium cicutarium* | 258 | 41 | 3.68 | 10.15 |
Chorizanthe brevicornu | 257 | 8 | 3.67 | 1.98 |
Schismus barbatus* | 194 | 26 | 2.77 | 6.44 |
Chorizanthe brevicornu* | 119 | 15 | 1.70 | 3.71 |
Amsinckia tessellata* | 116 | 12 | 1.66 | 2.97 |
Stylocline psilocarphoides* | 99 | 12 | 1.41 | 2.97 |
Mirabilis laevis | 83 | 2 | 1.18 | 0.50 |
Cryptantha circumcissa* | 34 | 5 | 0.49 | 1.24 |
Phacelia tanacetifolia * | 28 | 1 | 0.40 | 0.25 |
Oxytheca perfoliata* | 25 | 3 | 0.36 | 0.74 |
Eriastrum eremicum | 23 | 5 | 0.33 | 1.24 |
Astragalus layneae | 7 | 1 | 0.10 | 0.25 |
Eremothera boothii* | 6 | 3 | 0.09 | 0.74 |
Ambrosia salsola | 4 | 1 | 0.06 | 0.25 |
Linanthus parryae* | 4 | 1 | 0.06 | 0.25 |
dead lizard (Gambelia wislizenii) | 695 | - | 9.92 | - |
Unknown plant spp. | 105 | 22 | 1.50 | 5.45 |
tortoise scat | 36 | - | 0.51 | - |
Total | 7,009 | 404 | 100.00 | 100.00 |
Plant names in boldface are herbaceous perennials; plant names followed by an asterisk were in a dried state (i.e., had already flowered and fruited—see Materials and Methods); # Plants refers to the total number of individual plants for a given species that tortoises fed from (i.e., a plant was counted if a tortoise made at least one bite from that plant). Tortoise scat was eaten on two different occasions by two different tortoises (one male and one female).