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Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Plants: Dicoria canescens (45%); Flower heads of composite (10%); Coldenia sp. (5%); Trifolium sp. (20%); Animal: Grasshoppers (5%); Dipsosaurus (5%); Fecal pellets (5%) | % volume of total stomach contents | % | Not Reported | Not Reported | Coachella Valley | 12 | Exposure Factor Datasets |
Dietary Composition | Plants: Dicoria canescens (50%); Flower heads of composite (25%); Dalea emoryi ? (10%); Coldenia sp. (10%) | % volume of total stomach contents | % | Not Reported | Not Reported | Coachella Valley | 8 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | range of average densities estimated over 2 yrs | 21.7 - 24.2 | #/ha | Not Reported | Not Reported | Chuckwalla Mountains (elev., 460m), [lat., 33^o37'N; long., 115^o18' W] | Not Reported | Exposure Factor Datasets |
Population Density | range of average densities estimated over 2 yrs | 10.8 - 13.4 | #/ha | Not Reported | Not Reported | Panamint Valley (elev., 790m), [lat., 36^o20'N; long., 117^o30' W] | Not Reported | Exposure Factor Datasets |
Population Density | range of average densities estimated over 2 yrs | 37.6 - 84.6 | #/ha | Not Reported | Not Reported | San Joaquin Valley (elev., 460m), [lat., 37^o38'N; long., 121^o29' W] | Not Reported | Exposure Factor Datasets |
Survival/ Mortality | range of early activity season (spring to summer) mortality rates measured over 3 yrs | 0.307 - 0.619 | deaths/100 lizards/d | Not Reported | Adult | Chuckwalla Mountains (elev., 460m), [lat., 33^o37'N; long., 115^o18' W] | 90-169/yr | Exposure Factor Datasets |
Survival/ Mortality | range of early activity season (spring to summer) mortality rates measured over 3 yrs | 0.463 - 0.542 | deaths/100 lizards/d | Not Reported | Adult | Panamint Valley (elev., 790m), [lat., 36^o20'N; long., 117^o30' W] | 33-48/yr | Exposure Factor Datasets |
Survival/ Mortality | range of early activity season (spring to summer) mortality rates measured over 2 yrs | 0.527 - 0.732 | deaths/100 lizards/d | Not Reported | Adult | San Joaquin Valley (elev., 460m), [lat., 37^o38'N; long., 121^o29' W] | 27-51/yr | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | see citation | figure of seasonal changes in body weight | g | Not Reported | Not Reported | Elkhorn Plain (elev., 685-765m) | Not Reported | Exposure Factor Datasets |
Time of Mating/ Laying | May - June | time of laying | Female | Adult | Elkhorn Plain (elev., 685-765m) | Not Reported | Exposure Factor Datasets | |
Time of Hatching or Parturition | Aug. | Not Reported | Hatchling | Elkhorn Plain (elev., 685-765m) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2 - 6 | eggs/clutch | Female | Adult | Elkhorn Plain | 11 | Exposure Factor Datasets |
Clutches or Litters per year | 2 - 4 | clutches/yr | Female | Adult | Elkhorn Plain | 11 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Apr. - May | time of mating | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | ||
Time of Mating/ Laying | June - July | time of laying | Female | Adult | Not Reported | Exposure Factor Datasets | ||
Clutch or Litter Size | 3 | 2 - 5 | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets | |
Duration of Incubation or Gestation | 57 | egg to hatching | d | Not Reported | Hatchling | Not Reported | Exposure Factor Datasets | |
Time of Hatching or Parturition | Aug. - Sept. | Not Reported | Hatchling | Not Reported | Exposure Factor Datasets | |||
Foraging Distance | 42 | maximum foraging distance from burrow | m | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | range of average clutch size from 2 sites over 2 yrs | 2.64 - 3.33 | eggs/clutch | Female | Adult | Delano and Kettleman Hills | 3-22 | Exposure Factor Datasets | |
Age at Sexual Maturity | 9 (occassionally 21) | based on presence of oviductal eggs and breeding color | mo | Female | Adult | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | |
Age at Sexual Maturity | 9 - 21 | mo | Male | Adult | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | ||
Time of Mating/ Laying | Apr. - June | time of breeding | Both Male and Female | Adult | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | ||
Time of Hatching or Parturition | July - Aug. | Both Male and Female | Hatchling | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | |||
Time of Mating/ Laying | May - July | time of laying | Female | Adult | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | ||
Duration of Incubation or Gestation | 4 | wks | Both Male and Female | Embryo | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | ||
Clutches or Litters per year | 1 -2 | clutches/yr | Female | Adult | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | ||
Time of Torpor or Hibernation | Oct. - Mar. | Not Reported | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Not Reported | Exposure Factor Datasets | |||
Growth Rate | 11.8 | increase in snout-vent length before retreat in Oct. | mm/mo | Both Male and Female | Hatchling | Pixley National Wildlife Refuge, Delano and Kettleman Hills | 2 | Exposure Factor Datasets | |
Growth Rate | increase in snout-vent length for juvenile to 9 mo period | 14.2 - 16.2 | mm/mo | Both Male and Female | Juvenile | Pixley National Wildlife Refuge, Delano and Kettleman Hills | 7 | Exposure Factor Datasets | |
Growth Rate | 3.4 | increase in snout-vent length from 8 to 12 mo | mm/mo | Male | Pixley National Wildlife Refuge, Delano and Kettleman Hills | 3 | Exposure Factor Datasets | ||
Growth Rate | 1.6 | increase in snout-vent length from 8 to 12 mo | mm/mo | Female | Pixley National Wildlife Refuge, Delano and Kettleman Hills | 2 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 5.69 | average clutch size | eggs/clutch | Female | Adult | Arroyo Laguna, Little Pico Creek, Pico Creek and San Simeon Creek | 81 clutches | Exposure Factor Datasets | |
Clutches or Litters per year | range of average number of clutches/yr | 1.0 - 1.7 | clutches/yr | Female | Adult | Arroyo Laguna, Little Pico Creek, Pico Creek and San Simeon Creek | 81 clutches | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 80-93 | age of puberty attainment | d | Male | Yearling | east-central area | 79 birds | Exposure Factor Datasets |
Age at Sexual Maturity | 93+ | age of puberty attainment | d | Female | Yearling | east-central area | 91 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 48.0 % | mean annual mortality rate | 4.3 SE | Both Male and Female | Adult | Berkeley | 725 birds | Exposure Factor Datasets | |
Longevity | 1.53 | mean life span | 0.19 SE | yr | Both Male and Female | Adult | Berkeley | 725 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 140.4 | mean body weight | 10.5 SD | g | Male | Both Adults and Juveniles | captured at Dundee, IL | 6 | Exposure Factor Datasets |
Body Weight - Mean | 129.6 | mean body weight | 6.9 SD | g | Female | Both Adults and Juveniles | captured at Dundee, IL | 14 | Exposure Factor Datasets |