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| Exposure Endpoint Type | Endpoint Value | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | 2 - 3 | yr | Both Male and Female | Tadpole | Ithaca | Not Reported | Exposure Factor Datasets | |
| Time of Fledging or Metamorphosis | July - Oct. | Both Male and Female | Tadpole | Ithaca | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|
| Growth Rate | review | see citation for review of growth rates based on size estimates | Both Male and Female | Adult, Tadpole | 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 | mean annual productivity | 1.7-2.2 | young/breeding adult | Both Male and Female | Adult | Oakland Airport | 18 birds | Exposure Factor Datasets | |
| Survival/ Mortality | 70 | % | Both Male and Female | Juvenile | Oakland Airport | 40 birds | Exposure Factor Datasets | ||
| Survival/ Mortality | 19 | % | Both Male and Female | Adult | Oakland Airport | 18 birds | Exposure Factor Datasets | ||
| Survival/ Mortality | 18 | % | Both Male and Female | Nestling | Oakland Airport | 40 birds | Exposure Factor Datasets | ||
| Time of Migration or Dispersal | Sep, Jan | Both Male and Female | Juvenile | Oakland Airport | Not Reported | Exposure Factor Datasets | |||
| Time of Molt | Jul (begin) | Both Male and Female | Adult | Oakland Airport | Not Reported | Exposure Factor Datasets | |||
| Fledging or Weaning Rate | proportion of nesting pairs that successfully fledged young (over two years) | 53.3-88.8 | % | Both Male and Female | Adult | Oakland Airport | 18 birds | Exposure Factor Datasets | |
| Time of Nesting | April - June | Both Male and Female | Adult | Oakland Airport | 18 birds | Exposure Factor Datasets | |||
| Time of Fledging or Metamorphosis | September | period by which fledging is complete | Both Male and Female | Adult | Oakland Airport | 18 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | nesting density based on nearest-neighbor test | 0.12-0.15 | pairs/km2 | Both Male and Female | Adult | Mapimf Biosphere Reserve, Durango (1,000-1,350 m) | 23-29 pairs | Exposure Factor Datasets | |
| Fledging or Weaning Rate | 1.91 | 1.63-2.19 | fledglings/successful nest | Both Male and Female | Adult | Mapimf Biosphere Reserve, Durango (1,000-1,350 m) | 52 nests | Exposure Factor Datasets | |
| Hatching Success | 61 | proportion of pairs that successfully raised at least one young | 55-65 | % | Both Male and Female | Adult | Mapimf Biosphere Reserve, Durango (1,000-1,350 m) | 52 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Hatching Success | reproductive success rate among pairs | 40-54 | % | Both Male and Female | Adult | Dade and Broward counties | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Hatching Success | 73 | percent of pairs hatching at least one chick | % | Both Male and Female | Adult | Moffett Air Force Base | 15 pairs | Exposure Factor Datasets |
| Clutch or Litter Size | 2.5 | mean number of chicks per nest | chicks/nest | Both Male and Female | Adult | Moffett Air Force Base | 11 pairs | Exposure Factor Datasets |
| Hatching Success | 78 | percent of pairs hatching at least one chick | % | Both Male and Female | Adult | Shoreline Park | 9 pairs | Exposure Factor Datasets |
| Clutch or Litter Size | 3.0 | mean number of chicks per nest | chicks/nest | Both Male and Female | Adult | Shoreline Park | 7 pairs | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Location | Sample Size | Type |
|---|---|---|---|---|---|
| Dietary Composition | arthropods (earwigs, crayfish, crickets, tiger beetles, tenebrionid beetles), vertebrates (Perognathus spp., Mus musculus, Thomomys bottae, Citelus tereticaudus, Agelaius phoeniceus, Sonora semiannulata, Hyla regilla, Bufo cognatus) | species known to occur in diet | Imperial Valley | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Range | Type |
|---|---|---|
| Duration of Incubation or Gestation | 23-29 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | range of means for 3 trapping periods | 14.1 - 73.1 | #/acre | Both Male and Female | Both Adults and Juveniles | Lake Tahoe, near Myers (elev., 6225 ft) | 3 trapping periods | Exposure Factor Datasets | |
| Time of Mating/ Laying | Apr. - Dec. | Both Male and Female | Adult | Bass Lake (elev., 4500 ft.) | Not Reported | Exposure Factor Datasets | |||
| Home Range | 0.24 | 0.03 - 1.1 | acres | Male | Adult | Bass Lake (elev., 4500 ft.) | 29 | Exposure Factor Datasets | |
| Home Range | 0.21 | 0.01 - 0.66 | acres | Female | Adult | Bass Lake (elev., 4500 ft.) | 27 | Exposure Factor Datasets | |
| Home Range | 0.13 | 0.01 - 0.24 | acres | Male | Juvenile | Bass Lake (elev., 4500 ft.) | 10 | Exposure Factor Datasets | |
| Home Range | 0.12 | 0.02 - 0.31 | acres | Female | Juvenile | Bass Lake (elev., 4500 ft.) | 12 | Exposure Factor Datasets | |
| Population Density | range of means for 4 trapping periods | 8.0 - 16.8 | #/acre | Both Male and Female | Both Adults and Juveniles | Bass Lake (elev., 4500 ft.) | 4 trapping periods | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Metabolic Rate | basal metabolic rate measured as oxygen consumption at 26 - 29C; body weight range = 15.2 - 17.1g | 1.55 - 1.65 | cc O2/g/hr | Male | Adult | 2 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | based on presence of recent corpora lutea; ages inferred from body weights | 32 -35 | d | Female | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 1546 | Exposure Factor Datasets | ||
| Age at Sexual Maturity | based on presence of swollen tubules of cauda epididymides and enlarged seminal vesicles, ages inferred from body weights | 40 - 60 | d | Male | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 1546 | Exposure Factor Datasets | ||
| Clutch or Litter Size | 4.6 | based on # of implanted embryos; monthly means (Mar. - Nov.) ranged from 4.0 - 5.7 | 0.11 SE | #/litter | Female | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 96 | Exposure Factor Datasets | |
| Time of Mating/ Laying | Feb. - Mar. (begin), Mar. - May (peak), July - Aug. (possible 2nd peak), Aug. - Dec. (end) | based on % fecund specimens | Both Male and Female | Adult | western slope of Sierra Nevada (elev., 3500-5000 ft.) | 1546 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | seeds (34-53%); fruits (0-22%); arthropods (26-36%); leaves (7-12%); fungi (0-7%); misc. (3-10%) | volumetric % of stomach contents, range of means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 778 | Exposure Factor Datasets |
| Dietary Composition | seeds (0-81%); fruits (2-19%); arthropods (9-57%); leaves (1-18%); fungi (0-26%); misc. (0-42%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 40-88 | Exposure Factor Datasets |
| Dietary Composition | seeds (0-80%); fruit (0-30%); arthropods (0-80%); leaves (7-32%); fungi (0%); misc. (0-19%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 53-66 | Exposure Factor Datasets |
| Dietary Composition | seeds (6-49%); fruit (0-24%); arthropods (27-80%); leaves (0-20%); fungi (0-5%); misc. (0-18%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 48-59 | Exposure Factor Datasets |
| Dietary Composition | seeds (0-68%); fruit (0-24%); arthropods (0-47%); leaves (0-19%); fungi (0-43%); misc. (0-27%) | volumetric % of stomach contents, range of monthly means for 2 yrs. and 2 habitat types | % | Not Reported | Not Reported | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 78-105 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Water Ingestion Rate | range of means from 10 experiments | 0.114 - 0.372 | cc/g/d | Both Male and Female | Not Reported | 4-8 animals/experiment; 10 experiments | Exposure Factor Datasets |
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