Frogs and toads (Anura)
Bullfrog (Lithobates catesbeianus formerly Rana catesbeiana)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 10.7 | g | Not Reported | Juvenile | 25 | Exposure Factor Datasets | newly transformed | Laboratory | |
| Body Weight - Mean | 17.5 | g | Not Reported | Juvenile | 25 | Exposure Factor Datasets | 1 mo post-transformation | Laboratory | |
| Body Weight - Mean | 29.8 | g | Not Reported | Juvenile | 25 | Exposure Factor Datasets | 2 mo post-transformation | Laboratory | |
| Body Weight - Mean | 42.4 | g | Not Reported | Juvenile | 25 | Exposure Factor Datasets | 3 mo post-transformation | Laboratory | |
| Body Weight - Mean | 55.8 | g | Not Reported | Juvenile | 25 | Exposure Factor Datasets | 4 mo post-transformation | Laboratory |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Longevity | yr | Not Reported | Adult | Not Reported | Edwin S. George Reserve, Ann Arbor | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | yr | Both Male and Female | Tadpole | Not Reported | Ithaca | Exposure Factor Datasets | |
| Time of Fledging or Metamorphosis | July - Oct. | Both Male and Female | Tadpole | Not Reported | Ithaca | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | 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 | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 142.8 | g | Not Reported | Adult | 39 | York County, New Brunswick [lat., 45^o47'; long., 66^o37'] | Exposure Factor Datasets | CANADA | 77.4 SD |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | July | laying | Female | Adult | Not Reported | Angelo Coast Range Reserve [lat., 39^o44'N; long., 123^o39'W] | Exposure Factor Datasets | Mendocino | |||
| Population Density | 18.2 | #/m2 | Both Male and Female | Tadpole | 17 quadrats | Angelo Coast Range Reserve [lat., 39^o44'N; long., 123^o39'W] | Exposure Factor Datasets | "overwintered" tadpoles | Mendocino | 13.1 SD | |
| Population Density | 90.9 | #/m2 | Both Male and Female | Tadpole | 20 quadrats | Angelo Coast Range Reserve [lat., 39^o44'N; long., 123^o39'W] | Exposure Factor Datasets | "overwintered" tadpoles | Mendocino | 97.7 SD |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 0.42 | probability of survival (age x-1 to age x) | Male | Not Reported | Edwin S. George Reserve | Exposure Factor Datasets | 2 or 3 yrs | |
| Survival/ Mortality | 0.52 | probability of survival (age x-1 to age x) | Male | Adult | Not Reported | Edwin S. George Reserve | Exposure Factor Datasets | 4 yrs |
| Survival/ Mortality | 0.23 | probability of survival (age x-1 to age x) | Male | Adult | Not Reported | Edwin S. George Reserve | Exposure Factor Datasets | 5 yrs |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | see citation | figures of oxygen consumption of submerged tadpoles measured at various oxygen tensions and pre-metamorphic stages | ul/g/hr | Not Reported | Tadpole | 10/group | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Decapoda: Astacidae (47.7%); Lepidoptera (19.0%); Coleoptera: Lampryidae (5.8%); Chrysomelidae (5.8%); Carabidae (4.1%); Curculionidae (0.3%); Chilopoda (7.7%); sand, gravel (1.2%); unidentified (1%) | % volume of stomach contents | % | Not Reported | Not Reported | 18 | Breathitt and Perry counties | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | frogs (12.1%); goldfish (30.3%); gastropods (12.4%); crayfish (9.3%); arachnida (4.4%); coleoptera adult (10.6%); hemiptera (8.2%); orthoptera (8.7%) | % of stomachs containing major (>4%) food items | % | Not Reported | Adult | 772 | goldfish pond, Richland | Exposure Factor Datasets |
| Dietary Composition | frogs (13.0%); shiners (27.5%); gastropods (16.1%); crayfish (16.3%); arachnida (4.5%); coleoptera adult (10.5%); hemiptera (13.5%); orthoptera (5.8%); lepidoptera larvae (4.5%); odonata adult (4.2%) | % of stomachs containing major (>4%) food items | % | Not Reported | Adult | 553 | bait minnow pond, Richland | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 175.9 | g | Both Male and Female | Adult | 30 | Exposure Factor Datasets | 8.16 SE | Laboratory | ||
| Inhalation Rate | see citation | figure of breathing frequency (breaths/min) at various seasons, temperatures and oxygen levels | Both Male and Female | Adult | 6/group | Exposure Factor Datasets | Laboratory | |||
| Metabolic Rate | see citation | figure of oxygen consumption at various body temperatures within seasons | Both Male and Female | Adult | 6/group | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.1582 | resting oxygen consumption at 23C | ml O2/hr/tadpole | Not Reported | Tadpole | 19 | Exposure Factor Datasets | 0.009 SE | Laboratory |
Northern Red-legged Frog (Rana aurora) formerly Rana aurora ssp. aurora
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Feb. - Apr. | time of breeding and laying | Both Male and Female | Adult | Not Reported | White Rock, British Columbia | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Feb. - Apr. | time of first observance of egg masses | Female | Adult | observations over 3 yrs | Marion Lake, southern British Columbia (elev., 300m) | Exposure Factor Datasets | CANADA | ||
| Time of Hatching or Parturition | May | Not Reported | Embryo | observations over 3 yrs | Marion Lake, southern British Columbia (elev., 300m) | Exposure Factor Datasets | CANADA | |||
| Population Density | 500 | maximum reported density | #/m2 | Not Reported | Tadpole | Not Reported | Marion Lake, southern British Columbia (elev., 300m) | Exposure Factor Datasets | CANADA | |
| Time of Fledging or Metamorphosis | July - Oct. | Not Reported | Tadpole | Not Reported | Marion Lake, southern British Columbia (elev., 300m) | Exposure Factor Datasets | CANADA | |||
| Clutch or Litter Size | 531 | #/egg mass | Female | Adult | 35 egg masses | Marion Lake, southern British Columbia (elev., 300m) | Exposure Factor Datasets | CANADA | 19 SE | |
| Survival/ Mortality | 5 | survival of larval population until metamorphosis | % | Not Reported | Tadpole | Not Reported | Marion Lake, southern British Columbia (elev., 300m) | Exposure Factor Datasets | CANADA | |
| Body Weight - Mean | log W = -4.60 + 3.085(log L) | regression equation relating body weight (W; mg, dry wt.) to body length (L; mm) | mg | Not Reported | Tadpole | Not Reported | Marion Lake, southern British Columbia (elev., 300m) | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | see citation | frequency of occurrence and food item abundance of 53 items (family level and prey lifestage) in stomach contents | Both Male and Female | Both Adults and Juveniles | 26-104/lifestage | White Rock, British Columbia [lat., 49^o02'N; long., 122^o39'W] | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 0.59 | oxygen consumption at 18.5C | cm3 O2/egg/hr | Not Reported | Embryo | 6 replicates with 30 embryos each | Exposure Factor Datasets | stage 12 - 15 | 0.10 SD | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Countries |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 680 | # ova/egg mass | Female | Adult | Not Reported | White Rock, British Columbia | Exposure Factor Datasets | CANADA | ||
| Survival/ Mortality | embryo survival, estimated by counting # dead embryos in 100 eggs/egg mass | % | Not Reported | Embryo, Juvenile | 22 egg masses | White Rock, British Columbia | Exposure Factor Datasets | stage 13 | CANADA | |
| Survival/ Mortality | <1 | survival from hatching to metamorphosis | % | Not Reported | Tadpole | 9,901-12,512 hatching embryos | White Rock, British Columbia | Exposure Factor Datasets | CANADA | |
| Survival/ Mortality | 5.3 | survival from tadpole to young-of-the-year frogs | % | Not Reported | Tadpole | Not Reported | White Rock, British Columbia | Exposure Factor Datasets | CANADA | |
| Survival/ Mortality | 68.6 | annual minimal survival | % | Not Reported | Adult | 67 | White Rock, British Columbia | Exposure Factor Datasets | CANADA | |
| Survival/ Mortality | 18.0 | annual minimal survival | % | Not Reported | Both Adults and Juveniles | 256 | White Rock, British Columbia | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Jan. - Feb. | time of egg laying | Female | Adult | Not Reported | Corvallis | Exposure Factor Datasets | |
| Clutch or Litter Size | #/egg mass | Female | Adult | 6 egg masses | Corvallis | Exposure Factor Datasets | ||
| Time of Fledging or Metamorphosis | June - July | Not Reported | Tadpole | Not Reported | Corvallis | Exposure Factor Datasets | ||
| Age at Sexual Maturity | 2 | yr | Both Male and Female | Adult | Not Reported | Corvallis | Exposure Factor Datasets | |
| Duration of Incubation or Gestation | time from egg to hatching under field conditions | wks | Not Reported | Embryo | Not Reported | Corvallis | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Feb. - Mar. | determined by presence of calling males and new egg masses | Both Male and Female | Adult | Not Reported | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets | |
| Clutch or Litter Size | 600 | #/ egg mass | Female | Adult | Not Reported | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets | |
| Duration of Incubation or Gestation | 35 | time from egg to hatching, water temperature ranged from 4.5 - 7.8C | d | Both Male and Female | Embryo | 35 egg masses | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets |
| Time of Hatching or Parturition | Apr. | Both Male and Female | Embryo | Not Reported | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets | ||
| Body Weight - Mean | 6.46 | average maximum weight (75.9 mm total length) | g | Not Reported | Tadpole | Not Reported | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets |
| Growth Rate | 0.62 | average growth rate (total length) from stages 23-30 | mm/d | Not Reported | Tadpole | Not Reported | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets |
| Growth Rate | 0.99 | average growth rate (total length) from stages 30-39 | mm/d | Not Reported | Tadpole | Not Reported | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets |
| Time of Fledging or Metamorphosis | July | Not Reported | Tadpole | Not Reported | Lake Louise Wildlife Sanctuary, Bellingham, Whatcom county (elev., 120m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Mating/ Laying | review | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | see citation | figure of mean mass of larvae with and without bullfrog presence | Not Reported | Hatchling | 100-150 | field enclosures at E.E. Wilson Wildlife Refuge, Benton County | Exposure Factor Datasets | Gosner stage 25 larvae |
| Age at Fledging, Metamorphosis, Weaning | see citation | figure of mean time to metamorphosis with and without bullfrog presence | Not Reported | Hatchling | 100-150 | field enclosures at E.E. Wilson Wildlife Refuge, Benton County | Exposure Factor Datasets | Gosner stage 25 larvae |
California Toad (Anaxyrus boreas ssp. halophilus formerly Bufo boreas ssp. halophilus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Isopoda (31.23%); Diplopoda (0.66%); Arachnida (2.14%); Orthoptera (0.35%); Dermaptera (2.65%); Coleoptera (54.06%); Lepidoptera (2.67%); Diptera (0.04%); Hymenoptera (5.92%); Unknown insects (0.3%) | % occurrence in fecal pellets examined | % | Not Reported | Adult | 320 fecal pellets/ 6 animals | residential lawn, Bakersfield [lat., 35^o21'N; long., 119^o09'W] | Exposure Factor Datasets | Kern |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 2.5 | g | Not Reported | Juvenile | Not Reported | Exposure Factor Datasets | one-yr or newly metamorphosed | Santa Cruz | |||
| Growth Rate | see citation | figure of weight increase in juvenile toads maintained at various temperatures | Not Reported | Juvenile | 9-11 animals/group | Exposure Factor Datasets | one-yr or newly metamorphosed | Laboratory |
Boreal Toad (Anaxyrus boreas ssp. boreas formerly Bufo boreas ssp. boreas)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Apr. - July | time of mating | Both Male and Female | Adult | Not Reported | ponds, Missoula and Ravalli counties | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 40.2 | g | Both Male and Female | Adult | 50 | East River Valley, Gothic, Gunnison county (elev., 3000 - 3355m) | Exposure Factor Datasets | 5.62 SE | ||
| Metabolic Rate | log SMR = -2.23 + 0.037(T) | equation relating standard metabolic rate (SMR; cm3 O2/g/hr), measured as oxygen consumption, to body temperature (T, 10-30C) on animals captured no more than a week before testing | cm3 O2/g/hr | Both Male and Female | Adult | 30 | captured at East River Valley, Gothic, Gunnison county (elev., 3000 - 3355m) | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | log AMR = -1.13 +0.067(T) - 0.0008(T)^2 | polynomial equation relating active metabolic rate (AMR; cm3 O2/g/hr), measured as oxygen consumption, to body temperature (T, 10-30C) in animals captured no more than a week before testing | cm3 O2/g/hr | Both Male and Female | Adult | 49 | captured at East River Valley, Gothic, Gunnison county (elev., 3000 - 3355m) | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Sept. - May | time of hibernation | Not Reported | Adult | 30 | Boulder county (elev., 2,975m) | Exposure Factor Datasets |
Western Toad (Anaxyrus boreas formerly Bufo boreas)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|
| Time of Fledging or Metamorphosis | May - June | Not Reported | Tadpole | Not Reported | San Joaquin Valley | Exposure Factor Datasets | |||
| Body Weight - Mean | 0.429 | g | Not Reported | 20 | San Joaquin Valley | Exposure Factor Datasets | "newly metamorphosed toadlets" | 0.02 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | Log VO2 = 0.75(Log BW) - 2.43 | regression equation relating resting oxygen consumption (VO2; cm3 O2/min) to log body weight (BW; g) at 25-27C | cm3 O2/min | Not Reported | Not Reported | 13 | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | Log VO2 = 0.82(Log BW) - 1.40 | regression equation relating active oxygen consumption (VO2; cm3 O2/min) to log body weight (BW; g) at 25-27C | cm3 O2/min | Not Reported | Not Reported | 76 | Exposure Factor Datasets | Laboratory | |
| Body Weight - Mean | 22.5 | g | Not Reported | Not Reported | 76 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 30.80 | Pulmonary oxygen uptake at 15C | ul O2/g/hr | Not Reported | 10 | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | 71.2 | Pulmonary oxygen uptake at 25C | ul O2/g/hr | Not Reported | 8 | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | 32.54 | Cutaneous oxygen uptake at 25C | ul O2/g/hr | Not Reported | 8 | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | 29.41 | Pulmonary oxygen uptake at 5C | ul O2/g/hr | Not Reported | 10 | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | 26.86 | Cutaneous oxygen uptake at 5C | ul O2/g/hr | Not Reported | 10 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 64.6 | mean and range of body weights | g | Male | Adult | 17 | Garfield County | Exposure Factor Datasets |
| Body Weight - Mean | 92.9 | mean and range of body weight | g | Female | Adult | 18 | Garfield County | Exposure Factor Datasets |
Pacific Treefrog (Pseudacris regilla formerly Hyla regilla)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | July - Oct. | Not Reported | Not Reported | Not Reported | Gorman (elev., 4000 ft) and Palmdale (elev., 2000 ft) | Exposure Factor Datasets | Los Angeles |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Collembola (8.2%); Lepidoptera larvae (14.8%); Hymenoptera (6.6%); Diptera adult (14.5%); Diptera larvae (8.2%); Coleoptera adults (32.8%); Coleoptera larvae (19.7%); Aranea (9.9%); Acarina (3.3%); Isopoda (9.9%); Chilopoda (4.9%); Pulmonata (11.3%); Megadrili (4.9%) | % frogs in which each item occurred in stomach contents | % | Not Reported | Not Reported | 61 | Lakeport (elev., 1300 ft) | Exposure Factor Datasets | Lake |
| Dietary Composition | Collembola (1.4%); Lepidoptera larvae (4.1%); Hymenoptera (4.1%); Diptera adult (8.1%); Diptera larvae (1.4%); Coleoptera adults (14.9%); Coleoptera larvae (4.1%); Plecoptera (2.7%); Hemiptera (6.8%); Aranea (6.8%); Acarina (1.4%) | % frogs in which each item occurred in stomach contents | % | Both Male and Female | Not Reported | 74 | Eureka | Exposure Factor Datasets | Humboldt |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | May - Aug. | time of breeding | Both Male and Female | Adult | Not Reported | South Fork Eel River, Branscomb [lat., 39^o44' N; long., 123^o39'W] | Exposure Factor Datasets | |
| Body Weight - Mean | range of average weight at metamorphosis, tadpoles fed green algae in field enclosures | mg | Both Male and Female | Juvenile | 16-24/group | South Fork Eel River, Branscomb [lat., 39^o44' N; long., 123^o39'W] | Exposure Factor Datasets | |
| Body Weight - Mean | range of average weight at metamorphosis, tadpoles fed seston, detritus or blue green algae in field enclosures | mg | Both Male and Female | Juvenile | 7-12/group | South Fork Eel River, Branscomb [lat., 39^o44' N; long., 123^o39'W] | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Jan. - June | time of breeding | Both Male and Female | Adult | 85 pairs in amplexus | San Diego | Exposure Factor Datasets | ||
| Clutches or Litters per year | estimated by number of times a female was found in amplexus with palpable eggs | clutches/yr | Female | Adult | Not Reported | San Diego | Exposure Factor Datasets | ||
| Clutch or Litter Size | 267.7 | eggs/clutch | Female | Adult | 40 | San Diego | Exposure Factor Datasets | 128.7 SD |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Time of Fledging or Metamorphosis | July - Sept. | Not Reported | Juvenile | Not Reported | Moscow, Latah County (elev., 850m) | Exposure Factor Datasets |
| Time of Hatching or Parturition | May | Not Reported | Hatchling | Not Reported | Moscow, Latah County (elev., 850m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | range of average increase in snout-vent length for 7 size classes (snout vent length; 28.0 - 35.9 mm) | mm/yr | Not Reported | Adult | 13 - 52 | Washington County | Exposure Factor Datasets | |
| Survival/ Mortality | 13.3 | % surviving their first year | % | Not Reported | Juvenile | 15 | Washington County | Exposure Factor Datasets |
| Age at Sexual Maturity | 8 | mo | Not Reported | Adult | Not Reported | Washington County | Exposure Factor Datasets | |
| Survival/ Mortality | 11 | % surviving one year | % | Not Reported | Adult | 373 | Washington County | Exposure Factor Datasets |
| Growth Rate | 2 | increase in snout-vent length | mm/wk | Not Reported | Juvenile | 30 | Washington County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | range of mean oxygen consumption rates measured at 20C | mm3 O2/g/hr | Both Male and Female | Not Reported | 7/location and sex | captured in San Diego, Julian and Willows, CA | Exposure Factor Datasets | Laboratory | ||
| Body Weight - Mean | 2.27 | g | Both Male and Female | Adult | 90 | Exposure Factor Datasets | CANADA, MEXICO |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | spring - summer | breeding | Both Male and Female | Adult | Not Reported | Angelo Coast Range Reserve [lat., 39^o44'N; long., 123^o39'W] | Exposure Factor Datasets | Mendocino | ||
| Population Density | 16.25 | #/m2 | Both Male and Female | Tadpole | 27 quadrats | Angelo Coast Range Reserve [lat., 39^o44'N; long., 123^o39'W] | Exposure Factor Datasets | Mendocino | 7 SD |
Arroyo Toad (Anaxyrus californicus formerly Bufo microscaphus ssp. californicus)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Time of Fledging or Metamorphosis | June - July | Not Reported | Tadpole | Not Reported | Mojave River | Exposure Factor Datasets | San Bernardino |
California Red-legged Frog (Rana draytonii formerly Rana aurora ssp. draytonii)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yrs | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | ||
| Age at Fledging, Metamorphosis, Weaning | mo | Both Male and Female | Tadpole | Not Reported | Exposure Factor Datasets | ||
| Time of Fledging or Metamorphosis | July - Sept. | Both Male and Female | Tadpole | Not Reported | Exposure Factor Datasets |
