Newts and salamanders (Caudata)
California Newt (Taricha torosa)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | range of mean densities of egg masses measured each yr for 4 yrs | #/ 10 m2 | Not Reported | Embryo | 4 yearly surveys | 750m stretch of Cold Creek, Santa Monica Mountains | Exposure Factor Datasets | Los Angeles |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | eggs/mass | Female | Adult | 6 egg masses | Sycamore Canyon Creek, San Gabriel Mountains | Exposure Factor Datasets | Los Angeles |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | time from egg to hatching | wks | Not Reported | Embryo | Not Reported | Santa Monica Mountains | Exposure Factor Datasets | Los Angeles | ||
Population Density | 2.6 | #/10 m2 | Not Reported | Adult | Not Reported | Santa Monica Mountains | Exposure Factor Datasets | Los Angeles | ||
Population Density | range of larval densities in pools with or without adults during June-July | #/m2 | Not Reported | Juvenile | Not Reported | Santa Monica Mountains | Exposure Factor Datasets | larvae | Los Angeles |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of means from 5 sampling dates | g | Male | Adult | 4-7/sampling date | Palo Alto | Exposure Factor Datasets | unmatured gonads |
Body Weight - Mean | range of means for 8 sampling dates | g | Male | Adult | 1-10/sampling date | Palo Alto | Exposure Factor Datasets | sperm evacuated testes |
Body Weight - Mean | range of means from 5 sampling dates | g | Female | Adult | 2-10/sampling date | Palo Alto | Exposure Factor Datasets | mature gonads |
Body Weight - Mean | range of means for 5 sampling dates | g | Female | Adult | 2-6/sampling date | Palo Alto | Exposure Factor Datasets | unmatured gonads |
Body Weight - Mean | range of means for 8 sampling dates | g | Female | Adult | 1-6/sampling date | Palo Alto | Exposure Factor Datasets | post-spawning |
Clutch or Litter Size | ova/mature ovary | Female | Adult | Not Reported | Palo Alto | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 9.7 | g | Male | Adult | Not Reported | Trabuco, Holy Jim and Harding Canyons | Exposure Factor Datasets | Orange | ||||
Metabolic Rate | 0.025 | aerial respiration (oxygen consumption) at 15C | cm3 O2/g/hr | Male | Adult | 12 | Exposure Factor Datasets | terrestrial newts | 0.008 (2SE) | Laboratory | ||
Metabolic Rate | 0.054 | aerial respiration (oxygen consumption) at 15C | cm3 O2/g/hr | Male | Adult | 12 | Exposure Factor Datasets | aquatic newts | 0.004 (2SE) | Laboratory | ||
Metabolic Rate | 0.019 | aquatic respiration (oxygen consumption) at 15C | cm3 O2/g/hr | Male | Adult | 7 | Exposure Factor Datasets | aquatic newts | 0.008 (2SE) | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 132.9 | mean oxygen consumption following activity, measured at 25C | ul O2/g/hr | Not Reported | Not Reported | 8 | Exposure Factor Datasets | 7.7 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 10.67 | g | Not Reported | Adult | Not Reported | Exposure Factor Datasets | Contra Costa, San Francisco | 3.37 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 0.016 (10C), 0.054 (15C), 0.061 (20C), 0.119 (25C) | resting oxygen consumption measured at various temperatures (10-25C) | cm3 O2/g/hr | Male | Adult | Not Reported | Exposure Factor Datasets | aquatic newt | Laboratory |
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 |
Pacific Treefrog (Pseudacris regilla formerly Hyla regilla), California Newt (Taricha torosa)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | see citation | figure of mean duration from fertilization to hatching in field enclosures | Both Male and Female | Embryo | 8 replicates of 150 (frogs) or 16-12 (newts) embryos | Santa Monica Mountains | Exposure Factor Datasets | Los Angeles |
Eastern Long-toed Salamander (Ambystoma macrodactylum ssp. columbianum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | June - July | time of breeding | Both Male and Female | Adult | Not Reported | Wallowa County (elev., 2470m) | Exposure Factor Datasets | ||
Clutch or Litter Size | 90.1 | eggs/female | Female | Adult | 7 | Wallowa County (elev., 2470m) | Exposure Factor Datasets | 48.87 SD |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Clutch or Litter Size | eggs/female | Female | Adult | 11 | Palouse grasslands, Pullman | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 4.63 | g | Male | Adult | 134 | Moscow, Latah County | Exposure Factor Datasets | 0.07 SE |
Ensatina (Ensatina eschscholtzii), Loggerhead Shrike (Lanius ludovicianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Growth Rate | 0.092 | change in snout-vent length measured between recaptures (>1000d) | mm/d | Female | Adult | Not Reported | Calaveras Big Trees State Park (elev., 1400m) | Exposure Factor Datasets | Calaveras | USA | 0.0071 |
Ensatina (Ensatina eschscholtzii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Longevity | range of oldest individuals recorded | yrs | Both Male and Female | Adult | 3 | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa | |
Age at Sexual Maturity | yrs | Both Male and Female | Adult | Not Reported | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa | ||
Dietary Composition | earthworm (1); sowbugs (14); amphipod (1); centipede (1); millipede (4); spiders (6); springtail (1); thysanuran (1); camel crickets (15); lepidopterous larva (1); dipteran (1); beetles (5); ant (1) | number of each food item in stomachs | # | Not Reported | Both Adults and Juveniles | 27 | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa |
Body Weight - Mean | 6 | g | Both Male and Female | Adult | 9 | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa | |
Duration of Incubation or Gestation | mo | Female | Adult | Not Reported | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa | ||
Time of Mating/ Laying | late spring - early summer | time of laying | Female | Adult | Not Reported | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa | |
Time of Mating/ Laying | Oct. - Mar. | time of breeding | Both Male and Female | Adult | Not Reported | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa | |
Time of Hatching or Parturition | fall - early winter | Not Reported | Embryo | Not Reported | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | gastropoda (1.5%); annelida (1.5%); acarina (10.0%); araneida (17.7%); non-insect arthropods (16.9%); collembola (16.2%); hemiptera (8.5%); coleoptera (3.1%); lepidoptera (0.8%); hymenoptera (12.3%); diptera (10.0%); orthoptera (1.5%) | % of total items in stomach contents; Ensatina size class >45 mm | % | Not Reported | Not Reported | <22 | Multonmah County | Exposure Factor Datasets |
Dietary Composition | acarina (32.5%); araneida (22.6%); non-insect arthropods (22.6%); collembola (16.1%); coleoptera (6.5%) | % of total items in stomach contents; Ensatina size class <45 mm | % | Not Reported | Not Reported | <22 | Multonmah County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | sow bugs (42%); centipedes (42%); spiders (60%); springtails (47%); beetles (36%); caterpillars (5%); ants (13%) | % of stomach containing food item | % | Both Male and Female | Both Adults and Juveniles | 45 | Dixie Canyon | Exposure Factor Datasets | Los Angeles |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 0.26 | g | Not Reported | Juvenile | 23 | Portland, Multnomah County | Exposure Factor Datasets |
Body Weight - Mean | 1.60 | g | Both Male and Female | Juvenile | 37 | Portland, Multnomah County | Exposure Factor Datasets |
Body Weight - Mean | 4.30 | g | Female | Adult | 11 | Portland, Multnomah County | Exposure Factor Datasets |
Body Weight - Mean | 2.80 | g | Male | Adult | 19 | Portland, Multnomah County | Exposure Factor Datasets |
Pacific Giant Salamander (Dicamptodon tenebrosus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 20.7 (10C); 31.2 (15C); 63.3 (20C) | average oxygen consumption measured at various temperatures (10-20C) | ul O2/g/hr | Not Reported | Adult | 4-5/temperature | Exposure Factor Datasets | Laboratory | |||
Body Weight - Mean | 20.8 | g | Not Reported | Juvenile | 17 | Exposure Factor Datasets | larvae | 8.3 | Laboratory | ||
Body Weight - Mean | 24.0 | g | Not Reported | Adult | 14 | Exposure Factor Datasets | 9.9 | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Coleoptera adult (0.21); Orthoptera adult (0.13); Diptera adult (0.07); Lepidoptera larvae (0.20); Hymenoptera (0.05); Arachnida (0.15); Acarina (0.05); Diplopoda (0.37); Isopoda (0.05); Gastropoda (0.50); Amphibian (0.75); Reptilia (5.20); Mammalia (5.50); Rocks (0.05); Vegetable matter (0.05) | mean volume of gut contents | cc | Not Reported | Adult | 12 | Exposure Factor Datasets | Del Norte, Humboldt, Marin |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | see citation | monthly % of gut content samples in which organism occurred (n=38 diet items) | Not Reported | Not Reported | 3-34/mo | Maratta Creek, Cowlitz County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Ascaphus truei larvae (14.0%); Gastropoda (2.0%); Nematomorpha (2.0%); Arachnoidea (8.0%); Plecoptera (46.0%); Tricoptera larvae (52.0%); Tricoptera adults (6.0%); Coleoptera larvae (30.0%); Coleoptera adults (28.0%); Ephemeroptera nymphs (28.0%); Emphemeroptera adults (2.0%); Diptera larvae (20.0%); Diptera adults (10.0%); Lepidoptera larvae (4.0%); Orthoptera (2.0%); Misc. (46.0%) | % of stomach contents containing item | % | Not Reported | Juvenile | 50 | Palouse River, Latah County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Ascaphus truei larvae (7%); Gastropoda (1%); Nematomorpha (1%); Arachnoidea (4%); Plecoptera nymphs (23%); Tricoptera larvae (26%); Tricoptera adults (3%); Coleoptera larvae (15%); Coleoptera adults (14%); Ephemeroptera nymphs (14%); Diptera larvae (10%) Diptera adults (5%); Lepidoptera (2%); Orthoptera (1%); Misc. (23%) | % of stomachs containing the item | % | Not Reported | Juvenile | 50 | Palouse River, Latah County | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Ambystoma gracile (39.2%); Trichoptera larvae (19.6%); Trichoptera adults (1.9%); Coleoptera larvae (37.2%); Coleoptera adults (21.6%); Odonata larvae (70.5%); Odonata adults (1.9%); Ephemeroptera nymphs (1.9%); Gammarid amphipoda (3.9%); Hemiptera adults (5.9%); Arachnoidea (3.9%); Chironomidae (19.6%); Oniscoid isopoda (1.9%); Misc. (25.5%); Empty (3.9%) | % frequency of ocurrence in stomach contents | % | Not Reported | Juvenile | 51 | Fern Lake, Arcata | Exposure Factor Datasets | Humboldt |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Population Density | 2.28 | #/m2 | Not Reported | Not Reported | 23 stream reaches | streams in uncut forests, Lane, Douglas and Coos counties | Exposure Factor Datasets | 0.36 SE |
Population Density | 0.50 | #/m2 | Not Reported | Not Reported | 20 stream reaches | streams in logged forests, Lane, Douglas and Coos counties | Exposure Factor Datasets | 0.24 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | May | time of laying | Female | Adult | 2 | Benton County | Exposure Factor Datasets | |
Duration of Incubation or Gestation | 275 | d | Not Reported | Embryo | Not Reported | Benton County | Exposure Factor Datasets |
Santa Cruz Long-toed Salamander (Ambystoma macrodactylum ssp. croceum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Cast skin (10.4%); Annelida (6.5%); Mollusca (7.8%); Chilopoda (3.9%); Isopoda (46.8%); Araneida (1.3%); Collembola (2.6%); Lepidoptera (2.6%); Diptera (2.6%); Orthoptera (6.5%); Coleoptera (14.2%); Unidentified (1.3%) | % of total number of items in stomach contents | % | Not Reported | Adult | 38 | Ellicott Pond | Exposure Factor Datasets | Santa Cruz | |
Dietary Composition | Cladocera (1.12%); Copepoda (0.22%); Ostracoda (12.64%); Chironomidae (23.79%); Corixidae (1.56%); Snails (5.58%); Leeches (4.46%); Oligochaeta (22.30%) and Tadpoles (27.88%) | % by weight of food item in stomach contents | % | Not Reported | Juvenile | 20 | Ellicott Pond | Exposure Factor Datasets | larvae | Santa Cruz |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Jan. - Feb. | time of breeding | Both Male and Female | Adult | Not Reported | Valencia Lagoon, Rio Del Mar | Exposure Factor Datasets | Santa Cruz | |
Age at Sexual Maturity | 2 | yr | Both Male and Female | Adult | Not Reported | Valencia Lagoon, Rio Del Mar | Exposure Factor Datasets | Santa Cruz | |
Clutch or Litter Size | 307 | eggs/clutch | Female | Adult | 5 | Valencia Lagoon, Rio Del Mar | Exposure Factor Datasets | Santa Cruz | |
Growth Rate | see citation | figure of seasonal changes in total length | Both Male and Female | Juvenile | Not Reported | Valencia Lagoon, Rio Del Mar | Exposure Factor Datasets | Santa Cruz |
Long-toed Salamander (Ambystoma macrodactylum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Mating/ Laying | May - July | time of laying | Female | Adult | Not Reported | Crater Lake, Munson Oxbow Pond, Aant Point Pond, Whitehorse Bluff ponds and Lake West | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Inhalation Rate | see citation | tidal volume and breathing rate data | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | Laboratory | ||
Metabolic Rate | see citation | figure of pulmonary and cutaneous oxygen consumption | ul O2/g/hr | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 281.0 | mean oxygen consumption following activity, measured at 25C | ul O2/g/hr | Not Reported | Not Reported | 6 | Exposure Factor Datasets | 19.5 SE | Laboratory |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Population Density | range of larval density estimates in 8 fishless lakes utilizing 3 survey methodologies during day and night | larvae/100 m shoreline | Both Male and Female | Juvenile | Not Reported | North Cascades National Park Service Complex | Exposure Factor Datasets |
Southern Long-toed Salamander (Ambystoma macrodactylum ssp. sigillatum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Cast skin (2.1%); Isopoda (0.7%); Araneida (10.4%); Collembola (10.4%); Diptera (57.0%); Orthoptera (3.5%); Coleoptera (11.9%); Unidentified (4.2%) | % of total number of items in stomach contents | % | Not Reported | Adult | 20 | Mosquito Lakes (elev., 8050 ft) | Exposure Factor Datasets | Alpine |