California
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Type |
---|---|---|---|---|---|
Time of Mating/ Laying | March 25 (begin) - May 20 (end) | Not Reported | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.9 | eggs | Not Reported | Not Reported | 521 | Sacramento Valley | Exposure Factor Datasets |
Clutch or Litter Size | 8.2 | eggs | Not Reported | Not Reported | 246 | San Joaquin Valley | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | 30,438 | mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 | Both Male and Female | Both Adults and Juveniles | Not Reported | San Joaquin Valley | Exposure Factor Datasets | |
Population Density | 15,221 | mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 | Both Male and Female | Both Adults and Juveniles | Not Reported | Suisun Marsh | Exposure Factor Datasets | Solano |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.5626 | survival estimates for birds banded 1966-1985 | Female | Juvenile | 8,205 | Central California | Exposure Factor Datasets | 0.0445 (SE) |
Survival/ Mortality | 0.3948 | survival estimates for birds banded 1972-1981 | Female | Juvenile | 1,396 | Central California | Exposure Factor Datasets | 0.0458 (SE) |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.72 | ducks/acre | Both Male and Female | Both Adults and Juveniles | Not Reported | Conaway Ranch | Exposure Factor Datasets | Yolo | non-breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 61 | average survival rate of birds banded 1948-1982 | percent | Male | Adult | Not Reported | Sacramento and San Joaquin Valleys, n.e. CA | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. gambelii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 0.13 | mean dry stomach content mass | g | Male | Juvenile | 18 | Tule Lake National Wildlife Refuge (1230 m) | Exposure Factor Datasets | Siskiyou | 0.02 SE |
Food Ingestion Rate | 0.15 | mean dry stomach content mass | g | Female | Juvenile | 22 | Tule Lake National Wildlife Refuge (1230 m) | Exposure Factor Datasets | Siskiyou | 0.03 SE |
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | May 22 | median date of laying | Female | Adult | 27 pairs | Great Basin (elev. 1260-2340 m) | Exposure Factor Datasets | Lassen |
Time of Hatching or Parturition | June 21 | median hatching date | Both Male and Female | Hatchling | 27 pairs | Great Basin (elev. 1260-2340 m) | Exposure Factor Datasets | Lassen |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Population Density | 23 | individuals per 96 km2 | Both Male and Female | Adult | 23 | agricultural lands (lat, 38 deg 32'N; long., 121 deg 47'W) | Exposure Factor Datasets | Yolo | Breeding | |
Foraging Distance | distance foraged from nest | km | Female | Adult | 4 | agricultural lands (lat, 38 deg 32'N; long., 121 deg 47'W) | Exposure Factor Datasets | Yolo | Breeding |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | body weight at hatch | g | Both Male and Female | Hatchling | Not Reported | Sagehen Creek Field Station | Exposure Factor Datasets | Nevada, Sierra |
Sea Otter (Enhydra lutris)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 44 | Home range for non-territorial males | ha | Male | Adult | 7 | Monterey | Exposure Factor Datasets | Monterey | 13.36 SE |
Home Range | 80 | ha | Female | Adult | 8 | Monterey | Exposure Factor Datasets | Monterey | 19.04 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | <80 or >120 | estimate time period that pups spent with mothers | d | Not Reported | Juvenile | 24 animals | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of body weights | kg | Female | Adult | 2 otters | near Monterey | Exposure Factor Datasets | Monterey |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Home Range | daily home range, estimated from hourly trangulations during 24-hr watches using the minimum convex polygon method | ha | Male | Juvenile | 5 animals | Monterey to San Luis Obispo | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Home Range | 40.3 | ha | Male | Adult | 10 | Central coast | Exposure Factor Datasets | 4.0 SE |
Deer Mouse (Peromyscus maniculatus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 17.6 | g | Both Male and Female | Adult | 20 | White Mountain Research Station (elev., 3800 m) | Exposure Factor Datasets | Inyo, Mono | 2.91 SD |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Home Range | 0.24 | acres | Male | Adult | 29 | Bass Lake (elev., 4500 ft.) | Exposure Factor Datasets |
Home Range | 0.21 | acres | Female | Adult | 27 | Bass Lake (elev., 4500 ft.) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
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 | 48-59 | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | 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 | 78-105 | western slope of Sierra Nevada (elev., 3500 - 5000 ft.) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 34.6 | g | Both Male and Female | Both Adults and Juveniles | 47 | Exposure Factor Datasets | Calaveras | 0.23 |
Western Fence Lizard (Sceloporus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Torpor or Hibernation | Nov. - Mar. | Not Reported | Both Adults and Juveniles | 93 | Strawberry Canyon, Berkeley Hills | Exposure Factor Datasets | ||
Clutch or Litter Size | 13.7 | estimated by number of developing ova | eggs/clutch | Female | Adult | 7 | Strawberry Canyon, Berkeley Hills | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 0.052 | resting metabolic rate at 18.5C, estimated as carbon dioxide production rate | ml CO2/g/hr | Not Reported | Juvenile | 4 | Ecology Research Area, University of California, Los Angeles | Exposure Factor Datasets | 0.012SE |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 20 | mo | Both Male and Female | Adult | Not Reported | central Sierra Nevada (elev., 1500 or 2200m) | Exposure Factor Datasets |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Body Weight - Mean | g | Not Reported | Not Reported | 60 | U.S. International University Campus | Exposure Factor Datasets | San Diego |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | July - Sept. | Both Male and Female | Hatchling | Not Reported | Hastings Reservation | Exposure Factor Datasets | Monterey |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | mammals (41.2%), birds (2.0%), insects (23.3%), vegetation (55.5%) | mean percent occurrence in pellets | Both Male and Female | Not Reported | 366 pellets | Oakland Airport | Exposure Factor Datasets |
Dietary Composition | mammals (35.7%), birds (1.3%), insects (27.7%), vegetation (57.4%) | mean percent occurrence in pellets | Both Male and Female | Not Reported | 929 pellets | Oakland Airport | Exposure Factor Datasets |
Desert Tortoise (Gopherus agassizi)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 32.9 | egg weight | g | Not Reported | Embryo | 6 | Fenner Valley, Goffs (elev., 680m) {lat., 34^o51'N; long., 115^o09'W] | Exposure Factor Datasets | San Bernardino | 5.1 SD |
Body Fat (total or %) | 6.13 | % lipid content of fresh egg mass | % | Not Reported | Embryo | 6 | Fenner Valley, Goffs (elev., 680m) {lat., 34^o51'N; long., 115^o09'W] | Exposure Factor Datasets | San Bernardino |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | grasses (3.6-33%); cacti (37.0-86.9%); annuals (5.0-18.6%); perennials other than cacti (0.8-2.7%); seeds (3.3-16.0%); other (0.4-2.6%) | relative frequency of material in fresh scat, range for 2 sampling periods over 2 years | % | Both Male and Female | Adult | 189-195 scat samples/yr | Ivanpah Valley [lat., 35^o23'N; long., 115^o18'W] | Exposure Factor Datasets | San Bernardino |
San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)
Exposure Endpoint Type | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Survival/ Mortality | Survival rates of radiocollared foxes for 1990, 1991 | Both Male and Female | Both Adults and Juveniles | 57 foxes | extreme southern San Joaquin Valley | Exposure Factor Datasets | Kern |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Kangaroo rats (80.7%), rabbits (46.2%), squirrels (9.6%), cottontails (5.8%), pocket mouse (1.9%), unident. insects (59.6%), scorpions (17.3%), Jerusalem crickets (13.5%), insect larvae (11.5%), ants (9.6%), grasshoppers (5.8%), beetles (3.8%), spiders (1.9%) | frequency of occurrence in scat analyses | % | Both Male and Female | Not Reported | 52 scat groups | Exposure Factor Datasets | Kern |
Desert Kit Fox (Vulpes macrotis ssp. arsipus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 2034 | g | Male | Adult | 15 foxes | Rand Open Area and Desert Tortoise Research Natural Area | Exposure Factor Datasets | Kern | 78 SE |
San Joaquin Fence Lizard (Sceloporus occidentalis ssp. biseriatus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Apr. - July | time of mating and laying | Female | Adult | 118 | Puente Hills and San Gabriel River, Whittier | Exposure Factor Datasets | Los Angeles |
Pacific Giant Salamander (Dicamptodon tenebrosus)
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 |
California Sea Lion (Zalophus californianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 5.96 | daily milk intake as % of pup body weight | %/d | Male | Pup | 5 | San Nicolas Island | Exposure Factor Datasets | 1-2 mo | 0.405 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | northern anchovy (51.3%); jack mackerel (24.6%); pelagic crab (21.2%); Pacific whiting (19.6%); rockfish (19.0%); market squid (16.3%); blacksmith (10.7%); Pacific mackerel (9.5%); octopus (5.1%); squid (2.2%); senorita (1.1%); lanternfish (1.3%) | % of scats in which major (>1%) prey occurred | % | Not Reported | Not Reported | 1309 scats | San Clemente Island | Exposure Factor Datasets |
California Newt (Taricha torosa)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | 2.6 | #/10 m2 | Not Reported | Adult | Not Reported | Santa Monica Mountains | Exposure Factor Datasets | Los Angeles |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of means for 8 sampling dates | g | Female | Adult | 1-6/sampling date | Palo Alto | Exposure Factor Datasets | post-spawning |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | range of mean density estimates for six pools without crayfish over two time periods | #/10m2 | Not Reported | Adult | Not Reported | Trancas Creek, Santa Monica Mountains | Exposure Factor Datasets | Los Angeles |
Western Pond Turtle (Actinemys marmorata formerly Clemmys marmorata)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Home Range | 400 | average distance moved along stream between relocations | m | Male | Adult | 19 | Hayfork Creek (elev., 610m) | Exposure Factor Datasets | Trinity |
Sideblotched Lizard (Uta stansburiana)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 10 | mo | Female | Adult | 162 | San Gabriel Mountains (elev., 1585-1829m) | Exposure Factor Datasets | Los Angeles |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | range of average densities estimated over 2 yrs | #/ha | Not Reported | Not Reported | Not Reported | Panamint Valley (elev., 790m), [lat., 36^o20'N; long., 117^o30' W] | Exposure Factor Datasets | Inyo |
Desert Iguana (Dipsosaurus dorsalis)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | 332 | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | Thousand Palms | Exposure Factor Datasets | Riverside |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 3.5 | average snout-vent length = 5.1 cm | g | Not Reported | Hatchling | 5 - 52/sampling time | Thousand Palms | Exposure Factor Datasets | Riverside |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | log weight = 0.010 SVL + 0.46 | relationship between body weight (g) and snout-vent length (SVL, mm) | g | Female | Adult | Not Reported | Palm Desert | Exposure Factor Datasets |
Blunt-nosed Leopard Lizard (Gambelia sila formerly Gambelia silus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3 | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets | Kern, San Joaquin, San Luis Obispo, Tulare |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|
Growth Rate | 1.6 | increase in snout-vent length from 8 to 12 mo | mm/mo | Female | 2 | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | 8 - 12 mo | Kern, Kings, Tulare |
Coachella Valley Fringe-toed Lizard (Uma inornata)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Apr. - Aug. | time of breeding | Both Male and Female | Adult | Not Reported | Coachella Valley | Exposure Factor Datasets | Riverside |
Island Night Lizard (Xantusia riversiana)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Population Density | #/ha | Not Reported | Not Reported | Not Reported | Santa Barbara Island | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | determined by embryo count | young/female | Female | Adult | 4 | San Nicolas Island | Exposure Factor Datasets |
Mourning Dove (Zenaida macroura)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 14-15 | incubation period | d | Both Male and Female | Embryo | Not Reported | Gray Lodge State Refuge | Exposure Factor Datasets | Butte |
Pacific Treefrog (Pseudacris regilla formerly Hyla regilla)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | 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 |
Southern Long-toed Salamander (Ambystoma macrodactylum ssp. sigillatum)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Age at Sexual Maturity | 3 | yrs | Both Male and Female | Adult | Not Reported | Big Meadow (elev., 1980m) and Mosquito Lakes (elev., 2450 m) | Exposure Factor Datasets | Alpine, Calaveras |
Brush Rabbit (Sylvilagus bachmani)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Feb. - May | time of breeding | Male | Adult | Not Reported | Berkeley Hills | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii ssp. vallicola)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Home Range | acres | Both Male and Female | Both Adults and Juveniles | Not Reported | San Joaquin Experimental Range | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.6 | young/litter | Female | Adult | 19 | Exposure Factor Datasets |
California Ground Squirrel (Spermophilus beecheyi)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 571 | g | Female | Adult | 100 | University of California, Santa Cruz Campus ( elev., 120 m) [lat., 37^0W; long., 122^oW] | Exposure Factor Datasets | Santa Cruz | lactating |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|
Population Density | 32.0 | #/ha | Not Reported | Adult | 5 study sites | Concord Naval Weapons Station | Exposure Factor Datasets | Contra Costa | 16.23 SD |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.9 | young/litter | Female | Adult | 14 | University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] | Exposure Factor Datasets | Santa Cruz | primiparous |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutches or Litters per year | evidence for 2nd litter in 20% of reproductively active females | litters/yr | Female | Adult | Not Reported | Coho creek | Exposure Factor Datasets | Tulare |
Riparian Brush Rabbit (Sylvilagus bachmani ssp. riparius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Home Range | review | reported home range for males was 957m2 for males and 244 m2 for females (from unpublished reports) | Both Male and Female | Not Reported | Not Reported | Caswell Memorial State Park | Exposure Factor Datasets |
California Clapper Rail (Rallus longirostris ssp. obsoletus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | range of mean densities | birds/ha | Both Male and Female | Adult | 5 sites | San Francisco Bay | Exposure Factor Datasets | Alameda, Marin, San Mateo, Santa Clara, Sonoma |
California Vole (Microtus californicus)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|
Population Density | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | Richmond Field Station | Exposure Factor Datasets | Contra Costa | breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 5.2 | mean; height of growing season | pups/litter | Female | Adult | 13 | Richmond Field Station | Exposure Factor Datasets | Contra Costa | 0.8 (95%CI) |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Population Density | 550 | peak density | #/ha | Both Male and Female | Both Adults and Juveniles | Not Reported | Russell Reservation | Exposure Factor Datasets | Contra Costa |
Exposure Endpoint Type | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Survival/ Mortality | range of mean minimum survival rates per 14 d | Male | Juvenile | 2 periods of weekly sampling | Tilden Regional Park | Exposure Factor Datasets |
Western Skink (Eumeces skiltonianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.7 | based on oviducal egg counts | eggs/clutch | Female | Adult | 6 | Exposure Factor Datasets | San Bernardino |
San Joaquin Antelope Squirrel (Ammospermophilus nelsoni)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Time of Hatching or Parturition | Mar. | Not Reported | Neonate | Not Reported | Panoche (elev., 1200') | Exposure Factor Datasets | San Benito |
Great Horned Owl (Bubo virginianus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Microtus (66.7%), Peromyscus (27.6%), Dipodomys (1.1%), Sylvilagus (0.3%), Euphagus cyanocephalus (0.3%), Sorex (0.2%), Tadarida brasiliensis (0.2%), Mustela frenata (0.2%), unident. bird (1.4%), unident. small mammal (0.7%), insect (1.3%) | percent occurence of prey items in pellets | Not Reported | Not Reported | 107 pellets | Tule Lake National Wildlife Refuge | Exposure Factor Datasets | Siskiyou |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | cottontail (61.1%), woodrat (17.9%), kangaroo rat (4.5%), pocket gopher (4.3%), gopher snake (3.7%), ground squirrel (2.4%), other spp (birds, reptiles, amphibians, invertebrates; 6.1%) | percent occurrence by weight in pellets | Not Reported | Not Reported | 654 pellets, 1471 prey items | San Joaquin Experimental Range | Exposure Factor Datasets | Madera |
California Least Tern (Sterna antillarum ssp. browni)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | May-early Jul (first wave), late May-Aug (second wave) | nesting periods of early (first wave) and late (second wave) birds | Both Male and Female | Adult | 8-10 pairs (first wave), 29 pairs (second wave) | NASA Island, Seal Beach National Wildlife Refuge | Exposure Factor Datasets | Orange |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 17/32 to 33/33 | range of numbers of clutches lost of total numbers of clutches in a colony | Not Reported | Chick, Embryo | 7 colonies, 8 years | coast | Exposure Factor Datasets | Los Angeles, Orange |
Ornate Shrew (Sorex ornatus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | range of mean monthly weights | g | Both Male and Female | Juvenile | 1-7/mo | San Francisco Bay region | Exposure Factor Datasets |
Northwestern willow flycatcher (Empidonax traillii ssp. brewsteri)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | May 15 | date of earliest arrival of spring migrants | Both Male and Female | Not Reported | Not Reported | Exposure Factor Datasets |
Merriam's Kangaroo Rat (Dipodomys merriami)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 4 | wk | Female | Adult | Not Reported | Owens Valley, Big Pine (lat., 37^o11'N) | Exposure Factor Datasets | Inyo |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | see citation | figure of seasonal changes in weight | g | Both Male and Female | Both Adults and Juveniles | Not Reported | Indian Cove, Joshua Tree National Monument | Exposure Factor Datasets |
Bushtit (Psaltriparus minumus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Population Density | 72.8 | density estimate on an ungrazed plot by point count using an exponential polynomial model | birds/40 ha | Not Reported | Not Reported | 43 birds | San Joaquin Experimental Range | Exposure Factor Datasets | Madera | 50.1-95.5 95% CI |
Ensatina (Ensatina eschscholtzii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 22.2 | mean final distance from original site of capture | m | Female | Adult | Not Reported | Calaveras Big Trees State Park (elev., 1400m) | Exposure Factor Datasets | Calaveras | 2.8 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutches or Litters per year | 1 | clutch/yr | Female | Adult | Not Reported | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa |
Western Snowy Plover (Charadrius nivosus ssp. nivosus formerly Charadrius alexandrinus ssp. nivosus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Territory Size | <0.5 | defended nesting territory size on salt pan habitat | ha | Both Male and Female | Adult | Not Reported | Pajaro River Mouth | Exposure Factor Datasets | Monterey |
Least Bell's Vireo (Vireo bellii ssp. pusillus)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | percent of nesting pairs that successfully raised at least one young (range over two years) | % | Both Male and Female | Adult | 43-48 pairs (2 yrs) | Gibraltar Reservoir | Exposure Factor Datasets | Santa Barbara |
Coyote (Canis latrans)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties |
---|---|---|---|---|---|---|---|---|---|---|
Dietary Composition | leporid (57.6%); rodent (27.1%); livestock (27.1%); bird (20.3%); insect (11.9%); other (25.4%) | % frequency of occurrence in stomach contents | % | Both Male and Female | Juvenile | 59 | Naval Petroleum Reserves (elev., 88-473m) [lat., 35^oN; long., 119^oN] | Exposure Factor Datasets | 1 yr | Kern |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 11.4 | kg | Male | Juvenile | 10 | Naval Petroleum Reserves (elev., 88 - 473 m) | Exposure Factor Datasets | 1yr | Kern | 0.2 SE |
Bullfrog (Lithobates catesbeianus formerly Rana catesbeiana)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
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 |
Fresno Kangaroo Rat (Dipodomys nitratoides ssp. exilis)
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Population Density | range for 2 sites; mean density for 4 sampling periods | #/ha | Not Reported | Not Reported | 68 - 326 animals/site | Whitesbridge Rd. | Exposure Factor Datasets | Fresno |
Song Sparrow (Melospiza melodia)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Time of Mating/ Laying | early Feb.-July | Both Male and Female | Adult | Not Reported | California to Washington | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Territory Size | 9.1 | territory width across sloughs | m | Both Male and Female | Adult | 64 sample areas | Suisun Bay; San Francisco Bay; San Pablo Bay | Exposure Factor Datasets | Contra Costa | breeding |
Song Sparrow (Melospiza melodia), Suisun Song Sparrow (Melospiza melodia ssp. maxillaris), San Pablo Song Sparrow (Melospiza melodia ssp. samuelis)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|
Population Density | see table 1 | Both Male and Female | Adult | 64 sites | San Francisco Bay region | Exposure Factor Datasets | Alameda, Contra Costa | breeding |
Merriam's Kangaroo Rat (Dipodomys merriami), Little Pocket Mouse (Perognathus longimembris)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|
Time of Molt | July and August | Not Reported | Not Reported | Not Reported | Owens Valley | Exposure Factor Datasets | Inyo |
Deer Mouse (Peromyscus maniculatus ssp. sonoriensis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.88 | potential litter size; estimated using the larger of corpora lutea count or embryo sites | #/litter | Female | Adult | 26 | White Mountain (elev.,12,400 ft) | Exposure Factor Datasets | Mono | 0.46 SE |