Clutch or Litter Size
Cave Bat (Myotis velifer)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1 | Young/yr | F | Adult | Exposure Factor Datasets | USA |
Pocketed Free-Tailed Bat (Nyctinomops femorosaccus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Location | Type |
---|---|---|---|---|---|
Clutch or Litter Size | 1 | Young/year | F | Exposure Factor Datasets |
American Robin (Turdus migratorius)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.04 | Eggs per nest | Eggs/nest | B | Embryo | 27 clutches | University of British Columbia | Exposure Factor Datasets | CANADA | 0.59 |
Clutch or Litter Size | 3.25 | Eggs per nest | Eggs/nest | Embryo | 8 clutches | University of British Columbia | Exposure Factor Datasets | CANADA | 0.71 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.8 | Eggs/nest | B | Embryo | 13 | Michigan State University, north campus | Exposure Factor Datasets | USA | 2.6 |
Clutch or Litter Size | 3.2 | Eggs/nest | B | Embryo | 14 | Michigan State University, north campus | Exposure Factor Datasets | USA | 0.19 |
Clutch or Litter Size | 3.4 | Eggs/nest | B | Embryo | 60 | Ithaca | Exposure Factor Datasets | USA | 0.07 |
Clutch or Litter Size | 3.6 | Eggs/nest | B | Embryo | 67 | Ithaca | Exposure Factor Datasets | USA | 0.08 |
Clutch or Litter Size | 3.5 | Eggs/nest | B | Embryo | 30 | Madison | Exposure Factor Datasets | USA | 0.1 |
Clutch or Litter Size | 3.6 | Eggs/nest | B | Embryo | 70 | Madison | Exposure Factor Datasets | USA | 0.07 |
Clutch or Litter Size | 3.3 | Eggs/nest | B | Embryo | 46 | Madison | Exposure Factor Datasets | USA | 0.09 |
Clutch or Litter Size | 3.4 | Eggs/nest | B | Embryo | 42 | Pittsburgh | Exposure Factor Datasets | USA | 0.11 |
Clutch or Litter Size | 3.5 | Eggs/nest | B | Embryo | 13 | East Lansing | Exposure Factor Datasets | USA | 0.18 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.6 | Eggs/nest | B | Embryo | 34 | Montreal | Exposure Factor Datasets | CANADA | 0.7 |
Clutch or Litter Size | Review | Eggs/nest | B | Embryo | See citation Table 1 | Several states | Exposure Factor Datasets | USA | |
Clutch or Litter Size | Clutch 1: 3.8; clutch 2: 3.3 | Eggs/nest | B | Embryo | Clutch 1: 18; clutch 2: 16 | Montreal | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|
Clutch or Litter Size | 3.2 | Eggs per nest | 38 nests | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.17 | Eggs per nest | Eggs/nest | Embryo | 29 clutches | Carbondale area | Exposure Factor Datasets | USA |
Clutch or Litter Size | 3.44 | Eggs per nest | Eggs/nest | Embryo | 81 clutches | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Condition | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | Initial: 3.8; 8 d: 2.5; 8 d successful only: 3.2 | Eggs/nest | Embryo | Not reported | San Juan canyon; Toiyabe Mountains in Lander and Nye Counties | Exposure Factor Datasets | Breeding | USA | Initial: 0.2; 8 d: 0.3; 8 d successful only: 0.2 |
Clutch or Litter Size | Initial: 3.5; 8 d: 1.9; 8 d successful only: 3.0 | Eggs/nest | Embryo | Not reported | Stewart canyon; Toiyabe Mountains in Lander and Nye Counties | Exposure Factor Datasets | Breeding | USA | Initial: 0.1; 8 d: 0.3; 8 d successful only: 0.2 |
Clutch or Litter Size | Initial: 3.6; 8 d: 1.7; 8 d successful only: 3.3 | Eggs/nest | Embryo | Not reported | Clear canyon; Toiyabe Mountains in Lander and Nye Counties | Exposure Factor Datasets | Breeding | USA | Initial: 0.1; 8 d: 0.4; 8 d successful only: 0.2 |
California Whipsnake (Masticophis lateralis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 7.21 | Egg count | Month | Embryo | 19 | Throughout California | Exposure Factor Datasets | USA |
Western Mastiff Bat (Eumops perotis californicus)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Location | Type |
---|---|---|---|---|---|
Clutch or Litter Size | Number of young/pregnancy | B | Embryo | Exposure Factor Datasets |
Santa Cruz Long-Toed Salamander (Ambystoma macrodactylum croceum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 307 | Number of eggs | eggs | F | Adult | 5 | Exposure Factor Datasets | Santa Cruz | USA |
Snowy Egret (Egretta thula)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1989: 3.5, 1990 & 1991: 3.3, 1992: 3.4 | Eggs per nest | Eggs/nest | B | Embryo | See citation | Lake Okeechobee | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3 | Eggs/nest | Embryo | 60 | Merritt Island National Wildlife Refuge, Brevard County | Exposure Factor Datasets | USA | 0.56 |
Clutch or Litter Size | 3.1 | Eggs/nest | Embryo | 49 | Merritt Island National Wildlife Refuge, Brevard County | Exposure Factor Datasets | USA | 0.52 |
Clutch or Litter Size | 2.7 | Eggs/nest | Embryo | 11 | Merritt Island National Wildlife Refuge, Brevard County | Exposure Factor Datasets | USA | 0.65 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | See citation Figure 7 | Young in successful nests | Nestling | See citation | San Francisco bay area | Exposure Factor Datasets | USA | ||
Clutch or Litter Size | Central San Francisco Bay: 2.18, Outer Coast-a: 1.82, Outer coast-b: 1.75, San Pablo Bay-a: 2.49, San Pablo Bay-b: 2.46, Russian River-a: 2.37, Russian River-b: 2.38 | Mean young fledged in successful nests | Fledglings | Fledgling | Central San Francisco Bay: 35, Outer Coast-a: 38, Outer coast-b: 15, San Pablo Bay-a: 160, San Pablo Bay-b: 103, Russian River-a: 97, Russian River-b: 53 | San Francisco bay area | Exposure Factor Datasets | USA | Central San Francisco Bay: 0.135, Outer Coast-a: 0.076, Outer coast-b: 0.086, San Pablo Bay-a: 0.059, San Pablo Bay-b: 0.046, Russian River-a: 0.060, Russian River-b: 0.048 |
Clutch or Litter Size | Central San Francisco Bay: 2.03, Outer Coast-a: 1.27, Outer coast-b: 1.60, San Pablo Bay-a: 2.09, San Pablo Bay-b: 1.54, Russian River-a: 1.66, Russian River-b: 1.75 | Mean young produced in successful nests | Young | Nestling | Central San Francisco Bay: 35, Outer Coast-a: 38, Outer coast-b: 15, San Pablo Bay-a: 160, San Pablo Bay-b: 103, Russian River-a: 97, Russian River-b: 53 | San Francisco bay area | Exposure Factor Datasets | USA | Central San Francisco Bay: 0.236, Outer Coast-a: 0.073, Outer coast-b: 0.193, San Pablo Bay-a: 0.119, San Pablo Bay-b: 0.136, Russian River-a: 0.103, Russian River-b: 0.128 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.9 | No. eggs laid March 23-May 2 | Eggs/nest | Embryo | 77 | Riomar Island, Indian River County | Exposure Factor Datasets | USA | 0.06 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | Delaware Bay: 3.8, New York Harbor: 4.1, Cape Cod: 4.1, Boston Harbor: 4.0 | Clutch size | No. eggs/nest | B | Embryo | See citation | Various location in Atlantic North East | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2008: 2.86, 2009: 3.00, mean: 2.94 | Eggs/nest | Embryo | 2008: 22, 2009: 29 nests, mean: 25.5 | NE South Dakota | Exposure Factor Datasets | USA | 2008: 0.15, 2009: 0.11, mean: 0.09 |
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | Eggs/nest | B | Embryo | 1992: 22, 1993: 48 nests | Marsh islands near Chincoteague | Exposure Factor Datasets | USA |
Vesper Bat (Myotis yumanensis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1 | Young per year | No. young | B | Neonate | Exposure Factor Datasets |
Pacific Green Turtle (Chelonia mydas)
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 76.9 | Eggs/clutch | Embryo | Playa Cabuyal, NW Costa Rica | Exposure Factor Datasets | COSTA RICA | 18.2 |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 60 | eggs/nest | Embryo | 48 nests | Matapalo beach, Guanacaste | Exposure Factor Datasets | COSTA RICA | 21 |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 117.7 | eggs/nest | Embryo | 1971 nests | Lamu archipelago | Exposure Factor Datasets | KENYA | 1 |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | See citation Table 1 | eggs/nest | Embryo | 8 | Sugözü Beaches | Exposure Factor Datasets | TURKEY |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 124 | eggs/nest | Embryo | 2261 clutches | Aves Island Wildlife Refuge | Exposure Factor Datasets | VENEZUELA | 25.7 |
California Black Rail (Laterallus jamaicensis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 7 | Eggs/nest | Embryo | 13 | Jena, Dixie County | Exposure Factor Datasets | USA | 0.5 |
Exposure Endpoint Type | Endpoint Value | Location | Type |
---|---|---|---|
Clutch or Litter Size | Review | Exposure Factor Datasets |
Coyote (Canis latrans)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | High diet: 6.0, low diet: 4.8 | Pups | F | Adult | 11 | National Wildlife Research Center | Exposure Factor Datasets | Breeding | USA | High diet: 0.5, low diet: 0.26 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.6 | pups | B | Pup | 55 | Central Western, Northwestern, Great Valley, and Sierra Nevada bioregion | Exposure Factor Datasets | USA | 2.2 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.2 | pups/litter | Female | Adult | 16 | Pinon Canyon Maneuver Site, Trinidad (elev., 1310-1740 m) | Exposure Factor Datasets |
Kit Fox (Vulpes macrotis)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | See citation Table 6 | Pups/litter | B | Pup | See citation | Naval Petroleum Reserve | Exposure Factor Datasets | Kern | USA |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.69 | Pups/litter | B | Pup | 32 | Upper Chuckwalla Valley | Exposure Factor Datasets | Riverside | USA | 0.3 |
Striped Skunk (Mephitis mephitis)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 7 | Offspring/litter | B | Neonate | 3 | Delta Waterfowl and Wetlands Research Station |
Exposure Factor Datasets | CANADA |
Clutch or Litter Size | 5.5 | Offspring/litter | B | Neonate | 11 | Delta Waterfowl and Wetlands Research Station |
Exposure Factor Datasets | CANADA |
Western Grebe (Aechmophorus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | See citation Table 1 | Brood size as % of n | Embryo | See citation | Clear Lake | Exposure Factor Datasets | Lake | USA |
Clutch or Litter Size | See citation Table 2 | Brood size as % of n | Embryo | See citation | Eagle Lake | Exposure Factor Datasets | Lassen | USA |
Western Meadowlark (Sturnella neglecta)
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.4 | Number of eggs | Embryo | 119 | Bowdoin National Wildlife Refuge | Exposure Factor Datasets | USA | 0.3 |
Snowy Plover (Charadrius nivosus)
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1995: 2.66, 1996: 2.83 | Eggs/nest | Embryo | 1995: 238, 1996: 177 | Alkaline flat at Salt Plains National Wildife Refuge | Exposure Factor Datasets | USA | 1995: 0.62, 1996: 0.46 |
Loggerhead Shrike (Lanius ludovicianus)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2-7 nestlings/pair | B | Nestling | 38 | Kirkfield, Ontario | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.7 | B | Embryo | 459 nesting attempts; 98 individuals | Exposure Factor Datasets | CANADA | 1.5 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 5.4 | First/second broods combined | B | Embryo | 128 | Kirkland Airfore Base | Exposure Factor Datasets | Breeding | USA | 0.2 |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1991: 4.9, 1992: 5.6 | Number of eggs/clutch | B | Embryo | 1991: 27, 1992: 50 breeding pairs | Three sites in southern Ontario | Exposure Factor Datasets | Breeding | CANADA | 1991: 0.1, 1992: 0.2 |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | Roadside nests: 5.2, interior nests: 6.1 | B | Embryo | Exposure Factor Datasets | USA | Roadside nests: 1.3, interior nests: 0.5 | ||
Clutch or Litter Size | Review | B | 13-222 | Exposure Factor Datasets | USA |
Northern Flicker (Colaptes auratus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 7.61 | Eggs/clutch | B | Embryo | 139 nests | Central British Columbia (51⁰52'N, 122⁰21'W) | Exposure Factor Datasets | CANADA | 1.52 |
Peregrine Falcon (Falco peregrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | See citation Table 1 | Chicks/breeding pair | Average number chicks/year | NR | Chick | 820 nests | Exposure Factor Datasets | SPAIN |
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3-Feb | Number of eggs | Embryo | 2 nests | Tsimanampetsotsa | Exposure Factor Datasets | MADAGASCAR |
Least Tern (Sterna antillarum)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.25 | Mean clutch size | Eggs | Embryo | 20 nests | Priarie Dog Town Fork of the Red River in Childress County | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1995: 2.7, 1996: 2.3, 1997: 2.0 | Clutch size | Mean number of eggs/nest | Embryo | 1995: 550, 1996: 265, 1997: 172 | Cow Island, lower Mississippi River | Exposure Factor Datasets | USA |
Clutch or Litter Size | 1995: 2.6, 1996: 2.3, 1997: 1.9 | Clutch size | Mean number of eggs/nest | Embryo | 1995: 201, 1996: 392, 1997:361 | Porter Lake, lower Mississippi River | Exposure Factor Datasets | USA |
Clutch or Litter Size | 1995: 2.4, 1996: 2.6, 1997: 1.9 | Clutch size | Mean number of eggs/nest | Embryo | 1995: 245, 1996: 183, 1997: 374 | St. Francis, lower Mississippi River | Exposure Factor Datasets | USA |
Clutch or Litter Size | 1995: 2.4, 1996: 2.5, 1997: 2.1 | Clutch size | Mean number of eggs/nest | Embryo | 1995: 219, 1996: 159, 1997: 346 | Kangaroo Pt., lower Mississippi River | Exposure Factor Datasets | USA |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2008: 1.79 ± 0.03, 2009: 1.96 ± 0.02 | Brood size | Number of hatchlings | NR | Hatchling | 2008: 493 nests, 2009: 559 nests | Northeast SD | Exposure Factor Datasets | USA |
Burrowing Owl (Athene cunicularia)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 7.4 | Number of eggs | eggs | Embryo | 92 | Southern portion of the Sonny Bono Salton Sea National Wildlife Refuge | Exposure Factor Datasets | Imperial | Breeding | USA | 1.9 |
Sideblotched Lizard (Uta stansburiana)
Exposure Endpoint Type | Endpoint Value | Sex | Location | Type | Countries |
---|---|---|---|---|---|
Clutch or Litter Size | Review, see Table 4 | B | Exposure Factor Datasets | MEXICO |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.50 | mean clutch size | eggs/clutch | Female | Adult | 162 | San Gabriel Mountains | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | range of average clutch sizes on 8 dates | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets | <12 mo |
American Kestrel (Falco sparverius)
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.3 | eggs | Embryo | 6 nests | Parque Luro Reserve | Exposure Factor Datasets | ARGENTINA | 0.3 |
Desert Tortoise (Gopherus agassizi)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.6 | Mean clutch size | Number of eggs | 5 | Sugarloaf Mountain, AZ | Exposure Factor Datasets | USA | 1.5 |
Clutch or Litter Size | 5.7 | Mean clutch size | Number of eggs | 7 | Sugarloaf Mountain, AZ | Exposure Factor Datasets | USA | 2.43 |
Clutch or Litter Size | 3.8 | Mean clutch size | Number of eggs | 4 | Sugarloaf Mountain, AZ | Exposure Factor Datasets | USA | 1.26 |
Clutch or Litter Size | 5.7 | Mean clutch size | Number of eggs | 12 | Sugarloaf Mountain, AZ | Exposure Factor Datasets | USA | 1.49 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Sample Size | Location | Type | California Counties | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.3 | Clutch size | Number of eggs | Embryo | 19 | Ivanpah Valley | Exposure Factor Datasets | San Bernardino | USA | 0.2 |
Clutch or Litter Size | 3.4 | Clutch size | Number of eggs | Embryo | 15 | Ivanpah Valley | Exposure Factor Datasets | San Bernardino | USA | 0.2 |
Bell's Vireo (Vireo bellii)
Exposure Endpoint Type | Endpoint Value | Units | Life Cycle Stage | Location | Type | Error |
---|---|---|---|---|---|---|
Clutch or Litter Size | 6.49 | Eggs per female | Adult | Exposure Factor Datasets | 0.58 | |
Clutch or Litter Size | 4.88 | Eggs per female | Adult | Exposure Factor Datasets | 0.3 |
Broad-footed Mole (Scapanus latimanus)
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Type |
---|---|---|---|---|---|
Clutch or Litter Size | Review | B | Adult | Exposure Factor Datasets |
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|
Clutch or Litter Size | eggs | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.37 | mean clutch size | eggs | Female | Adult | 40 nests | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
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 | 5.06 | potential litter size estimated using the larger of corpora lutea count or embryo sites | #/litter | Female | Adult | 72 | White Mountain (elev., 9,800 ft) | Exposure Factor Datasets | Mono | 0.16 SE |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.0 | mean number of chicks per nest | chicks/nest | Both Male and Female | Adult | 7 pairs | Shoreline Park | Exposure Factor Datasets | Santa Clara |
Western Toad (Anaxyrus boreas formerly Bufo boreas)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 12,000 | # eggs/spawn | Female | Adult | Not Reported | Lost Lake, Linn county | 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 |
California Ground Squirrel (Spermophilus beecheyi)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 7.9 | young/litter | Female | Adult | 47 | University of California, Santa Cruz Campus ( elev., 120 m) [lat., 37^0W; long., 122^oW] | Exposure Factor Datasets | Santa Cruz | multiparous | 0.3 SE |
Eastern Long-toed Salamander (Ambystoma macrodactylum ssp. columbianum)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 90.1 | eggs/female | Female | Adult | 7 | Wallowa County (elev., 2470m) | Exposure Factor Datasets | 48.87 SD |
California Vole (Microtus californicus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.3 | mean; dry season | pups/litter | Female | Adult | 6 | Russell Reservation | Exposure Factor Datasets | Contra Costa | 1.1 (95%CI) |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4.2 | pups/litter | Female | Adult | 12 | Volta | Exposure Factor Datasets | Merced |
Long-tailed Weasel (Mustela frenata)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4 | young/litter | Female | Adult | 1 | captured at Tahoe City, California | Exposure Factor Datasets | Laboratory |
Willow Flycatcher (Empidonax traillii)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 4 | first clutch size in 13/14 females observed | eggs/nest | Female | Adult | 14 females | Badenoch Swamp, 14 km SE of Guelph (69 deg, 32'N, 80 deg, 13' W) | Exposure Factor Datasets | CANADA |
Great Horned Owl (Bubo virginianus)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.2 | eggs/clutch | Female | Adult | 6 nests | south-central Montana | Exposure Factor Datasets | 0.2 SE |
Salt-marsh Harvest Mouse (Reithrodontomys raviventris)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.72 | young/litter | Female | Adult | Not Reported | San Francisco Bay marshes | Exposure Factor Datasets |
San Pablo Song Sparrow (Melospiza melodia ssp. samuelis)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.28 | eggs/nest | Both Male and Female | Adult | 90 records | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. artemisiae)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.2 | based on embryo counts | #/litter | Female | Adult | 9 | Grand Teton National Park | Exposure Factor Datasets |