Aquatic birds
Mallard duck (Anas platyrhynchos)
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
|---|---|---|---|---|---|---|---|---|---|
| DIELDRIN | increased with all doses | brain, liver, and adipose dieldrin concentrations | Both Male and Female | Juvenile | 4-6 per group | Toxicity Factor Datasets | 75 days | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | gastropoda (0.001), crustacea (0.007), insecta (0.003), and plant (0.980) | mean relative proportions (wet mass) of stomach contents | Both Male and Female | Not Reported | 22 | St. Lawrence River | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| 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 |
| Population Density | 4,667 | 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 Francisco Delta | Exposure Factor Datasets | |
| Population Density | 389 | 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 | Imperial and Coachella Valleys | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 10.4 | mean clutch size from first nesting attempt | eggs | Female | Adult | 151 | Exposure Factor Datasets | 0.2 (SE) | Laboratory | |
| Time of Nesting | April-June | date of nest initiation | Female | Adult | 151 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|
| Dietary Composition | flora (99.1%), fauna (0.92%) | Both Male and Female | Juvenile | 94 | Bear River Migratory Bird Refuge | Exposure Factor Datasets | 46-55 d |
| Dietary Composition | flora (99.9%), fauna (0.08%) | Both Male and Female | Juvenile | 94 | Bear River Migratory Bird Refuge | Exposure Factor Datasets | 52-60 d |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
|---|---|---|---|---|---|---|---|---|---|---|
| Territory Size | 70 | mean length of drainage ditch (5 ft wide) defended | yd | Male | Adult | 8 ducks | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
| Time of Hatching or Parturition | May 16-29 | peak hatching period | Both Male and Female | Hatchling | Not Reported | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding | |
| Population Density | 396 | breeding density | pairs/18000 acres | Both Male and Female | Adult | 396 pairs | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
| Time of Nesting | April-June | time from earliest clutch laid to last clutch hatched | Female | Adult | Not Reported | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 1,163 | g | Male | Juvenile | 61 | Illinois and Mississippi river valleys | Exposure Factor Datasets | hunter harvested | 12 SE |
| Body Weight - Mean | 1,078 | g | Female | Adult | 105 | Illinois and Mississippi river valleys | Exposure Factor Datasets | hunter-harvested | 11 SE |
| Body Weight - Mean | 966 | g | Female | Juvenile | 12 | Illinois and Mississippi river valleys | Exposure Factor Datasets | hunter-harvested | 37 SE |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
|---|---|---|---|---|---|---|---|---|---|
| Body Fat (total or %) | 111 | g (lipid) | Female | Both Adults and Juveniles | 9 | Mingo Basin | Exposure Factor Datasets | alternate plumage - early migrants, unpaired | 8 SE |
| Body Fat (total or %) | 145 | g (lipid) | Female | Both Adults and Juveniles | 19 | Mingo Basin | Exposure Factor Datasets | alternate plumage, paired | 7 SE |
| Body Fat (total or %) | 102 | g (lipid) | Female | Both Adults and Juveniles | 14 | Mingo Basin | Exposure Factor Datasets | alternate plumate, unpaired | 12 SE |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Home Range | 620 | ha | Male | Adult | 5 | Bemidji, Beltrami Co. | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|
| Time of Migration or Dispersal | May 5 - May 14 | Female | Not Reported | prairie pothold region of North Dakota | Exposure Factor Datasets | second year females | |||
| Time of Migration or Dispersal | April 20 - May 14 | Female | Adult | Not Reported | prairie pothole region of North Dakota | Exposure Factor Datasets | three years and older | ||
| Clutch or Litter Size | 8.49 | eggs | Female | Adult | 57 | prairie pothole region of North Dakota | Exposure Factor Datasets | second year | 1.23 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | April 4 - July (median = May) | time of clutch initiation | Female | Adult | 265 nests | eastern - south central North Dakota, near Jamestown | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 59 | Survival rates, not mortality. | % | Female | Adult | Not Reported | Lower Klamath National Wildlife Refuge, CA | Exposure Factor Datasets | 3.4 SE |
| Survival/ Mortality | 52 | Survival rates, not mortality. | % | Female | Juvenile | Not Reported | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 7.8 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | 0.5 | For explanation of classifications, see p. 11 (classifications are Kern NWR, hunting clubs, etc). | birds/ha | Female | Not Reported | Not Reported | preirrigated croplands | Exposure Factor Datasets | wintering birds |
| Population Density | 0.07 | For explanation of classifications, see p. 11 (classifications are Kern NWR, hunting clubs, etc). | birds/ha | Not Reported | Not Reported | Not Reported | evaporation ponds | Exposure Factor Datasets | wintering birds |
| Population Density | 0.5 | For explanation of classifications, see p. 11 (classifications are Kern NWR, hunting clubs, etc). | birds/ha | Not Reported | Not Reported | Not Reported | miscellaneous | Exposure Factor Datasets | wintering birds |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 0.998 | spring-summer survival (proportion) | Male | Adult | 18,650 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA |
| Survival/ Mortality | 0.603 | spring-summer survival (proportion) | Female | Adult | 16,562 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA |
| Survival/ Mortality | 0.782 | fall-winter survival (proportion) | Male | Adult | 18,650 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 467.8 | ha | Female | Adult | 6 | Missouri Couteau, south-central North Dakota | Exposure Factor Datasets | ||
| Home Range | 110.9 | Breeding home range. | ha | Female | Adult | 6 | Missouri Coteau of south-central North Dakota | Exposure Factor Datasets | Laying females |
| Exposure Endpoint Type | Endpoint Value | Location | Type |
|---|---|---|---|
| Dietary Composition | Review | Mingo Basin, Missouri | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 9.3 | eggs | Female | Adult | 18 | Adirondack Mountains | Exposure Factor Datasets | 1.3 (SD) |
| Duration of Incubation or Gestation | 28 | d | Female | Adult | 18 | Adirondack Mountains | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Growth Rate | 0.0692 | growth rate estimated from logistic growth curve | Both Male and Female | Juvenile | Not Reported | central North Dakota | Exposure Factor Datasets | 0.0030 (SE) |
| Exposure Endpoint Type | Endpoint Value | Location | Type | Condition |
|---|---|---|---|---|
| Time of Mating/ Laying | April 10 (end) | southern part of U.S. breeding range | Exposure Factor Datasets | laying |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | 1.27 | For 1989. Home range defined as area that broods restricted their activities to during rearing period. | km2 | Not Reported | Nestling | 13 broods | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 0.47 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Hatching Success | 85.2% | proportion of observed nests with at least one successful hatch | Female | Adult | 209 | Tule Lake and Lower Klamath River National Wildlife Refuges | Exposure Factor Datasets | Modoc, Siskiyou |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 0.6279 | survival estimates for birds banded 1966-1985 | Male | Adult | 18,289 | Northern California | Exposure Factor Datasets | 0.009 (SE) |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
|---|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 0.84 | mean 17-day survival rate | Not Reported | Juvenile | 223 | Northern Prairie Wildlife Research Center, Jamestown (46deg53'N, 98deg38'W) | Exposure Factor Datasets | 17 d | 0.025 SE |
Clapper Rail (Rallus longirostris)
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| DDT (4,4'-) | 1612 ppm | 5 day dietary LC50 | Male | Juvenile | 7 birds | Toxicity Factor Datasets | Laboratory |
California Clapper Rail (Rallus longirostris ssp. obsoletus)
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| CHLORDANE, DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), DIELDRIN, HEPTACHLOR, MERCURY (elemental), POLYCHLORINATED BIPHENYLS, SELENIUM (elemental) | no effect | eggshell thickness compared to those of museum eggs from 1907 and 1936 | Female | Adult | 29 eggs | North and South San Francisco Bay | Toxicity Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 7.27 | mean clutch size | Female | Adult | 26 nests | south San Francisco Bay | Exposure Factor Datasets | Alameda | 0.96 SD | |
| Duration of Incubation or Gestation | 24.2 | mean incubation period | d | Both Male and Female | Embryo | 5 nests | south San Francisco Bay | Exposure Factor Datasets | Alameda | |
| Hatching Success | 56% | proportion of nests in which at least one egg hatched | Both Male and Female | Hatchling | 50 nests | south San Francisco Bay | Exposure Factor Datasets | Alameda |
Western Grebe (Aechmophorus occidentalis)
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| DDE (4,4'-) | 12.8 ppm DDE, 0.8 ppm DDD, wet wt | mean concentration in breast muscle | Not Reported | Adult | 24 birds | Bear River Migratory Bird Refuge | Toxicity Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Ascaradina (3), Gastropoda (10, Orthoptera (2), Hemiptera (2), Diptera (1), Coleoptera (4), Siluridae (4), Centrarchidae (77), plant (4) | % of total stomach content volume | % | Not Reported | Adult | 27 birds | Clear Lake | Exposure Factor Datasets | Lake |
Brown Pelican (Pelecanus occidentalis)
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| DDE (4,4'-) | 3 ug/g | lowest level of DDE that would result in severely lowered reproductive success | Both Male and Female | Embryo | 156 eggs | Toxicity Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | age of first nesting | yr | Not Reported | Adult | 13 nests | Barataria Bay | Exposure Factor Datasets | 3 yr |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Fledging, Metamorphosis, Weaning | range of mean fledging ages over four years | days | Not Reported | Fledgling | 7-12 birds/year | Tarpon Key | Exposure Factor Datasets |
| Body Weight - Mean | body weight at hatching | g | Not Reported | Nestling | 47 birds | Tarpon Key | Exposure Factor Datasets |
Double-crested Cormorant (Phalacrocorax auritus)
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), POLYCHLORINATED BIPHENYLS | 10.4 ppm DDE, 8 ppm est. PCBs, <0.1 ppm DDD, 0.2 ppm DDT | residues measured in live and dead eggs | Female | Adult | 11 colonies | Toxicity Factor Datasets | CANADA |
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| MERCURY (elemental), POLYCHLORINATED BIPHENYLS | 5.7 ppm wet wt PCBs | concentration in eggs | Female | Adult | 5 eggs | Lake Pointsett, Dry Lake | Toxicity Factor Datasets |
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| POLYCHLORINATED BIPHENYLS | increased compared with reference | proportion of nestlings with bill defects | Both Male and Female | Hatchling | 1,511 and 2,700 chicks (2 yrs) | Spider Is., Lake Michigan | Toxicity Factor Datasets |
| Chemical | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| PCB 126 (3,3',4,4',5-PENTACHLOROBIPHENYL) | increased @ 175, 349, 698 ug/kg egg | mortality in treated embryos versus controls | Not Reported | Embryo | 83-86 eggs/treatment | Lake Winnipegosis, Manitoba | Toxicity Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Nesting | year-round | time during which active nests were observed | Both Male and Female | Adult | 30 colonies | south FL | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Hatching Success | 76% | proportion of nests in which at least one egg hatched | Both Male and Female | Hatchling | 1056 nests | San Francisco Bay estuary | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 1.33 | kg | Not Reported | Both Adults and Juveniles | 5 cormorants | Exposure Factor Datasets | Laboratory | ||
| Metabolic Rate | 85 | measured during the day over temperature range -10 to 45 C | cm^3 O2/g BW/hr | Not Reported | Both Adults and Juveniles | 5 cormorants | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | range in mean clutches in ground nests (across 4 years) | Female | Adult | 34-127 nests/colony | Lake Ontario (43 deg 53'N, 76 deg 24'W) | Exposure Factor Datasets | spring | |
| Fledging or Weaning Rate | 2.14 | mean number of young produced/active nest (across 10 yrs) | Both Male and Female | Fledgling | Not Reported | Lake Ontario (43 deg 53'N, 76 deg 24'W) | Exposure Factor Datasets | spring |
Snowy Plover (Charadrius nivosus formerly Charadrius alexandrinus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 2.63 | clutch size | eggs/clutch | Female | Adult | 316 nests | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | |
| Fledging or Weaning Rate | 19.3% | Percent of nests in which at least one chick hatched. | % | Both Male and Female | Both Adults and Juveniles | 316 nests | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | |
| Hatching Success | 27.6% (1991), 16.1% (1992) | percent of all eggs that hatched | % | Both Male and Female | Both Adults and Juveniles, Embryo | 254 (1991), 554 (1992) eggs | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | |
| Body Weight - Mean | 6.33 | mean body weight at hatching | g | Both Male and Female | Hatchling | 47 | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN | 0.56 SD |
Killdeer (Charadrius vociferus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Physidae (0.9%), Odonata larvae (1.3%), Corixidae adult (1.3%), Coleoptera adult (25.5%), Coleoptera larvae (21.2%), Coleoptera adult pieces (17.0%), Diptera larvae (18.3%), Hymenoptera adult (6.1%), Unidentified (2.6%), plant fibers (1.3%), grit (4.5%) | volumetric aggregate percent of esophageal contents | Not Reported | Both Adults and Juveniles | 15 birds | Mingo National Wildlife Refuge | Exposure Factor Datasets | migrating |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | 7.6 (fall), 15.4 (winter), 2.2 (spring) | mean population density | birds/ha | Not Reported | Not Reported | 5 seasons censused | Bolinas Lagoon, Point Reyes National Seashore | Exposure Factor Datasets | Marin |
| Population Density | 2.2 (fall), 1.8 (winter), 1.3 (spring) | mean population density | birds/ha | Not Reported | Not Reported | 10 seasons censused | Limantour Estero | Exposure Factor Datasets | Marin |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 71.1 | body weight of an individual bird | g | Not Reported | Adult | 1 bird | Exposure Factor Datasets | Laboratory |
Least Tern (Sterna antillarum)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Hatching Success | 0.79-1.31 | mean hatching success during two years of study | eggs hatched/nest | Not Reported | Chick | 545-606 nests per study year | Sandy Point, West Haven | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Nesting | June 16, June 30, July 1 | mean nest-initiation dates over 3 years of study | Both Male and Female | Adult | 6-17 nests/study year | Yellowstone River | Exposure Factor Datasets | |
| Clutch or Litter Size | 2.1-2.7 | range of clutch means over 3 years of study | eggs/clutch | Female | Adult | 6-18 clutches/study year | Yellowstone River | Exposure Factor Datasets |
| Fledging or Weaning Rate | 0.1-1.4 | range of mean fledging success over 3 study years | fledglings/nest | Not Reported | Juvenile | 6-18 nests/study year | Yellowstone River | Exposure Factor Datasets |
California Brown Pelican (Pelecanus occidentalis ssp. californicus)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Foraging Distance | distance travelled by radiotagged bird | km/day | Not Reported | Juvenile | 1 bird | south Monterey Bay | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | 69% | estimated survival rate of radiotagged rehabilitated oiled birds at 150-180 days post-release | Not Reported | Adult | 16 | Southern California Bight | Exposure Factor Datasets | rehabilitated oiled birds |
| Survival/ Mortality | 94% | estimated survival rate of radiotagged control birds at 150-180 days post-release | Not Reported | Adult | 17 | Southern California Bight | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Time of Migration or Dispersal | early to mid-summer | time of northward movement from southern breeding areas | Both Male and Female | Both Adults and Juveniles | 3 years | northern and central coast | Exposure Factor Datasets |
Light-footed Clapper Rail (Rallus longirostris ssp. levipes), California Clapper Rail (Rallus longirostris ssp. obsoletus), Yuma Clapper Rail (Rallus longirostris ssp. yumanensis)
| Exposure Endpoint Type | Endpoint Value | Location | Type | Countries |
|---|---|---|---|---|
| Territory Size | review | Exposure Factor Datasets | USA |
Yuma Clapper Rail (Rallus longirostris ssp. yumanensis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | crayfish (94.67%), ground beetle (0.11%), unident. beetle (0.56%), weevils (2.78%), damselfly nymphs (0.11%), grasshoppers (0.11%), insect eggs (.11%), unident. parts (0.78%), spider (0.56%), seeds (0.11%), corbicula (0.06%), unident. mammal bone (0.06%) | dietary item occurence by volume in stomach contents | Not Reported | Adult | 9 stomachs | Topock Marsh to Imperial Lake | Exposure Factor Datasets | |
| Dietary Composition | isopoda (48.5%), unident. parts (1.50%), corbicula (50.00%) | dietary item occurence by volume in stomach contents | Not Reported | Adult | 2 stomachs | Gila/Colorado River confluence | Exposure Factor Datasets | |
| Dietary Composition | shrimp (0.25%), water beetle (56.50%), dragonfly nymphs (0.50%), damselfly nymphs (2.00%), leech (3.75%), unident. fish (31.75%) | dietary item occurence by volume in stomach contents | Not Reported | Adult | 4 stomachs | Colorado Delta | Exposure Factor Datasets | MEXICO |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 24 | mean home range size | ha | Not Reported | Adult | 6 birds | lower Colorado River Valley | Exposure Factor Datasets |
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 |
|---|---|---|---|---|---|---|---|---|
| Longevity | 2.7 | mean life expectancy for an adult plover, based on survival estimate | yr | Both Male and Female | Adult | 361 birds captured over 3 yrs | Great Salt Lake | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| Clutch or Litter Size | 3 | most frequent clutch size | eggs/clutch | Female | Adult | 171 nests | Pajaro River Mouth | Exposure Factor Datasets | Monterey | |
| Duration of Incubation or Gestation | 27.4 | average incubation period (measured from last egg laid to last egg hatched) | d | Both Male and Female | Embryo | 57 nests | Pajaro River Mouth | Exposure Factor Datasets | Monterey | 0.2 SE |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Foraging Distance | 272 | median foraging distance from nest | m | Male | Adult | 266 observations | Great Salt Lake, Davis County | Exposure Factor Datasets | 25%-75% quartiles=110-580 |
| Clutch or Litter Size | 3 | modal clutch size | eggs/clutch | Female | Adult | 327 clutches | Great Salt Lake, Davis County | Exposure Factor Datasets | |
| Fledging or Weaning Rate | 1.87 | average number of chicks fledged per successful brood | chicks/brood | Female | Adult | 3 yrs data collection | Great Salt Lake, Davis County | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Water Ingestion Rate | 20 | daily distilled water consumption as percent of body weight | % | Not Reported | Adult | Not Reported | Exposure Factor Datasets | Laboratory | |
| Body Weight - Mean | range in average body weights of treatment groups | g | Not Reported | Adult | 3-4 birds/group | Exposure Factor Datasets | Laboratory |
California Least Tern (Sterna antillarum ssp. browni)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Time of Migration or Dispersal | first two wks Apr | timing of dispersal from breeding areas | Both Male and Female | Both Adults and Juveniles | 1 colony | Sunset Aquatic Park, Huntington Beach | Exposure Factor Datasets | Orange | |
| Age at Fledging, Metamorphosis, Weaning | 20 | approximate age of fledging (first flight) | d | Not Reported | Fledgling | 2 birds | Sunset Aquatic Park, Huntington Beach | Exposure Factor Datasets | Orange |
| Survival/ Mortality | proportion of hatched birds that survived during post-fledging period, 2 years | % | Not Reported | Hatchling | 42-140 hatched birds/year | Sunset Aquatic Park, Huntington Beach | Exposure Factor Datasets | Orange |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Survival/ Mortality | estimated annual mortality rate for two years based on juvenile censuses | % | Not Reported | Juvenile | 92-195 birds counted | Santa Margarita River at Camp Pendleton | Exposure Factor Datasets | Orange |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | May to Aug | beginning to end of nesting period | Both Male and Female | Adult | 1 colony | Cuixmala Beach [19 deg, 22'14"N, 104 deg 59'31"W] | Exposure Factor Datasets | MEXICO | |
| Population Density | 40 | density of nests at one colony | nests/1400 m^2 | Both Male and Female | Adult | 1 colony | Cuixmala Beach [19 deg, 22'14"N, 104 deg 59'31"W] | Exposure Factor Datasets | MEXICO |