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Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
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 | Colorado Delta | 4 stomachs | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Home Range | 24 | mean home range size | ha | Not Reported | Adult | lower Colorado River Valley | 6 birds | Exposure Factor Datasets |
Home Range | 8 | mean home range size | ha | Not Reported | Adult | lower Colorado River Valley | 5 birds | Exposure Factor Datasets |
Home Range | 7 | mean home range size | ha | Not Reported | Adult | lower Colorado River Valley | 18 birds | Exposure Factor Datasets |
Home Range | 15 | mean home range size | ha | Not Reported | Adult | lower Colorado River Valley | 16 birds | Exposure Factor Datasets |
Home Range | 9 | mean home range size | ha | Not Reported | Adult | lower Colorado River Valley | 4 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Dietary Composition | Grasses (37.9%); Forbs (41.3%); Shrubs (20.8%) | % total dietary bulk (volume), estimated from stomach contents | % | Not Reported | Not Reported | Sugarloaf Mountain, Maricopa County (elev., 850m) | 97 | Exposure Factor Datasets | |
Clutch or Litter Size | 3.7 | 2 - 6 | young/litter | Female | Adult | Sugarloaf Mountain, Maricopa County (elev., 850m) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Population Density | range of mean population densities | 0.98-1.21 | birds/acre | Not Reported | Not Reported | Dumbarton Bridge Marsh | 1 marsh | Exposure Factor Datasets | |
Time of Nesting | April | beginning of nesting | Not Reported | Not Reported | Dumbarton Bridge Marsh | 1 marsh | Exposure Factor Datasets | ||
Clutch or Litter Size | 7.22 | mean clutch size | 5-9 | Not Reported | Not Reported | Dumbarton Bridge Marsh | 27 nests | Exposure Factor Datasets | |
Duration of Incubation or Gestation | estimated incubation period in field | 23-27 | d | Not Reported | Not Reported | Dumbarton Bridge Marsh | 3 nests | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | range of mean densities | 0.3-1.6 | birds/ha | Both Male and Female | Adult | San Francisco Bay | 5 sites | Exposure Factor Datasets |
Population Density | range of mean densities | 0.1-1.1 | birds/ha | Both Male and Female | Adult | San Francisco Bay | 5 sites | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Time of Torpor or Hibernation | Sept. - Mar. | Not Reported | Adult | Phoenix South Mountain, Maricopa County | Not Reported | Exposure Factor Datasets | |||
Growth Rate | 2.7 | growth rate based on changes in snout-vent length (48-73 mm) | 0.0 - 5.1 | mm/mo | Not Reported | Juvenile | Phoenix South Mountain, Maricopa County | 22 | Exposure Factor Datasets |
Population Density | 11 - 20 | #/ha | Not Reported | Juvenile | Phoenix South Mountain, Maricopa County | 11-20 | Exposure Factor Datasets | ||
Age at Sexual Maturity | 45 | minimum adult size at first reproduction, estimated from growth rate | mo | Not Reported | Adult | Phoenix South Mountain, Maricopa County | 22 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 86 | incubation period at 28C | d | Not Reported | Embryo | 12 | Exposure Factor Datasets |
Duration of Incubation or Gestation | 44 | incubation period at 36C | d | Not Reported | Embryo | 60 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|
Duration of Incubation or Gestation | review | reported gestation period was 27 d (data source unspecified) | Female | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | range of monthly means for 2 size classes measured over 3 yrs. | 2.4 - 4.5 | eggs/clutch | Female | Adult | Rock Valley, Nye County | 3 - 95 clutches/mo | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Metabolic Rate | 163 | oxygen consumption measured at 30C | 13.2 SE | mm3 O2/g/hr | Not Reported | Both Adults and Juveniles | 4 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 6.55 | mean clutch size (1 year) | 0.19 SE | 5-8 | Female | Adult | Tijuana Marsh, Upper Newport and Anaheim Bays | 33 nests | Exposure Factor Datasets |
Hatching Success | 81% | proportion of nests in which at least one egg hatched | Both Male and Female | Hatchling | Tijuana Marsh, Upper Newport and Anaheim Bays | 130 nests | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Growth Rate | range of average increase in snout-vent length for 7 size classes (snout vent length; 28.0 - 35.9 mm) | 4.20 - 10.80 | mm/yr | Not Reported | Adult | Washington County | 13 - 52 | Exposure Factor Datasets | |
Survival/ Mortality | 13.3 | % surviving their first year | % | Not Reported | Juvenile | Washington County | 15 | Exposure Factor Datasets | |
Age at Sexual Maturity | 8 | mo | Not Reported | Adult | Washington County | Not Reported | Exposure Factor Datasets | ||
Survival/ Mortality | 11 | % surviving one year | % | Not Reported | Adult | Washington County | 373 | Exposure Factor Datasets | |
Growth Rate | 2 | increase in snout-vent length | mm/wk | Not Reported | Juvenile | Washington County | 30 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | range of mean weights taken over 5 yrs at 2 sites | 13.1 - 19.6 | kg | Female | Pup | San Miguel and San Clemente Islands | 41 - 151/yr | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Pacific whiting (48.7%); market squid (46.7%); juvenile rockfish (35.9%); northern anchovy (20.0%); red octopus (9.7%); jack mackerel (4.6%); nail squid (4.6%); squid (4.1%);chub mackerel (3.6%); Pacific pompano (2.5%); California lantern fish (2.5%) | % occurrence of major prey (>1%) in scats | % | Both Male and Female | Both Adults and Juveniles | San Miguel Island | 224 scats | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 8.4 | mean size neonate ; pre El Nino 1982 | 0.146 SE | kg | Not Reported | Neonate | San Nicolas Island | 39 neonates | Exposure Factor Datasets |
Body Weight - Mean | 8.1 | mean weight; El Nino 1983 | 0.163 SE | kg | Not Reported | Neonate | San Nicolas Island | 31 neonates | Exposure Factor Datasets |
Body Weight - Mean | 8.2 | mean weight, post el Nino 1984 | 0.229 SE | kg | Not Reported | Neonate | San Nicolas Island | 16 neonates | Exposure Factor Datasets |
Body Weight - Mean | 8.6 | mean weight; 2 years post el Nino (1985) | 0.227 SE | kg | Not Reported | Neonate | San Nicolas Island | 16 neonates | Exposure Factor Datasets |
Growth Rate | 0.132 | pre-el Nino; 0-2 months | 0.007 SE | kg/d | Not Reported | Pup | San Nicolas Island | 32 | Exposure Factor Datasets |
Growth Rate | 0.101 | pups 0-2 months old; El Nino 1983; | 0.007 SE | kg/d | Not Reported | Pup | San Nicolas Island | 30 | Exposure Factor Datasets |
Growth Rate | 0.125 | post el Nino 1984 | 0.007SE | kg/d | Not Reported | Pup | San Nicolas Island | 32 | Exposure Factor Datasets |
Growth Rate | 0.130 | 2 years post el nino (1985); 0-2 months | 0.006 SE | kg/d | Not Reported | Pup | San Nicolas Island | 38 | Exposure Factor Datasets |