Aquatic birds
Brown Pelican (Pelecanus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Growth Rate | see figure | daily growth rates of wild nestlings | Not Reported | Nestling | varied | Tarpon Key | Exposure Factor Datasets | |
Food Ingestion Rate | percent of body weight consumed daily during maintenance of adult weight | Not Reported | Both Adults and Juveniles | 4 birds | Tarpon Key | Exposure Factor Datasets | ||
Body Weight - Mean | body weight of captive adult | g | Not Reported | Adult | 1 bird | Tarpon Key | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.2 | mean clutch size among successful nests | eggs | Female | Adult | 32 nests | St. Lawrence estuary | Exposure Factor Datasets | CANADA | 0.2 SE |
Hatching Success | 2.8 | proportion of eggs hatched per nest among successful nests | eggs/nest | Both Male and Female | Hatchling | 32 nests | St. Lawrence estuary | Exposure Factor Datasets | CANADA | 0.2 SE |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 74 | measured at night 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 | |
Metabolic Rate | minimal metabolic rate measured over a range of incident radiation (0-700 watts/m^2) | 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 | Countries |
---|---|---|---|---|---|---|---|---|
Dietary Composition | herring (25%), sculpin (92%), flounder (8%), anemones (8%), snails (17%), mussels (33%), amphipods (25%), isopods (17%), benthic shrimp (25%), crabs (25%), bryozoans (58%), algae (50%) | frequency of occurrence of food items in stomach contents | Not Reported | Both Adults and Juveniles | 12 stomachs | Quoddy Region, New Brunswick | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Growth Rate | 0.208 | K; index of rate at which asymptotic weight is being gained | Not Reported | Nestling | 1-52/sample day | Duck Island, Isle of Shoals | Exposure Factor Datasets | |
Body Weight - Mean | 1900 | asymptotic weight of nestlings | g | Not Reported | Nestling | Not Reported | Duck Island, Isle of Shoals | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
Growth Rate | 0.120 | rate of growth from hatch to fledge | Not Reported | Juvenile | 33 chicks | Iles de la Madeleine Archipelago, Gulf of St. Lawrence | Exposure Factor Datasets | CANADA | 0.017 SD | |
Body Weight - Mean | 34.7 | g | Not Reported | Hatchling | 33 chicks | Iles de la Madeleine Archipelago, Gulf of St. Lawrence | Exposure Factor Datasets | CANADA | 2.96 SD | |
Body Weight - Mean | 1900.5 | mean asymptotic weight of fledglings | g | Not Reported | Fledgling | 33 chicks | Iles de la Madeleine Archipelago, Gulf of St. Lawrence | Exposure Factor Datasets | CANADA | 189.8 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | sculpin, rock gunnel, blueback herring, alewife, wrymouth, sand shrimp, cunner, American eel, rock crab, N. Caridean shrimp, sand shrimp, white perch, yellow perch, rainbow smelt, N. lobster, Atlantic tomcod | primary dietary items from nestling regurgitant samples | Not Reported | Nestling | 673 samples | Penobscot Bay | Exposure Factor Datasets |
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|
Body Fat (total or %) | 168 | g (lipid) | Female | Both Adults and Juveniles | 32 | Mingo Basin | Exposure Factor Datasets | initiation prebasic molt | 8 SE |
Body Weight - Mean | 1,137 | g | Female | Both Adults and Juveniles | 12 | Mingo Basin | Exposure Factor Datasets | alternate plumage - early migrants, unpaired | 30 SE |
Body Fat (total or %) | 141 | g (lipid) | Female | Both Adults and Juveniles | 24 | Mingo Basin | Exposure Factor Datasets | early prebasic moltf | 13 SE |
Body Weight - Mean | 1,083 | g | Female | Both Adults and Juveniles | 9 | Mingo Basin | Exposure Factor Datasets | alternate plumage, early migrants, unpaired | 37 SE |
Body Fat (total or %) | 110 | g (lipid) | Female | Both Adults and Juveniles | 26 | Mingo Basin | Exposure Factor Datasets | middle prebasic molt | 11 SE |
Body Weight - Mean | 1,085 | g | Female | Both Adults and Juveniles | 29 | Mingo Basin | Exposure Factor Datasets | alternate plumage, paired | 18 SE |
Body Fat (total or %) | 188 | g (lipid) | Female | Both Adults and Juveniles | 23 | Mingo Basin | Exposure Factor Datasets | late prebasic molt | 13 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
Home Range | 210 | Study area was 67% upland forest, 33% lakes and wetlands. | ha | Female | Adult | 12 | western edge of Chippewa National Forest, Beltrami Co. | Exposure Factor Datasets | breeding |
Home Range | 240 | Study area was 67% upland forest, 33% lakes and wetlands. | ha | Male | Adult | 12 | western edge of Chippewa National Forest, Beltrami Co. | Exposure Factor Datasets | breeding |
Home Range | 135 | Study area was 67% upland forest, 33% lakes and wetlands. | ha | Female | Adult | 8 | western edge of Chippewa National Forest, Beltrami County | Exposure Factor Datasets | during the pre-nest interval |
Home Range | 70 | Study area was 67% upland forest, 33% lakes and wetlands. | ha | Female | Adult | 8 | western edge of Chippewa National Forest, Beltrami Co. | Exposure Factor Datasets | during the laying period |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Condition | Error |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.96 | eggs | Adult | 78 | prairie pothole region of North Dakota | Exposure Factor Datasets | after second year | 1.38 SE | ||
Population Density | 3.62 | breeding pairs/km2 | Both Male and Female | Adult | Not Reported | Koenig study area | Exposure Factor Datasets | during breeding season | ||
Population Density | 4.72 | breeding pairs/km2 | Both Male and Female | Adult | Not Reported | Woodworth study area | Exposure Factor Datasets | during breeding season | ||
Fledging or Weaning Rate | 1.51 | fully feathered young/hen | Not Reported | Juvenile | 74 hens | prairie pothole region of North Dakota | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | late February/early March (begin) to mid April (end) | southern part of U.S. breeding range | Exposure Factor Datasets | |||||
Survival/ Mortality | 61 | These are average survival rates. For breakdown by region, see table 16, p. 27. | % | Male | Adult | not reported | Exposure Factor Datasets | |
Time of Migration or Dispersal | mid-October (begin) to December (end) | southern part of U.S. breeding range | Exposure Factor Datasets | |||||
Survival/ Mortality | 56 | These are average survival rates. For breakdown by region, see table 16, p. 27. | % | Female | Adult | not reported | Exposure Factor Datasets | |
Clutch or Litter Size | eggs | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | |||
Survival/ Mortality | 47 | These are average survival rates. For breakdown by region, see table 16, p. 27. | % | Male | Juvenile | not reported | Exposure Factor Datasets | |
Clutches or Litters per year | 1 | Not Reported | Not Reported | Exposure Factor Datasets | ||||
Survival/ Mortality | 46 | These are average survival rates. For breakdown by region, see table 16, p. 27. | % | Female | Juvenile | not reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Home Range | 0.62 | For 1990. Home range defined as area that broods restricted their activities to during rearing period. | km2 | Not Reported | Nestling | 14 broods | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 0.21 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.782 | fall-winter survival (proportion) | Male | Adult | 18,650 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA |
Survival/ Mortality | 0.961 | fall-winter survival (proportion) | Female | Adult | 16,562 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | 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 | |
Time of Nesting | April-September | period between first observed nest to last observed hatches | Female | Adult | 209 | Tule Lake and Lower Klamath River National Wildlife Refuges | Exposure Factor Datasets | Modoc, Siskiyou | |
Clutch or Litter Size | 8.9 | mean clutch size of successful nests | eggs | Female | Adult | 178 | Tule Lake and Lower Klamath River National Wildlife Refuges | Exposure Factor Datasets | Modoc, Siskiyou |
Hatching Success | 91.4% | Mean hatch success of successful nests | Female | Adult | 178 | Tule Lake and Lower Klamath River National Wildlife Refuges | Exposure Factor Datasets | Modoc, Siskiyou |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 28 | d | Female | Adult | 18 | Adirondack Mountains | Exposure Factor Datasets | |
Hatching Success | 67% | proportion of tagged females that hatched clutches | Female | Adult | 18 | Adirondack Mountains | Exposure Factor Datasets | |
Survival/ Mortality | 88% | survival of tagged females over the breeding period | Female | Adult | 22 | Adirondack Mountains | Exposure Factor Datasets |
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) |
Survival/ Mortality | 0.5664 | survival estimates for birds banded 1972-1981 | Male | Adult | 776 | Central California | Exposure Factor Datasets | 0.0263 (SE) |
Survival/ Mortality | 0.5390 | survival estimates for birds banded 1966-1985 | Male | Juvenile | 11,372 | Northern California | Exposure Factor Datasets | 0.0228 (SE) |
Survival/ Mortality | 0.3948 | survival estimates for birds banded 1972-1981 | Male | Juvenile | 1,396 | Central California | Exposure Factor Datasets | 0.0458 (SE) |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|---|
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 | |
Hatching Success | 52 | proportion of nests that hatched at least one egg | % | Female | Adult | 60 nests | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
Clutch or Litter Size | 8.37 | mean clutch size | eggs | Female | Adult | 40 nests | Conaway Ranch | Exposure Factor Datasets | Yolo | breeding |
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 | 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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.181 | Survival estimates determined using the Kaplan-Meier method | Not Reported | Chick | 36 | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 10 days |
Survival/ Mortality | 0.366 | Survival estimates determined using the Kaplan-Meier method | Not Reported | Chick | 41 | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 10 days |
Survival/ Mortality | 0.366 | Survival estimates determined using the Kaplan-Meier method | Not Reported | Chick | 41 | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 50 days |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.574 | spring-summer survival (proportion) | Female | Adult | 11,139 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA | 0.053 SE |
Survival/ Mortality | 0.728 | spring-summer survival (proportion) | Female | Yearling | 1,246 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA | 0.079 (SE) |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 28 | d | Both Male and Female | Embryo | Not Reported | lower Flathead Valley | Exposure Factor Datasets |
Snowy Plover (Charadrius nivosus formerly Charadrius alexandrinus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 2.69 (1991), 2.54 (1992) | mean numbers of chicks hatched per successful nest | chicks/nest | Both Male and Female | Hatchling | 26 (1991), 35 (1992) nests | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN |
Growth Rate | 0.105 | growth rate | g/day per g body mass | Both Male and Female | Juvenile | 42 | Fuente de Piedra lake, s. Spain | Exposure Factor Datasets | SPAIN |
Killdeer (Charadrius vociferus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 3.26 (24) | mean density of breeding birds (maximum density in parentheses) | pairs/square mile | Both Male and Female | Adult | 130 sample units (160 acres/unit) | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Longevity | 10-11 | from USFWS Bird Banding Laboratory data | yr-mo | Not Reported | Adult | 86 band recoveries | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 1(+/-2) to 5 (+/-6) | mean nest densities in untilled corn or soybean fields | nests/100 ha | Both Male and Female | Adult | 8-9 fields | Adair County | Exposure Factor Datasets |
California Brown Pelican (Pelecanus occidentalis ssp. californicus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.23 | mean density at sea off central and northern coast | birds/km^2 | Both Male and Female | Both Adults and Juveniles | 3 years | central and northern coast | Exposure Factor Datasets | 0.23 SE |
California Clapper Rail (Rallus longirostris ssp. obsoletus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | late March | beginning of lay | Both Male and Female | Hatchling | Not Reported | south San Francisco Bay | Exposure Factor Datasets | Alameda | |
Population Density | 1.47 | mean breeding density based on rope drag and call count data | birds/ha | Both Male and Female | Adult | 68 ha | south San Francisco Bay-Dumbarton Point | Exposure Factor Datasets | Alameda |
Population Density | 0.89 | mean breeding density based on rope drag and call count data | birds/ha | Both Male and Female | Adult | 117 ha | south San Francisco Bay - Mowry Slough | Exposure Factor Datasets | Alameda |
Population Density | 0.69 | mean breeding density based on rope drag and call count data | birds/ha | Both Male and Female | Adult | 55 ha | south San Francisco Bay - Ideal Marsh | Exposure Factor Datasets | Alameda |
Yuma Clapper Rail (Rallus longirostris ssp. yumanensis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Home Range | 8 | mean home range size | ha | Not Reported | Adult | 5 birds | lower Colorado River Valley | Exposure Factor Datasets |
Home Range | 7 | mean home range size | ha | Not Reported | Adult | 18 birds | lower Colorado River Valley | Exposure Factor Datasets |
Home Range | 15 | mean home range size | ha | Not Reported | Adult | 16 birds | lower Colorado River Valley | Exposure Factor Datasets |
Home Range | 9 | mean home range size | ha | Not Reported | Adult | 4 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 | California Counties |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 2.0 | number of young fledged per successful brood | fledglings/brood | Not Reported | Fledgling | 35 nests | Point Reyes | Exposure Factor Datasets | Marin |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 92.7 | percent of 16 day old chicks that fledged | % | Not Reported | Juvenile | 124 birds | Pajaro River Mouth | Exposure Factor Datasets | Monterey |
Hatching Success | 58.2 | percent of clutches in which at least one egg hatched (over six years) | % | Not Reported | Hatchling | 189 nests | Pajaro River Mouth | Exposure Factor Datasets | Monterey |
Hatching Success | 55.2 | percent of all eggs that hatched (over 6 years) | % | Not Reported | Hatchling | 534 eggs | Pajaro River Mouth | Exposure Factor Datasets | Monterey |
Fledging or Weaning Rate | percent of hatched chicks that fledged (over 6 years) | d | Not Reported | Fledgling | 296 chicks | Pajaro River Mouth | Exposure Factor Datasets | Monterey |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | April, May | months of peak nest initiation activity, 2 years | Both Male and Female | Adult | 2-15 nests/colony/year | coast | Exposure Factor Datasets | |
Hatching Success | 13 | proportion of nests with at least one egg hatching | % | Not Reported | Hatchling | 72 nests | coast | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | April 18 to July 6 | period between beginning of egg laying and observation of first fledgling for one year | Both Male and Female | Adult | Not Reported | Mono Lake (elev. 1,940 m) | Exposure Factor Datasets | Mono | |
Duration of Incubation or Gestation | 26.9 | incubation period | d | Both Male and Female | Embryo | 9 nests | Mono Lake (elev. 1,940 m) | Exposure Factor Datasets | Mono |
Time of Mating/ Laying | April 18 to July 15 | period of time from beginning to end of egg laying for one year | Female | Adult | 9 nests | Mono Lake (elev. 1,940 m) | Exposure Factor Datasets | Mono |
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 |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 0.50 (first wave), 0.58 (second wave) | mean number of fledglings produced per nesting pair | fledglings/pair | Not Reported | Fledgling | 10 nests (first wave), 33 nests (second wave) | NASA Island, Seal Beach National Wildlife Refuge | Exposure Factor Datasets | Orange |
Hatching Success | 100% (first wave), 82% (second wave) | proportions of eggs hatched of eggs laid | Not Reported | Hatchling | 54 eggs (second wave) | NASA Island, Seal Beach National Wildlife Refuge | Exposure Factor Datasets | Orange | |
Clutch or Litter Size | 2.33 (first wave), 1.70 (second wave) | average clutch sizes for early and late nesters | eggs/clutch | Female | Adult | 10 nests (first wave), 33 nests (second wave) | NASA Island, Seal Beach National Wildlife Refuge | Exposure Factor Datasets | Orange |
Age at Sexual Maturity | 2 | age of birds nesting for the first time | yr | Both Male and Female | Adult | 10 pairs | 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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | average number of fledglings produced per pair, over 13 years | fledglings/pair | Not Reported | Fledgling | 35-165 pairs/year | Venice (beach) | Exposure Factor Datasets | Los Angeles | |
Fledging or Weaning Rate | average number of fledglings produced per pair, over 13 years | fledglings/pair | Not Reported | Fledgling | 775-1,264 pairs/year | statewide | Exposure Factor Datasets | ||
Age at Sexual Maturity | 2 | earliest age at which adults were known to breed for the first time | yr | Not Reported | Adult | 186 birds | Venice (beach) | Exposure Factor Datasets | Los Angeles |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | range of fledging rates, 2 years | fledglings/nests | Not Reported | Fledgling | 16-58 nests/year | Cuixmala Beach [19 deg, 22'14"N, 104 deg 59'31"W] | Exposure Factor Datasets | MEXICO |
Hatching Success | range of egg hatching rates, 2 years | % | Not Reported | Hatchling | 16-58 nests/year | Cuixmala Beach [19 deg, 22'14"N, 104 deg 59'31"W] | Exposure Factor Datasets | MEXICO |
Western Grebe (Aechmophorus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|---|
Growth Rate | -0.1321 | growth rate coefficient estimate based on Richard's growth model | Both Male and Female | Juvenile | 4 birds | Bear River Migratory Bird Refuge (collection site) | Exposure Factor Datasets | Laboratory | |
Body Weight - Mean | estimated initial weights | g | Both Male and Female | Juvenile | 4 birds | Bear River Migratory Bird Refuge (collection site) | Exposure Factor Datasets | Laboratory | |
Body Weight - Mean | estimates of asymptotic weights | g | Both Male and Female | Juvenile | 4 birds | Bear River Migratory Bird Refuge (collection site) | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | range of mean body weights | g | Male | Both Adults and Juveniles | 18 birds | Commencement Bay | Exposure Factor Datasets |