Aquatic birds
California Clapper Rail (Rallus longirostris ssp. obsoletus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Modiolus demissus (56.5%), Lycosidae (15%), Macoma balthica (7.6%), Hemigrapsis oregonensis (3.2%), Hyanassa obsoleta (2%), Spartina leiantha (14.55%) | Volumetric percentage of food items in stomach contents | Not Reported | Not Reported | 18 stomachs | San Francisco Bay | Exposure Factor Datasets | Santa Clara |
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 |
Western Snowy Plover (Charadrius nivosus ssp. nivosus formerly Charadrius alexandrinus ssp. nivosus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | early to late March | timing of first influx of spring migrants to interior breeding areas | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | Mar 9 (females), Mar 24 (males) | mean dates of spring migrant arrival to breeding grounds | Both Male and Female | Adult | 44 males, 59 females | Pajaro River Mouth | Exposure Factor Datasets | Monterey | |
Time of Mating/ Laying | Mar 23 to Jul 13 | period between onset and end of egg laying | Female | Adult | 6-84 clutches laid/month | Pajaro River Mouth | Exposure Factor Datasets | Monterey | |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | Apr 10-Jul 18 | egg-laying period | Female | Adult | 3 yrs data collection | Great Salt Lake, Davis County | Exposure Factor Datasets | ||
Foraging Distance | 177 | median foraging distance from nest | m | Female | Adult | 192 observations | Great Salt Lake, Davis County | Exposure Factor Datasets | 25%-75% quartiles=64-466 |
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.687 | estimated average annual adult survival probability (using Jolly-Seber model) | Both Male and Female | Adult | 361 birds captured over 3 yrs | Great Salt Lake | Exposure Factor Datasets | |
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 | 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 | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 5.93 | mean body weight of day 0 chicks | g | Not Reported | Hatchling | 77 birds | Sunset Aquatic Park, Huntington Beach | Exposure Factor Datasets | Orange | 0.09 2SE |
Body Weight - Mean | 39.62 | asymptotic body weight of juveniles at 15 days of age | g | Not Reported | Fledgling | 8 birds | Sunset Aquatic Park, Huntington Beach | Exposure Factor Datasets | Orange | 0.73 2SE |
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 |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | range of average clutch sizes over 2 years | eggs/clutch | Not Reported | Both Adults and Juveniles | 230-336 nests | Santa Margarita River at Camp Pendleton | Exposure Factor Datasets | Orange |
Hatching Success | proportion of eggs hatched of total eggs laid over 2 years | % | Not Reported | Hatchling | 419-734 eggs | Santa Margarita River at Camp Pendleton | Exposure Factor Datasets | Orange |
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 | 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 |
Western Grebe (Aechmophorus occidentalis)
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 |
Body Weight - Mean | range of mean body weights | g | Female | Both Adults and Juveniles | 22 birds | Commencement Bay | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | early July | peak of laying period | Female | Adult | 386 nests | Bear River Migratory Bird Refuge | Exposure Factor Datasets | |
Duration of Incubation or Gestation | 24 | incubation period | d | Both Male and Female | Embryo | 14 clutches | Bear River Migratory Bird Refuge | Exposure Factor Datasets |
Brown Pelican (Pelecanus occidentalis)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
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 |
Fledging or Weaning Rate | 2.3 | fledging rate among successful nests | fledglings/nest | Both Male and Female | Fledgling | 32 nests | St. Lawrence estuary | Exposure Factor Datasets | CANADA | 0.2 |
Growth Rate | 90.5 | growth rate during maximum growth phase | g/day | Both Male and Female | Nestling | 65 chicks | St. Lawrence estuary | Exposure Factor Datasets | CANADA | 1.8 SE |
Body Weight - Mean | 27.6 | hatch weight | g | Both Male and Female | Hatchling | 11 chicks | St. Lawrence estuary | Exposure Factor Datasets | CANADA | 1.2 SE |
Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries | Error |
---|---|---|---|---|---|---|---|---|---|---|
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 |
Food Ingestion Rate | 4.30 | mean frequency of daily feeding of first hatched chick of a brood | feedings/d | Not Reported | Juvenile | 64 observations | Iles de la Madeleine Archipelago, Gulf of St. Lawrence | Exposure Factor Datasets | CANADA | 1.90 SD |
Food Ingestion Rate | mean meal weight of chicks aged 5-37 days | g | Not Reported | Juvenile | 2 chicks | Iles de la Madeleine Archipelago, Gulf of St. Lawrence | Exposure Factor Datasets | CANADA | ||
Survival/ Mortality | 12/46 | number died/number hatched | Not Reported | Juvenile | 14 nests | Iles de la Madeleine Archipelago, Gulf of St. Lawrence | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | 28 | average incubation | d | Not Reported | Hatchling | 16 eggs | Utah Lake, Utah County | Exposure Factor Datasets | |
Clutches or Litters per year | clutches/yr | Female | Adult | 11 nests | Utah Lake, Utah County | Exposure Factor Datasets | |||
Clutch or Litter Size | 3.8 | eggs/nest | Female | Adult | Not Reported | Utah Lake, Utah County | Exposure Factor Datasets | ||
Body Weight - Mean | 36 | g | Not Reported | Hatchling | 16 birds | Utah Lake, Utah County | Exposure Factor Datasets | 1 d |
Mallard duck (Anas platyrhynchos)
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition | Error |
---|---|---|---|---|---|---|---|---|---|
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 |
Body Weight - Mean | 983 | g | Female | Both Adults and Juveniles | 21 | Mingo Basin | Exposure Factor Datasets | alternate plumage, unpaired | 20 SE |
Body Fat (total or %) | 219 | g (lipid) | Female | Both Adults and Juveniles | 6 | Mingo Basin | Exposure Factor Datasets | basic plumage, prespring migration departure | 13 SE |
Body Weight - Mean | 1,118 | g | Female | Both Adults and Juveniles | 44 | Mingo Basin | Exposure Factor Datasets | initiation prebasic molt | 21 SE |
Body Weight - Mean | 1,068 | g | Female | Both Adults and Juveniles | 34 | Mingo Basin | Exposure Factor Datasets | early prebasic molt | 22 SE |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Condition |
---|---|---|---|---|---|---|---|---|---|
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 |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 1.51 | fully feathered young/hen | Not Reported | Juvenile | 74 hens | prairie pothole region of North Dakota | Exposure Factor Datasets | |
Fledging or Weaning Rate | 1.45 | fully feathered young/hen | Not Reported | Juvenile | 41 hens | prairie pothole region, North Dkota | Exposure Factor Datasets | second year |
Fledging or Weaning Rate | 1.78 | fully feathered young/hen | Not Reported | Juvenile | 22 hens | prairie pothole region of North Dakota | Exposure Factor Datasets | after second year |
Fledging or Weaning Rate | 1.18 | fully feathered young/hen | Not Reported | Juvenile | 11 hens | prairie pothole region of North Dakota | Exposure Factor Datasets | after third year |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|---|
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 | |
Time of Mating/ Laying | March 25 (begin) - May 20 (end) | Not Reported | Not Reported | Exposure Factor Datasets | ||||
Time of Migration or Dispersal | late August/early September (begin), September (peak) | Not Reported | Not Reported | Exposure Factor Datasets | ||||
Dietary Composition | beechnuts, acorns, and slugs, snails, frogs or lizards (occasionally) | Not Reported | Not Reported | Central Valley | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
---|---|---|---|---|---|---|---|---|
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 |
Survival/ Mortality | 0.410 | Survival estimates determined using the Kaplan-Meier method | Not Reported | Chick | 50 | Lower Klamath National Wildlife Refuge | Exposure Factor Datasets | 10 days |
Survival/ Mortality | 0.344 | Survival estimates determined using the Kaplan-Meier method | Not Reported | Chick | 50 | 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 | 0.728 | spring-summer survival (proportion) | Female | Yearling | 1,246 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA | 0.079 (SE) |
Survival/ Mortality | 0.915 | summer to spring survival (proportion) | Female | Adult | 11,139 | Alberta, Saskatchewan, Manitoba | Exposure Factor Datasets | CANADA | 0.090 (SE) |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
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 |
Time of Hatching or Parturition | May-July | Female | Adult | Not Reported | Tule Lake and Lower Klamath River National Wildlife Refuges | Exposure Factor Datasets | Modoc, Siskiyou |
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 |
Dietary Composition | Sago pondweed (Potamogeton pectinatus); Leafy pondweed (P. foliosus); small pondweed (P. pusillus); smartweed (Polygonum amphibium); widgeon grass (Ruppia maritima); redhead grass (Potamogeton perfoliatus); muskgrass (Chara spp.); duckweeds (Lemna minor and L. trisulca); horned pondweed (Zannichellia palustris); duck potato (Sagittaria arifolia); water spikerush (Eleocharis acicularis) | Both Male and Female | Not Reported | Not Reported | lower Flathead Valley | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.3948 | survival estimates for birds banded 1972-1981 | Male | Juvenile | 1,396 | Central California | Exposure Factor Datasets | 0.0458 (SE) |
Survival/ Mortality | 0.5447 | survival estimates for birds banded 1966-1985 | Female | Adult | 13,704 | Northern California | Exposure Factor Datasets | 0.0128 (SE) |
Survival/ Mortality | 0.5462 | survival estimates for birds banded 1972-1981 | Female | Adult | 1,240 | Central California | Exposure Factor Datasets | 0.0561 (SE) |
Survival/ Mortality | 0.5626 | survival estimates for birds banded 1966-1985 | Female | Juvenile | 8,205 | Central California | Exposure Factor Datasets | 0.0445 (SE) |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.72 | ducks/acre | Both Male and Female | Both Adults and Juveniles | Not Reported | Conaway Ranch | Exposure Factor Datasets | Yolo | non-breeding |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sample Size | Location | Type |
---|---|---|---|---|---|
Time of Hatching or Parturition | June 14 | Average date of hatching for 3 years straight (1963-65) | 50 broods | Northwest Territories, Canada | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 43.35 | The value is an average calculated from average intake on eight different diets. See table 1 p. 783 for specific diet averages. | grams/duck/day | Male | Juvenile | 12 | Exposure Factor Datasets | 18 - 20 weeks | Laboratory | |
Food Ingestion Rate | 38.01 | The value is an average calculated from average intake on eight different diets. See table 1 p. 783 for specific diet averages. | grams/duck/day | Female | Juvenile | 12 | Exposure Factor Datasets | 18 -20 weeks old | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 1,239 | g | Male | Both Adults and Juveniles | 1,477 | Mississippi Alluvial Valley | Exposure Factor Datasets | 3 (SE) | |
Body Weight - Mean | 1,079 | g | Female | Both Adults and Juveniles | 641 | Mississippi Alluvial Valley | Exposure Factor Datasets | 4 (SE) | |
Dietary Composition | animal (3.0%), plant (97.0%) | percent composition of esopageal food samples | Both Male and Female | Both Adults and Juveniles | 2,118 | Mississippi Alluvial Valley | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|---|
Longevity | 23-05 | from USFWS Bird Banding Laboratory data | yr-mo | Not Reported | Adult | 522,261 band recoveries | Exposure Factor Datasets | USA |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Food Ingestion Rate | 3.9 | g protein/day | Female | Adult | 183 birds | Ted Shanks Wildlife Management Area | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 49.3 | egg weight | g | Not Reported | Embryo | 27 | central North Dakota | Exposure Factor Datasets | freshly laid egg | 3.5 SD |
Body Weight - Mean | 32.4 | g | Both Male and Female | Hatchling | 36 | central North Dakota | Exposure Factor Datasets | 1 d | 2.4 SD |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 574.7-1182.8 g/wk | range of mean food consumption over the breeding period | Both Male and Female | Adult | 90 | Exposure Factor Datasets | Laboratory |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Time of Migration or Dispersal | May 22 to July 10 | timing of departure from breeding grounds | Female | Adult | 34 | Suisun Marsh, Grizzly Island | Exposure Factor Datasets | Solano |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | Error | Lab |
---|---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 379 | g | Not Reported | Juvenile | 10 | Exposure Factor Datasets | 24 d | 7 SE | Laboratory |
Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.5 | eggs | Not Reported | Not Reported | 1934 | Suisun Marsh | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.713 | survival rate | Female | Both Adults and Juveniles | Not Reported | Chippewa National Forest | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
---|---|---|---|---|---|---|---|---|
Hatching Success | 43.9% | nest success rate (Mayfield method) among overwater nests | Female | Adult | 47 | Minnedosa, Manitoba | Exposure Factor Datasets | CANADA |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | total plant seeds (19.3%), total grain (5.7%), acorns (64.5%), total vegetation (0.9%), tubers/rhizomes (5.1%), invertebrates (4.6%) | mean aggregate % dry mass of foods collected in mallard stomachs (one season) | Male | Both Adults and Juveniles | 104 | Mingo National Wildlife Refuge | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | food consumption rate for average body weight of 1.23 kg | g/duck/d | Female | Adult | 18 | Exposure Factor Datasets | Laboratory |
Killdeer (Charadrius vociferus)
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 |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
---|---|---|---|---|---|---|---|
Dietary Composition | ad. Coleoptera (16%), larval Coleoptera (10%), other larval Diptera (58%), larval Lepidoptera (11%), miscellaneous (5%) | aggregate percentage of food items in diet, based on stomach content analysis | Not Reported | Adult | 7 birds | Texas High Plains | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 92.6 | mean daily energy expenditure during reproduction (during late incubation) | kJ/d | Male | Adult | 14 | Houghton Lake (lat. 44deg02', long. 08deg45') | Exposure Factor Datasets | 8.1 SE |
Metabolic Rate | 118.6 | mean daily energy expenditure during reproduction (during late incubation) | kJ/d | Female | Adult | 14 | Houghton Lake (lat. 44deg02', long. 08deg45') | Exposure Factor Datasets | 9.2 SE |
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 | |
Territory Size | review | Exposure Factor Datasets | USA |
Light-footed Clapper Rail (Rallus longirostris ssp. levipes)
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|---|
Home Range | 0.81 | mean home range size of radiotagged and untagged birds | ha | Both Male and Female | Adult | 9 radiotagged birds | upper Newport Bay | Exposure Factor Datasets | Orange |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
---|---|---|---|---|---|---|---|---|
Dietary Composition | crabs, California horn snails, isopods, crayfish, decapods, beetles | prey items in regurgitated pellets, in order of frequency of occurence | Not Reported | Adult | 18 pellets | upper Newport Bay | Exposure Factor Datasets | Orange |
Dietary Composition | amphipods, garden snails, crane flies, house mice, California voles | unquantified dietary items identified in regurgitated pellets | Not Reported | Adult | Not Reported | upper Newport Bay | Exposure Factor Datasets | Orange |
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 |