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Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Hatching Success | 5.27 | average number of nestlings from clutches laid early in the breeding season (1990-1992, 1994) | nestlings/clutch | Not Reported | Nestling | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 11 clutches | Exposure Factor Datasets |
Hatching Success | 3.25 | average number of nestlings from clutches laid late in the breeding season (1990-1992, 1994) | nestlings/clutch | Not Reported | Nestling | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 4 clutches | Exposure Factor Datasets |
Fledging or Weaning Rate | 5.09 | average number of fledglings from clutches laid early in the breeding season (1990-1992, 1994) | fledglings/clutch | Not Reported | Fledgling | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 11 clutches | Exposure Factor Datasets |
Fledging or Weaning Rate | 2.75 | average number of fledglings from clutches laid late in the breeding season (1990-1992, 1994) | fledglings/clutch | Not Reported | Fledgling | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 4 clutches | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | range of mean clutch sizes measured among auratus ssp., cafer ssp., and auratus/cafer hybrid flickers | 6.97-7.75 | eggs/clutch | Female | Adult | Lincoln, Morrill, Scottsbluff Counties, NE; Platte County, WY | 10-32 clutches per subspecies or hybrid group | Exposure Factor Datasets |
Hatching Success | range of mean brood to clutch size ratios measured among male and female auratus ssp., cafer ssp., and auratus/cafer hybrid flickers | 0.826-0.903 | Both Male and Female | Adult | Lincoln, Morrill, Scottsbluff Counties, NE; Platte County, WY | 4-42 clutches per subspecies or hybrid group | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Population Density | 71.2 | density estimate on a grazed plot by transect counts using an exponential polynomial model | 49.6-92.8 95% CI | birds/40 ha | Not Reported | Not Reported | San Joaquin Experimental Range | 64 birds | Exposure Factor Datasets |
Population Density | 72.8 | density estimate on an ungrazed plot by point count using an exponential polynomial model | 50.1-95.5 95% CI | birds/40 ha | Not Reported | Not Reported | San Joaquin Experimental Range | 43 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Territory Size | 0.4 | average territory size based on > 400 point observations | 0.08 | 0.28-0.52 | ha | Not Reported | Adult | Jasper Ridge Biological Experimental Area, nr Portola Valley | 12 territories | Exposure Factor Datasets |
Body Weight - Mean | 5.37 | mean body weight of museum specimens | g | Not Reported | Not Reported | 23 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 2.2 | breeding density estimate | birds/36 ha | Male | Adult | Palomarin Field Station, Point Reyes Bird Observatory | 6 territories | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Foraging Distance | See figure | figure showing mapping of approximate ranges of two flocks during one season | Both Male and Female | Not Reported | University of California campus | 2 flocks | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Metabolic Rate | 3.96 | approximate basal rate of nocturnal oxygen consumption, measured at 30 deg C | cc O^2/g/h | Not Reported | Adult | captured at Occidental College, Los Angeles | 12 birds | Exposure Factor Datasets | |
Metabolic Rate | metabolic rate = 0.36(ambient T) + 14.64 | linear regression equation for relationship between nocturnal metabolism and ambient temperature | Not Reported | Adult | captured at Occidental College, Los Angeles | 12 birds | Exposure Factor Datasets | ||
Body Weight - Mean | 5.5 | mean body weight | 0.2 SE | g | Not Reported | Adult | captured at Occidental College, Los Angeles | 6 birds | Exposure Factor Datasets |
Food Ingestion Rate | 35.17 | consumption of mealworms at 20 deg C | 1.26 SE | kJ/d | Not Reported | Adult | captured at Occidental College, Los Angeles | 6 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Growth Rate | 0.092 | change in snout-vent length measured between recaptures (>1000d) | 0.0071 | mm/d | Female | Adult | Calaveras Big Trees State Park (elev., 1400m) | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.1-1.0 | birds/acre | Not Reported | Not Reported | Los Banos, Merced | 23-67 birds counted | Exposure Factor Datasets | ||
Time of Nesting | Mar-Aug | length of nesting period | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | |||
Clutches or Litters per year | 2 | usual number of nesting attempts per year | nests/yr | Female | Adult | Not Reported | Exposure Factor Datasets | ||
Clutch or Litter Size | 5 | usual number of eggs laid | eggs/clutch | Female | Adult | Not Reported | Exposure Factor Datasets | ||
Hatching Success | 3 | estimated average brood size | young/clutch | Not Reported | Juvenile | Not Reported | Exposure Factor Datasets | ||
Duration of Incubation or Gestation | observed range of incubation periods | 12-14 | d | Not Reported | Embryo | Not Reported | Exposure Factor Datasets | ||
Time of Fledging or Metamorphosis | observed number of days chicks spent in nest | 8-10 | d | Not Reported | Fledgling | Not Reported | Exposure Factor Datasets | ||
Growth Rate | 7 | average increase in body weight | g/d | Not Reported | Nestling | 2 nests | Exposure Factor Datasets | ||
Body Weight - Mean | 4.00 | body weight of average adult | oz | Not Reported | Adult | Not Reported | Exposure Factor Datasets | ||
Body Weight - Mean | 0.25 | body weight of day-old nestling | oz | Not Reported | Nestling | 2 nests | Exposure Factor Datasets | ||
Dietary Composition | grain (30.8), weed seed (5.3), miscell. vegetable (0.6), Coleoptera (21.3), Orthoptera (20.3), Lepidoptera (12.2), Hemiptera (1.7), Hymenoptera (5.6), Diptera (0.1), Arachnida (0.2), miscell. insects (1.9) | percent contribution to the diet by volume, based on stomach content analyses | % | Not Reported | Not Reported | ~2,000 stomachs | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Growth Rate | 0.250 | growth rate of body weight in parent-reared birds | Male | Nestling | 11 birds | Exposure Factor Datasets | ||
Growth Rate | 0.239 | growth rate of body weight in parent-reared birds | Female | Nestling | 8 birds | Exposure Factor Datasets | ||
Body Weight - Mean | 113.4 | average body weight | 2.0 SE | g | Male | Adult | 25 birds | Exposure Factor Datasets |
Body Weight - Mean | 120.2 | average body weight | 5.3 SE | g | Female | Adult | 26 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Food Ingestion Rate | 43.6 | average and range of daily caloric intake (food provided ad libidum) | 28.0-70.2 | cal/d | Male | Adult | 1 bird | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Time of Nesting | mid-Feb to Jun 20 | period from first territory selection to last brood fledged | Both Male and Female | Adult | south-central Montana | 15 nests | Exposure Factor Datasets | |||
Fledging or Weaning Rate | 64% | percent of nests known to fledge young | Not Reported | Fledgling | south-central Montana | 11 nests | Exposure Factor Datasets | |||
Hatching Success | 100% | percent of eggs hatched in nests that produced young | Not Reported | Nestling | south-central Montana | 11 nests | Exposure Factor Datasets | |||
Clutch or Litter Size | 2.2 | 0.2 SE | 2-3 | eggs/clutch | Female | Adult | south-central Montana | 6 nests | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|
Home Range | home range size (minimum convex polygon model) as determined by radiotelemetry | 66-400 | ha | Not Reported | Not Reported | 22 owls | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Foraging Distance | 0.25 | typical maximum distance between two roosting sites | mi | Both Male and Female | Adult | Superior and Ann Arbor townships | 11 home ranges | Exposure Factor Datasets |
Population Density | 1 | bird/2000 acres | Both Male and Female | Not Reported | Superior township | 11 owls | Exposure Factor Datasets |