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Exposure Endpoint Type | Endpoint Value | Error | Units | Life Cycle Stage | Type |
---|---|---|---|---|---|
Clutches or Litters per year | 2.29 | 0.37 | Clutches per female | Adult | Exposure Factor Datasets |
Clutches or Litters per year | 7.07 | 1.17 | Eggs per female | Adult | Exposure Factor Datasets |
Population Density | 1 | Number of territorial males per 10 ha | Adult | Exposure Factor Datasets | |
Clutches or Litters per year | 2.02 | 0.17 | Clutches per female | Adult | Exposure Factor Datasets |
Clutch or Litter Size | 6.49 | 0.58 | Eggs per female | Adult | Exposure Factor Datasets |
Population Density | 1.06 | Number of territorial males per 10 ha | Adult | Exposure Factor Datasets | |
Clutches or Litters per year | 1.47 | 0.1 | Clutches per female | Adult | Exposure Factor Datasets |
Clutch or Litter Size | 4.88 | 0.3 | Eggs per female | Adult | Exposure Factor Datasets |
Population Density | 1.19 | Number of territorial males per 10 ha | Adult | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Life Cycle Stage | Location | Type |
---|---|---|---|---|
Home Range | See citation text | Both Adults and Juveniles | San Joaquin River National Wildlife Refuge | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Population Density | 0.01 | 0.01 | NR | Not Reported | Missouri River between Pierre and Mobridge, SD | NR | Exposure Factor Datasets |
Population Density | 0.02 | 0.02 | NR | Not Reported | Missouri River between Pierre and Mobridge, SD | NR | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Territory Size | nesting territory size | 0.2-1.6 | ha | Both Male and Female | Adult | Gibraltar Reservoir | 43-48 pairs (2 yrs) | Exposure Factor Datasets | |
Population Density | range of nesting density over two years | 43-48 | pairs/243 ha | Both Male and Female | Adult | Gibraltar Reservoir | 43-48 pairs (2 yrs) | Exposure Factor Datasets | |
Fledging or Weaning Rate | percent of nesting pairs that successfully raised at least one young (range over two years) | 26-32 | % | Both Male and Female | Adult | Gibraltar Reservoir | 43-48 pairs (2 yrs) | Exposure Factor Datasets | |
Hatching Success | range in proportions of total eggs hatching vs. total eggs laid (for two years) | 147/238 to 147/262 | eggs hatched/eggs produced | Not Reported | Hatchling | Gibraltar Reservoir | 238-262 eggs (two yrs) | Exposure Factor Datasets | |
Fledging or Weaning Rate | range in proportions of total chicks fledging vs. total chicks hatched (for two years) | 85/147 - 91/147 | chicks fledged/chicks hatched | Not Reported | Fledgling | Gibraltar Reservoir | 147 eggs hatched (2 yrs) | Exposure Factor Datasets | |
Clutches or Litters per year | annual clutch numbers per pair observed over 2 years | 1-2 | clutches/yr | Both Male and Female | Adult | Gibraltar Reservoir | 43-48 pairs (2 yrs) | Exposure Factor Datasets | |
Foraging Distance | up to several hundred yards | maximum observed distance travelled by birds from the nest | Both Male and Female | Adult | Gibraltar Reservoir | 32 pairs (1 yr) | Exposure Factor Datasets | ||
Time of Migration or Dispersal | mid Jul to early Sep | period of departure from the breeding area by migrants | Both Male and Female | Both Adults and Juveniles | Gibraltar Reservoir | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Fledging or Weaning Rate | 63 | percent of birds that successfully fledged one young | % | Male | Adult | Gibraltar Reservoir | 98 birds | Exposure Factor Datasets |
Fledging or Weaning Rate | 66 | percent of birds that successfully fledged one young | % | Female | Adult | Gibraltar Reservoir | 98 birds | Exposure Factor Datasets |
Survival/ Mortality | 48/312 | proportion of young banded as nestlings or fledglings returning to study area in subsequent yrs | birds returning/birds banded | Both Male and Female | Juvenile | Gibraltar Reservoir | 312 birds | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|
Population Density | review | historical and recent population data | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
Fledging or Weaning Rate | review | reproductive success data | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Population Density | number of singing males per linear km of suitable habitat | 3-5 | birds/km | Male | Adult | various CA locations | 8 survey sites | Exposure Factor Datasets | |
Fledging or Weaning Rate | 21 | percent of active nests that fledged at least one young | % | Both Male and Female | Adult | various CA locations | 14 nests | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Duration of Incubation or Gestation | approx. 15 | incubation period up to time of pipping | 14d, 21 hr - 15 d, 8 hr | d | Not Reported | Embryo | 8 eggs | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Hatching Success | 84 | percent of eggs hatched of total number laid | % | Not Reported | Hatchling | upper Santa Cruz River | 24 nests, 70 eggs | Exposure Factor Datasets |
Fledging or Weaning Rate | 59.9 | percent of eggs producing fledglings of total eggs laid | % | Not Reported | Hatchling | upper Santa Cruz River | 24 nests, 70 eggs | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|
Longevity | 6 -11 | age of oldest identified banded individual | yr-mo | Not Reported | Adult | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Territory Size | range in sizes of areas used by nesting pairs | 0.26-3.1 | ac | Both Male and Female | Adult | Lawrence | 9 pairs | Exposure Factor Datasets | |
Clutch or Litter Size | 3.39 | mean clutch size (over 2 years) | eggs/clutch | Female | Adult | Lawrence | 33 records | Exposure Factor Datasets | |
Duration of Incubation or Gestation | 14 | d | Not Reported | Embryo | Lawrence | Not Reported | Exposure Factor Datasets | ||
Age at Fledging, Metamorphosis, Weaning | period from hatching to leaving nest | 9-12 | d | Not Reported | Fledgling | Lawrence | 8 birds | Exposure Factor Datasets | |
Clutches or Litters per year | number of broods raised in one nesting season | 1-2 | clutches/yr | Both Male and Female | Adult | Lawrence | 9 pairs | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Territory Size | nesting territory size | 2-3 | ac | Both Male and Female | Adult | Bloomington | 5 pairs | Exposure Factor Datasets | |
Time of Mating/ Laying | May 25, 26 (first clutch); June 10, 17 (second clutch) | initiation dates of first and second clutches | Both Male and Female | Adult | Bloomington | 2 nests | Exposure Factor Datasets | ||
Body Weight - Mean | 1-1.8 | g | Not Reported | Hatchling | Bloomington | 3 birds | Exposure Factor Datasets | ||
Duration of Incubation or Gestation | 13 d, 16 hr - 14 d, 2 hr | Not Reported | Embryo | Bloomington | 3 eggs | Exposure Factor Datasets |