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| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Home Range | 2644 | estimated via minimum convex polygon method | m2 | Female | Adult | Portal | 4 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Body Weight - Mean | 36.2 | 3.7 SD | g | Male | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | 162 | Exposure Factor Datasets | |
| Time of Hatching or Parturition | Feb. - June | Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets | |||
| Duration of Incubation or Gestation | 4 | wk | Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets | ||
| Clutch or Litter Size | 2.46 | 0.72 SD | 2 - 5 | pups/itter | Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets |
| Time of Torpor or Hibernation | none | Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets | |||
| Time of Mating/ Laying | Jan. - June | Both Male and Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets | |||
| Age at Sexual Maturity | 1 | yr | Male | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Time of Torpor or Hibernation | Sept. - Mar. or Apr. | Not Reported | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets | |||
| Time of Mating/ Laying | Apr. - May | Both Male and Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets | |||
| Body Weight - Mean | 7.2 | 0.7 SD | g | Male | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | 66 | Exposure Factor Datasets | |
| Body Weight - Mean | 7.3 | 1.1 SD | g | Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | 67 | Exposure Factor Datasets | |
| Clutch or Litter Size | 4.75 | 0.77 SD | 4 - 6 | pups/litter | Female | Adult | Owens Valley, Big Pine (lat., 37^o11'N) | 16 | Exposure Factor Datasets |
| Body Weight - Mean | 0.5 | g | Not Reported | Neonate | Owens Valley, Big Pine (lat., 37^o11'N) | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Growth Rate | 0.1900 | growth constant based on logistic growth equation | Female | Nestling | Delaware County | 1 owl | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | February (peak), March (end) | egg laying dates | Female | Adult | Pima and Pinal Counties | 16 nests | Exposure Factor Datasets | ||
| Clutch or Litter Size | 2.5 | mean clutch size | 2-4 | eggs/clutch | Female | Adult | Pima and Pinal Counties | 16 nests | Exposure Factor Datasets |
| Fledging or Weaning Rate | 1.1 | rate of production of young at least 4 weeks old | young/nest | Not Reported | Nestling | Pima and Pinal Counties | 16 nests | Exposure Factor Datasets | |
| Fledging or Weaning Rate | 9/16 | fraction of nests that sucessfully raised at least one nestling to the age of 4 weeks | successful nests/total nests | Both Male and Female | Adult | Pima and Pinal Counties | 16 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 3.0 | average clutch size | 0.56 | 2-4 | eggs/clutch | Female | Adult | Hanford Site, Benton and Franklin Counties | 12 nests | Exposure Factor Datasets |
| Hatching Success | 2.67 | average number of young hatched | 1.09 | hatches/nest | Not Reported | Nestling | Hanford Site, Benton and Franklin Counties | 12 nests | Exposure Factor Datasets | |
| Fledging or Weaning Rate | 2.67 | average number of young fledged | 1.09 | fledglings/nest | Not Reported | Fledgling | Hanford Site, Benton and Franklin Counties | 12 nests | Exposure Factor Datasets | |
| Population Density | range of numbers of nesting pairs counted annually on a 1476 sq km study site | 3-5 | pairs/study site | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets | ||
| Population Density | range of numbers of individual owls counted annually on a 1476 sq km study site | 11-19 | individuals/study site | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Fledging or Weaning Rate | 4.0 | average number of young fledged | 0.41 | fledges/nest | Not Reported | Fledgling | Hanford Site, Benton and Franklin Counties | 4 nests | Exposure Factor Datasets |
| Population Density | 10 | number of nesting pairs counted annually on study site | pairs/1476 sq km | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets | |
| Population Density | 20 | number of individual kestrels counted annually on study site | individuals/1476 sq km | Both Male and Female | Adult | Hanford Site, Benton and Franklin Counties | 4 years | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Home Range | range of home range size based on telemetry location data | 48-101 | ha | Not Reported | Adult | Lakewood, Jefferson County | 4 birds, 20-99 radio fixes per bird | Exposure Factor Datasets | |
| Foraging Distance | range of distances between night roost location and the following day's locations | 0-1.4 | km | Not Reported | Adult | Lakewood, Jefferson County | 4 birds, 20-99 radio fixes per bird | Exposure Factor Datasets | |
| Body Weight - Mean | 140 | average body weight at time of capture | 131-144 | g | Not Reported | Adult | Lakewood, Jefferson County | 4 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 8 | first clutch size | eggs/clutch | Female | Adult | Asheville, Buncombe County | 1 nest | Exposure Factor Datasets |
| Duration of Incubation or Gestation | 11 | incubation period | d | Not Reported | Embryo | Asheville, Buncombe County | 1 nest | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 6.5 | average size of clutches existing in North American museum collections | 1.4 SD | 3-12 | eggs/clutch | Female | Adult | 411 clutches | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 6.18 | average size of clutches laid early in the breeding season | eggs/clutch | Female | Adult | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 17 clutches | Exposure Factor Datasets |
| Clutch or Litter Size | 4.71 | average size of clutches laid late in the breeding season (1990-92,1994) | eggs/clutch | Female | Adult | New Concord, Muskingum County (40 deg, 00'N, 81 deg, 46'W) | 7 clutches | Exposure Factor Datasets |
| 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 Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Clutch or Litter Size | 4.20 | average size of clutches existing in North American oological collections | eggs/clutch | Female | Adult | 57 clutches | Exposure Factor Datasets |
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