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Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 2584 | 20.9 SE | g | Male | Adult | Delta Marsh Mannitoba | 5 | Exposure Factor Datasets | |
Body Fat (total or %) | 31.9 | 1.3 SE | % | Male | Adult | Delta Marsh Mannitoba | 5 | Exposure Factor Datasets | |
Body Fat (total or %) | 10.1 | 2.1 SE | % | Male | Adult | Delta Marsh Mannitoba | 5 | Exposure Factor Datasets | |
Metabolic Rate | 142 | calculated basal metabolic rate | 5 SE | kcal/d | Male | Adult | Delta Marsh Mannitoba | 5 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 24.5; 15.4; 5.4 | depending on habitat type | nesting pairs/ha | Both Male and Female | Adult | Petaluma marsh | 4 (nesting pair density) | Exposure Factor Datasets |
Territory Size | 387; 498; 644 | depending upon habitat type | m2 | Both Male and Female | Adult | Petaluma marsh | 8-11 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 16.6-32.4 (salt marsh), 10.6-13.1 (altered salt marsh), 16.6-24.7 (brackish marsh), 9.1-17.5 (altered brackish marsh) | breeding population densities | pairs/ha | Both Male and Female | Adult | Suisun Bay; San Francisco Bay; San Pablo Bay | 26 sample areas | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Territory Size | 0.21;0.26 | rural; suburban | ha | Both Male and Female | Adult | Amherst MA, 42 deg.22' N., 72 deg. 30' W | 10 territories | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|
Time of Molt | June-September | Both Male and Female | Adult | Mandarte Island | 69 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Clutch or Litter Size | 3.58; 3.42 | 0.1; 0.19 | Both Male and Female | Adult | Mandarte Island | 140; 89 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|
Body Weight - Mean | see table 1 | Not Reported | Nestling | San Miguel Island | 6-33 nestlings | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | April-October | period from onset of egg laying through fledging | Both Male and Female | Adult | Madelia Research Center, Watonwan County | ~81 nests/year | Exposure Factor Datasets | ||
Population Density | range of total annual nesting population, over 3 yrs | 65-100 | pairs | Both Male and Female | Adult | Madelia Research Center, Watonwan County | 65-100 pairs | Exposure Factor Datasets | |
Fledging or Weaning Rate | number of young fledged per nesting attempt | 1.09-1.21 | fledglings/nest | Both Male and Female | Fledgling | Madelia Research Center, Watonwan County | ~81 nests/year | Exposure Factor Datasets | |
Survival/ Mortality | 37.3% (before hatch), 9.2% (after hatch) | percent of eggs or young lost before and after hatch | Both Male and Female | Embryo, Juvenile | Madelia Research Center, Watonwan County | 634 eggs | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Time of Nesting | March-September | period of active nesting | Both Male and Female | Adult | Texas A&M College campus | 648 nests | Exposure Factor Datasets | ||
Population Density | 165 | peak monthly nesting density in study area | nests/81 acres | Both Male and Female | Adult | Texas A&M College campus | 648 nests | Exposure Factor Datasets | |
Clutches or Litters per year | 4.4 | mean number of nest attempts made per pair per year | 3-6 | nests/yr | Both Male and Female | Adult | Texas A&M College campus | 7 marked pairs | Exposure Factor Datasets |
Fledging or Weaning Rate | 6.7 | mean number of fledglings produced per adult female | fledglings/female | Both Male and Female | Fledgling | Texas A&M College campus | 7 marked pairs | Exposure Factor Datasets | |
Survival/ Mortality | 86% | estimated mortality rate in the first year, based on band returns | Both Male and Female | Juvenile | Texas A&M College campus | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|
Population Density | see table 1 | Both Male and Female | Adult | San Francisco Bay region | 64 sites | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Population Density | 15.6-27.4 (brackish marsh), 9.1-20.5 (altered brackish marsh) | breeding population densities | pairs/ha | Both Male and Female | Adult | Suisun Bay; San Francisco Bay; San Pablo Bay | 11 sample areas | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Type |
---|---|---|
Population Density | review | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Units | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|
Body Weight - Mean | 20.9 | 1.2 SE | g | Adult | 25 | Exposure Factor Datasets |
Clutches or Litters per year | 1 | litter/yr | 25 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 20.9 | 1.6 SE | 17.3 - 25.1 | g | Both Male and Female | Adult | Anytown (elev., 400 m) | 55 | Exposure Factor Datasets |
Clutch or Litter Size | 4.1 | 0.2 SE | 1 - 6 | #/litter | Female | Adult | Anytown (elev., 400 m) | 55 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | Mammals: Spermophilus beecheyi (57%); Microtus californicus (19%); Peromyscus maniculatus and Reithrodontomys megalotis (29%); Lepus californicus (29%); Thomomys bottae (19%); Birds (5%); Insects (10%); Seeds and berries (10%); Herbaceous vegetation (14%) | % of scats containing each prey item | % | Not Reported | Not Reported | Concord Naval Weapons Station | 21 | Exposure Factor Datasets |
Dietary Composition | Mammals: Spermophilus beecheyi (43%); Microtus californicus (61%); Peromyscus maniculatus and Reithrodontomys megalotis (30%); Lepus californicus (43%); Thomomys bottae (9%); Insects (13%); Seeds and berries (4%); Herbaceous vegetation (35%); Wheat (Avena spp.) (9%) | % of scats containing each prey item | % | Not Reported | Not Reported | Concord Naval Weapons Station | 23 | Exposure Factor Datasets |
Dietary Composition | Mammals: Spermophilus beecheyi (67%); Microtus californicus (45%); Peromyscus maniculatus and Reithrodontomys megalotis (29%); Lepus californicus (12%); Thomomys bottae (2%); Birds (5%); Seeds and berries (19%); Herbaceous vegetation (43%); Wheat (Avena spp.) (24%) | % of scats containing each prey item | % | Not Reported | Not Reported | Concord Naval Weapons Station | 42 | Exposure Factor Datasets |
Dietary Composition | Mammals: Spermophilus beecheyi (43%); Microtus californicus (30%); Peromyscus maniculatus and Reithrodontomys megalotis (43%); Lepus californicus (17%); Thomomys bottae (4%); Insects (13%); Seeds and berries (13%); Herbaceous vegetation (17%); Wheat (Avena spp.) (13%) | % of scats containing each prey item | % | Not Reported | Not Reported | Concord Naval Weapons Station | 23 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Foraging Distance | minimum distances moved by individuals on one trap night | 65-125 | m | Both Male and Female | Not Reported | Owens Valley (1,220 m) | 5 males, 6 females | Exposure Factor Datasets | ||
Body Weight - Mean | 36 | 0.22 SE | g | Male | Not Reported | Owens Valley | NR (74 males and females total) | Exposure Factor Datasets | ||
Body Weight - Mean | 33 | 0.32 SE | g | Female | Not Reported | Owens Valley | NR (74 males and females total) | Exposure Factor Datasets | ||
Metabolic Rate | 3.76 | resting metabolism at 5 degrees C, without a natural nest | 0.11 SE | cc O2/g/h | Not Reported | Not Reported | 6 individuals | Exposure Factor Datasets | ||
Metabolic Rate | 3.24 | resting metabolism at 5 degrees C, in a natural nest | 0.12 SE | cc O2/g/h | Not Reported | Not Reported | 6 individuals | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Foraging Distance | < 50 | maximum distance moved by individuals in one trap night | m | Not Reported | Not Reported | Owens Valley (1,220 m) | 219 | Exposure Factor Datasets | ||
Body Weight - Mean | 7.1 | 0.11 SE | 6.3-8.0 | g | Both Male and Female | Not Reported | Owens Valley | 22 individuals | Exposure Factor Datasets | |
Survival/ Mortality | overwinter survival rates for sampled populations, measured for 3 consecutive years | 36-82% | Not Reported | Not Reported | Owens Valley (1,220 m) | 11-27 individuals/yr | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|
Time of Molt | July and August | Not Reported | Not Reported | Owens Valley | Not Reported | Exposure Factor Datasets |