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Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.954 [0.945-0.962 (95% CI)] | Nest daily survial rate | B | Chick | Quivira National Wildlife Refuge | 100 nests | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Sex | Life Cycle Stage | Location | Type |
---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.463 | Modeled survival from fledgling to following April | 0.018 | B | Juvenile | Central coast California | Exposure Factor Datasets |
Survival/ Mortality | 0.691 | Modeled survival from fledgling to following April | 0.033 | B | Adult | Central coast California | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Survival/ Mortality | 0.734 | Modeled survival | 0.028 | seasons | M | Adult | Monterey Bay | 354 | Exposure Factor Datasets |
Survival/ Mortality | 0.693 | Modeled survival | 0.03 | seasons | F | Adult | Monterey Bay | 346 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Location | Sample Size | Type |
---|---|---|---|---|---|
Population Density | See citation Table 2 | Population estimates in North America | All of North America | 23555 estimated total | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Home Range | Cumulative homerange by chick age | B | Chick | Clam Beach | Exposure Factor Datasets | ||||
Home Range | 1027 | Adults tending broods in first 10 d | 172 | m | B | Adult | Clam Beach | 29 | Exposure Factor Datasets |
Home Range | Inside fence: 780, outside fence: 1353 | Daily distance from nest | Inside fence: 90, outside fence: 90 | m | M | Adult | Clam Beach | Inside fence: 5, outside fence: 5 | Exposure Factor Datasets |
Home Range | Inside fence: 438, outside fence: 732 | Daily distance from nest | Inside fence:42, outside fence: 65 | m | M | Adult | Clam Beach | Inside fence: 10, outside fence: 9 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 1995: 2.66, 1996: 2.83 | 1995: 0.62, 1996: 0.46 | Eggs/nest | Embryo | Alkaline flat at Salt Plains National Wildife Refuge | 1995: 238, 1996: 177 | Exposure Factor Datasets | |
Hatching Success | 1995: 0.37, 1996: 0.51 | Nest success based on observation | % of total | Embryo | Alkaline flat at Salt Plains National Wildife Refuge | 1995: 238, 1996: 177 | Exposure Factor Datasets | |
Hatching Success | 1995: 0.37, 1996: 0.58 | Nest success based on Mayfield Method | % of total | Embryo | Alkaline flat at Salt Plains National Wildife Refuge | 1995: 98, 1996: 77 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 1309 | 162 | g | M | Adult | 189 | Exposure Factor Datasets |
Body Weight - Mean | 1058 | 129 | g | F | Adult | 194 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Time of Nesting | See citation Table 1 | Nest initation dates | Adult | Delta Marsh, Manitoba | Exposure Factor Datasets | ||
Survival/ Mortality | 1973: 46, 1974: 84, 2009: 49, 2010: 43 | Nest survival | % | Embryo | Delta Marsh, Manitoba | 1973: 195. 1974: 181, 2009: 211, 2010: 445 nests | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|
Clutch or Litter Size | See citation Table 1 | Brood size as % of n | Embryo | Clear Lake | See citation | Exposure Factor Datasets |
Clutch or Litter Size | See citation Table 2 | Brood size as % of n | Embryo | Eagle Lake | See citation | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 34.7 | 2.1 | g | M | Adult | Channel Islands | 28 | Exposure Factor Datasets |
Body Weight - Mean | 36.1 | 2.8 | g | F | Adult | Channel Islands | 71 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Time of Molt | Body: egg-hatching,Rectrice: 40 days post egg-hatch, Primaries: 30 days post-rectrice molt start, Secondaries: immediately post-primaries | Start time of molting relative to breeding | Adult | South Farallon Island | 981 | Exposure Factor Datasets | |
Time of Molt | Body: adult egg-laying,Rectrice: 40 days post egg-laying by adults, Primaries: 30 days post-rectrice molt start, Secondaries: immediately post-primaries | Start time of molting relative to breeding | Days | Juvenile | South Farallon Island | 981 | Exposure Factor Datasets |
Time of Molt | 257 | Length of molt cycle | Days | Adult | South Farallon Island | 981 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Population Density | 0.09 | Individuals/sq km | 1.6041 | Individuals/sq km | B | Both Adults and Juveniles | Bodega Bay-Cypress Point | 977 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Population Density | See citation Table 2 | Number of active nests/number of potential sites checked | Number of active nests/number of potential sites checked | B | Point Reyes National Seashore | See citation | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Age at Fledging, Metamorphosis, Weaning | >76 | Days post hatch | Days | NR | Fledgling | Anacapa Islands | 1 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Sample Size | Type |
---|---|---|---|---|---|---|
Population Density | 10000 | Approx. individuals off CA coast | Individuals | B | 10,000 | Exposure Factor Datasets |
Population Density | See citation Figure 20 | Birds/sq km | B | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Units | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Hatching Success | 2008–2011: 49.5 | Breeding success in artificial and natural nests (percent of nests fledging chicks) | Orizaba Rock, Santa Cruz Island | 105 | Exposure Factor Datasets | ||
Hatching Success | 2005–2011: 71.2 | Breeding success in natural nests (percent of nests fledging chicks) | Cave of the Birds' Eggs, Santa Cruz Island | 156 | Exposure Factor Datasets | ||
Time of Mating/ Laying | 43267 | 2.5 | Orizaba Rock, Santa Cruz Island | 96 | Exposure Factor Datasets | ||
Time of Mating/ Laying | 43257 | 2.1 | Cave of the Birds' Eggs, Santa Cruz Island | 156 | Exposure Factor Datasets | ||
Fledging or Weaning Rate | See citation Figure 8 | Chicks fledged/nest | % | Orizaba Rock, Santa Cruz Island | Exposure Factor Datasets | ||
Fledging or Weaning Rate | See citation Figure 8 | Chicks fledged/nest | % | Cave of the Birds' Eggs, Santa Cruz Island | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Units | Sex | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|
Body Weight - Mean | 34.2 | 2.3 | g | NR | Anacapa Islands | 19 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Location | Type |
---|---|---|---|---|---|
Population Density | Total individuals: 6,461; breeders: 3,402 | Estimated population size on island | B | South Farallon Island | Exposure Factor Datasets |
Population Density | Total individuals:4,284; breeders: 1,990 | Estimated population size on island | B | South Farallon Island | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Error | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 1,137 | 30 SE | g | Female | Both Adults and Juveniles | Mingo Basin | 12 | Exposure Factor Datasets |
Body Weight - Mean | 1,083 | 37 SE | g | Female | Both Adults and Juveniles | Mingo Basin | 9 | Exposure Factor Datasets |