| Chemical | Exposure Endpoint Type | Toxicity Endpoint Type | Endpoint Description | Endpoint Value | Sample Size | Units | Condition | Life Cycle Stage | Study Duration | Specific Location | Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Population Density | 17 | 17 pairs | pairs/172 miles of river | breeding | Adult | Yukon River | Exposure Factor Datasets | ||||
| Clutch or Litter Size | average number of eggs or downy chicks per pair | 3.09 | 11 pairs | eggs or downy chicks/nest | breeding | Adult | Yukon River | Exposure Factor Datasets | |||
| Fledging or Weaning Rate | average number of fledged or nearly fledged young per occupied cliff | 1.80 | 12 pairs | fledglings/nest | breeding | Adult | Yukon River | Exposure Factor Datasets | |||
| Dietary Composition | dietary contribution of groups of species, by weight, based on collection of remains at nests | waterfowl (50%), shorebirds (10-12%), small gulls (10-15%), small land birds (20%), small mammals (2-3%) | 329 prey items | breeding | Adult, Chick | Yukon River | Exposure Factor Datasets | ||||
| DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), DIELDRIN | TOX-EXP IND - accumulation | mean concentrations of pesticides in eggs (ppm, dry weight) | 48.0 (DDE), 3.35 (DDD), 1.02 (DDT), 1.45 (dieldrin) | 2 eggs | Adult | NR | Yukon River | Toxicity Factor Datasets | |||
| DDD (4,4'-), DDE (4,4'-), DDT (4,4'-), DIELDRIN | TOX-EXP IND - accumulation | mean concentrations of pesticides in fat (ppm, dry weight) | 622.0 (DDE), 25.4 (DDD), 25.3 (DDT), 6.20 (dieldrin) | 4 birds | breeding | Adult | NR | Yukon River | Toxicity Factor Datasets |
