San Clemente Loggerhead Shrike (Lanius ludovicianus ssp. mearnsi)
San Clemente Loggerhead Shrike (Lanius ludovicianus ssp. mearnsi)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Dietary Composition | Mollusca (0.00), Crustacea (0.27), Arachnida (0.14), Insecta (14.77), Reptilia (53.29), Mammalia (27.66), Aves (3.86) | percent of total prey found in pellets by biomass | % | Not Reported | Not Reported | 1238 pellets | San Clemente Island | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|---|
| Population Density | range in density of pairs, 4 years | pairs/km | Both Male and Female | Adult | 5-13 pairs/year | San Clemente Island | Exposure Factor Datasets | ||
| Fledging or Weaning Rate | 2.33 | mean number of fledglings produced per successful nest | fledglings/nest | Not Reported | Fledgling | 29 nests | San Clemente Island | Exposure Factor Datasets | 0.34 SD |
| Survival/ Mortality | 45 | percent of fledglings that died before reaching independence from parents | % | Not Reported | Fledgling | 29 nests | San Clemente Island | Exposure Factor Datasets | |
| Territory Size | 34 | mean pair foraging area during breeding season, 4 years | ha | Both Male and Female | Adult | 12 territories | San Clemente Island | Exposure Factor Datasets | 12 SD |
| Longevity | 3 | adult life expectancy based on duration of home range occupancy | yr | Female | Adult | Not Reported | San Clemente Island | Exposure Factor Datasets |
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