Psaltriparus minumus
Bushtit (Psaltriparus minumus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Time of Fledging or Metamorphosis | 14 | age at which young left the nest | d | Not Reported | Not Reported | 1 brood | Stanford University Campus | Exposure Factor Datasets | Santa Clara |
| Time of Mating/ Laying | Mar-Apr | time of peak nesting activity | Both Male and Female | Adult | Not Reported | Stanford University Campus | Exposure Factor Datasets | Santa Clara | |
| Territory Size | approximate range of nesting territory diameters | yd | Both Male and Female | Adult | Not Reported | Stanford University Campus | Exposure Factor Datasets | Santa Clara | |
| Duration of Incubation or Gestation | 13 | incubation period from start to hatching | d | Not Reported | Embryo | 1 clutch | Stanford University Campus | Exposure Factor Datasets | Santa Clara |
| Body Weight - Mean | range of individual body weights | g | Not Reported | Hatchling | 2 birds | Stanford University Campus | Exposure Factor Datasets | Santa Clara |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Error |
|---|---|---|---|---|---|---|---|---|---|---|
| Population Density | 71.2 | density estimate on a grazed plot by transect counts using an exponential polynomial model | birds/40 ha | Not Reported | Not Reported | 64 birds | San Joaquin Experimental Range | Exposure Factor Datasets | Madera | 49.6-92.8 95% CI |
| Population Density | 72.8 | density estimate on an ungrazed plot by point count using an exponential polynomial model | birds/40 ha | Not Reported | Not Reported | 43 birds | San Joaquin Experimental Range | Exposure Factor Datasets | Madera | 50.1-95.5 95% CI |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition | Error |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Territory Size | 0.4 | average territory size based on > 400 point observations | ha | Not Reported | Adult | 12 territories | Jasper Ridge Biological Experimental Area, nr Portola Valley | Exposure Factor Datasets | San Mateo | breeding | 0.08 |
| Body Weight - Mean | 5.37 | mean body weight of museum specimens | g | Not Reported | Not Reported | 23 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
|---|---|---|---|---|---|---|---|---|---|---|
| Population Density | 2.2 | breeding density estimate | birds/36 ha | Male | Adult | 6 territories | Palomarin Field Station, Point Reyes Bird Observatory | Exposure Factor Datasets | Marin | breeding |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties | Condition |
|---|---|---|---|---|---|---|---|---|---|
| Foraging Distance | See figure | figure showing mapping of approximate ranges of two flocks during one season | Both Male and Female | Not Reported | 2 flocks | University of California campus | Exposure Factor Datasets | Santa Barbara | nonbreeding |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Metabolic Rate | 3.96 | approximate basal rate of nocturnal oxygen consumption, measured at 30 deg C | cc O^2/g/h | Not Reported | Adult | 12 birds | captured at Occidental College, Los Angeles | Exposure Factor Datasets | Laboratory | |
| Metabolic Rate | metabolic rate = 0.36(ambient T) + 14.64 | linear regression equation for relationship between nocturnal metabolism and ambient temperature | Not Reported | Adult | 12 birds | captured at Occidental College, Los Angeles | Exposure Factor Datasets | Laboratory | ||
| Body Weight - Mean | 5.5 | mean body weight | g | Not Reported | Adult | 6 birds | captured at Occidental College, Los Angeles | Exposure Factor Datasets | 0.2 SE | Laboratory |
| Food Ingestion Rate | 35.17 | consumption of mealworms at 20 deg C | kJ/d | Not Reported | Adult | 6 birds | captured at Occidental College, Los Angeles | Exposure Factor Datasets | 1.26 SE | Laboratory |
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