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Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Time of Mating/ Laying | December | time of breeding | Both Male and Female | Adult | Elk Hills Naval and Buena Vista Petroleum Reserves | Not Reported | Exposure Factor Datasets | |
Time of Hatching or Parturition | early February | Female | Adult | Elk Hills Naval and Buena Vista Petroleum Reserves | Not Reported | Exposure Factor Datasets | ||
Clutch or Litter Size | 4.1 | mean litter size | pups | Female | Adult | Elk Hills Naval and Buena Vista Petroleum Reserves | Not Reported | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Home Range | 200 | denning range (area enclosing occupied den sites) | ha | Both Male and Female | Adult | Rand Open Area and Desert Tortoise Research Natural Area | 16 foxes | Exposure Factor Datasets | ||
Time of Mating/ Laying | January | based on reproductive condition of adults at time of capture | Both Male and Female | Adult | Rand Open Area and Desert Tortoise Research Natural Area | Not Reported | Exposure Factor Datasets | |||
Longevity | 10.2 | measured from time of capture to time of last capture or radio-telemetry location | 0.8 SE | 8-14 | mo | Both Male and Female | Adult | Rand Open Area and Desert Tortoise Research Natural Area | 6 foxes | Exposure Factor Datasets |
Longevity | 2.4 | measured from time of capture to time of last capture or radio-telemetry location | 0.7 SE | mo | Both Male and Female | Adult | Rand Open Area and Desert Tortoise Research Natural Area | 13 foxes | Exposure Factor Datasets | |
Body Weight - Mean | 2034 | 78 SE | g | Male | Adult | Rand Open Area and Desert Tortoise Research Natural Area | 15 foxes | Exposure Factor Datasets | ||
Body Weight - Mean | 1936 | 64 SE | g | Female | Adult | Rand Open Area and Desert Tortoise Research Natural Area | 13 foxes | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Time of Torpor or Hibernation | Nov.-Mar. | hibernation duration approximates 100 d | Not Reported | Both Adults and Juveniles | Victorville | >12 | Exposure Factor Datasets | |
Metabolic Rate | Log OC = 0.044T + 0.64 | regression equation for oxygen consumption (OC in ul O2/g/hr; log base 10) at various temperatures (T, 0 - 15 C) | ul O2/g/hr | Not Reported | Adult | Victorville | 5-8/temperature | Exposure Factor Datasets |
Metabolic Rate | 20 | oxygen consumption measured at 15C | ul O2/g/hr | Not Reported | Adult | Victorville | 8 | Exposure Factor Datasets |
Body Weight - Mean | 13.8 | g | Not Reported | Adult | Victorville | 8 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Body Weight - Mean | 13.1 | 9.5 - 18.0 | g | Not Reported | Adult | 65 | Exposure Factor Datasets | |
Metabolic Rate | see citation | figure of standard metabolic rate measured as resting oxygen consumption at various temperatures (20-40C) | cc O2/g/hr | Not Reported | Adult | 31 | Exposure Factor Datasets | |
Metabolic Rate | 0.422 (20C); 0.783 (25C); 1.120 (30C); 1.315 (35C); 1.253 (40C) | "aerobic increment during activity"; mean oxygen consumption during 2 minutes of burst activity at various temperatures (20-40C) | cm3 O2/g/hr | Not Reported | Adult | 5-8 animals/temperature | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Error | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | 8.2 | 7-9 | eggs/clutch | Female | Adult | Ecology Research Area, University of California, Los Angeles | Not Reported | Exposure Factor Datasets | ||
Body Weight - Mean | 11.9 | 0.6SE | g | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 11 | Exposure Factor Datasets | ||
Body Weight - Mean | 4.4 | 0.5SE | g | Not Reported | Juvenile | Ecology Research Area, University of California, Los Angeles | 5 | Exposure Factor Datasets | ||
Body Weight - Mean | 11.5 | 0.4SE | g | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 20 | Exposure Factor Datasets | ||
Metabolic Rate | 0.220 | field metabolic rate estimated by carbon dioxide production, using doubly labelled water | 0.019SE | ml CO2/g/hr | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 11 | Exposure Factor Datasets | |
Metabolic Rate | 0.198 | field metabolic rate estimated by carbon dioxide production, using doubly labelled water | 0.034SE | ml CO2/g/hr | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 11 | Exposure Factor Datasets | |
Metabolic Rate | 0.035 | resting metabolic rate at 18.5C, estimated as carbon dioxide production rate | 0.002SE | ml CO2/g/hr | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 11 | Exposure Factor Datasets | |
Metabolic Rate | 0.052 | resting metabolic rate at 18.5C, estimated as carbon dioxide production rate | 0.012SE | ml CO2/g/hr | Not Reported | Juvenile | Ecology Research Area, University of California, Los Angeles | 4 | Exposure Factor Datasets | |
Metabolic Rate | 0.185 | resting metabolic rate at 35C, estimated as carbon dioxide production rate | 0.015SE | ml CO2/g/hr | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 11 | Exposure Factor Datasets | |
Metabolic Rate | 0.300 | resting metabolic rate at 35C, estimated as carbon dioxide production rate | 0.052SE | ml CO2/g/hr | Not Reported | Juvenile | Ecology Research Area, University of California, Los Angeles | 4 | Exposure Factor Datasets | |
Metabolic Rate | 0.192 | resting metabolic rate at 35C, estimated as carbon dioxide production rate | 0.017SE | ml CO2/g/hr | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 19 | Exposure Factor Datasets | |
Metabolic Rate | 0.049 | resting metabolic rate at 20C, estimated as carbon dioxide production rate | 0.006SE | ml CO2/g/hr | Both Male and Female | Adult | Ecology Research Area, University of California, Los Angeles | 11 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Dietary Composition | insecta (97%); arachnida (0.8%); plants (0.3%); unidentified (1.6%) | % of total food dry weight, based on stomach contents | % | Not Reported | Both Adults and Juveniles | southern Washoe County (elev., 1150-1450m) | 18 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Range | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|---|
Clutch or Litter Size | CS = 0.378SVL - 17.04 | regression equation relating clutch size (CS; # eggs/oviduct) to snout-vent length (SVL, mm) of female. | eggs/clutch | Female | Adult | Puente Hills and San Gabriel River, Whittier | 49 | Exposure Factor Datasets | |
Clutch or Litter Size | 4-16 | eggs/clutch | Female | Adult | Puente Hills and San Gabriel River, Whittier | 49 | Exposure Factor Datasets | ||
Clutches or Litters per year | 1-3 | clutches/yr | Female | Adult | Puente Hills and San Gabriel River, Whittier | 118 | Exposure Factor Datasets |
Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
---|---|---|---|---|---|---|---|---|
Home Range | 49.98 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Male | Juvenile | Hastings Natural History Reservation, Carmel Valley | 87 animals | Exposure Factor Datasets |
Home Range | 19.64 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Female | Juvenile | Hastings Natural History Reservation, Carmel Valley | 103 animals | Exposure Factor Datasets |
Home Range | 120.96 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Male | Hastings Natural History Reservation, Carmel Valley | 23 animals | Exposure Factor Datasets | |
Home Range | 76.25 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Female | Hastings Natural History Reservation, Carmel Valley | 48 animals | Exposure Factor Datasets | |
Home Range | 131.92 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Male | Hastings Natural History Reservation, Carmel Valley | 36 animals | Exposure Factor Datasets | |
Home Range | 76.50 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Female | Hastings Natural History Reservation, Carmel Valley | 37 animals | Exposure Factor Datasets | |
Home Range | 71.40 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Male | Adult | Hastings Natural History Reservation, Carmel Valley | 11 animals | Exposure Factor Datasets |
Home Range | 51.26 | home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual | m2 | Female | Adult | Hastings Natural History Reservation, Carmel Valley | 28 animals | Exposure Factor Datasets |