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Spermophilus beecheyi

Citation:

A population study of the Beechey ground squirrel in central California

Author(s)
Evans, F. C. and R. Holdenried
Pages
231-260
Year
Issue
2
Volume
24
Exposure Endpoint Type Endpoint Value Range Units Sex Life Cycle Stage Location Sample Size Type
Time of Molt May Both Male and Female Adult Calaveras Reservoir Not Reported Exposure Factor Datasets
Population Density 7 #/acre Both Male and Female Both Adults and Juveniles Calaveras Reservoir Not Reported Exposure Factor Datasets
Clutches or Litters per year 1 litters/yr Female Adult Calaveras Reservoir Not Reported Exposure Factor Datasets
Clutch or Litter Size 6.25 2 - 9 young/litter Female Adult Calaveras Reservoir 8 litters Exposure Factor Datasets
Citation:

California ground squirrels at Concord Naval Weapons station: alternatives for control and the ecological consequences

Author(s)
Loredo-Prenderville, I., D. Van Vuren , Amy J. Kuenzi, and Michael Morrison
Pages
72-77
Publisher
University of California, Davis
Year
Volume
16
Exposure Endpoint Type Endpoint Value Error Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density 32.0 16.23 SD 8.6-52.1 #/ha Not Reported Adult Concord Naval Weapons Station 5 study sites Exposure Factor Datasets
Citation:

Natural history of the ground squirrels of California

Author(s)
Grinnel, J. and J.S. Dixon
Pages
597-708
Year
Volume
7
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 696 600-923 g Male Adult 10 Exposure Factor Datasets
Body Weight - Mean 592 491-774 g Female Adult 10 Exposure Factor Datasets
Population Density 76 #/acre Not Reported Not Reported Walnut Creek 3 counts Exposure Factor Datasets
Population Density 20 #/acre Not Reported Not Reported Walnut Creek 3 counts Exposure Factor Datasets
Clutches or Litters per year 1 litter/yr Female Adult Not Reported Exposure Factor Datasets
Clutch or Litter Size based on embryo counts 4 - 11 young/litter Female Adult Not Reported Exposure Factor Datasets
Body Weight - Mean 61 g Not Reported Juvenile 1 Exposure Factor Datasets
Longevity 5 yrs Not Reported Adult Not Reported Exposure Factor Datasets
Citation:

Patterns of progesterone secretion in free-living California ground squirrels (Spermophilus beecheyi)

Author(s)
Holekamp, K.E., S. Nunes and F. Talamantes
Pages
1051-1059
Year
Issue
5
Volume
39
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Duration of Incubation or Gestation 28-30 d Female Adult University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] 128 Exposure Factor Datasets
Age at Fledging, Metamorphosis, Weaning 5-6 wks Not Reported Juvenile University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Not Reported Exposure Factor Datasets
Time of Torpor or Hibernation May/June - Oct. months of estivation Male Adult University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] 144 Exposure Factor Datasets
Time of Torpor or Hibernation July - Dec. months of estivation Female Adult University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] 128 Exposure Factor Datasets
Citation:

Ventilatory accommodation of changing oxygen demand in sciurid rodents

Author(s)
Chappell, Mark A.
Pages
722-730
Year
Volume
162
Exposure Endpoint Type Endpoint Value Error Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 531 75 g Not Reported Not Reported captured at University of California, Riverside 6 Exposure Factor Datasets
Citation:

Energy metabolism and evaporative water loss in the California ground squirrel

Author(s)
Baudinette, Russel V.
Pages
57-72
Year
Volume
81
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 599.6 g Not Reported Not Reported University of California, Irvine 10 Exposure Factor Datasets
Body Weight - Mean 402.3 g Not Reported Not Reported University of California, Irvine 10 Exposure Factor Datasets
Citation:

Circulating prolactin in free-living california ground squirrels (Spermophilus beecheyi)

Author(s)
Holekamp, Kay E., Scott Nunes, and Frank Talamantes
Pages
484-492
Year
Volume
71
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size 8.3 young/litter Female Adult University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] 20 Exposure Factor Datasets
Clutch or Litter Size 6.9 young/litter Female Adult University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] 14 Exposure Factor Datasets
Time of Molt April; June; July Not Reported Not Reported University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Not Reported Exposure Factor Datasets
Citation:

Reproductive behaviour and multiple paternity of California ground squirrels

Author(s)
Boellstorff, Diane E., Donald H. Owings, Maria Cecilia T. Penedo and Marta J. Hersek
Pages
1057-1064
Year
Volume
47
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density range over 2 yrs 70.4 - 92.5 #/ha Both Male and Female Adult Camp Ohlone, East Bay Regional Park District Not Reported Exposure Factor Datasets
Time of Mating/ Laying Feb.-Mar. breeding Both Male and Female Adult Camp Ohlone, East Bay Regional Park District Not Reported Exposure Factor Datasets

Peromyscus maniculatus

Citation:
Exposure Endpoint Type Endpoint Value Life Cycle Stage Location Sample Size Type
Age at Fledging, Metamorphosis, Weaning teenager Adult, Neonate Blue Lake, 75 long., 95 lat. 47 Exposure Factor Datasets

Aechmophorus occidentalis

Citation:

The diving and feeding activity of the western grebe on the breeding grounds

Author(s)
Lawrence, George E.
Pages
3-16
Year
Issue
1
Volume
52
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition Ascaradina (3), Gastropoda (10, Orthoptera (2), Hemiptera (2), Diptera (1), Coleoptera (4), Siluridae (4), Centrarchidae (77), plant (4) % of total stomach content volume % Not Reported Adult Clear Lake 27 birds Exposure Factor Datasets
Food Ingestion Rate 22.4 estimated mass of fish consumed daily, based on stomach contents g Not Reported Adult Clear Lake 1 bird Exposure Factor Datasets
Citation:

Estimation and testing of parametersin Richard's growth model for western grebes

Author(s)
White, Gary C. and John T. Ratti
Pages
315-323
Year
Volume
41
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Growth Rate -0.1321 growth rate coefficient estimate based on Richard's growth model Both Male and Female Juvenile Bear River Migratory Bird Refuge (collection site) 4 birds Exposure Factor Datasets
Body Weight - Mean estimated initial weights 27.524-30.510 g Both Male and Female Juvenile Bear River Migratory Bird Refuge (collection site) 4 birds Exposure Factor Datasets
Body Weight - Mean estimates of asymptotic weights 1065.4-1120.9 g Both Male and Female Juvenile Bear River Migratory Bird Refuge (collection site) 4 birds Exposure Factor Datasets
Citation:

Western grebe, Aechmophorus occidentalis, wintering biology and contaminant accumulation in Commencement Bay, Puget Sound, Washington

Author(s)
Henny, Charles J., Lawrence J. Blus and Robert A. Grove
Pages
460-472
Year
Issue
3
Volume
104
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean range of mean body weights 1530-1583 g Male Both Adults and Juveniles Commencement Bay 18 birds Exposure Factor Datasets
Body Weight - Mean range of mean body weights 1108-1406 g Female Both Adults and Juveniles Commencement Bay 22 birds Exposure Factor Datasets
Citation:

Nesting ecology and production of western grebes at Bear River Migratory Bird Refuge, Utah

Author(s)
Lindvall, Mark L. and Jessop B. Low
Pages
66-70
Year
Issue
1
Volume
84
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Time of Mating/ Laying early July peak of laying period Female Adult Bear River Migratory Bird Refuge 386 nests Exposure Factor Datasets
Duration of Incubation or Gestation 24 incubation period 21-28 d Both Male and Female Embryo Bear River Migratory Bird Refuge 14 clutches Exposure Factor Datasets
Clutch or Litter Size 2.6 mean clutch size 1-4 eggs Female Adult Bear River Migratory Bird Refuge 70 nests Exposure Factor Datasets
Hatching Success 21% percent of nests located in emergent vegetationin which at least one chick hatched Both Male and Female Hatchling Bear River Migratory Bird Refuge 221 nests Exposure Factor Datasets

Microtus californicus

Citation:

Ventilatory accommodation of changing oxygen demand in sciurid rodents

Author(s)
Chappell, Mark A.
Pages
722-730
Year
Volume
162
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Metabolic Rate 0.0251 (10C); 0.0179 (20C); 0.0114 (30C) mean minium metabolic rate estimated as oxygen consumption at ambient temperatures (10-30C) ml O2/g/min Not Reported Not Reported 6/group Exposure Factor Datasets
Citation:

Energy metabolism and evaporative water loss in the California ground squirrel

Author(s)
Baudinette, Russel V.
Pages
57-72
Year
Volume
81
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Sample Size Type
Metabolic Rate 0.53 mean basal oxygen consumption at 28 degree C 0.04 ml O2/g/ hr Not Reported Not Reported 10 Exposure Factor Datasets

Zalophus californianus

Citation:

Mortality of California sea lion pups at Los Islotes, Baja California, Mexico

Author(s)
Aurioles, David and Francisco Sinsel
Pages
180-183
Year
Issue
1
Volume
69
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Survival/ Mortality 51.6 mean annual minimum survival rate; data collection started 5-6 weeks after beginning of pupping season 7.7 SD 44.0 - 59.4 % Not Reported Pup Los Islotes, Baja California Sur 3 yrs Exposure Factor Datasets
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OEHHA California Office of Environmental Health Hazard Assessment