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Spermophilus beecheyi

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
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
Time of Mating/ Laying Feb. - Mar. Both Male and Female Adult University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Not Reported Exposure Factor Datasets
Age at Sexual Maturity 1 yr Both Male and Female Adult University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Not Reported Exposure Factor Datasets
Clutches or Litters per year 1 litter/yr 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
Citation:

Hibernation and sociality in the California ground squirrel

Author(s)
Dobson, F. Stephen and David E. Davis
Pages
416-421
Year
Issue
2
Volume
67
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Time of Torpor or Hibernation see citation figure of seasonal activity patterns, including hibernation Both Male and Female Both Adults and Juveniles Santa Barbara; Bell Ranch; Hastings Reservation Not Reported Exposure Factor Datasets
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 Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean see citation figure of monthly changes in body weight g Both Male and Female Both Adults and Juveniles Calaveras Reservior 2 - 106/sample Exposure Factor Datasets
Body Weight - Mean 500 - 800 g Both Male and Female Adult Calaveras Reservoir Not Reported Exposure Factor Datasets
Longevity 3+ oldest individuals recaptured yrs Male Adult Calaveras Reservoir 2 Exposure Factor Datasets
Home Range 0.36 above ground area occupied for at least one mo 0.06 - 0.74 acres Male Adult Calaveras Reservoir 21 Exposure Factor Datasets
Home Range 0.59 above ground area occupied for at least one mo 0.12 - 1.62 acres Female Adult Calaveras Reservoir 51 Exposure Factor Datasets
Citation:

Ecology of the California ground squirrel on grazing lands

Author(s)
Fitch, Henry S.
Pages
559-596
Year
Volume
39
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Food Ingestion Rate range of total food weight for observed individuals 6.85 - 29.3 g dry wt/d Both Male and Female Adult San Joaquin Experimental Range 6 Exposure Factor Datasets
Time of Mating/ Laying Jan. - Feb. Both Male and Female Adult San Joaquin Experimental Range Exposure Factor Datasets
Survival/ Mortality % tagged young surviving to following year to become breeding adults; range over 3 yrs 36.1 - 51.6 % Both Male and Female Juvenile San Joaquin Experimental Range 321 - 339/yr Exposure Factor Datasets
Home Range 400 diameter of "typical" home range ft Both Male and Female Both Adults and Juveniles San Joaquin Experimental Range Not Reported Exposure Factor Datasets
Citation:

Energy requirements and diet of the California ground squirrel

Author(s)
Schitoskey, Frank, Jr. and Sarah R. Woodmansee
Pages
373-382
Year
Issue
2
Volume
42
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition see citation list of mean % of 25 items in monthly diets, based on stomach contents % Not Reported Not Reported San Joaquin Experimental Range 12-40/mo Exposure Factor Datasets
Citation:

Multiple litters in the California ground squirrel, Spermophilus beecheyi fisheri, in Tulare county

Author(s)
Simpson, G. L., and T.K. Lamunyon
Pages
101-104
Year
Volume
9
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutches or Litters per year evidence for 2nd litter in 20% of reproductively active females 1 - 2 litters/yr Female Adult Coho creek Not Reported Exposure Factor Datasets
Citation:

Physiological correlates of burrow gas conditions in the California ground squirrel

Author(s)
Baudinette, R.V.
Pages
733-743
Year
Volume
48
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Metabolic Rate see citation figure of oxygen consumption at ambient temperatures (15-35C) ml O2/g/hr Not Reported Not Reported captured at University of California, Irvine 10/group Exposure Factor Datasets
Citation:

Latitude and litter size of the California ground squirrel, Spermophilus beecheyi

Author(s)
Chapman, Joseph A. and Gordon S. Lind
Pages
101-105
Year
Volume
72
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size range of means for 2 sites 5.46 - 6.44 young/litter Female Adult Douglas and Benton counties {lat., 43-44.5^oN] 9-13/site Exposure Factor Datasets
Citation:

An experimental study of dispersal in the California ground squirrel

Author(s)
Dobson, F. Stephen
Pages
1103-1109
Year
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Time of Migration or Dispersal June - Aug. dispersal of young Both Male and Female Juvenile Hastings Natural History Reservation Not Reported Exposure Factor Datasets
Citation:

Summer and autumn breeding of the California ground squirrel

Author(s)
Storer, Tracy I.
Pages
235-237
Year
Volume
11
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Sample Size Type
Clutch or Litter Size range of means 5.5 - 8.1 embryos/female Female Adult Not Reported Exposure Factor Datasets
Citation:

The behaviour of California ground squirrels

Author(s)
Owings, Donald H., Mark Borchert and Ross Virginia
Pages
221-230
Year
Volume
25
Exposure Endpoint Type Endpoint Value Error Units Sex Life Cycle Stage Location Sample Size Type
Home Range 5466.78 1897.19 SD m2 Male Adult Capay (elev., 305 m) 2 Exposure Factor Datasets
Home Range 4217.07 1515.67 SD m2 Female Adult Capay (elev., 305 m) 5 Exposure Factor Datasets
Citation:

The California Ground Squirrel

Author(s)
Linsdale, Jean M.
Pages
475
Publisher
University of California Press
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 512.4 91.9 - 942.4 g Male Not Reported Hastings Natural History Reservation 397 Exposure Factor Datasets
Body Weight - Mean 397.3 106.9 - 806.2 g Female Not Reported Hastings Natural History Reservation 373 Exposure Factor Datasets
Clutch or Litter Size 7.5 estimated from embryo or embryo scar counts 5 - 12 young/litter Female Adult Hastings Natural History Reservation 40 Exposure Factor Datasets
Longevity 5 longest record of lifespan yrs Male Adult Hastings Natural History Reservation Not Reported Exposure Factor Datasets
Time of Molt June molt of juvenile or adult pelage Both Male and Female Both Adults and Juveniles Hastings Natural History Reservation Not Reported Exposure Factor Datasets
Citation:

The annual cycle of the California ground squirrel

Author(s)
Tomich, P. Quentin
Pages
213-282
Year
Volume
65
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 677 113.5 480 - 1009 g Male Adult Davis and Dixon 61 Exposure Factor Datasets
Body Weight - Mean 516 104.5 321-892 g Female Adult Davis and Dixon 112 Exposure Factor Datasets
Body Weight - Mean 528 referred to as "young males" 208.7 74 - 885 g Male Juvenile Davis and Dixon 124 Exposure Factor Datasets
Body Weight - Mean 373 referred to as "young females" 150.5 99 - 686 g Female Juvenile Davis and Dixon 115 Exposure Factor Datasets
Time of Mating/ Laying Mar. - Apr. Both Male and Female Adult Davis and Dixon Not Reported Exposure Factor Datasets
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