Thamnophis sirtalis ssp. concinnus

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Red-spotted Garter Snake (Thamnophis sirtalis ssp. concinnus)

Citation:

Some observations on the natural history of two Oregon garter snakes (Genus Thamnophis)

Author(s)
Stewart, Glenn R.
Pages
71-86
Year
Volume
2
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Time of Mating/ Laying Feb. - Apr. time of breeding Both Male and Female Adult Not Reported Willamette Valley Exposure Factor Datasets
Time of Hatching or Parturition late July - early Sept. Both Male and Female Embryo Not Reported Willamette Valley Exposure Factor Datasets
Duration of Incubation or Gestation 90 d Female Adult Not Reported Willamette Valley Exposure Factor Datasets
Age at Sexual Maturity 1 yr Male Adult Not Reported Willamette Valley Exposure Factor Datasets
Age at Sexual Maturity 2 yr Female Adult Not Reported Willamette Valley Exposure Factor Datasets
Clutch or Litter Size 8.2 determined by palpation young/litter Female Adult 18 Willamette Valley Exposure Factor Datasets
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OEHHA California Office of Environmental Health Hazard Assessment