Gopherus agassizi (Desert Tortoise)

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Desert Tortoise (Gopherus agassizi)

Citation:

Reproduction of Gopherus agassizii in the Sonoran Desert, Arizona.

Author(s)
Averill-Murray, R.C.
Issue
2
Volume
4
Exposure Endpoint Type Endpoint Value Endpoint Description Units Life Cycle Stage Sample Size Location Type Countries Error
Time of Mating/ Laying 42929 Oviposition date Date Adult 13 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 9 d
Clutch or Litter Size 4.6 Mean clutch size Number of eggs 5 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 1.5
Time of Mating/ Laying 42941 Oviposition date Date Adult 7 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 21 d
Clutch or Litter Size 5.7 Mean clutch size Number of eggs 7 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 2.43
Time of Mating/ Laying 42913 Oviposition date Date Adult 8 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 14 d
Clutch or Litter Size 3.8 Mean clutch size Number of eggs 4 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 1.26
Time of Mating/ Laying 42917 Oviposition date Date Adult 4 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 7 d
Clutch or Litter Size 5.7 Mean clutch size Number of eggs 12 Sugarloaf Mountain, AZ Exposure Factor Datasets USA 1.49
Citation:

Survival during early life stages of the desert tortoise (Gopherus agassizii) in the south-central Mojave Desert.

Author(s)
Bjurlin, C.D. and Bissonette, J.A.
Issue
4
Volume
38
Exposure Endpoint Type Endpoint Value Endpoint Description Units Life Cycle Stage Sample Size Location Type California Counties Countries
Hatching Success 73.7 % normal neonate produced % Neonate 28 Marine Corps Air Ground Combat
Center, Twentynine Palms, CA 		Exposure Factor Datasets San Bernardino USA
Hatching Success 67 % normal neonate produced % Neonate 63 Marine Corps Air Ground Combat
Center, Twentynine Palms, CA 		Exposure Factor Datasets San Bernardino USA
Citation:

Nutritional quality of natural foods of juvenile and adult desert tortoises (Gopherus agassizii): calcium, phosphorus, and magnesium digestibility.

Author(s)
Hazard, L.C., Shemanski, D.R. and Nagy, K.A.
Issue
1
Volume
44
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties Countries Error
Growth Rate -0.045 Voluntary consumption of A. hymenoides grass % mass change/day NR Both Adults and Juveniles 10 University of California, Los Angeles Exposure Factor Datasets 0.5-1.5 y old Los Angeles USA 0.038
Growth Rate -0.043 Voluntary consumption of S. barbatus grass % mass change/day NR Both Adults and Juveniles 10 University of California, Los Angeles Exposure Factor Datasets 0.5-1.5 y old Los Angeles USA 0.025
Growth Rate 0.139 Voluntary consumption of M. glabrata forb % mass change/day NR Both Adults and Juveniles 10 University of California, Los Angeles Exposure Factor Datasets 0.5-1.5 y old Los Angeles USA 0.128
Growth Rate 0.162 Voluntary consumption of E. cicutarium forb % mass change/day NR Both Adults and Juveniles 10 University of California, Los Angeles Exposure Factor Datasets 0.5-1.5 y old Los Angeles USA 0.133
Citation:

Desert tortoises (Gopherus agassizii) are selective herbivores that track the flowering phenology of their preferred food plants.

Author(s)
Jennings, W.B. and Berry, K.H.
Issue
1
Volume
10
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type California Counties Countries
Dietary Composition See citation Table 6 B Adult 18 Desert Tortoise Research Natural Area,
eastern Kern County, California 		Exposure Factor Datasets Kern USA
Dietary Composition See citation Table 8 B Adult 18 Desert Tortoise Research Natural Area,
eastern Kern County, California 		Exposure Factor Datasets Kern USA
Citation:

Climatic variation affects clutch phenology in Agassiz’s desert tortoise Gopherus agassizii.

Author(s)
Lovich, J., Agha, M., Meulblok, M., Meyer, K., Ennen, J., Loughran, C., Madrak, S. and Bjurlin, C.
Issue
1
Volume
19
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Type California Counties Condition Countries
Time of Mating/ Laying See citation Figure 2 Clutch phenology F Adult Mesa wind farm near Palm Springs, CA Exposure Factor Datasets Riverside Gravid USA
Citation:

Relative abundance and demographic structure of Agassiz’s desert tortoise (Gopherus agassizii) along roads of varying size and traffic volume.

Author(s)
Nafus, M.G., Tuberville, T.D., Buhlmann, K.A. and Todd, B.D.
Volume
162
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties Countries
Home Range See citation Burrow location relative to roadways B Both Adults and Juveniles 149-253 Mojave National Preserve Exposure Factor Datasets San Bernardino USA
Citation:

Head-started desert tortoises (Gopherus agassizii): movements, survivorship and mortality causes following their release.

Author(s)
Nagy, K.A., Scott Hillard, L., Tuma, M.W. and Morafka, D.J.
Issue
1
Volume
10
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties Countries
Survival/ Mortality See citation Figure 6; predation, exposure Cause of death relative to body length B Both Adults and Juveniles 53 Fort Irwin National Training Center Exposure Factor Datasets San Bernardino USA
Citation:

Mojave desert tortoise (Gopherus agassizii) thermal ecology and reproductive success along a rainfall cline.

Author(s)
Sieg, A.E., Gambone, M.M., Wallace, B.P., Clusella‐trullas, S., Spotila, J.R. and Avery, H.W.
Issue
3
Volume
10
Exposure Endpoint Type Endpoint Value Endpoint Description Units Life Cycle Stage Sample Size Location Type California Counties Countries Error
Clutch or Litter Size 3.3 Clutch size Number of eggs Embryo 19 Ivanpah Valley Exposure Factor Datasets San Bernardino USA 0.2
Clutch or Litter Size 3.4 Clutch size Number of eggs Embryo 15 Ivanpah Valley Exposure Factor Datasets San Bernardino USA 0.2

Citation:
Chemical Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties Countries Lab
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE 72 mg/kg [49-106 (95% CI)] LD50 M Adult 44 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE 88 mg/kg [65-119 (95% CI)] LD50 F Adult 44 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE 3.25 d Mean days of survival M Adult 42 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE Decreased to near zero comp to control Cricket consumption M Adult 42 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE No effect Body weight change M Adult 42 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE No effect Hematological chemistry M Adult 42 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
2,4,6-TRINITROTOLUENE See citation Figure 1 Cricket consumption M Adult 60 Toxicity Factor Datasets Lab
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE Decreased Cricket consumption M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
2,4,6-TRINITROTOLUENE Threshold dose 25-35 mg/kg/d Chromaturia/vent area staining M Adult 60 Toxicity Factor Datasets Lab
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE Decreased Body weight change M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
2,4,6-TRINITROTOLUENE Enlarged Liver weight M Adult 60 Toxicity Factor Datasets Lab
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE No effect Brain weight M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
2,4,6-TRINITROTOLUENE Enlarged Kidney weight M Adult 60 Toxicity Factor Datasets Lab
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE Increased Liver weight M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
2,4,6-TRINITROTOLUENE Increased Brain/body weight M Adult 60 Toxicity Factor Datasets Lab
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE Increased Kidney weight M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA
2,4,6-TRINITROTOLUENE Decreased 35-45 mg/kg/d Testes/body weight M Adult 60 Toxicity Factor Datasets Lab
2,4,6-TRINITROTOLUENE Increased 35-45 mg/kg/d Spleen/body weight M Adult 60 Toxicity Factor Datasets Lab
2,4,6-TRINITROTOLUENE See citation Hematological chemistry M Adult 60 Toxicity Factor Datasets Lab
2,4,6-TRINITROTOLUENE No effect Testosterone concentation M Adult 60 Toxicity Factor Datasets Lab
2,4,6-TRINITROTOLUENE No effect Spermatozoa counts/motility M Adult 60 Toxicity Factor Datasets Lab
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE No effect Spleen/brain weight M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA Laboratory
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE Decreased Testes/brain weight M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA Laboratory
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE See citation Histopathology M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA Laboratory
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE No effect Hematological chemistry M Adult 60 U.S. Army Center for Health
Promotion and Preventive Medicine 		Toxicity Factor Datasets Lab USA Laboratory
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