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Gopherus agassizi

Citation:

Studies of the desert tortoise (Gopherus agassizii)

Author(s)
Woodbury, Angus M. and Ross Hardy
Pages
145-200
Year
Volume
18
Exposure Endpoint Type Range Units Sex Life Cycle Stage Location Sample Size Type
Age at Sexual Maturity 12-20 yr Female Adult Beaver Dam Slope, Washington County (elev., 3200-3500 ft) Not Reported Exposure Factor Datasets
Citation:

Estimated density and distribution of the desert tortoise at Fort Irwin, National Training Center and Goldstone Space Communications Complex

Author(s)
Woodman, A. Peter, Stephen M. Juarez, Eugene D. Humphreys, Karen Kirtland and Lawrence F. LaPre
Pages
81-99
Publisher
Desert Tortoise Council
Year
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density range of population densities in % of area (800 mi2) surveyed 20-250 (10% of area); <20 (90% of area) #/mi2 Not Reported Not Reported Fort Irwin National Training Center and Goldstone Space Communication Center, Barstow Not Reported Exposure Factor Datasets
Citation:

Desert tortoise (Mojave population) recovery plan

Author(s)
United States Fish and Wildlife Service
Pages
73
Publisher
United States Fish and Wildlife Service, Region 1
Year
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Type
Home Range review Not Reported Not Reported Not Reported Exposure Factor Datasets
Population Density review Not Reported Not Reported Not Reported Exposure Factor Datasets
Citation:

Desert tortoise (Gopherus agassizii) relocation: implications of social behavior and movements

Author(s)
Berry, Kristin H.
Pages
113-125
Year
Issue
1
Volume
42
Exposure Endpoint Type Endpoint Value Range Units Sex Life Cycle Stage Location Sample Size Type
Home Range 53 39-77 ha Male Not Reported Argus Not Reported Exposure Factor Datasets
Home Range 21 8-46 ha Female Not Reported Argus Not Reported Exposure Factor Datasets
Citation:

Gopherus agassizii (Cooper), Desert Tortoise

Author(s)
Auffenberg, Walter and Richard Franz
Pages
1-2
Year
Volume
212
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Type
Time of Mating/ Laying review Both Male and Female Adult Not Reported Exposure Factor Datasets
Citation:

Young desert tortoise survival: Energy, water and food requirements in the field

Author(s)
Nagy, Kenneth A., David J. Morafka and Rebecca A. Yates
Pages
396-404
Year
Volume
2
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Metabolic Rate FMR (ml CO2/d) = 2.2 g^1.02 field metabolic rate during active seasons as a function of body mass ml CO2/d Not Reported Juvenile Fort Irwin National Training Center, Barstow 4-22/sampling Exposure Factor Datasets
Body Weight - Mean range of mean body weight measured over 2 years during different seasons 34.4 - 54.7 g Not Reported Juvenile Fort Irwin National Training Center, Barstow 4-22/sampling Exposure Factor Datasets
Food Ingestion Rate 160 estimated amount fresh food consumed during first year of life (average body mass = 35 g) g Not Reported Juvenile Fort Irwin National Training Center, Barstow Not Reported Exposure Factor Datasets
Citation:

Size-specific fecundity of the desert tortoise (Gopherus agassizii)

Author(s)
Mueller, James M., Kamila R. Sharp, Katherine K. Zander, Danny L. Rakestraw, Kurt R. Rautenstrauch and Patrick E. Lederle
Pages
313-319
Year
Volume
32
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Clutches or Litters per year 8.2 mean annual fecundity for tortoises with mean carapace length of 247.4 mm 0.5 SE eggs/yr Female Adult Yucca Mountain, Nye County (elev., 1000-1500m) [lat., 36^o51'; long., 116^o25' W] 30 Exposure Factor Datasets
Clutch or Litter Size range of mean clutch size over 3 years in two sample groups 4.4 - 5.2 eggs/clutch Female Adult Yucca Mountain, Nye County (elev., 1000-1500m) [lat., 36^o51'; long., 116^o25' W] 10-25 Exposure Factor Datasets

Actinemys marmorata

Citation:

Feeding ecology of the turtle, Clemmys marmorata

Author(s)
Bury, R. Bruce
Pages
515-521
Year
Issue
4
Volume
20
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition Algae (2.00); Nematomorpha (0.25); Crustacea (2.55); Araneae (0.15); Odonata nymphs (10.15); Ephemeroptera nymphs (4.60); Trichoptera larvae (17.25); Hemiptera nymphs (0.58); Hemiptera adults (0.41); Orthoptera adults (1.60); Coleoptera larvae (7.95); Coleoptera adults (0.48); Diptera larvae (4.45), Diptera adults (0.30); Osteichthyes (0.90); Amphibia (1.20); Other (0.80) volume (cc) of food items in stomach contents determined by water displacement cc Not Reported Juvenile Hayfork Creek (elev., 750m) 30 Exposure Factor Datasets
Dietary Composition Algae (18.00); Other vegetation (0.30); Nematomorpha (0.05); Crustacea (10.10); Araneae (0.15); Odonata nymphs (4.05); Ephemeroptera nymphs (0.15); Trichoptera larvae (19.80); Hemiptera nymphs (0.40); Hemiptera adults (0.30); Orthoptera adults (0.55); Coleoptera larvae (5.15); Coleoptera adults (0.30); Diptera larvae (0.66), Diptera adults (0.10); Osteichthyes (0.20); Amphibia (4.05); Other (1.35) volume (cc) of food items in stomach contents determined by water displacement cc Female Adult Hayfork Creek (elev., 750m) 27 Exposure Factor Datasets
Dietary Composition Algae (4.00); Other vegetation (0.50); Crustacea (5.55); Odonata nymphs (5.00); Ephemeroptera nymphs (2.91); Trichoptera larvae (7.40); Hemiptera nymphs (0.10); Hemiptera adults (0.10); Orthoptera adults (0.20); Coleoptera larvae (0.75); Coleoptera adults (0.10); Diptera larvae (9.15); Osteichthyes (10.90); Amphibia (7.80); Other (0.50) volume (cc) of food items in stomach contents determined by water displacement cc Male Adult Hayfork Creek (elev., 750m) 20 Exposure Factor Datasets
Citation:

Notes on reproduction in Clemmys marmorata

Author(s)
Feldman, Mark
Pages
10-11
Year
Issue
1
Volume
13
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size 4-9 eggs/clutch Female Adult Umpqua River, Roseburg, Douglas County 4 Exposure Factor Datasets
Duration of Incubation or Gestation time from egg to hatching at 25-30C 73 - 80 d Not Reported Embryo 13 Exposure Factor Datasets
Citation:

Clemmys marmorata (western pond turtle) size

Author(s)
McKeown, Sean and Dan C. Holland
Pages
59
Year
Issue
2
Volume
16
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 854 maximum reported body weight g Male Adult largest turtle found near Huron 450 Exposure Factor Datasets
Citation:

Nesting behavior and movements of western pond turtles, Clemmys marmorata

Author(s)
Rathbun, Galen B., Nancy Siepel and Dan Holland
Pages
319-324
Year
Issue
3
Volume
37
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Home Range median daily movement 25 - 37.5 m Not Reported Adult Arroyo Laguna-Oak Knoll Creek, San Simeon Point 4 Exposure Factor Datasets
Home Range mean daily movement 28.0 - 87.1 m Not Reported Adult Arroyo Laguna-Oak Knoll Creek, San Simeon Point 4 Exposure Factor Datasets
Citation:

Habits and home range of the Pacific pond turtle, Clemmys marmorata, in a stream community

Author(s)
Bury, Richard Bruce
Pages
205
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density 214 density also reported as 333-347 turtles/mile of stream or 85 turtles/acre #/ha Both Male and Female Both Adults and Juveniles Hayfork Creek (elev., 610m) 578 marked turtles Exposure Factor Datasets
Home Range 976 "distance between extremes" or maximum range on a linear scale 225-2425 m Male Adult Hayfork Creek (elev., 610m) 19 Exposure Factor Datasets
Home Range 248 "distance between extremes" or maximum range on a linear scale 0-750 m Female Adult Hayfork Creek (elev., 610m) 23 Exposure Factor Datasets
Home Range 363 "distance between extremes" or maximum range on a linear scale 0-1150 m Not Reported Juvenile Hayfork Creek (elev., 610m) 18 Exposure Factor Datasets
Home Range 400 average distance moved along stream between relocations 200-5625 m Male Adult Hayfork Creek (elev., 610m) 19 Exposure Factor Datasets
Home Range 104 average distance moved along stream between relocations 0-2100 m Female Adult Hayfork Creek (elev., 610m) 23 Exposure Factor Datasets
Home Range 133 average distance moved along stream between relocations 0 - 3175 m Not Reported Juvenile Hayfork Creek (elev., 610m) 18 Exposure Factor Datasets
Time of Torpor or Hibernation Oct. - May Both Male and Female Both Adults and Juveniles Hayfork Creek (elev., 610m) 578 marked turtles Exposure Factor Datasets
Citation:

Notes on the range and life history of the Pacific fresh-water turtle, Clemmys marmorata

Author(s)
Storer, Tracy I.
Pages
429-441
Year
Issue
5
Volume
32
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Time of Torpor or Hibernation Sept. - Mar. Not Reported Not Reported Not Reported Exposure Factor Datasets
Clutch or Litter Size 3-12 eggs/clutch Female Adult 7 Exposure Factor Datasets
Time of Mating/ Laying June - Aug. time of egg deposition Female Adult Not Reported Exposure Factor Datasets
Body Weight - Mean 1 lb 6 oz - 2 lb 1 oz lb, oz Both Male and Female Adult Sacramento and San Joaquin Valleys 9 Exposure Factor Datasets
Citation:

Reproductive parameters of Pacific pond turtles Clemmys marmorata in the streams on the coast of central California

Author(s)
Scott, Norman J., Jr., Galen B. Rathbun, Thomas G. Murphey and Margaret B. Harker
Publisher
American Society of Ichthyologists and Herpetologists
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size 5.69 average clutch size eggs/clutch Female Adult Arroyo Laguna, Little Pico Creek, Pico Creek and San Simeon Creek 81 clutches Exposure Factor Datasets
Clutches or Litters per year range of average number of clutches/yr 1.0 - 1.7 clutches/yr Female Adult Arroyo Laguna, Little Pico Creek, Pico Creek and San Simeon Creek 81 clutches Exposure Factor Datasets
Citation:

Comparative demography of Clemmys marmorata populations in the Trinity River of California in the context of dam-induced alterations

Author(s)
Reese, Devin A. and Hartwell H. Welsh, Jr
Pages
505-515
Year
Volume
32
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density range in density estimates at 2 locations 13 - 19 #/ha Both Male and Female Both Adults and Juveniles Trinity River Not Reported Exposure Factor Datasets

Chelonia mydas

Citation:
Chemical Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Tox Exposure Toxicity Endpoint Type Tox Exposure Technique Type
COPPER (elemental) 2.26 ± 0.10 µg/g Blood concentration Both Male and Female Juvenile Bahia Salado 7 NR TOX-EXP IND - accumulation Environmental contamination Toxicity Factor Datasets
LEAD (elemental) 1.11 ± 0.06 µg/g Blood concentration Both Male and Female Juvenile Bahia Salado 7 NR TOX-EXP IND - accumulation Environmental contamination Toxicity Factor Datasets
COPPER (elemental) Review Blood concentration Antofogasta region NR TOX-EXP IND - accumulation Environmental contamination Toxicity Factor Datasets
LEAD (elemental) Review Blood concentration Antofogasta region NR TOX-EXP IND - accumulation Environmental contamination Toxicity Factor Datasets
COPPER (elemental) Review Blood concentration San Diego Bay NR TOX-EXP IND - accumulation Environmental contamination Toxicity Factor Datasets
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