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Xantusia riversiana

Citation:

Ecology of the island night lizard, Xantusia riversiana, on Santa Barbara Island, California

Author(s)
Fellers, Gary M. and Charles A. Drost
Pages
28-78
Year
Volume
5
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Growth Rate 0.046 increase in snout-vent length (40-50 mm size class) 0.003 SE mm/d Not Reported Santa Barbara Island Not Reported Exposure Factor Datasets
Growth Rate 0.040 increase in snout-vent length (50-60 mm size class) 0.003 SE mm/d Not Reported Santa Barbara Island Not Reported Exposure Factor Datasets
Growth Rate 0.030 increase in snout-vent length (60-70 mm size class) 0.002 SE mm/d Not Reported Santa Barbara Island Not Reported Exposure Factor Datasets
Growth Rate 0.018 increase in snout-vent length (70-80 mm size class) 0.002 SE mm/d Not Reported Santa Barbara Island Not Reported Exposure Factor Datasets
Growth Rate 0.011 increase in snout-vent length (80-90 mm size class) 0.002 SE mm/d Not Reported Santa Barbara Island Not Reported Exposure Factor Datasets
Growth Rate 0.005 increase in snout-vent length (90-100 mm size class) 0.004 SE mm/d Not Reported Santa Barbara Island Not Reported Exposure Factor Datasets
Home Range 17.2 6.6 - 29.0 m2 Both Male and Female Adult Santa Barbara Island 6 Exposure Factor Datasets
Population Density 1665 - 3213 #/ha Not Reported Not Reported Santa Barbara Island Not Reported Exposure Factor Datasets
Dietary Composition Animals, Araneida (15.4%); Crustacea (Isopoda) (50%); Hemiptera (7.7%); Homoptera (15.4%); Coleoptera (11.5%); Lepidoptera (11.5%); Diptera (11.5%); Hymenoptera (7.7%); Other insecta (23.1%); Other arthropoda (15.4%); Vertebrata (3.8%); Plants, Aizoaceae (3.8%); Chenopodiaceae (15.4%); Solanaceae (7.7%); Asteraceae (3.8%); Other plants (38.5%) % of samples with item in stomach contents % Not Reported Not Reported Santa Barbara Island 26 Exposure Factor Datasets
Citation:

Reproduction in the island night lizard, Xantusia riversiana

Author(s)
Goldberg, Stephen R. and Robert L. Bezy
Pages
350-360
Year
Issue
4
Volume
30
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Body Weight - Mean 1.01 g Not Reported Hatchling San Clemente, San Nicolas and Santa Barbara Islands 15 Exposure Factor Datasets
Clutch or Litter Size range of average number of young produced/female at 3 sites 3.50 - 4.55 young/female Female Adult San Clemente, San Nicolas and Santa Barbara Islands 2-25 Exposure Factor Datasets
Age at Sexual Maturity 3 - 4 yr Both Male and Female Adult San Clemente, San Nicolas and Santa Barbara Islands Not Reported Exposure Factor Datasets
Duration of Incubation or Gestation 14 wks Not Reported Embryo San Clemente, San Nicolas and Santa Barbara Islands Not Reported Exposure Factor Datasets
Time of Hatching or Parturition Sept. Not Reported Hatchling San Clemente, San Nicolas and Santa Barbara Islands Not Reported Exposure Factor Datasets
Time of Mating/ Laying Mar. - June time of breeding Both Male and Female Adult San Clemente, San Nicolas and Santa Barbara Islands Not Reported Exposure Factor Datasets
Citation:

Food habits of the island night lizard, Xantusia riversiana reticulata, from San Clemente Island

Author(s)
Schwenkmeyer, Richard C.
Pages
1-3
Year
Volume
38
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition Animal matter (68.8%), includes Arachnids (15.9%); Insects (50.4%); Crustaceans (2.6%); Plant matter (30.9%) % of total content of stomachs % Not Reported Not Reported San Clemente Island 18 Exposure Factor Datasets
Citation:

Ecology and energetics of the island night lizard, Xantusia riversiana, on San Clemente Island, California

Author(s)
Mautz, William J.
Pages
417-428
Publisher
Santa Barbara Museum of Natural History
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density 1458 103 SE #/ha Both Male and Female Both Adults and Juveniles San Clemente Island 120 marked animals Exposure Factor Datasets
Growth Rate 0.05 increase in snout-vent length during 1st yr mm/d Both Male and Female San Clemente Island 14 Exposure Factor Datasets
Growth Rate 0.03 increase in snout-vent length during 2nd yr mm/d Both Male and Female San Clemente Island 12 Exposure Factor Datasets
Longevity oldest recorded individual 12 - 13 yr Both Male and Female Adult San Clemente Island Not Reported Exposure Factor Datasets
Body Weight - Mean 11.6 - 14.8 g Both Male and Female Adult San Clemente Island Not Reported Exposure Factor Datasets
Body Weight - Mean 1.2 - 2.7 g Both Male and Female Neonate San Clemente Island Not Reported Exposure Factor Datasets
Citation:

The number of young of Xantusia

Author(s)
Brattstrom, Bayard H.
Pages
143-144
Year
Volume
7
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size determined by embryo count 6 - 9 young/female Female Adult San Nicolas Island 4 Exposure Factor Datasets
Clutch or Litter Size determined by embryo count 4 - 6 young/female Female Adult San Clemente Island 5 Exposure Factor Datasets
Citation:

The number of young found in the Island Night lizard

Author(s)
Amrein, Yost U. and Margaret B. Amrein
Pages
180
Year
Volume
1951
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size determined from fetus count 3 - 4 young/female Female Adult San Nicolas Island 2 Exposure Factor Datasets
Citation:

The metabolism of reclusive lizards, the Xantusiidae

Author(s)
Mautz, William J.
Pages
577-584
Year
Volume
1979
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Type
Metabolic Rate 0.025 (15C); 0.035 (20C); 0.070 (25C); 0.105 (30C); 0.160 (35C) mean oxygen consumption measured at various temperatures (15-35C) during the photophase of the diel cycle cc O2/g/hr Not Reported Adult 10-29/temp. group Exposure Factor Datasets
Metabolic Rate 0.024 (15C); 0.036 (20C); 0.058 (25C); 0.081 (30C); 0.146 (35C) mean oxygen consumption measured at various temperatures (15-35C) during the scotophase of the diel cycle cc O2/g/hr Not Reported Adult 10-29/temp. group Exposure Factor Datasets

Uta stansburiana

Citation:

Hormonal and physiological control of clutch size, egg size and egg shape in side-blotched lizards (Uta stansburiana): constraints on the evolution of lizard life histories

Author(s)
Sinervo, Barry and Paul Licht
Pages
252-264
Year
Volume
257
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size 4.6 average clutch size eggs/female Female Adult Corral Hollow Road 16 Exposure Factor Datasets
Clutch or Litter Size 4.3 average clutch size eggs/female Female Adult Del Puerto Canyon Road 27 Exposure Factor Datasets
Clutch or Litter Size 6.3 average clutch size eggs/female Female Adult Los Banos Creek, Billy Wright Road 35 Exposure Factor Datasets
Body Weight - Mean 0.42 average egg weight g Not Reported Embryo Corral Hollow Road 12 Exposure Factor Datasets
Body Weight - Mean 0.38 average egg weight g Not Reported Embryo Del Puerto Canyon Road 27 Exposure Factor Datasets
Body Weight - Mean 0.35 average egg weight g Not Reported Embryo Los Banos Creek, Billy Wright Road 35 Exposure Factor Datasets
Citation:

The demography of the lizard, Uta stansburiana Baird and Girard, in southern Nevada

Author(s)
Turner, Frederick B., Gerard A. Hoddenbach, Philip A. Medica and Joseph R. Lannom
Pages
505-519
Year
Volume
39
Exposure Endpoint Type Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Population Density range of 3 yearly averages for 4 study sites 42.5 - 80.3 #/ha Both Male and Female Both Adults and Juveniles Rock Valley, Nye County Not Reported Exposure Factor Datasets
Clutch or Litter Size range of average clutch sizes on 8 dates 0.46 - 3.20 eggs/clutch Female Adult Not Reported Exposure Factor Datasets
Clutch or Litter Size range of average clutch sizes on 8 dates 0.60 - 4.50 eggs/clutch Female Adult Not Reported Exposure Factor Datasets

Uta stansburiana ssp. stejnegeri

Citation:

Population structure and reproduction in the lizard Uta stansburiana stejnegeri

Author(s)
Tinkle, Donald W.
Pages
206-234
Year
Volume
66
Exposure Endpoint Type Endpoint Value Endpoint Description Range Units Sex Life Cycle Stage Location Sample Size Type
Age at Sexual Maturity 10 - 12 mo Both Male and Female Adult Palo Duro Canyon, Armstrong County (elev., 2000-3600 ft); Kermit , Winkler County and Monahans, Ward County (elev., 2800 ft) 1907 Exposure Factor Datasets
Time of Mating/ Laying Apr. - June time of breeding Both Male and Female Adult Palo Duro Canyon, Armstrong County (elev., 2000-3600 ft); Kermit , Winkler County and Monahans, Ward County (elev., 2800 ft) 1907 Exposure Factor Datasets
Clutch or Litter Size 4 eggs/female Female Adult Palo Duro Canyon, Armstrong County (elev., 2000-3600 ft); Kermit , Winkler County and Monahans, Ward County (elev., 2800 ft) Not Reported Exposure Factor Datasets
Clutches or Litters per year 3 clutches/yr Female Adult Palo Duro Canyon, Armstrong County (elev., 2000-3600 ft); Kermit , Winkler County and Monahans, Ward County (elev., 2800 ft) Not Reported Exposure Factor Datasets
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