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California Ground Squirrel (Spermophilus beecheyi)

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 Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density 7 #/acre Both Male and Female Both Adults and Juveniles Not Reported Calaveras Reservoir Exposure Factor Datasets Alameda, Santa Clara
Clutches or Litters per year 1 litters/yr Female Adult Not Reported Calaveras Reservoir Exposure Factor Datasets Alameda, Santa Clara
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 Sample Size Location Type California Counties
Age at Fledging, Metamorphosis, Weaning 5-6 wks Not Reported Juvenile Not Reported University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz
Time of Torpor or Hibernation May/June - Oct. months of estivation Male Adult 144 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz
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 Description Units Sex Life Cycle Stage Sample Size Location Type
Survival/ Mortality % tagged young surviving to following year to become breeding adults; range over 3 yrs % Both Male and Female Juvenile 321 - 339/yr San Joaquin Experimental Range 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 Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Body Weight - Mean 373 referred to as "young females" g Female Juvenile 115 Davis and Dixon Exposure Factor Datasets Solano, Yolo 150.5
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 Value Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Mating/ Laying Feb. - Apr. Both Male and Female Adult Not Reported Coho creek Exposure Factor Datasets Tulare

California Sea Lion (Zalophus californianus)

Citation:

Milk and energy intakes of suckling California Sea Lions (Z. californicus) pups in relation to sex, growth and predicted maintenance requirements

Author(s)
Oftedal, Olav T., Sara J. Iverson and Daryl J. Boness
Pages
560-575
Year
Issue
5
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error
Body Fat (total or %) 19.3 % Female Pup 1 San Nicolas Island [lat., 33^oW; long., 119^oW] Exposure Factor Datasets 3 mo
Water Ingestion Rate 651 total daily water intake derived from sum of milk water intake and metabolic water production g/d Male Pup 24 San Nicolas Island [lat., 33^oW; long., 119^oW] Exposure Factor Datasets 2 mo 27.9 SE
Citation:

The effect of El Nino on pup development in the California sea lion (Zalophus californianus); I. Early postnatal growth

Author(s)
Boness, D. J., O. T. Oftedal,and K. A. Ono
Pages
173-179
Publisher
Springer Verlag
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error
Growth Rate 0.130 2 years post el nino (1985); 0-2 months kg/d Not Reported Pup 38 San Nicolas Island Exposure Factor Datasets 0-2 months 0.006 SE
Citation:

Population abundance, pup mortality, and copulation frequency in the California sea lion in relation to the 1983 El Nino on San Nicolas Island

Author(s)
Francis, J. M. and C. B. Heath
Pages
271-288
Publisher
Springer Verlag
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Time of Mating/ Laying May - Aug. time of breeding Both Male and Female Adult Not Reported San Nicolas Island Exposure Factor Datasets
Clutches or Litters per year range of fecundity over 4 yrs; peak pup/peak female counts pups/female/yr Female Adult 4360-6952 pups San Nicolas Island Exposure Factor Datasets
Citation:

The effect of El Nino on pup development in the California sea lion (Zalophus californianus) II: Milk intake

Author(s)
Iverson, S. J., O.T. Oftedal and D.J. Boness
Pages
180-184
Publisher
Springer Verlag
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error
Growth Rate 120.0 daily weight gain during 1st mo of life g/d Female Pup 7 San Nicolas Island Exposure Factor Datasets 5-30 d 8.16 SE

California Clapper Rail (Rallus longirostris ssp. obsoletus)

Citation:

A study of the California clapper rail

Author(s)
Zucca, Joseph J.
Pages
135-153
Year
Volume
12
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 7.22 mean clutch size Not Reported Not Reported 27 nests Dumbarton Bridge Marsh Exposure Factor Datasets San Francisco
Duration of Incubation or Gestation estimated incubation period in field d Not Reported Not Reported 3 nests Dumbarton Bridge Marsh Exposure Factor Datasets San Francisco
Citation:

Breeding biology of the California clapper rail in South San Francisco Bay

Author(s)
Harvey, Thomas E.
Pages
98-104
Year
Volume
24
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Hatching Success 56% proportion of nests in which at least one egg hatched Both Male and Female Hatchling 50 nests south San Francisco Bay Exposure Factor Datasets Alameda

Willow Flycatcher (Empidonax traillii)

Citation:

A preliminary report on the biology of the willow flycatcher in the central Sierra Nevada

Author(s)
Stafford, Michael D. and Bradley E. Valentine
Pages
66-77
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Fledging or Weaning Rate 50% proportion of nestlings known or believed to have fledged Both Male and Female Fledgling 8 nests Sierra National Forest Exposure Factor Datasets Fresno
Citation:

Ecology of a Sierra Nevada population of willow flycatchers

Author(s)
Flett, Mary Anne and Susan D. Sanders
Pages
37-42
Year
Volume
18
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Territory Size 3000 average territory size of paired males based on observed perch locations m^2 Male Adult 8 territories Perazzo Meadows, Lacey Valley (32 km NW of Truckee) Exposure Factor Datasets Sierra 2000 SD

California Vole (Microtus californicus)

Citation:

Viability of large- and small- sized adults in fluctuating vole populations

Author(s)
Boonstra, Rudy and Charles J. Krebs
Pages
567-573
Year
Issue
3
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type Condition
Survival/ Mortality .574 minimum survival rate per 2 wks Male Adult 8 breeding seasons (6 populations pooled) Berkeley Exposure Factor Datasets breeding season
Survival/ Mortality .635 minimum survival rate per 2 wks Male Adult 8 breeding seasons (6 populations pooled) Berkeley Exposure Factor Datasets breeding season
Citation:

Territoriality and mating system of California voles

Author(s)
Ostfeld, Richard S.
Pages
691-706
Year
Volume
55
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density range in mean density for 2 yr #/ha Both Male and Female Adult Richmond Field Station Exposure Factor Datasets Contra Costa
Home Range range in home range (minimum area probability, 0.95) over 2 yrs m2 Female Adult 7/yr Richmond Field Station Exposure Factor Datasets Contra Costa
Citation:

Condition and diet of cycling populations of the California Vole, Microtus californicus

Author(s)
Batzli, George O. and Frank A Pitelka
Pages
141-163
Year
Issue
1
Volume
52
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Type California Counties
Body Fat (total or %) see citation figure of seasonal changes in body fat content g/g dry lean wt Both Male and Female Both Adults and Juveniles Richmond Field Station and Russel Reservation Exposure Factor Datasets Contra Costa
Citation:

Extra-large body size in California voles: causes and fitness consequences

Author(s)
Lidicker, William Z., and Richard S. Ostfield
Pages
108-121
Year
Volume
61
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Age at Sexual Maturity 17 d Female Adult Not Reported Brooks Island, San Francisco Bay Exposure Factor Datasets Contra Costa

Common Garter Snake (Thamnophis sirtalis)

Citation:

The feeding habits of California garter snakes

Author(s)
Fitch, Henry S.
Pages
1-32
Year
Volume
27
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Dietary Composition Slug (1.4%); Earthworm (23.6%); Frog, Rana (6.9%); Toad, Bufo and Scaphiopus (30.5%); Tree Toad (20.8%); Leech (4.0%); Tadpole (10%); Minnow (1.4%); Unidentified fish (1.4%) % of total recorded food items % Not Reported Not Reported 48 Exposure Factor Datasets
Citation:

Garter snake diets in a fluctuating environment: A seven-year study

Author(s)
Kephart, Donald G. and Stevan J. Arnold
Pages
1232-1236
Year
Volume
63
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition Anurans (67%); Fish (11%); Leeches (22%) % of stomachs containing prey item % Not Reported Not Reported 36 Eagle Lake (elev., 1555m) [lat., 40^o33'24"N; long., 120^o47'5" W] Exposure Factor Datasets Lassen

San Pablo Song Sparrow (Melospiza melodia ssp. samuelis)

Citation:

Population structure in salt marsh song sparrows part I. Environment and annual cycle

Author(s)
Johnston, Richard F.
Pages
24-44
Year
Volume
58
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Sample Size Location Type California Counties Error
Clutch or Litter Size 3.2 seasonal mean eggs Not Reported 157 nests San Pablo Marsh Exposure Factor Datasets Contra Costa 0.6 SD

Merriam's Kangaroo Rat (Dipodomys merriami)

Citation:

Consumption of herbaceaous vegetation and water during reproduction and development of Merriam's Kangaroo rat, Dipodomys merriami

Author(s)
Soholt, Lars F.
Pages
445-457
Year
Issue
2
Volume
98
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean see citation figure of seasonal changes in weight g Both Male and Female Not Reported Not Reported Indian Cove, Joshua Tree National Monument Exposure Factor Datasets San Bernardino
Citation:

Seasonal water and energy metabolism of the desert dwelling kangaroo rat (Dipodomys merriami)

Author(s)
Nagy, Kenneth A. and M.J. Gruchacz
Pages
1461-1478
Year
Issue
6
Volume
67
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Population Density 17.5 #/ha Not Reported Not Reported 5 Kelso Sand Dunes (elev., 830-840 m) [lat., 34^o53'30"N, long., 115^o40'20"W] Exposure Factor Datasets San Bernardino 1.6 SD
Citation:

Consumption of primary production by a population of kangaroo rats (Dipodomys merriami) in the Mojave desert

Author(s)
Soholt, Lars F.
Pages
357-376
Year
Volume
43
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean range of 4 seasonal means g Not Reported Not Reported 20-42/season Indian Cove, Joshua Tree National Monument Exposure Factor Datasets San Bernardino
Citation:

Range use patterns and spatial relationships of Merriams's kangaroo rats (Dipodomys merriami)

Author(s)
Behrends, Philip, Martin Daly and Margo I. Wilson
Pages
187-209
Year
Volume
96
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Home Range range of mean home range in 3 study periods estimated by radiotelemetry ha Female Adult 7-10 Boyde Deep Canyon Reserve (elev., 300m) Exposure Factor Datasets Riverside

California Least Tern (Sterna antillarum ssp. browni)

Citation:

Breeding biology of the California least tern

Author(s)
Massey, Barbara W.
Pages
1-24
Year
Volume
72
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Hatching Success range of hatching success, 2 years % Not Reported Hatchling 53-157 eggs/year Sunset Aquatic Park, Huntington Beach Exposure Factor Datasets Orange
Body Weight - Mean 5.93 mean body weight of day 0 chicks g Not Reported Hatchling 77 birds Sunset Aquatic Park, Huntington Beach Exposure Factor Datasets Orange 0.09 2SE
Citation:

Least tern foraging ecology at three major California breeding colonies

Author(s)
Atwood, Jonathon L. and Dennis E. Minsky
Pages
57-72
Year
Volume
14
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Migration or Dispersal late Jul timing of post-fledging dispersal Not Reported Both Adults and Juveniles Not Reported Santa Margarita River Exposure Factor Datasets Orange
Citation:

Status of the least tern at Camp Pendleton, California

Author(s)
Swickard, Deane K.
Pages
49-58
Year
Volume
3
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Survival/ Mortality estimated annual mortality rate for two years based on juvenile censuses % Not Reported Juvenile 92-195 birds counted Santa Margarita River at Camp Pendleton Exposure Factor Datasets Orange

Sea Otter (Enhydra lutris)

Citation:

Maternal behavior in the California sea otter

Author(s)
Sandegren, Finn E., Ellen W. Chu and Judson E. Vandevere
Pages
668-679
Year
Volume
54
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Hatching or Parturition December to February peak period of birth Female Adult Not Reported Point Lobos State Reserve to Lucia Exposure Factor Datasets Monterey
Citation:

Autumn movement and home range of sea otters in California

Author(s)
Ribic, Christine A.
Pages
795-801
Year
Issue
3
Volume
46
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Condition Error
Home Range 4.6 km^2 Male Adult 5 Santa Cruz to San Luis Obispo Exposure Factor Datasets Residents 0.8 SD

Salt-marsh Harvest Mouse (Reithrodontomys raviventris)

Citation:

A population study of the harvest mice (Reithrodontomys raviventris Dixon) in the Palo Alto Baylands Salt Marsh

Author(s)
Wondolleck, John T., William Zolan and Gary L. Stevens
Pages
52-64
Year
Volume
34
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density range for 4 habitat types #/1000 m2 Not Reported Not Reported 3 - 128 animals/type Palo Alto Baylands Exposure Factor Datasets Santa Clara
Survival/ Mortality 2/19 2 out of 19 juveniles reached adult size survival ratio Not Reported Juvenile Not Reported Palo Alto Baylands Exposure Factor Datasets Santa Clara

Little Pocket Mouse (Perognathus longimembris)

Citation:

Seasonal reproductive patterns in five coexisting California desert rodent species

Author(s)
Kenagy, G. J. and George A. Bartholomew
Pages
371-397
Year
Issue
4
Volume
55
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
Body Weight - Mean 0.5 g Not Reported Neonate Not Reported Owens Valley, Big Pine (lat., 37^o11'N) Exposure Factor Datasets at birth Inyo

Stephens' Kangaroo Rat (Dipodomys stephensi)

Citation:

Distances moved by Stephens' kangaroo rat (Dipodomys stephensi Merriam) and implications for conservation

Author(s)
Price, Mary V., Patrick A. Kelly and Ross L. Goldingay
Pages
929-939
Year
Volume
75
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Home Range range of median maximum distance moved based on monthly live trapping capture data at 2 sites m Male Adult 97 - 121 Motte Rock Ecological Reserve [lat., 33^o53'N; long., 117^o6'W] and San Jacinto Wildlife Area [lat., 33^o51'N; long., 116^o54'W] Exposure Factor Datasets Riverside
Citation:

Niche relationships of Dipodomys agilis and D. stephensi: two sympatric kangaroo rats of similar size

Author(s)
Price, Mary V., William S. Longland and Ross L. Goldingay
Pages
172-186
Year
Volume
126
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean 62.2 g Not Reported Not Reported 40 Exposure Factor Datasets Riverside

Western Meadowlark (Sturnella neglecta)

Citation:

A determination of the economic status of the western meadowlark (Sturnella neglecta) in California

Author(s)
Bryant, Harold C.
Pages
377-510
Year
Issue
14
Volume
11
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Duration of Incubation or Gestation observed range of incubation periods d Not Reported Embryo Not Reported Exposure Factor Datasets

Western Snowy Plover (Charadrius nivosus ssp. nivosus formerly Charadrius alexandrinus ssp. nivosus)

Citation:

Spacing out at Mono Lake: Breeding success, nest density, and predation in the snowy plover

Author(s)
Page, Gary W., Lynne E. Stenzel, David W. Winkler and Christopher W. Swarth
Pages
13-24
Year
Volume
100
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutches or Litters per year 2 number of clutches laid by 30 out of 81 total nesting females clutches/yr Female Adult 81 nesting females Mono Lake (elev. 1,940 m) Exposure Factor Datasets Mono
Citation:

Aspects of the occurrence of shorebirds on a central California estuary

Author(s)
Page, Gary W., Lynne E. Stenzel and Claire M. Wolfe
Pages
15-32
Year
Volume
2
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density 1.9 (fall), 3.4 (winter), 1.1 (spring) mean population density birds/ha Not Reported Not Reported 5 seasons censused Bolinas Lagoon, Point Reyes National Seashore Exposure Factor Datasets Marin

Least Bell's Vireo (Vireo bellii ssp. pusillus)

Citation:

Endangered status and strategies for conservation of the least Bell's vireo (Vireo bellii pusillus) in California

Author(s)
Franzreb, Kathleen E.
Pages
43-49
Year
Volume
18
Exposure Endpoint Type Endpoint Value Endpoint Description Life Cycle Stage Sample Size Location Type
Fledging or Weaning Rate review reproductive success data Adult Not Reported Exposure Factor Datasets

Coyote (Canis latrans)

Citation:

Coyote food habits in Sagehen Creek basin, northeastern California

Author(s)
Hawthorne, Vernon M.
Pages
4-12
Year
Volume
58
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Dietary Composition mule deer (35.2%); cattle (11.5%); sheep (3.7%); coyote (2.9%); Microtus sp. (47.7%); Thomomys sp. (6.8%); Lepus americanus (4.4%); Marmota flaviventris (3.9%); Citellus lateralis (3.9%); Erethizon dorsatum (3.7%); song birds (3.7%); other insects (4.7%); pine and fir needles (19%); grass (17.6%); other vegetable matter (8.7%) % of scats containing food item % Both Male and Female Adult 384 scats Sagehen Creek Field Station, Truckee Exposure Factor Datasets
Citation:

Diets of three predators at Concord Naval Weapons Station, Contra Costa County, California

Author(s)
Kuenzi, Amy J., Marylisa Lynch, Dirk Van Vuren, Ivette Loredo and Michael L. Morrison
Pages
64-67
Year
Volume
79
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition Mammals: Spermophilus beecheyi (43%); Microtus californicus (30%); Peromyscus maniculatus and Reithrodontomys megalotis (43%); Lepus californicus (17%); Thomomys bottae (4%); Insects (13%); Seeds and berries (13%); Herbaceous vegetation (17%); Wheat (Avena spp.) (13%) % of scats containing each prey item % Not Reported Not Reported 23 Concord Naval Weapons Station Exposure Factor Datasets Contra Costa
Citation:

Diet of Coyotes at Lemoore Naval Air Station

Author(s)
Kuenzi, Amy J.
Pages
9-11
Year
Volume
33
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition Seeds (54.8%); Fruit (56.9%); Insects (44.1%); California voles (12.9%); Lagomorphs (10.8%); Cricetine rodents (62.4%); Birds (5.4%); Califorina ground squirrels (4.3%); Gophers (2.2%); Amphibians/Reptiles (2.2%) overall % frequency of occurrence of prey items in scats % Not Reported Not Reported 93 scats Lemoore Naval Air Station Exposure Factor Datasets Fresno, Kings

San Clemente Loggerhead Shrike (Lanius ludovicianus ssp. mearnsi)

Citation:

Opportunistic foraging behavior of loggerhead shrikes

Author(s)
Scott, Thomas A. and Michael L. Morrison
Pages
186-193
Year
Volume
6
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Dietary Composition Mollusca (0.00), Crustacea (0.27), Arachnida (0.14), Insecta (14.77), Reptilia (53.29), Mammalia (27.66), Aves (3.86) percent of total prey found in pellets by biomass % Not Reported Not Reported 1238 pellets San Clemente Island Exposure Factor Datasets

Song Sparrow (Melospiza melodia)

Citation:

Population structure in salt marsh song sparrows Part II: Density, Age Structure, and Maintanance

Author(s)
Johnston, Richard F.
Pages
254-272
Year
Volume
58
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 3.14 eggs/nest Both Male and Female Adult Not Reported San Pablo Marsh; San Francisco Bay Exposure Factor Datasets Contra Costa

Deer Mouse (Peromyscus maniculatus)

Citation:

Dispersion patterns of mice in California annual grassland

Author(s)
Batzli, George O.
Pages
239-250
Year
Volume
49
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density see citation figure of seasonal changes in density #/acre Not Reported Not Reported Not Reported Grass Valley Regional Park Exposure Factor Datasets Alameda
Citation:

Microhabitat segregation in two desert rodent species: the relation of prey availability to diet

Author(s)
Harris, John H.
Pages
417-421
Year
Volume
68
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition ARTHROPODS (72-90% total) - Lepidoptera larvae (5-11); Coleoptera (7-8); June Beetles (0-3); Jerusalum crickets (0-19); Ants (0); Orthoptera (1); Spiders (1-2); Lygaeid bugs (56-83); Scorpions (0); Solfugids (0-1); Diptera (0-1); GREEN VEGETATION (0-3% total);SEEDS (10-25% total). % weight of prey in fecal pellets; range of mean values over 2 yrs % Both Male and Female Both Adults and Juveniles 20-24 Mono Lake (elev., 2000m) Exposure Factor Datasets Mono
Citation:

Reproduction of deer mice (Peromyscus maniculatus and P. boylei) in the Sierra Nevada, California

Author(s)
Jameson, Jr., E.W.
Pages
44-58
Year
Issue
1
Volume
34
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 4.6 based on # of implanted embryos; monthly means (Mar. - Nov.) ranged from 4.0 - 5.7 #/litter Female Adult 96 western slope of Sierra Nevada (elev., 3500-5000 ft.) Exposure Factor Datasets Plumas 0.11 SE

Mourning Dove (Zenaida macroura)

Citation:

An eleven-year summary of mourning dove observations in the west

Author(s)
McClure, H. Elliott
Pages
335-346
Year
Volume
15
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Nesting Mar-Sep period from beginning to end of nesting Both Male and Female Adult 335 nest attempts near Bakersfield Exposure Factor Datasets Kern
Citation:

Movements of banded mourning doves near Turlock, California

Author(s)
Channing, Edward
Pages
23-35
Year
Issue
1
Volume
65
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Migration or Dispersal summer time of southward migration Both Male and Female Both Adults and Juveniles Not Reported Turlock area Exposure Factor Datasets Merced, Stanislaus

Ensatina (Ensatina eschscholtzii)

Citation:

Natural history of the salamanders of the plethodontid genus Ensatina

Author(s)
Stebbins, Robert C.
Pages
47-124
Year
Volume
54
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Hatching or Parturition fall - early winter Not Reported Embryo Not Reported Pinehurst Madrone Grove Park Exposure Factor Datasets Contra Costa

Desert Tortoise (Gopherus agassizi)

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 Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
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 4-22/sampling Fort Irwin National Training Center, Barstow Exposure Factor Datasets < 2 yr San Bernardino
Citation:

Aspects of the ecology of the desert tortoise, Gopherus agassizi, in Joshua Tree National Monument, Pinto Basin, Riverside County, California

Author(s)
Barrow, John
Pages
105-131
Publisher
Desert Tortoise Council
Year
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean maximum carapace length range = 169-279 mm kg Male Adult 19 South West Pinto Basin, Joshua Tree National Monument Exposure Factor Datasets Riverside
Citation:

Population ecology of the desert tortoise at Goffs, San Bernadino County, California

Author(s)
Turner, Frederick B., Kristin H. Berry, Betty L. Burge, Page Hayden, Lori Nicholson and Jan Bickett
Pages
68-81
Publisher
Desert Tortoise Council
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 4.17 estimated by x-ray examination eggs/clutch Female Adult 35 clutches Fenner Valley, Goffs (elev., 732m) Exposure Factor Datasets San Bernardino 0.22SE

American Kestrel (Falco sparverius)

Citation:

Behavior and ecology of the American Kestrel in the Sierra Nevada of California

Author(s)
Balgooyen, Thomas G.
Year
Volume
103
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Hatching Success 89.3 % Both Male and Female Hatchling 168 Sagehen Creek Field Station Exposure Factor Datasets Nevada, Sierra
Citation:

Nest box use and reproductive biology of the American kestrel in Lassen County, California

Author(s)
Bloom, Peter H. and Stephen J. Hawks
Pages
9-14
Year
Issue
1
Volume
17
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Age at Fledging, Metamorphosis, Weaning d Both Male and Female Fledgling 112 Great Basin (elev. 1260-2340 m) Exposure Factor Datasets Lassen
Citation:

Differential habitat use by sexes of American kestrels wintering in northern California

Author(s)
Koplin, James R.
Pages
39-42
Year
Issue
2
Volume
7
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Population Density 34 average density kestrels/100 mi Both Male and Female Both Adults and Juveniles 135 obs. coastal and coast range areas Exposure Factor Datasets Colusa, Humboldt, Lake, Mendocino, Yolo +/- 11 95% CI

Deer Mouse (Peromyscus maniculatus ssp. gambelii)

Citation:

Seasonal activity and feeding patterns in a population of deer mice (Peromyscus maniculatus gambelii)

Author(s)
Seabloom, Robert W., Robert G. Schwab and Susan C. Loeb
Pages
2238-2243
Year
Volume
72
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Food Ingestion Rate 0.24 mean dry stomach content mass g Female Adult 100 Tule Lake National Wildlife Refuge (1230 m) Exposure Factor Datasets Siskiyou 0.02 SE

Mallard duck (Anas platyrhynchos)

Citation:

Survival of radio-marked mallard ducklings in northeastern California

Author(s)
Mauser, David M., Robert L. Jarvis and David S. Gilmer
Pages
82-87
Year
Issue
1
Volume
58
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type Age-Specific
Survival/ Mortality 0.366 Survival estimates determined using the Kaplan-Meier method Not Reported Chick 41 Lower Klamath National Wildlife Refuge Exposure Factor Datasets 10 days
Citation:
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Survival/ Mortality 47 These are average survival rates. For breakdown by region, see table 16, p. 27. % Male Juvenile not reported Exposure Factor Datasets
Citation:

Temporal and geographic estimates of survival and recovery rates for the mallard, 1950 through 1985.

Author(s)
Chu, D.S. and J.B. Hestbeck
Pages
57
Publisher
U.S. Department of Interior, Fish and Wildlife Service, Fish and Wildlife Technical Report 20
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type Error
Survival/ Mortality 0.5664 survival estimates for birds banded 1972-1981 Male Adult 776 Central California Exposure Factor Datasets 0.0263 (SE)
Citation:

Production of mallards on irrigated land in the Sacramento Valley

Author(s)
Earl, John P.
Pages
23
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties Condition
Time of Hatching or Parturition May 16-29 peak hatching period Both Male and Female Hatchling Not Reported Conaway Ranch Exposure Factor Datasets Yolo breeding

Deer Mouse (Peromyscus maniculatus ssp. sonoriensis)

Citation:

An altitudinal survey of reproduction in Peromyscus maniculatus

Author(s)
Dunmire, William W.
Pages
174-182
Year
Issue
1
Volume
41
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 4.73 potential litter size estimated using the larger of corpora lutea count or embryo sites #/litter Female Adult 30 White Mountain (elev., 7,000 ft) Exposure Factor Datasets Mono 0.67 SE

Northwestern Fence Lizard (Sceloporus occidentalis ssp. occidentalis)

Citation:

The times of mating and oviposition of the western fence lizard, Sceloporus occidentalis occidentalis

Author(s)
Davis, John
Pages
102
Year
Issue
1
Volume
14
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Mating/ Laying May - July time of laying, estimated from assumed incubation period of 60d Female Adult Not Reported Hastings Reservation, Carmel Valley (elev., 550m) Exposure Factor Datasets Monterey
Citation:

Home range in the western fence lizard (Sceloporus occidentalis occidentalis)

Author(s)
Davis, John and R. Glenn Ford
Pages
933-940
Year
Issue
4
Volume
1983
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties Condition
Home Range 71.40 home range reported as minimum area probability (0.95 level); minimum area which will contain a given proportion (95%) of the total observations of the average individual m2 Male Adult 11 animals Hastings Natural History Reservation, Carmel Valley Exposure Factor Datasets 2+ yr Monterey breeding

San Joaquin Fence Lizard (Sceloporus occidentalis ssp. biseriatus)

Citation:

Reproduction in mountain and lowland populations of the lizard Sceloporus occidentalis

Author(s)
Goldberg, Stephen R.
Pages
176-182
Year
Issue
1
Volume
1974
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Torpor or Hibernation Nov. - Mar. Not Reported Adult Not Reported San Gabriel Mountains, Crystal Lake (elev., 1584 m) Exposure Factor Datasets Los Angeles

Bullfrog (Lithobates catesbeianus formerly Rana catesbeiana)

Citation:

The bullfrog, Rana catesbeiana Shaw, in the lower Colorado River, Arizona-California

Author(s)
Clarkson, Robert W. and James C. deVos, Jr.
Pages
42-49
Year
Volume
20
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type
Time of Fledging or Metamorphosis Aug. - Oct. metamorphosis period for first breeding clutch Not Reported Tadpole Not Reported lower Colorado River between Laguna and Morelos Dams Exposure Factor Datasets

Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)

Citation:

Behavior and ecology of burrowing owls on the Oakland Municipal Airport

Author(s)
Thomsen, Lise
Pages
177-192
Year
Volume
73
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Fledging or Weaning Rate proportion of nesting pairs that successfully fledged young (over two years) % Both Male and Female Adult 18 birds Oakland Airport Exposure Factor Datasets

Pallid Bat (Antrozous pallidus)

Citation:

Natural history of the pallid bat, Antrozous pallidus (LeConte)

Author(s)
Orr, Robert T.
Pages
165-246
Year
Issue
4
Volume
28
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Body Weight - Mean 25.2 g Male Adult 16 Exposure Factor Datasets Kern, San Luis Obispo

San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)

Citation:

Life history of the San Joaquin kit fox

Author(s)
Morrell, Stephen
Pages
162-174
Year
Issue
3
Volume
58
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Growth Rate growth rate observed in repeatedly trapped pups lb/month Both Male and Female Pup Not Reported Buena Vista Valley Exposure Factor Datasets Kern
Citation:

Conservation of the endangered San Joaquin kit fox, Vulpes macrotis mutica, on the Naval Petroleum Reserves, California

Author(s)
O'Farrell, T.P.
Pages
207-208
Year
Volume
172
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 4.1 mean litter size pups Female Adult Not Reported Elk Hills Naval and Buena Vista Petroleum Reserves Exposure Factor Datasets Kern
Citation:

Distribution and habitat requirements of the San Joaquin kit fox in the northern extreme of their range

Author(s)
Orloff, Susan, Frank Hall and Linda Spiegel
Pages
60-70
Year
Volume
22
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Survival/ Mortality 67 % Both Male and Female Adult 3 foxes Bethany Reservoir Exposure Factor Datasets Alameda

Western Fence Lizard (Sceloporus occidentalis)

Citation:

Energy expenditure in free-ranging lizards

Author(s)
Bennett, Albert F. and Kenneth A. Nagy
Pages
697-700
Year
Volume
58
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error
Body Weight - Mean 4.4 g Not Reported Juvenile 5 Ecology Research Area, University of California, Los Angeles Exposure Factor Datasets 0.5SE
Citation:

Fat and breeding cycles in two montane populations of Sceloporus occidentalis (Reptilia, Lacertilia, Iguandidae)

Author(s)
Jameson, E.W. Jr. and Allen Allison
Pages
211-220
Year
Issue
3
Volume
10
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type
Time of Mating/ Laying Apr. (begin) time of mating Both Male and Female Adult Not Reported yellow pine forest, central Sierra Nevada (elev., 1500m) Exposure Factor Datasets
Citation:

Seasonal, sexual and altitudinal variations in stomach content and ingested fat in Sceloporus occidentalis

Author(s)
Jameson, E.W. Jr., A.A. Heusner and Donna Lem
Pages
255-261
Year
Issue
3
Volume
14
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Food Ingestion Rate 213 mean measured stomach content fresh weight of lizards averaging 9.6 g mg Male Not Reported 295 valley grassland (elev., 150m), central Sierra Nevada Exposure Factor Datasets 130SD
Citation:

Variation in clutch and litter size in New World reptiles

Author(s)
Fitch, Henry S.
Pages
28
Year
Volume
76
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 8.50 eggs/clutch Female Adult 16 "montane" habitat (elev., 1528m) Exposure Factor Datasets Kern 0.32

Western Pond Turtle (Actinemys marmorata formerly Clemmys marmorata)

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 Units Sex Life Cycle Stage Sample Size Location Type California Counties
Home Range mean daily movement m Not Reported Adult 4 Arroyo Laguna-Oak Knoll Creek, San Simeon Point Exposure Factor Datasets San Luis Obispo

California Newt (Taricha torosa)

Citation:

The number of egg masses and eggs laid by the California newt, Taricha torosa

Author(s)
Brame, Arden H.
Pages
169-170
Year
Volume
2
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size eggs/mass Female Adult 6 egg masses Sycamore Canyon Creek, San Gabriel Mountains Exposure Factor Datasets Los Angeles

Desert Iguana (Dipsosaurus dorsalis)

Citation:

Life history of the desert iguana, Dipsosaurus dorsalis

Author(s)
Krekorian, C. O'Neil
Pages
415-424
Year
Issue
4
Volume
40
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties Error
Body Weight - Mean 9.2 g Not Reported Juvenile 65 Thousand Palms Exposure Factor Datasets 7-8 mo Riverside 2.1 SD
Citation:

Ontogenetic changes in diet, field metabolic rate, and water flux in the herbivorous lizard, Dipsosaurus dorsalis

Author(s)
Mautz, William J. and Kenneth A. Nagy
Pages
640-658
Year
Issue
6
Volume
60
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type California Counties
Time of Hatching or Parturition Aug. Not Reported Hatchling Not Reported Thousand Palms Exposure Factor Datasets Riverside
Citation:

Reproduction in the desert lizard, Dipsosaurus dorsalis

Author(s)
Mayhew, Wilbur W.
Pages
57-77
Year
Issue
1
Volume
27
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Duration of Incubation or Gestation 75 time from egg to hatching d Not Reported Hatchling Not Reported Dale Dry Lake, Palm Springs and Algodones Dunes Exposure Factor Datasets Imperial, Riverside, San Bernardino
Citation:

The ecology of the desert iguana Dipsosaurus dorsalis

Author(s)
Norris, Kenneth S.
Pages
265-287
Year
Volume
34
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type
Time of Mating/ Laying June - July time of laying Female Adult Not Reported Exposure Factor Datasets

Blunt-nosed Leopard Lizard (Gambelia sila formerly Gambelia silus)

Citation:

Gambelia sila (blunt-nosed leopard lizard): Reproduction

Author(s)
Germano, David J. and Daniel F. Williams
Pages
117-118
Year
Issue
4
Volume
23
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutches or Litters per year clutches/yr Female Adult 11 Elkhorn Plain Exposure Factor Datasets San Luis Obispo
Citation:

Growth and reproduction in two closely related species of leopard lizards, Gambelia silus and Gambelia wislizenii

Author(s)
Tollestrup, Kristine
Pages
1-20
Year
Issue
1
Volume
108
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutches or Litters per year clutches/yr Female Adult Not Reported Pixley National Wildlife Refuge, Delano and Kettleman Hills Exposure Factor Datasets Kern, Kings, Tulare

Coachella Valley Fringe-toed Lizard (Uma inornata)

Citation:

Foraging ecology of the fringe-toed lizard, Uma inornata, during periods of high and low food abundance

Author(s)
Durtsche, Richard D.
Pages
915-926
Year
Issue
4
Volume
1995
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Dietary Composition Overall Total (629); Arthropod Total (201); Vertebrate Total (1); Plant Total (332): Includes; Insects, Coleoptera (28); Diptera (5); Hemiptera (25); Homoptera (177); Hymenoptera (48); Lepidoptera (3); Orthoptera (4); Snakes, Crotalidae (1); Plants, Asteraceae (42); Boraginaceae (8); Fabaceae (71) and Loasaceae (211) total numbers of food items found in stomach contents # Female Adult 13 Whitewater Floodplain Reserve, Palm Springs Exposure Factor Datasets Riverside

Island Night Lizard (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 Units Sex Sample Size Location Type Age-Specific Error
Growth Rate 0.030 increase in snout-vent length (60-70 mm size class) mm/d Not Reported Not Reported Santa Barbara Island Exposure Factor Datasets 2.9 yr 0.002 SE
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 Units Sex Sample Size Location Type Age-Specific
Growth Rate 0.03 increase in snout-vent length during 2nd yr mm/d Both Male and Female 12 San Clemente Island Exposure Factor Datasets 1-2 yr

Pacific Giant Salamander (Dicamptodon tenebrosus)

Citation:

Feeding ecology of stream-dwelling pacific giant salamander larvae (Dicamptodon tenebrosus)

Author(s)
Parker, Michael S.
Pages
705-718
Year
Volume
1994
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type Age-Specific California Counties
Time of Fledging or Metamorphosis July - Sept. Not Reported Juvenile Not Reported Fox Creek [lat., 38^o45'N, 123^o40'W] Exposure Factor Datasets 2-3 yrs Mendocino

Santa Cruz Long-toed Salamander (Ambystoma macrodactylum ssp. croceum)

Citation:

A comparison of the life histories of coastal and montane populations of Ambystoma macrodactylum in California

Author(s)
Anderson, James D.
Pages
323-355
Year
Issue
2
Volume
77
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Age at Sexual Maturity 2 yr Both Male and Female Adult Not Reported Valencia Lagoon, Rio Del Mar Exposure Factor Datasets Santa Cruz

California Brown Pelican (Pelecanus occidentalis ssp. californicus)

Citation:

Survival and dispersal of oiled brown pelicans after rehabilitation and release

Author(s)
Anderson, Daniel W., Franklin Gress, and D. Michael Fry
Pages
711-718
Year
Issue
10
Volume
32
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type
Survival/ Mortality 94% estimated survival rate of radiotagged control birds at 150-180 days post-release Not Reported Adult 17 Southern California Bight Exposure Factor Datasets

Brush Rabbit (Sylvilagus bachmani)

Citation:

Movement patterns of brush rabbits in northwestern California

Author(s)
Shields, Paul W.
Pages
381-386
Year
Volume
24
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Home Range 278 mean range diameter ft Male Adult 32 Humboldt Bay Exposure Factor Datasets Humboldt

Audubon's Cottontail (Sylvilagus audubonii ssp. audubonii)

Citation:

Natural history observations on the Audubon cottontail

Author(s)
Ingles, Lloyd G.
Pages
227-250
Year
Volume
22
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Age at Sexual Maturity reported as age at sexual maturity as lactation first observed mo Both Male and Female Adult Not Reported Sacramento Valley, Durham Exposure Factor Datasets

Gopher Snake (Pituophis catenifer formerly Pituophis melanoleucus)

Citation:

Variation in clutch and litter size in New World reptiles

Author(s)
Fitch, Henry S.
Pages
28
Year
Volume
76
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 8.5 eggs/clutch Female Adult 33 "west coast" Exposure Factor Datasets

Western Grebe (Aechmophorus occidentalis)

Citation:

The breeding populations of piscivorous birds of Eagle Lake

Author(s)
Lederer, Roger J.
Pages
771-772
Year
Issue
3
Volume
30
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Population Density 2400 annual number of individuals censused birds/lake Both Male and Female Not Reported 1 lake Eagle Lake, 42 km NW of Susanville Exposure Factor Datasets Lassen
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