Clutch or Litter Size

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Eastern Long-toed Salamander (Ambystoma macrodactylum ssp. columbianum)

Citation:

The sexual strategy of the central long-toed salamander, Ambystoma macrodactylum columbianum, in south-eastern Washington

Author(s)
Verrel, Paul and Janet Pelton
Pages
37-50
Year
Volume
240
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/female Female Adult 11 Palouse grasslands, Pullman Exposure Factor Datasets
Citation:

Life history characteristics of populations of the long-toed salamander (Ambystoma macrodactylum) from different altitudes

Author(s)
Howard, James H. and Richard L. Wallace
Pages
361-373
Year
Volume
113
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 166.5 eggs/cluster averaged 16.7 eggs/female Female Adult 25 Lindsey Creek, Perce County (elev., 420m) Exposure Factor Datasets 59.7 SD

Western Pond Turtle (Actinemys marmorata formerly Clemmys marmorata)

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 Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/clutch Female Adult 7 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 Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 5.69 average clutch size eggs/clutch Female Adult 81 clutches Arroyo Laguna, Little Pico Creek, Pico Creek and San Simeon Creek Exposure Factor Datasets

Desert Sideblotched Lizard (Uta stansburiana ssp. stejnegeri)

Citation:

Dry and wet year comparisons of clutch and adult body sizes of Uta stansburiana stejnegeri

Author(s)
Worthington, Richard D.
Pages
332-334
Year
Issue
3
Volume
16
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 2.5 based on number of enlarged vitellogenic ovarian follicles (>2 mm) or oviductal eggs during a "dry" year eggs/clutch Female Adult 8 Anapra, Dona Ana county Exposure Factor Datasets 0.38
Clutch or Litter Size 3.75 based on number of enlarged vitellogenic ovarian follicles (>2 mm) or oviductal eggs during a "wet" year eggs/clutch Female Adult 20 Anapra, Dona Ana county Exposure Factor Datasets 0.25

Island Night Lizard (Xantusia riversiana)

Citation:

The number of young of Xantusia

Author(s)
Brattstrom, Bayard H.
Pages
143-144
Year
Volume
7
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size determined by embryo count young/female Female Adult 5 San Clemente Island 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 Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size determined from fetus count young/female Female Adult 2 San Nicolas Island Exposure Factor Datasets
Citation:

Xantusia riversiana (Cope), Island Night Lizard

Author(s)
Fellers, Gary M. and Charles A. Drost
Pages
1-4
Year
Volume
518
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size review Female Adult Not Reported Exposure Factor Datasets

Audubon's Cottontail (Sylvilagus audubonii ssp. neomexicanus)

Citation:

Onset of the breeding season and size of first litters in two species of cottontails from southwestern Texas

Author(s)
Chapman, Joseph A. and Raymond P. Morgan II
Pages
277-280
Year
Volume
19
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2.60 young/litter Female Adult 10 Big Lake Exposure Factor Datasets

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 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

California Vole (Microtus californicus)

Citation:

Intraspecific litter size variation in Microtus californicus II. variation between populations

Author(s)
Krohne, David T.
Pages
1174-1182
Year
Issue
6
Volume
34
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Clutch or Litter Size 5.23 inhabiting annual grassland enclosure pups/litter Female Adult 42 captured in Contra Costa County, CA Exposure Factor Datasets 0.33 SE Laboratory
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 Sample Size Location Type California Counties Error
Clutch or Litter Size 3.4 mean; early growing season pups/litter Female Adult 9 Richmond Field Station Exposure Factor Datasets Contra Costa 0.9 (95%CI)
Clutch or Litter Size 5.2 mean; height of growing season pups/litter Female Adult 13 Richmond Field Station Exposure Factor Datasets Contra Costa 0.8 (95%CI)
Clutch or Litter Size 3.6 mean; dry season pups/litter Female Adult 5 Richmond Field Station Exposure Factor Datasets Contra Costa 0.7 (95%CI)
Clutch or Litter Size 3.0 mean; early growing season pups/litter Female Adult 11 Russell Reservation Exposure Factor Datasets Contra Costa 0.8 (95%CI)
Citation:

Nutritional ecology of the California vole: Effects of food quality on reproduction

Author(s)
Batzli, George O.
Pages
406-412
Year
Issue
2
Volume
67
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error Lab
Clutch or Litter Size 3.5 young/litter Female Adult 12 Exposure Factor Datasets subadult (4 wks) 0.6 SE Laboratory

California Whipsnake (Masticophis lateralis), Common Garter Snake (Thamnophis sirtalis)

Citation:

Reproduction and food of some California snakes

Author(s)
Cunningham, John D.
Pages
17-19
Year
Volume
15
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size eggs/female Female Adult 5 Exposure Factor Datasets Los Angeles, Mariposa, Tuolumne

Merriam's Kangaroo Rat (Dipodomys merriami)

Citation:

Population Ecology of a desert rodent: Dipodomys merriami in the Chihuahuan Desert

Author(s)
Zeng, Zongyong and James H. Brown
Pages
1328-1340
Year
Issue
5
Volume
68
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2 estimated by palpation young/litter Female Adult Not Reported Cave Creek Bajada, Cochise County (elev., 1330 m) Exposure Factor Datasets

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 Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 4 #/litter Female Adult Not Reported Exposure Factor Datasets Laboratory
Citation:

Adaptations and speciation of harvest mice of the marshes of San Francisco Bay

Author(s)
Fisler, George F.
Pages
1-98
Year
Volume
77
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.72 young/litter Female Adult Not Reported San Francisco Bay marshes Exposure Factor Datasets

Eastern Garter Snake (Thamnophis sirtalis ssp. sirtalis)

Citation:

Comparative ecology of the common garter snake (Thamnophis s. sirtalis), the ribbon snake (Thamnophis s. sauritus) and Butler's garter snake (Thamnophis butleri) in mixed populations

Author(s)
Carpenter, Charles C.
Pages
235-238
Year
Volume
22
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 18 young/litter Female Adult 20 Washtenaw County Exposure Factor Datasets

Bell's Vireo (Vireo bellii)

Citation:

Natural history of the Bell Vireo, Vireo bellii Audubon

Author(s)
Barlow, Jon C.
Pages
243-296
Year
Issue
5
Volume
12
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.39 mean clutch size (over 2 years) eggs/clutch Female Adult 33 records Lawrence Exposure Factor Datasets

Loggerhead Shrike (Lanius ludovicianus)

Citation:

Nesting ecology of the loggerhead shrike in southwestern Oklahoma

Author(s)
Tyler, Jack D.
Pages
95-104
Year
Issue
1
Volume
104
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 5.8 average clutch size, 4 years eggs/clutch Female Adult 101 nests Lawton, Comanche County Exposure Factor Datasets
Citation:

Dynamics of a loggerhead shrike population in Minnesota

Author(s)
Brooks, Bonnie L. and Stanley A. Temple
Pages
441-450
Year
Issue
3
Volume
102
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 5.65 average clutch size, 2 years eggs/clutch Female Adult 46 clutches southern Minnesota Exposure Factor Datasets 1.17 SD
Citation:

Habitat selection and breeding biology of loggerhead shrikes in eastern Ontario and Quebec

Author(s)
Chabot, Amy, Rodger D. Titman and David M. Bird
Pages
155-156
Year
Volume
6
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size average clutch sizes, 2 years eggs/clutch Female Adult 27-52 pairs/yr eastern Ontario, Quebec Exposure Factor Datasets CANADA
Citation:

Resource dependence and territory size in loggehead shrikes (Lanius ludovicianus)

Author(s)
Yosef, Reuven and Thomas C. Grubb, Jr.
Pages
465-469
Year
Issue
2
Volume
111
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 3.8 mean clutch size eggs/clutch Female Adult 24 clutches Archbold Biological Station, Highlands County Exposure Factor Datasets 0.9 SD

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 Condition
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
Clutch or Litter Size 8.2 eggs/pair/year Both Male and Female Adult Not Reported San Pablo Marsh; San Francisco Bay Exposure Factor Datasets Contra Costa breeding
Citation:

Effects of population density and supplemental food on reproduction in song sparrows

Author(s)
Arcese, Peter and James N. M. Smith
Pages
119-136
Year
Volume
57
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries Error
Clutch or Litter Size 2.77 no suppl. food eggs/clutch Both Male and Female Adult 56 pairs without suppl. food Mandarte island Exposure Factor Datasets CANADA 0.15 SE
Citation:

Variation in breeding season and clutch size in song sparrows of the pacific coast

Author(s)
Richard F. Johnston
Pages
268-273
Year
Volume
56
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size oological collections eggs/nest Both Male and Female Adult 545 records from Baja California to Alaska Exposure Factor Datasets
Citation:

Temporal spacing of broods, brood size, and parental care in song sparrows (Melospiza melodia)

Author(s)
Smith, James N. M. and Derek A. Roff
Pages
1007-1015
Year
Issue
6
Volume
58
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type Countries Error
Clutch or Litter Size 3.58; 3.42 Both Male and Female Adult 140; 89 Mandarte Island Exposure Factor Datasets CANADA 0.1; 0.19

Striped Skunk (Mephitis mephitis)

Citation:

Mephitis mephitis

Author(s)
Wade-Smith, Julia and B.J. Verts
Pages
1-7
Year
Volume
173
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size review Female Adult Not Reported Exposure Factor Datasets
Citation:

Biology of the striped skunk

Author(s)
Verts, B. J.
Pages
182
Publisher
University of Illinois Press
Year
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 7.3 pups/litter Female Adult 21 Exposure Factor Datasets 0.25

California Newt (Taricha torosa)

Citation:

Effects of solar UV-B radiation on embryonic development in Hyla cadaverina, Hyla regilla and Taricha torosa

Author(s)
Anzalone, Christopher R., Lee B. Kats and Malcolm S. Gordon
Pages
646-653
Year
Volume
12
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size #/clutch Female Adult Not Reported Santa Monica Mountains Exposure Factor Datasets Los Angeles
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
Citation:

The reproductive cycle in Taricha torosa (Triturus torosus)

Author(s)
Miller, Malcom R. and Marilyn E. Robbins
Pages
415-445
Year
Volume
125
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size ova/mature ovary Female Adult Not Reported Palo Alto Exposure Factor Datasets

Bullfrog (Lithobates catesbeianus formerly Rana catesbeiana)

Citation:

The influence of male-defended oviposition sites on early embryo mortality in bullfrogs

Author(s)
Howard, Richard D.
Pages
789-798
Year
Issue
4
Volume
59
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/clutch Female Adult Not Reported Crane Pond, E.S. George Reserve Exposure Factor Datasets
Citation:

The reproductive behavior of the bullfrog (Rana catesbeiana)

Author(s)
Ryan, Michael J.
Pages
108-114
Year
Volume
1980
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 7,360 Number of eggs in a 10x10cm area used to estimate eggs per mass #/egg mass Female Adult 36 Basking Pond, Great Swamp National Wildlife Refuge, Morris County Exposure Factor Datasets 741.7 SE

Mallard duck (Anas platyrhynchos)

Citation:

Nesting biology of mallards in California

Author(s)
McLandress, M. Robert, Gregory S. Yarris, Alison E.H. Perkins, Daniel P. Connelly and Dennis G. Raveling
Pages
94-107
Year
Issue
1
Volume
60
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 8.2 eggs Not Reported Not Reported 246 San Joaquin Valley Exposure Factor Datasets
Clutch or Litter Size 8.3 eggs Not Reported Not Reported 227 Northeastern California Exposure Factor Datasets

Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)

Citation:

Artificial burrows provide new insight into burrowing owl nesting biology

Author(s)
Henny, Charles J. and Lawrence J. Blus
Pages
82-85
Year
Issue
3
Volume
15
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/clutch Female Adult 4 burrows Umatillo and Morrow counties Exposure Factor Datasets
Citation:

Selected aspects of burrowing owl ecology and behavior

Author(s)
Martin, Dennis J.
Pages
446-456
Year
Volume
75
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 78 total number of young observed on study site young/study site Both Male and Female Juvenile 15 pairs Albuquerque Exposure Factor Datasets
Citation:

Sexual size dimorphism, mate choice, and productivity of burrowing owls

Author(s)
Plumpton, David L and R. Scott Lutz
Pages
724-727
Year
Issue
3
Volume
111
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 4.38 mean productivity chicks/nesting territory Both Male and Female Adult 33 nests Rocky Mountain Arsenal National Wildlife Area Exposure Factor Datasets
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
Clutch or Litter Size mean annual productivity young/breeding adult Both Male and Female Adult 18 birds Oakland Airport Exposure Factor Datasets

Desert Tortoise (Gopherus agassizi)

Citation:

A comparison of populations of desert tortoise, Gopherus agassizi, in grazed and ungrazed areas in Ivanpah Valley, California

Author(s)
Turner, Frederick B., Philip A. Medica and Craig L. Lyons
Pages
139-162
Publisher
Desert Tortoise Council
Year
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size range of mean clutch size eggs/clutch Female Not Reported 7-15 Ivanpah Valley [lat., 35^o23'N; long., 115^o18'W] Exposure Factor Datasets San Bernardino
Citation:

Age-size relationships of desert tortoises (Gopherus agassizi) in southern Nevada

Author(s)
Turner, Frederick B., Philip A. Medica and R. Bruce Bury
Pages
974-979
Year
Issue
4
Volume
1987
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size determined by x-ray examination of females eggs/clutch Female Adult 3 animals Rock Valley, Nye County (elev., 1020m) Exposure Factor Datasets
Citation:

Egg production by the desert tortoise (Gopherus agassizii) in California

Author(s)
Turner, Frederick B., Page Hayden, Betty L. Burge and Jan B. Roberson
Pages
93-104
Year
Issue
1
Volume
42
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size range of means for 3 yrs; based on x-ray examination (overall range = 1-8) eggs/clutch Female Adult 20-26 animals Ivanpah Valley, Goffs Exposure Factor Datasets San Bernardino
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

California Sea Lion (Zalophus californianus)

Citation:

California sea lion mortality: Natural or artifact

Author(s)
Brownell, R. L. and B.J. LeBoeuf
Pages
287-305
Publisher
Allan Hancock Foundation, University of Southern California
Year
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 1 pup/litter Female Adult Not Reported San Miguel Island Exposure Factor Datasets

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 Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3 young/litter Female Adult Not Reported Sacramento Valley, Durham Exposure Factor Datasets

Sideblotched Lizard (Uta stansburiana)

Citation:

Clutch size of the lizard Uta stansburiana in southern Nevada

Author(s)
Hoddenbach, Gerard A. and Frederick B. Turner
Pages
262-265
Year
Volume
80
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range of monthly means for 2 size classes measured over 3 yrs. eggs/clutch Female Adult 3 - 95 clutches/mo Rock Valley, Nye County Exposure Factor Datasets
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 Sample Size Location Type California Counties
Clutch or Litter Size 4.6 average clutch size eggs/female Female Adult 16 Corral Hollow Road Exposure Factor Datasets Contra Costa
Clutch or Litter Size 4.3 average clutch size eggs/female Female Adult 27 Del Puerto Canyon Road Exposure Factor Datasets Stanislaus
Clutch or Litter Size 6.3 average clutch size eggs/female Female Adult 35 Los Banos Creek, Billy Wright Road Exposure Factor Datasets Merced
Citation:

Notes on reproduction of the side-blotched lizard Uta stansburiana stansburiana in southwest Idaho

Author(s)
Bakewell, George, Joseph M. Chopek and Gary L. Burkholder
Pages
477-482
Year
Issue
3
Volume
43
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.75 mean clutch size eggs/clutch Female Adult 124 Snake River Valley (elev., 530-750m) Exposure Factor Datasets

Valley Garter Snake (Thamnophis sirtalis ssp. fitchi)

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 Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 11.32 based on embryo count eggs/litter Female Adult 22 Exposure Factor Datasets 0.98

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 Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 2 most frequent clutch size, 2 years Female Adult 96 nests Sunset Aquatic Park, Huntington Beach Exposure Factor Datasets Orange
Citation:

Second wave nesting of the California least tern: age composition and reproductive success

Author(s)
Massey, Barbara W. and Jonathon L. Atwood
Pages
596-605
Year
Volume
98
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 2.33 (first wave), 1.70 (second wave) average clutch sizes for early and late nesters eggs/clutch Female Adult 10 nests (first wave), 33 nests (second wave) NASA Island, Seal Beach National Wildlife Refuge Exposure Factor Datasets Orange
Citation:

Experiments on the nesting behavior of the least tern, Sterna albifrons browni

Author(s)
Davis, Milton E.
Pages
25-43
Year
Issue
72
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size eggs/clutch Female Adult 12 clutches Huntington Beach State Park Exposure Factor Datasets Orange

Willow Flycatcher (Empidonax traillii)

Citation:
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 3.68 mean clutch size in first nests eggs/nest Female Adult 31 nests Wooster and Toledo, OH; Fremont, NE Exposure Factor Datasets 0.1 SE
Clutch or Litter Size 3.14 mean clutch size in renests eggs/nest Female Adult 29 nests Wooster and Toledo, OH; Fremont, NE Exposure Factor Datasets 0.1 SE
Citation:

Feeding-time minimization and the territorial behavior of the willow flycatcher (Empidonax traillii)

Author(s)
Prescott, David R.C. and Alex L.A. Middleton
Pages
17-28
Year
Volume
105
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size 4 first clutch size in 13/14 females observed eggs/nest Female Adult 14 females Badenoch Swamp, 14 km SE of Guelph (69 deg, 32'N, 80 deg, 13' W) Exposure Factor Datasets CANADA

Fresno Kangaroo Rat (Dipodomys nitratoides ssp. exilis)

Citation:

Observations on the natural history of the Fresno kangaroo rat

Author(s)
Culbertson, A.E.
Pages
189-193
Year
Volume
27
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 2 young/litter Female Adult Not Reported adults captured near Fresno Exposure Factor Datasets Laboratory

Coyote (Canis latrans)

Citation:

Coyote, Canis latrans, ecology in a rural-urban environment

Author(s)
Atkinson, K.T. and D.M. Shackleton
Pages
49-54
Year
Volume
105
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries Error
Clutch or Litter Size 5.4 estimated by placental scars, number of foeti and 2 litters young/litter Female Adult 20 Lower Fraser Valley, British Columbia Exposure Factor Datasets CANADA 1.8 SD
Citation:

Canis latrans

Author(s)
Bekoff, Marc
Pages
1-9
Year
Volume
79
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size review Female Adult Not Reported Exposure Factor Datasets
Citation:

Population dynamics of coyotes in southeastern Colorado

Author(s)
Gese, Eric M., Orrin J. Rongstad and William R. Mytton
Pages
174-181
Year
Volume
53
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.2 pups/litter Female Adult 16 Pinon Canyon Maneuver Site, Trinidad (elev., 1310-1740 m) Exposure Factor Datasets
Citation:

Average litter size of the coyote in Tennessee

Author(s)
Kennedy, Michael L., Jeffrey G. Babb, Robert M. Lee and Charles Lydeard
Pages
61-62
Year
Volume
65
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 5.0 estimated by placental scars young/litter Female Adult 59 Exposure Factor Datasets

Mourning Dove (Zenaida macroura)

Citation:

Nesting habits of the mourning dove in Alabama

Author(s)
Pearson, Allen M. and George C. Moore
Pages
468-473
Year
Volume
4
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2 average clutch size eggs/clutch Female Adult 592 clutches near Auburn Exposure Factor Datasets

Southwestern Willow Flycatcher (Empidonax traillii ssp. extimus)

Citation:

Status and breeding ecology of the southwestern willow flycatcher in the Grand Canyon

Author(s)
Sogge, Mark K., Timothy J. Tibbitts, Jim R. Petterson
Pages
142-157
Year
Volume
28
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3 mean clutch size eggs/nest Female Adult 3 nests Colorado River Exposure Factor Datasets

Deer Mouse (Peromyscus maniculatus ssp. borealis)

Citation:

Life cycle characteristics of northern Peromyscus maniculatus borealis

Author(s)
Millar, J.S.
Pages
510-515
Year
Issue
4
Volume
60
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type Error Lab
Clutch or Litter Size 5.03 Female Adult 98 Original pairs trapped at Heart Lake, Northwest Territories Exposure Factor Datasets 0.18 SE Laboratory

San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)

Citation:

Reproduction and spacing patterns of kit foxes relative to changing prey availability

Author(s)
White, Patrick J. and Katherine Ralls
Pages
861-867
Year
Issue
4
Volume
57
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size pups Female Adult 4 foxes Carrizo Plain Natural Area Exposure Factor Datasets San Luis Obispo

Desert Iguana (Dipsosaurus dorsalis)

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 Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size based on eggs in oviduct eggs/clutch Female Adult 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 Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/clutch Female Adult Not Reported Exposure Factor Datasets

Audubon's Cottontail (Sylvilagus audubonii)

Citation:

The rabbits of California

Author(s)
Orr, R.T.
Pages
1-227
Year
Volume
19
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.6 young/litter Female Adult 19 Exposure Factor Datasets

Light-footed Clapper Rail (Rallus longirostris ssp. levipes)

Citation:

Nesting habitat of the light-footed clapper rail in southern California

Author(s)
Massey, Barbara W., Richard Zembal and Paul D. Jorgensen
Pages
67-80
Year
Issue
1
Volume
55
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 6.55 mean clutch size (1 year) Female Adult 33 nests Tijuana Marsh, Upper Newport and Anaheim Bays Exposure Factor Datasets Orange 0.19 SE

Red-sided Garter Snake (Thamnophis sirtalis ssp. parietalis)

Citation:

An ecological study of the garter snake, Thamnophis sirtalis

Author(s)
Fitch, Henry S.
Pages
493-564
Year
Volume
15
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 14.5 young/litter Female Adult 132 Douglas and Jefferson Counties Exposure Factor Datasets

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 Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 5 usual number of eggs laid eggs/clutch Female Adult Not Reported Exposure Factor Datasets

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 Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 11 # large ovarian eggs/female #/clutch Female Adult 26 Pinehurst Madrone Grove Park Exposure Factor Datasets Contra Costa

Snowy Plover (Charadrius nivosus formerly Charadrius alexandrinus)

Citation:

Breeding biology of a kentish plover (Charadrius alexandrius) population in an inland saline lake

Author(s)
Fraga, Rosendo M., and Juan A. Amat
Pages
69-85
Year
Issue
1
Volume
43
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size 2.63 clutch size eggs/clutch Female Adult 316 nests Fuente de Piedra lake, s. Spain Exposure Factor Datasets SPAIN
Clutch or Litter Size 2.69 (1991), 2.54 (1992) mean numbers of chicks hatched per successful nest chicks/nest Both Male and Female Hatchling 26 (1991), 35 (1992) nests Fuente de Piedra lake, s. Spain Exposure Factor Datasets SPAIN

Deer Mouse (Peromyscus maniculatus)

Citation:

Breeding by Peromyscus in seasonal environments

Author(s)
Millar, John S., F.B. Wille and Stuart L. Iverson
Pages
719-727
Year
Issue
4
Volume
57
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Condition Countries Error
Clutch or Litter Size 4.70 #/litter Female Adult 10 Pinawa, Manitoba Exposure Factor Datasets primiparous CANADA 0.54 SE
Clutch or Litter Size 5.24 #/litter Female Adult 46 Pinawa, Manitoba Exposure Factor Datasets multiparous CANADA 0.22 SE
Citation:
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 4.1 #/litter Female Adult 55 Anytown (elev., 400 m) Exposure Factor Datasets Yolo 0.2 SE

Western Fence Lizard (Sceloporus occidentalis)

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 Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 11.3 eggs/clutch Female Adult 48 yellow pine forest, central Sierra Nevada (elev., 1500m) Exposure Factor Datasets 0.41SE
Citation:

The evolution of maternal investment in lizards: an experimental and comparative analysis of egg size and its effects on offspring performance

Author(s)
Sinervo, Barry
Pages
279-294
Year
Issue
2
Volume
44
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/clutch Female Adult 39 - 59 Table Mountain, Wrightwood (elev., 2200m) and Mojave desert, Pearblossom (elev., 1330m) Exposure Factor Datasets

Citation:
Exposure Endpoint Type Endpoint Value Units Location Type
Clutch or Litter Size 12 n Exposure Factor Datasets

Brush Rabbit (Sylvilagus bachmani)

Citation:

The rabbits of California

Author(s)
Orr, R.T.
Pages
1-227
Year
Volume
19
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.5 young/litter Female Adult 11 Exposure Factor Datasets

Brown Pelican (Pelecanus occidentalis)

Citation:

Weight growth of young double-crested cormorants in the St. Lawrence Estuary, Quebec

Author(s)
Desgranges, Jean-Luc
Pages
79-86
Year
Volume
5
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries Error
Clutch or Litter Size 3.2 mean clutch size among successful nests eggs Female Adult 32 nests St. Lawrence estuary Exposure Factor Datasets CANADA 0.2 SE

Common Garter Snake (Thamnophis sirtalis)

Citation:

Geographic variation in reproductive characteristics among Canadian populations of the common garter snake (Thamnophis sirtalis)

Author(s)
Gregory, Patrick T. and Karl W. Larsen
Pages
946-958
Year
Volume
1993
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size range of site means based on sum of live and dead young and undeveloped eggs at parturition young/litter Female Adult 4 - 30/site Exposure Factor Datasets CANADA
Citation:

Reproductive ecology of the common garter snake, Thamnophis sirtalis, at the northern limit of its range

Author(s)
Larsen, Karl W. and Patrick T. Gregory
Pages
336-345
Year
Volume
129
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Clutch or Litter Size 12.5 young/litter Female Adult 23 captured at Wood Buffalo National Park, Canada Exposure Factor Datasets 4.95 (SD) Laboratory

Great Horned Owl (Bubo virginianus)

Citation:

The nesting, reproductive performance, and chlorinated hydrocarbon residues in the red-tailed hawk and great horned owl in south-central Montana

Author(s)
Seidensticker, John C. and Harry V. Reynolds
Pages
408-418
Year
Issue
4
Volume
83
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 2.2 eggs/clutch Female Adult 6 nests south-central Montana Exposure Factor Datasets 0.2 SE

San Pablo Song Sparrow (Melospiza melodia ssp. samuelis)

Citation:

Variation in breeding season and clutch size in song sparrows of the pacific coast

Author(s)
Richard F. Johnston
Pages
268-273
Year
Volume
56
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.28 eggs/nest Both Male and Female Adult 90 records Exposure Factor Datasets

Deer Mouse (Peromyscus maniculatus ssp. artemisiae)

Citation:

Ecological notes on deer mice in Grand Teton National Park, Wyoming

Author(s)
Clark, Tim W.
Pages
14-16
Year
Volume
49
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 6.2 based on embryo counts #/litter Female Adult 9 Grand Teton National Park Exposure Factor Datasets

American Kestrel (Falco sparverius)

Citation:

Influence of nest-box placement and density on abundance and productivity of American kestrels in central Missouri

Author(s)
Toland, Brian R. and William H. Elder
Pages
712-717
Year
Volume
99
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Condition
Clutch or Litter Size 5.1 mean clutch size over 3 years eggs per nest Female Adult 28 pairs rural and urban lands Exposure Factor Datasets Breeding

California Ground Squirrel (Spermophilus beecheyi)

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 Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size embryos/female Female Adult Not Reported Coho creek Exposure Factor Datasets Tulare

Northern Flicker (Colaptes auratus)

Citation:

A monograph of the flicker (Colaptes auratus)

Author(s)
Burns, Frank L.
Pages
1-82
Year
Issue
31
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size range of clutch sizes eggs/clutch Female Adult 191 clutches Exposure Factor Datasets USA

San Joaquin Kangaroo Rat (Dipodomys nitratoides)

Citation:

The reproduction of heteromyid rodents in captivity

Author(s)
Eisenberg, John F. and Donald E. Isaac
Pages
61-67
Year
Volume
44
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 2.3 pups/litter Female Adult 12 litters Exposure Factor Datasets Laboratory

Deer Mouse (Peromyscus maniculatus ssp. nebrascensis)

Citation:

Life cycle characteristics of Peromyscus maniculatus nebrascensis

Author(s)
Millar, John S.
Pages
1280-1284
Year
Volume
63
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Clutch or Litter Size 5.14 litter size at parturition #/litter Female Adult 104 captured in Alberta, Canada Exposure Factor Datasets 0.14 SE Laboratory

Peregrine Falcon (Falco peregrinus)

Citation:

Organochlorines in Alaskan peregrine falcon eggs and their current impact on productivity

Author(s)
Ambrose, Robert E., Charles J. Henny, Robin E. Hunter, and John A. Crawford
Pages
385-393
Publisher
The Peregrine Fund, Inc.
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.39 mean clutch size eggs/clutch Female Adult 18 clutches Exposure Factor Datasets
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