Clutch or Litter Size

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Peregrine Falcon (Falco peregrinus)

Citation:

Status and reproduction of the peregrine falcon at a coastal lagoon in Baja California Sur, Mexico

Author(s)
Castellanos, Aradit, Federico Salinas-Zavala and Alfredo Ortega-Rubio
Pages
110-112
Year
Volume
28
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size 3.3 average clutch size eggs/nest Female Adult 3 breeding pairs Ojo de Liebre Lagoon, Baja California Exposure Factor Datasets MEXICO
Citation:

The peregrine falcon: life history and population literature

Author(s)
Hickey, Joseph J. and Daniel W. Anderson
Pages
3-42
Publisher
University of Wisconsin Press
Year
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:

Distribution and reproductive success of peregrine falcons (Falco peregrinus anatum) in California during 1975 and 1976

Author(s)
Thelander, Carl G.
Pages
13
Publisher
California Department of Fish and Game, Wildlife Management Branch Administrative Report
Year
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range for two sites over two yrs eggs/nest Female Adult 4 Exposure Factor Datasets
Citation:

Distribution and breeding biology of raptors in the Thelon River area, Northwest Territories, 1957-1969

Author(s)
Kuyt, E.
Pages
121-130
Year
Volume
94
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size 3.3 mean clutch size eggs/clutch Female Adult 29 Thelon River, Northwest Territories Exposure Factor Datasets CANADA
Citation:

Probleme der Fortpflanzungsbiolgie und Bestandserhaltung bei deutschen Wanderfalken (Falco peregrinus)

Author(s)
Mebs, Theodor
Pages
47-56
Year
Volume
81
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size 3.21 eggs/nest Female Adult 24 nests Southern Germany Exposure Factor Datasets GERMANY

Desert Tortoise (Gopherus agassizi)

Citation:

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

Author(s)
Mueller, James M., Kamila R. Sharp, Katherine K. Zander, Danny L. Rakestraw, Kurt R. Rautenstrauch and Patrick E. Lederle
Pages
313-319
Year
Volume
32
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range of mean clutch size over 3 years in two sample groups eggs/clutch Female Adult 10-25 Yucca Mountain, Nye County (elev., 1000-1500m) [lat., 36^o51'; long., 116^o25' W] Exposure Factor Datasets
Citation:

Field studies of natality in the desert tortoise, Gopherus agassizi

Author(s)
Hampton, Anne M.
Pages
128-138
Publisher
Desert Tortoise Council
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 3 estimated from eggshell fragments in nest eggs/nest Female Adult 15 nests Fremont Valley Exposure Factor Datasets Kern

Deer Mouse (Peromyscus maniculatus ssp. borealis)

Citation:

Demographic and life cycle characteristics of montane deer mice

Author(s)
Millar, John S. and Duncan G. Innes
Pages
574-585
Year
Issue
3
Volume
61
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Countries Error
Clutch or Litter Size 5.25 #/litter Female Adult 102 Kananaskis Valley, Alberta [lat., 51 N] Exposure Factor Datasets CANADA 0.09 SE
Citation:

Energy requirements during reproduction of Peromyscus maniculatus

Author(s)
Stebbins, L.L.
Pages
1701-1704
Year
Volume
55
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size #/litter Female Adult 8 captured in Lethbridge, Alberta Exposure Factor Datasets Laboratory

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
Clutch or Litter Size 4.88 potential litter size; estimated using the larger of corpora lutea count or embryo sites #/litter Female Adult 26 White Mountain (elev.,12,400 ft) Exposure Factor Datasets Mono 0.46 SE
Clutch or Litter Size 4.00 potential litter size estimated using the larger of corpora lutea count or embryo sites #/litter Female Adult 2 White Mountain (elev., 4,500 ft) Exposure Factor Datasets Mono 1.00 SE

Deer Mouse (Peromyscus maniculatus)

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
Citation:

Litter survival of deer mice (Peromyscus maniculatus) in nest boxes

Author(s)
Sleeper, Roger A.
Pages
259-260
Year
Volume
25
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range of mean litter sizes for 2 yrs; based on embryo counts #/litter Female Adult 7 - 8 litters San Juan Mountains (elev., 3200 m) Exposure Factor Datasets
Citation:

Effects of range treatment with 2,4-D on rodent populations

Author(s)
Johnson, Donald R. and Richard M. Hansen
Pages
125-132
Year
Issue
1
Volume
33
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 5.27 mean litter size based upon number of visible embryos #/litter Female Adult 77 Gunnison County and Saquache County, (elev., 8500 - 9300 ft.) Exposure Factor Datasets 0.13
Citation:

Relationship between metabolic rate and energy expenditure for lactation in Peromyscus

Author(s)
Glazier, Douglas S.
Pages
587-590
Year
Issue
4
Volume
80
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Clutch or Litter Size 4.3 pups/litter Female Adult 10 Exposure Factor Datasets 0.36 SE Laboratory
Citation:

Intraspecific variation in body size, metabolic rate, and reproduction of deer mice (Peromyscus maniculatus)

Author(s)
Earle, Michael and D. M. Lavigne
Pages
381-388
Year
Issue
2
Volume
68
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size range of means from 3 sites pups/litter Female Adult 19-29 adults captured at Milk River, Alberta [lat., 49^o07'N; long., 111^o45'W] and Sydney, British Columbia, Canada [lat., 48^o43'N; long., 123^o20'W] Exposure Factor Datasets Laboratory

Kit Fox (Vulpes macrotis)

Citation:

Notes on ecology and food of the Kit fox in Central Utah

Author(s)
Smith, Dwight G.
Pages
96 - 98
Year
Issue
2
Volume
3
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2.5 mean litter size pups Female Adult 8 litters Exposure Factor Datasets

Northern Red-legged Frog (Rana aurora) formerly Rana aurora ssp. aurora

Citation:

Natural mortality of tadpoles in a population of Rana aurora

Author(s)
Calef, George Waller
Pages
741-758
Year
Issue
4
Volume
54
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Countries Error
Clutch or Litter Size 531 #/egg mass Female Adult 35 egg masses Marion Lake, southern British Columbia (elev., 300m) Exposure Factor Datasets CANADA 19 SE
Citation:

Survival of embryos, tadpoles, and adults of the frogs Rana aurora aurora and Rana pretiosa pretiosa sympatric in southwestern British Columbia

Author(s)
Licht, Lawrence E.
Pages
613-627
Year
Issue
5
Volume
52
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size 680 # ova/egg mass Female Adult Not Reported White Rock, British Columbia Exposure Factor Datasets CANADA
Citation:

Notes on the breeding biology of the red-legged frog (Rana aurora aurora)

Author(s)
Storm, Robert M.
Pages
251-259
Year
Issue
4
Volume
16
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size #/egg mass Female Adult 6 egg masses Corvallis Exposure Factor Datasets

Western Fence Lizard (Sceloporus occidentalis)

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 6.50 eggs/clutch Female Adult 8 "lowland" habitat Exposure Factor Datasets Kern 0.53
Clutch or Litter Size 8.50 eggs/clutch Female Adult 16 "montane" habitat (elev., 1528m) Exposure Factor Datasets Kern 0.32
Clutch or Litter Size 7.00 eggs/clutch Female Adult 8 "lowland" habitat Exposure Factor Datasets San Diego 0.50
Clutch or Litter Size 7.50 eggs/clutch Female Adult 10 "montane" habitat, (elev., 1830m) Exposure Factor Datasets San Diego 0.62
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
Clutch or Litter Size 8.2 eggs/clutch Female Adult Not Reported Ecology Research Area, University of California, Los Angeles Exposure Factor Datasets
Citation:

A field study of the growth and behavior of the fence lizard

Author(s)
Fitch, Henry S.
Pages
151-172
Year
Volume
44
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 13.7 estimated by number of developing ova eggs/clutch Female Adult 7 Strawberry Canyon, Berkeley Hills Exposure Factor Datasets

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

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 Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size range of average clutch size from 2 sites over 2 yrs eggs/clutch Female Adult 3-22 Delano and Kettleman Hills Exposure Factor Datasets Kern, Kings

Sideblotched Lizard (Uta stansburiana)

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 Units Sex Life Cycle Stage Sample Size Location Type Age-Specific
Clutch or Litter Size range of average clutch sizes on 8 dates eggs/clutch Female Adult Not Reported Exposure Factor Datasets >12 mo
Citation:

The life and demography of the side-blotched lizard, Uta stansburiana

Author(s)
Tinkle, Donald W.
Pages
1 - 182
Year
Volume
132
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range of monthly average clutch sizes over 3 yrs eggs/clutch Female Adult 13-48 lizards/10 dates Exposure Factor Datasets
Citation:

Reproduction in a mountain population of the side-blotched lizard, Uta stansburiana (Reptilia, Lacertilia, Iguanidae)

Author(s)
Goldberg, Stephen R.
Pages
31-35
Year
Issue
1
Volume
11
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 3.5 eggs/clutch Female Adult 162 San Gabriel Mountains (elev., 1585-1829m) Exposure Factor Datasets Los Angeles

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
Clutch or Litter Size 6.25 young/litter Female Adult 8 litters Calaveras Reservoir Exposure Factor Datasets Alameda, Santa Clara
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
Clutch or Litter Size 6.09 based on embryo and placental scar counts young/litter Female Adult 148 Davis and Dixon Exposure Factor Datasets Solano, Yolo
Citation:

Natural history of the ground squirrels of California

Author(s)
Grinnel, J. and J.S. Dixon
Pages
597-708
Year
Volume
7
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size based on embryo counts young/litter Female Adult Not Reported Exposure Factor Datasets
Citation:

Circulating prolactin in free-living california ground squirrels (Spermophilus beecheyi)

Author(s)
Holekamp, Kay E., Scott Nunes, and Frank Talamantes
Pages
484-492
Year
Volume
71
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties Condition
Clutch or Litter Size 8.3 young/litter Female Adult 20 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz multiparous
Clutch or Litter Size 6.9 young/litter Female Adult 14 University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] Exposure Factor Datasets Santa Cruz primiparous
Citation:

Latitude and litter size of the California ground squirrel, Spermophilus beecheyi

Author(s)
Chapman, Joseph A. and Gordon S. Lind
Pages
101-105
Year
Volume
72
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range of means for 2 sites young/litter Female Adult 9-13/site Douglas and Benton counties {lat., 43-44.5^oN] Exposure Factor Datasets

Willow Flycatcher (Empidonax traillii)

Citation:

Livestock management and productivity of willow flycatchers in the central Sierra Nevada

Author(s)
Valentine, Bradley E., Thomas A. Roberts, Stephen P. Boland and A. Peter Woodman
Pages
105-114
Year
Volume
24
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size range of clutch sizes eggs Female Adult 6 nests Sierra National Forest Exposure Factor Datasets Fresno
Citation:

Traill's flycatcher breeding biology

Author(s)
Holcomb, Larry C.
Pages
50-68
Year
Issue
3
Volume
40
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 3.68 mean first clutch size eggs Female Adult 31 nests Toledo, Wooster, OH Exposure Factor Datasets 0.1 SE
Clutch or Litter Size 3.14 mean clutch size in renests eggs Female Adult 29 nests Toledo, Wooster, OH Exposure Factor Datasets 0.1 SE

California Vole (Microtus californicus)

Citation:

Analysis of two freely-growing enclosed populations of the California vole

Author(s)
Lidicker, William Z.
Pages
447-466
Year
Issue
3
Volume
60
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size pups/litter Female Adult 35 females Exposure Factor Datasets Laboratory
Citation:

Home range, population structure, and spatial organization of California ground squirrels

Author(s)
Boellstorff, Diane E. and Donald H. Owings
Pages
551-561
Year
Issue
2
Volume
76
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size range of means for 2 yrs young/litter Female Adult 11/yr Camp Ohlone [lat., 37^o29'N; long., 121^o45'W] Exposure Factor Datasets Alameda
Citation:

Reproduction in a coastal California population of the field mouse, Microtus californicus

Author(s)
Greenwald, Gilbert S.
Pages
421-466
Year
Volume
54
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 4.20 mean embryo number per female embryos/female Female Adult 154 San Francisco Bay, San Rafael Exposure Factor Datasets Marin 1.41 SD
Citation:

Intraspecific litter size variation in Microtus californicus: variation within populations

Author(s)
Krohne, David T.
Pages
29-40
Year
Issue
1
Volume
62
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size see citation figure of mean monthly litter sizes Female Adult 4-33/mo Orinda, Layfayette, Russell Reservation and Sea Ranch Exposure Factor Datasets Contra Costa, Sonoma
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 3.7 young/litter Female Adult 24 Exposure Factor Datasets subadult (4 weeks) 0.2 SE Laboratory

Striped Skunk (Mephitis mephitis)

Citation:

Population characteristics of striped skunks in northern Minnesota

Author(s)
Fuller, Todd K. and David W. Kuehn
Pages
813-815
Year
Issue
4
Volume
66
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error
Clutch or Litter Size 8.0 fetuses Female Both Adults and Juveniles 4 animals Exposure Factor Datasets >2 years 1.0 SE
Clutch or Litter Size 6.5 placental scars Female Both Adults and Juveniles 5 animals Exposure Factor Datasets 1-1.5 years 0.65 SE
Clutch or Litter Size 5.8 placental scars Female Both Adults and Juveniles 13 animals Exposure Factor Datasets > 2 years 0.66 SE
Citation:

Age-related Reproduction in striped skunks (Mephitis mephitis) in the upper Midwest

Author(s)
Greenwood, Raymond J. and Alan B. Sargeant
Pages
657-662
Year
Issue
3
Volume
75
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error
Clutch or Litter Size 7.2 live embryo counts pups/litter Female Adult 178 females east-central North Dakota; west -central Minnesota Exposure Factor Datasets primarily 1 and 2 years old 0.4 SE
Citation:

Reproduction in captive striped skunks (Mephitis mephitis)

Author(s)
Wade-Smith, Julia and Milo E. Richmond
Pages
452-455
Year
Issue
2
Volume
100
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 4.28 pups/litter Female Adult 118 litters Exposure Factor Datasets Laboratory
Citation:

Population characteristics and movements of striped skunk (Mephitis mephitis) in central Alberta

Author(s)
Bjorge, Ronald R., John R. Gunson and William M. Samuel
Pages
149-155
Year
Issue
2
Volume
95
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size range of mean litter sizes for two years pups/litter Female Adult 15 litters Tofield 15 deg.N,112 deg. W east central Alberta Exposure Factor Datasets CANADA
Citation:

Care, management, and biology of captive striped skunks (Mephitis mephitis)

Author(s)
Wade-Smith Julia and Milo E. Richmond
Pages
575-584
Year
Issue
5
Volume
25
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error Lab
Clutch or Litter Size 4.38 pups/litter Female Adult 48 females Exposure Factor Datasets 2.38 SD Laboratory
Citation:

Parameters of population and seasonal activity of striped skunks, Mephitis mephitis, in Alberta and Saskatchewan

Author(s)
Schowalter, David B. and John R. Gunson
Pages
409-420
Year
Issue
4
Volume
96
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size 6.8 embryos; all ages pups/litter Female Adult 87 females Saskatchewan; Alberta Exposure Factor Datasets CANADA

Sea Otter (Enhydra lutris)

Citation:

The sea otter in the eastern Pacific Ocean

Author(s)
Kenyon, Karl W.
Pages
1-352
Year
Issue
68
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 1 litter size as indicated by reproductive tract examination pup Female Adult 278 reproductive tracts Amchitka Island Exposure Factor Datasets

Great Horned Owl (Bubo virginianus)

Citation:

Notes on nesting great horned owls in southern Arizona

Author(s)
Mader, William J.
Pages
109-111
Year
Issue
3/4
Volume
7
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Condition
Clutch or Litter Size 2.5 mean clutch size eggs/clutch Female Adult 16 nests Pima and Pinal Counties Exposure Factor Datasets breeding
Citation:

Hawks, Owls and Wildlife

Author(s)
Craighead, John J. and Frank C. Craighead, Jr.
Pages
443
Publisher
Dover Publications, Inc.
Year
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2.2 eggs/clutch Female Adult 4 nests Jackson Hole Exposure Factor Datasets
Citation:

Impacts of a nuclear energy facility on raptorial birds

Author(s)
Fitzner, R.E.
Pages
9-33
Publisher
U.S. Fish and Wildlife Service
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 3.0 average clutch size eggs/clutch Female Adult 12 nests Hanford Site, Benton and Franklin Counties Exposure Factor Datasets 0.56
Citation:

A banding study of Cincinnati area great horned owls

Author(s)
Holt, John B., Jr.
Pages
194-197
Year
Issue
4
Volume
30
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 1-4 brood size at the time of banding young/nest Not Reported Juvenile 906 nests near Cincinnati Exposure Factor Datasets

Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)

Citation:

Burrowing Owl (Speotyto cunicularia)

Author(s)
Haug, Elizabeth A., Brian A. Millsap and Mark S. Martell
Pages
1-20
Publisher
The Academy of Natural Sciences; Philadelphia, PA: The American Ornithologists' Union, Washington, D.C.
Year
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size review Not Reported Not Reported Not Reported Exposure Factor Datasets CANADA, MEXICO, USA

American Kestrel (Falco sparverius)

Citation:

Use of free ranging American kestrels and nest boxes for contaminant risk assessment sampling: a field application

Author(s)
Craft, Randall A. and Karen P. Craft
Pages
207-212
Year
Issue
4
Volume
30
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 4.4 mean clutch size (4 sample years) eggs/clutch Female Adult 7-23 nests/year Lucas and Wayne Counties (40deg57'N, 93deg18'W) Exposure Factor Datasets
Citation:

Hawks, Owls and Wildlife

Author(s)
Craighead, John J. and Frank C. Craighead, Jr.
Pages
443
Publisher
Dover Publications, Inc.
Year
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 4.4 eggs/clutch Female Adult 10 nests Jackson Hole Exposure Factor Datasets
Citation:

American kestrel reproduction and dispersal in central Wisconsin

Author(s)
Jacobs, Eugene A.
Pages
135-137
Year
Issue
2
Volume
29
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 4.1 mean brood size (13 sample years) young/nest Not Reported Juvenile 37 successful nests Portage County (44deg27'N, 89deg40'W) Exposure Factor Datasets

Deer Mouse (Peromyscus maniculatus ssp. bairdii)

Citation:

Reproduction by Peromyscus maniculatus: size and compromise

Author(s)
Myers, Philip and Lawrence L. Master
Pages
1-18
Year
Volume
64
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size #/litter Female Adult Not Reported Exposure Factor Datasets Laboratory
Citation:

Ambient temperature and rainfall: an effect on sex ratio and litter size in deer mice

Author(s)
Myers, Philip, Lawrence L. Master and R. Angelitos Garrett
Pages
289-298
Year
Volume
66
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Lab
Clutch or Litter Size 5.0 "not high" temperature group #/litter Both Male and Female Neonate 150 captured pregnant mice in spring at Ann Arbor, MI Exposure Factor Datasets 0 d Laboratory
Clutch or Litter Size 5.6 "not high" temperature group #/litter Both Male and Female Neonate 98 captured pregnant mice during fall at Ann Arbor, MI Exposure Factor Datasets 0 d Laboratory

Pallid Bat (Antrozous pallidus)

Citation:

Bats of America

Author(s)
Barbour, R.W. and W.H. Davis
Pages
285
Publisher
University of Kentucky Press
Year
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size Review Both Male and Female Not Reported Not Reported Exposure Factor Datasets
Citation:

Antrozous pallidus

Author(s)
Hermanson, John W. and Thomas J. O'Shea
Pages
1-8
Year
Volume
213
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size Review Both Male and Female Not Reported Not Reported Exposure Factor Datasets
Citation:

Litter size and postnatal growth rate in the pallid bat, Antrozous pallidus

Author(s)
Bassett, John E.
Pages
317-319
Year
Issue
2
Volume
65
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size #/litter Female Adult 40 bats Napa, CA Exposure Factor Datasets Napa

San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)

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

Coachella Valley Fringe-toed Lizard (Uma inornata)

Citation:

Reproduction in the sand-dwelling lizard Uma inornata

Author(s)
Mayhew, Wilbur W.
Pages
39-55
Year
Issue
1
Volume
21
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 2.8 eggs/clutch Female Adult 61 Coachella Valley Exposure Factor Datasets Riverside

Western Grebe (Aechmophorus occidentalis)

Citation:

Nesting ecology and production of western grebes at Bear River Migratory Bird Refuge, Utah

Author(s)
Lindvall, Mark L. and Jessop B. Low
Pages
66-70
Year
Issue
1
Volume
84
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2.6 mean clutch size eggs Female Adult 70 nests Bear River Migratory Bird Refuge Exposure Factor Datasets

Western Skink (Eumeces skiltonianus)

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
Clutch or Litter Size 4.7 eggs/clutch Female Adult 6 Exposure Factor Datasets San Bernardino
Citation:

Clutch and egg size in several species of lizards from the desert southwest

Author(s)
Punzo, Fred
Pages
414-417
Year
Volume
16
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size 4.7 based on oviducal egg counts eggs/clutch Female Adult 6 Exposure Factor Datasets San Bernardino
Citation:

A taxonomic and ecological study of the western skink (Eumeces skiltonianus)

Author(s)
Tanner, Wilmer W.
Pages
59-94
Year
Volume
17
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/clutch Female Adult 8 clutches Exposure Factor Datasets

Light-footed Clapper Rail (Rallus longirostris ssp. levipes), California Clapper Rail (Rallus longirostris ssp. obsoletus), Yuma Clapper Rail (Rallus longirostris ssp. yumanensis)

Citation:

Clapper Rail

Author(s)
Eddleman, William R. and Courtney J. Conway
Pages
167-179
Publisher
The International Association of Fish and Wildlife Agencies
Year
Exposure Endpoint Type Endpoint Value Location Type Countries
Clutch or Litter Size review Exposure Factor Datasets USA

Coyote (Canis latrans)

Citation:

Ecology of coyotes in Iowa

Author(s)
Andrews, Ronald D. and Edward K. Boggess
Pages
249-265
Publisher
Academic Press
Year
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range of 5 yearly averages pups/litter Female Adult 5 yrs Exposure Factor Datasets

Kit Fox (Vulpes macrotis ssp. nevadensis)

Citation:

Ecology and life history of the kit fox in Tooele County, Utah

Author(s)
Egoscue, Harold J.
Pages
481-497
Year
Issue
3
Volume
43
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size pups/litter Female Adult 11 litters Tooele County, west. UT Exposure Factor Datasets

Deer Mouse (Peromyscus maniculatus ssp. nubiterrae)

Citation:

Comparative population ecology of Peromyscus leucopus and Peromyscus maniculatus

Author(s)
Wolff, Jerry O.
Pages
1548-1555
Year
Volume
63
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 3.4 based on embryo counts #/litter Female Adult 52 Mountain Lake Biological Station, Giles County [lat., 37^010'N; long., 80^o30' W] Exposure Factor Datasets 0.07 SE

Mallard duck (Anas platyrhynchos)

Citation:

Duck nesting in fields of undisturbed grass-legume cover

Author(s)
Duebbert, H.F. and J.T. Lokemoen
Pages
39-49
Year
Issue
1
Volume
40
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 8.6 eggs Female Adult 100 western Edmunds Co., South Dakota Exposure Factor Datasets
Citation:

Homing and reproductive habits of mallards, gadwalls, and blue-winged teal

Author(s)
Lokemoen, John T., Harold F. Duebbert and David E. Sharp
Pages
1-28
Year
Volume
106
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Age-Specific Error
Clutch or Litter Size 8.49 eggs Female Adult 57 prairie pothole region of North Dakota Exposure Factor Datasets second year 1.23 SE
Clutch or Litter Size 8.96 eggs Adult 78 prairie pothole region of North Dakota Exposure Factor Datasets after second year 1.38 SE

Merriam's Kangaroo Rat (Dipodomys merriami)

Citation:

Reproduction and food habits of Merriam's kangaroo rat, Dipodomys merriami

Author(s)
Bradley, W. Glenn and Roger A. Mauer
Pages
497-507
Year
Issue
3
Volume
52
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2.6 estimated by embryo counts pups /litter Female Adult 163 Las Vegas Valley, Clark County (elev., 2500 ft) Exposure Factor Datasets
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 Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 2.8 young/litter Female Adult Not Reported captured in Clark County, NV Exposure Factor Datasets Laboratory

Island Night Lizard (Xantusia riversiana)

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 Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size range of average number of young produced/female at 3 sites young/female Female Adult 2-25 San Clemente, San Nicolas and Santa Barbara Islands Exposure Factor Datasets

Pacific Giant Salamander (Dicamptodon tenebrosus)

Citation:

Nests and eggs of the pacific giant salamander, Dicamptodon ensatus (Eschscholtz)

Author(s)
Nussbaum, Ronald A.
Pages
257-262
Year
Volume
25
Exposure Endpoint Type Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size eggs/clutch Female Adult 2 Benton County Exposure Factor Datasets

Double-crested Cormorant (Phalacrocorax auritus)

Citation:

Breeding biology of the double-crested cormorant on Utah Lake

Author(s)
Mitchell, Ronald M.
Pages
1-23
Year
Volume
37
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 3.8 eggs/nest Female Adult Not Reported Utah Lake, Utah County Exposure Factor Datasets

Northern Flicker (Colaptes auratus)

Citation:

Notes on egg-laying, incubation, and nestling periods and of food brought to the nest by four species of cavity-nesting birds

Author(s)
Duyck, Bill E. and Douglas B. McNair
Pages
21-29
Year
Issue
2
Volume
55
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 8 first clutch size eggs/clutch Female Adult 1 nest Asheville, Buncombe County Exposure Factor Datasets

California Least Tern (Sterna antillarum ssp. browni)

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
Clutch or Litter Size range of average clutch sizes over 2 years eggs/clutch Not Reported Both Adults and Juveniles 230-336 nests Santa Margarita River at Camp Pendleton Exposure Factor Datasets Orange
Citation:

Reproduction and breeding success of California least terns in Jalisco, Mexico

Author(s)
Garcia, Andres, and Gerardo Ceballos
Pages
1084-1087
Year
Volume
97
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Countries
Clutch or Litter Size range of average clutch sizes, 2 years eggs/clutch Female Adult 16-58 nests/year Cuixmala Beach [19 deg, 22'14"N, 104 deg 59'31"W] Exposure Factor Datasets MEXICO

San Joaquin Fence Lizard (Sceloporus occidentalis ssp. biseriatus)

Citation:

Ovarian cycle of the western fence lizard, Sceloporus occidentalis

Author(s)
Goldberg, Stephen R.
Pages
284-289
Year
Issue
3
Volume
29
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type California Counties
Clutch or Litter Size CS = 0.378SVL - 17.04 regression equation relating clutch size (CS; # eggs/oviduct) to snout-vent length (SVL, mm) of female. eggs/clutch Female Adult 49 Puente Hills and San Gabriel River, Whittier Exposure Factor Datasets Los Angeles
Clutch or Litter Size eggs/clutch Female Adult 49 Puente Hills and San Gabriel River, Whittier Exposure Factor Datasets Los Angeles
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 Units Sex Life Cycle Stage Sample Size Location Type California Counties Error
Clutch or Litter Size 7.23 eggs/clutch Female Adult 43 Puente Hills, Whittier (elev., 150 m) Exposure Factor Datasets Los Angeles 3.30SD

Mourning Dove (Zenaida macroura)

Citation:

Reproductive success of mourning doves near a nuclear generating plant

Author(s)
Faanes, Craig A.
Pages
201-204
Year
Issue
4
Volume
49
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 1.8 mean clutch size Female Adult 524 nests Prairie Island Nuclear Generating Plant Exposure Factor Datasets
Citation:

Crop milk and clutch size in mourning doves

Author(s)
Blockstein, David E.
Pages
11-25
Year
Issue
1
Volume
101
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size 2 clutch size in 97.2% of observed nests Female Adult 1203 nests J. Clark Salyer National Wildlife Refuge Exposure Factor Datasets

Pacific Treefrog (Pseudacris regilla formerly Hyla regilla)

Citation:

Multiple egg clutches in Hyla regilla, H. cinerea and H. gratiosa

Author(s)
Perrill, Stephen A. and Richard E. Daniel
Pages
513-516
Year
Volume
1983
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Error
Clutch or Litter Size 267.7 eggs/clutch Female Adult 40 San Diego Exposure Factor Datasets 128.7 SD

Common Garter Snake (Thamnophis sirtalis)

Citation:

Annual variation in reproduction in snakes in a fluctuating environment

Author(s)
Seigel, R.A. and H.S. Fitch
Pages
497-505
Year
Volume
54
Exposure Endpoint Type Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size minimum and maximum mean annual clutch size young/litter Female Adult 158 over 9 yrs National History Reservation Exposure Factor Datasets

Gilded flicker (Colaptes auratus ssp. chrysoides)

Citation:

Clutch size of the gilded flicker

Author(s)
Koenig, Walter D.
Pages
89-90
Year
Volume
86
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Sample Size Location Type Lab
Clutch or Litter Size 4.20 average size of clutches existing in North American oological collections eggs/clutch Female Adult 57 clutches Exposure Factor Datasets Laboratory

Song Sparrow (Melospiza melodia)

Citation:

Determinants of lifetime reproductive success in the song sparrow

Author(s)
Smith, James N. M
Pages
154-172
Publisher
University of Chicago Press
Year
Exposure Endpoint Type Endpoint Value Units Sex Life Cycle Stage Sample Size Location Type Countries Error
Clutch or Litter Size 11.1 numbers of eggs laid Female Adult 79 females Mandarte Island Exposure Factor Datasets CANADA 0.76

Southwestern Willow Flycatcher (Empidonax traillii ssp. extimus)

Citation:

A southwestern willow flycatcher natural history summary and survey protocol

Author(s)
Sogge, Mark K., Robert M. Marshall, Susan J. Sferra, and Timothy J. Tibbitts
Pages
42 pp
Publisher
U.S. Department of the Interior, National Park Service
Year
Exposure Endpoint Type Endpoint Value Sex Life Cycle Stage Sample Size Location Type
Clutch or Litter Size review Not Reported Not Reported Not Reported Exposure Factor Datasets

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
Clutch or Litter Size 307 eggs/clutch Female Adult 5 Valencia Lagoon, Rio Del Mar Exposure Factor Datasets Santa Cruz
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