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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 Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Time of Hatching or Parturition Aug. Not Reported Hatchling San Gabriel Mountains, Crystal Lake (elev., 1584 m) Not Reported Exposure Factor Datasets
Body Weight - Mean 15.3 average snout-vent length = 75mm g Not Reported Adult San Gabriel Mountains, Crystal Lake (elev., 1584 m) Not Reported Exposure Factor Datasets
Body Weight - Mean 11.1 average snout-vent length = 67mm g Not Reported Adult Puente Hills, Whittier (elev., 150 m) Not Reported Exposure Factor Datasets
Time of Torpor or Hibernation Nov.-Feb. Not Reported Adult Puente Hills, Whittier (elev., 150 m) Not Reported Exposure Factor Datasets
Time of Torpor or Hibernation Nov. - Mar. Not Reported Adult San Gabriel Mountains, Crystal Lake (elev., 1584 m) Not Reported Exposure Factor Datasets
Clutches or Litters per year 1-3 clutches/yr Female Adult Puente Hills, Whittier (elev., 150 m) Not Reported Exposure Factor Datasets
Clutches or Litters per year 1-2 clutches/yr Female Adult San Gabriel Mountains, Crystal Lake (elev., 1584 m) Not Reported Exposure Factor Datasets

Anas platyrhynchos

Citation:

Spring-summer survival rates of yearling versus adult mallard females

Author(s)
Reynolds, Ronald E., Robert J. Blohm, James D. Nichols and James E. Hines
Pages
691-696
Year
Issue
4
Volume
59
Exposure Endpoint Type Endpoint Value Endpoint Description Error Sex Life Cycle Stage Location Sample Size Type
Survival/ Mortality 0.728 spring-summer survival (proportion) 0.079 (SE) Female Yearling Alberta, Saskatchewan, Manitoba 1,246 Exposure Factor Datasets
Survival/ Mortality 0.915 summer to spring survival (proportion) 0.090 (SE) Female Adult Alberta, Saskatchewan, Manitoba 11,139 Exposure Factor Datasets
Citation:

Reproductive capacities of control mallard ducks (Anas platyrynchos) during a one-generation reproduction study

Author(s)
Piccirillo, V.J. and R.P. Quesenberry
Pages
133-140
Year
Issue
5/6
Volume
4
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Type
Food Ingestion Rate 574.7-1182.8 g/wk range of mean food consumption over the breeding period Both Male and Female Adult 90 Exposure Factor Datasets
Citation:

Relative success of overwater and upland mallard nests in southwestern Manitoba

Author(s)
Arnold, T.W., M.D. Sorenson, and J.J. Rotella
Year
Issue
3
Volume
57
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Hatching Success 43.9% nest success rate (Mayfield method) among overwater nests Female Adult Minnedosa, Manitoba 47 Exposure Factor Datasets
Hatching Success 12.2% nest success rate (Mayfield method) among upland nests Female Adult Minnedosa, Manitoba 49 Exposure Factor Datasets
Citation:

Food use by migratory female mallards in northwest Missouri

Author(s)
Gruenhagen, Ned. M. and Leigh H. Fredrickson
Pages
622-626
Year
Issue
4
Volume
54
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Dietary Composition plant (82.9-98.4%), and invertebrates (1.6-17.1%) ranges of mean aggregate percent dry mass (stomach contents of ducks from different habitats) Female Both Adults and Juveniles Squaw Creek National Wildlife Refuge 123 Exposure Factor Datasets
Citation:

Repeatability of wing molt timing of mallards in relation to breeding

Author(s)
Leafloor, James O. and Bruce D.J. Batt
Pages
2620-2624
Year
Volume
68
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Type
Time of Molt July 21-27 mean annual date of molt initiation (over 3 yr) Male Adult 126 Exposure Factor Datasets
Time of Molt July 30-August 10 mean annual date of molt initiation (over 3 yr) Female Adult 131 Exposure Factor Datasets
Citation:

The Central, Imperial, and Coachella Valleys of California

Author(s)
Heitmeyer, Mickey E., Daniel P. Connelly, and Roger L. Pederson
Pages
475-505
Publisher
Texas Tech University Press
Year
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Population Density 314,712 mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 Both Male and Female Both Adults and Juveniles Sacramento Valley Not Reported Exposure Factor Datasets
Population Density 30,438 mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 Both Male and Female Both Adults and Juveniles San Joaquin Valley Not Reported Exposure Factor Datasets
Population Density 15,221 mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 Both Male and Female Both Adults and Juveniles Suisun Marsh Not Reported Exposure Factor Datasets
Population Density 4,667 mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 Both Male and Female Both Adults and Juveniles San Francisco Delta Not Reported Exposure Factor Datasets
Population Density 389 mean number of ducks counted in U.S. Fish and Wildlife Service mid-winter inventories 1978-1987 Both Male and Female Both Adults and Juveniles Imperial and Coachella Valleys Not Reported Exposure Factor Datasets
Citation:

A nesting study of ducks and coots on Tule Lake and Lower Klamath National Wildlife Refuges

Author(s)
Miller, A.W. and B.D. Collins
Pages
17-37
Year
Issue
1
Volume
40
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Hatching Success 85.2% proportion of observed nests with at least one successful hatch Female Adult Tule Lake and Lower Klamath River National Wildlife Refuges 209 Exposure Factor Datasets
Time of Nesting April-September period between first observed nest to last observed hatches Female Adult Tule Lake and Lower Klamath River National Wildlife Refuges 209 Exposure Factor Datasets
Clutch or Litter Size 8.9 mean clutch size of successful nests eggs Female Adult Tule Lake and Lower Klamath River National Wildlife Refuges 178 Exposure Factor Datasets
Hatching Success 91.4% Mean hatch success of successful nests Female Adult Tule Lake and Lower Klamath River National Wildlife Refuges 178 Exposure Factor Datasets
Time of Hatching or Parturition May-July Female Adult Tule Lake and Lower Klamath River National Wildlife Refuges Not Reported Exposure Factor Datasets
Citation:

Molt migration of postbreeding female mallards from Suisun Marsh, California

Author(s)
Yarris, Gregory S., M. Robert McLandress and Alison E.H. Perkins
Pages
36-45
Year
Volume
96
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Time of Migration or Dispersal May 22 to July 10 timing of departure from breeding grounds Female Adult Suisun Marsh, Grizzly Island 34 Exposure Factor Datasets
Citation:

Foods used by male mallards wintering in southeastern Missouri

Author(s)
Combs, Daniel L. and Leigh H. Fredrickson
Pages
603-610
Year
Issue
3
Volume
60
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Location Sample Size Type
Dietary Composition total plant seeds (19.3%), total grain (5.7%), acorns (64.5%), total vegetation (0.9%), tubers/rhizomes (5.1%), invertebrates (4.6%) mean aggregate % dry mass of foods collected in mallard stomachs (one season) Male Both Adults and Juveniles Mingo National Wildlife Refuge 104 Exposure Factor Datasets
Citation:

The fasting metabolism of subadult mallards acclimatized to low ambient temperatures

Author(s)
Smith, Kirtland G. and Harold H. Prince
Pages
330-335
Year
Volume
75
Exposure Endpoint Type Endpoint Value Endpoint Description Sex Life Cycle Stage Sample Size Type
Metabolic Rate y = 1.970 - 0.054x (r-squared = 0.932) metabolic rate (ml O^2/g/h)-ambient temperature (celcius) relationship Male Juvenile 20 Exposure Factor Datasets
Metabolic Rate y = 1.780 - 0.052x (r-squared = 0.882) metabolic rate (ml O^2/g/h)-ambient temperature (celcius) relationship Female Juvenile 20 Exposure Factor Datasets
Citation:

Distribution and survival of mallards banded at Malheur National Wildlife Refuge

Author(s)
Jarvis, Robert L., and Sean B. Furniss
Pages
292-301
Year
Issue
3
Volume
52
Exposure Endpoint Type Endpoint Value Endpoint Description Error Sex Life Cycle Stage Location Sample Size Type
Survival/ Mortality 0.377 estimated annual survival rate (1960-1971) 0.046 (SE) Male Juvenile Malheur National Wildlife Refuge Not Reported Exposure Factor Datasets
Survival/ Mortality 0.628 estimated annual survival rate (1960-1971) 0.035 (SE) Male Adult Malheur National Wildlife Refuge Not Reported Exposure Factor Datasets
Survival/ Mortality 0.569 estimated annual survival rate (1960-1971) 0.105 (SE) Female Juvenile Malheur National Wildlife Refuge Not Reported Exposure Factor Datasets
Survival/ Mortality 0.586 estimated annual survival rate (1960-1971) 0.081 (SE) Female Adult Malheur National Wildlife Refuge Not Reported Exposure Factor Datasets
Citation:

Laying dates, clutch size and egg weight of captive mallards

Author(s)
Batt, Bruce D.J., and Harold H. Prince
Pages
35-41
Year
Volume
81
Exposure Endpoint Type Endpoint Value Endpoint Description Error Units Sex Life Cycle Stage Sample Size Type
Clutch or Litter Size 10.4 mean clutch size from first nesting attempt 0.2 (SE) eggs Female Adult 151 Exposure Factor Datasets

Peromyscus maniculatus

Citation:

Uptake of environmental contaminants by small mammals in pickleweed habitats of San Francisco Bay, California

Author(s)
Clark, Jr., Donald R., Kevin S. Foerster, Carolyn M. Marn and Roger L. Hothem
Pages
389-396
Year
Volume
22
Exposure Endpoint Type Endpoint Value Endpoint Description Error Range Units Sex Life Cycle Stage Location Sample Size Type
Clutch or Litter Size 4.7 litter size estimated from counts of uterine scars and embryos 0.7 SE 3 - 7 #/litter Female Adult salt marsh, San Pablo and San Francisco Bays 6 Exposure Factor Datasets

Lithobates catesbeianus

Citation:

An analysis of the food habits of the bullfrog by body size, sex, month, and habitat

Author(s)
Brooks, G. R., Jr.
Pages
173-186
Year
Volume
15
Exposure Endpoint Type Endpoint Value Endpoint Description Units Sex Life Cycle Stage Location Sample Size Type
Dietary Composition Insecta (51.8%); Arachnida (11.2%); Amphibia (2.8%); Diploda (1.3%); Gastropoda (1.3%); Crustacea (1.4%);Teleosts (1.1%); Mammalia (0.2%); Oligochaeta (1.3%); Reptilia (0.2%); Pebbles and sand (3.4%); Vegetative material (12.5%); Digested material (11.6%) % occurrence of item; obtained by dividing # of a specific item taken by total # of items; based on stomach contents Both Male and Female Both Adults and Juveniles ponds, Hanover County 129 Exposure Factor Datasets
Dietary Composition Insecta (20.6%); Arachnida (4.8%); Amphibia (27.4%); Diploda (0.3%); Gastropoda (1.0%); Crustacea (4.3%);Teleosts (0.6%); Mammalia (5.0%); Oligochaeta (1.3%); Reptilia (6.4%); Pebbles and sand (8.0%); Vegetative material (12.3%); Digested material (7.3%) % weight of an item; obtained by dividing the weight of a specific item by the total weight of all items; obtained from stomach contents Both Male and Female Both Adults and Juveniles ponds, Hanover County 129 Exposure Factor Datasets
Food Ingestion Rate 0.4 average weight of stomach contents for frogs with an average body weight of 17.5 g g Both Male and Female Not Reported ponds, Hanover County 78 Exposure Factor Datasets
Food Ingestion Rate 2.33 average weight of stomach contents for frogs with an average body weight of 106.3 g g Both Male and Female Not Reported ponds, Hanover County 42 Exposure Factor Datasets
Food Ingestion Rate 4.6 average weight of stomach contents for frogs with an average body weight of 248.7 g g Both Male and Female Not Reported ponds, Hanover County 18 Exposure Factor Datasets
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