Age at Sexual Maturity
Hoary Bat (Lasiurus cinereus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | y | F | Juvenile | NR | Manitoba | Exposure Factor Datasets | CANADA |
California Leaf-Nosed Bat (Macrotus californicus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | >1 | yr | M | Adult | Exposure Factor Datasets | Sub-adult |
Siskiyou Mountains Salamander (Plethodon stormi)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Location | Type |
|---|---|---|---|---|---|
| Age at Sexual Maturity | y | B | Adult | Exposure Factor Datasets |
California Tiger Salamander (Ambystoma californiense)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Location | Type | California Counties | Countries |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | y | B | Adult | Oak Ridge Ranch | Exposure Factor Datasets | Monterey | USA |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Location | Type | California Counties | Countries |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 4 | y | B | Adult | Exposure Factor Datasets | Solano | USA |
Bullfrog (Lithobates catesbeianus)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | See citation Table II | B | Both Adults and Juveniles | 50 | Vancouver Island | Exposure Factor Datasets | CANADA |
| Age at Sexual Maturity | See citation Table II | B | Both Adults and Juveniles | 241 | 3 populations in France: Gironde Gabauds, Loir et Cher, Perigord Limousin |
Exposure Factor Datasets | FRANCE |
Deer Mouse (Peromyscus maniculatus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 48.72 | based on presence of cornified vaginal epithelial cells | d | Female | Adult | 186 | Exposure Factor Datasets | 1.23 | Laboratory | |
| Age at Sexual Maturity | based on presence of motile sperm | d | Male | Adult | 43 - 79 | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 64.6 | median age at maturity | d | Female | Adult | 139 | Pinawa, Manitoba | Exposure Factor Datasets | CANADA |
| Age at Sexual Maturity | 22.8 | median age at maturity for males is time of weaning. | d | Male | Adult | Not Reported | Pinawa, Manitoba | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | based on presence of recent corpora lutea; ages inferred from body weights | d | Female | Adult | 1546 | western slope of Sierra Nevada (elev., 3500-5000 ft.) | Exposure Factor Datasets | Plumas |
| Age at Sexual Maturity | based on presence of swollen tubules of cauda epididymides and enlarged seminal vesicles, ages inferred from body weights | d | Male | Adult | 1546 | western slope of Sierra Nevada (elev., 3500-5000 ft.) | Exposure Factor Datasets | Plumas |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific | California Counties | Error | Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 17 | years | Both Male and Female | Adult | 23 | Blue Lake, 75 long., 95 lat. |
Exposure Factor Datasets | 2 years | Alpine | 0 | Laboratory |
Sideblotched Lizard (Uta stansburiana)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 10 | mo | Female | Adult | 162 | San Gabriel Mountains (elev., 1585-1829m) | Exposure Factor Datasets | Los Angeles |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | mo | Both Male and Female | Adult | Not Reported | Deschutes River, Jefferson county (elev., 732m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | based on presence of mature spermazoa or yolked ovarian follicles, oviducal eggs or corpora lutea; snout-vent length = 40-43 mm | yr | Both Male and Female | Adult | 275 | Snake River Valley (elev., 530-750m) | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii ssp. audubonii)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | reported as age at sexual maturity as lactation first observed | mo | Both Male and Female | Adult | Not Reported | Sacramento Valley, Durham | Exposure Factor Datasets |
Sea Otter (Enhydra lutris)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 4 | yr | Female | Juvenile | Not Reported | Amchitka Island | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 6.5 | yr | Male | 22 | Central coast | Exposure Factor Datasets |
Mourning Dove (Zenaida macroura)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 93 | age at which birds became capable of breeding | d | Female | Yearling | 91 birds | Exposure Factor Datasets | |
| Age at Sexual Maturity | 80 | age at which birds became capable of breeding | d | Male | Yearling | 79 birds | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 93 | age at which birds were judged capable of reproduction | d | Female | Juvenile | 58 birds | Exposure Factor Datasets | 131 days |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 80-93 | age of puberty attainment | d | Male | Yearling | 79 birds | east-central area | Exposure Factor Datasets |
| Age at Sexual Maturity | 93+ | age of puberty attainment | d | Female | Yearling | 91 birds | east-central area | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | year of hatching | age of earliest sexual maturity, based on gonad sizes and breeding behaviors | Both Male and Female | Juvenile | 75 males, 66 females | near Tuscon | Exposure Factor Datasets |
Brush Rabbit (Sylvilagus bachmani)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | maturity based on presence of adult pelage | mo | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
Red-spotted Garter Snake (Thamnophis sirtalis ssp. concinnus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | yr | Male | Adult | Not Reported | Willamette Valley | Exposure Factor Datasets |
| Age at Sexual Maturity | 2 | yr | Female | Adult | Not Reported | Willamette Valley | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. sonoriensis)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Location | Type | California Counties |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | d | Both Male and Female | Adult | White Mountain (elev. 4500 - 12,400 ft) | Exposure Factor Datasets | Mono |
Desert Tortoise (Gopherus agassizi)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | determined from ages at which females exceeded the minimum carapace length for tortoises with eggs | yr | Female | Adult | Not Reported | Western and Eastern Mojave, Sinaloan and Sonoran deserts | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yr | Female | Adult | Not Reported | Rock Valley, Nye County (elev., 1020m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yr | Female | Adult | Not Reported | Beaver Dam Slope, Washington County (elev., 3200-3500 ft) | Exposure Factor Datasets |
Desert Iguana (Dipsosaurus dorsalis)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | mo | Not Reported | Adult | Not Reported | Thousand Palms | Exposure Factor Datasets | Riverside |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | > 4.5 | yr | Both Male and Female | Adult | Not Reported | Dale Dry Lake, Palm Springs and Algodones Dunes | Exposure Factor Datasets | Imperial, Riverside, San Bernardino |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 45 | minimum adult size at first reproduction, estimated from growth rate | mo | Not Reported | Adult | 22 | Phoenix South Mountain, Maricopa County | Exposure Factor Datasets |
California Ground Squirrel (Spermophilus beecheyi)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 9-10 | mo | Both Male and Female | Juvenile | Not Reported | Santa Barbara; Bell Ranch; Hastings Reservation | Exposure Factor Datasets | Monterey |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | yr | Both Male and Female | Adult | Not Reported | University of California, Santa Cruz Campus [lat., 37^oN; long., 122^oW] | Exposure Factor Datasets | Santa Cruz |
Ensatina (Ensatina eschscholtzii)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yrs | Both Male and Female | Adult | Not Reported | Pinehurst Madrone Grove Park | Exposure Factor Datasets | Contra Costa |
Bullfrog (Lithobates catesbeianus formerly Rana catesbeiana)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | age after metamorphosis; development of secondary sex characteristics | yr | Male | Adult | Not Reported | Crane Pond, E.S. George Reserve | Exposure Factor Datasets |
| Age at Sexual Maturity | age after metamorphosis when produced eggs | yr | Female | Adult | Not Reported | Crane Pond, E.S. George Reserve | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 5 | Average age at maturity, measured in years post-transformation | yr | Female | Adult | 567 | Algonquin Provincal Park, Ontario [lat., 45^o35'N; long., 78^o30'W] | Exposure Factor Datasets | CANADA |
| Age at Sexual Maturity | 3 | Average age at maturity, measured in years post-transformation | yr | Male | Adult | 567 | Algonquin Provincal Park, Ontario [lat., 45^o35'N; long., 78^o30'W] | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yr | Not Reported | Adult | Not Reported | lower Colorado River between Laguna and Morelos Dams | Exposure Factor Datasets |
Audubon's Cottontail (Sylvilagus audubonii ssp. arizonae)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | < 9 | earliest age when pregnancy noted | mo | Female | Adult | Not Reported | southern portion of state | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | minimum age for breeding | mo | Both Male and Female | Adult | Not Reported | Phoenix | Exposure Factor Datasets |
Gopher Snake (Pituophis catenifer formerly Pituophis melanoleucus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | yr | Male | Adult | Not Reported | Snake River Birds of Prey Area, southwestern ID | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. nebrascensis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 60 | youngest age at conception | d | Male | Adult | Not Reported | captured in Alberta, Canada | Exposure Factor Datasets | Laboratory |
| Age at Sexual Maturity | 35 | youngest age at conception | d | Female | Adult | Not Reported | captured in Alberta, Canada | Exposure Factor Datasets | Laboratory |
San Joaquin Kangaroo Rat (Dipodomys nitratoides)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 84 | earliest age of conception | d | Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
San Joaquin Kit Fox (Vulpes macrotis ssp. mutica)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 22 | mo | Both Male and Female | Adult | Not Reported | Elk Hills Naval and Buena Vista Petroleum Reserves | Exposure Factor Datasets | Kern |
Pacific Treefrog (Pseudacris regilla formerly Hyla regilla)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 8 | mo | Not Reported | Adult | Not Reported | Washington County | Exposure Factor Datasets |
Merriam's Kangaroo Rat (Dipodomys merriami)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | yr | Male | Adult | Not Reported | Owens Valley, Big Pine (lat., 37^o11'N) | Exposure Factor Datasets | Inyo |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | <2 | age when reproductive activity observed | mo | Both Male and Female | Adult | 10 | Las Vegas Valley, Clark County (elev., 2500 ft) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | mo | Not Reported | Adult | Not Reported | Portal | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 64 | youngest age of female conceiving | d | Female | Adult | 51 | Exposure Factor Datasets | Laboratory |
Coyote (Canis latrans)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | yr | Both Male and Female | Adult | Not Reported | Rochester, Alberta | Exposure Factor Datasets | CANADA |
Deer Mouse (Peromyscus maniculatus ssp. borealis)
| Exposure Endpoint Type | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | age at first conception | d | Female | Adult | 3 | Original pairs trapped at Heart Lake, Northywest Territories | Exposure Factor Datasets | Laboratory |
San Joaquin Fence Lizard (Sceloporus occidentalis ssp. biseriatus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1-2 | yrs | Female | Adult | Not Reported | Puente Hills and San Gabriel River, Whittier | Exposure Factor Datasets | Los Angeles |
Blunt-nosed Leopard Lizard (Gambelia sila formerly Gambelia silus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 9 (occassionally 21) | based on presence of oviductal eggs and breeding color | mo | Female | Adult | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare |
| Age at Sexual Maturity | mo | Male | Adult | Not Reported | Pixley National Wildlife Refuge, Delano and Kettleman Hills | Exposure Factor Datasets | Kern, Kings, Tulare |
Southern Long-toed Salamander (Ambystoma macrodactylum ssp. sigillatum)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | yrs | Not Reported | Adult | 170 | Bow Valley (elev., 1290-1375m), [lat.,51^o05'N; long., 115^o4'W] | Exposure Factor Datasets | CANADA |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | yrs | Both Male and Female | Adult | Not Reported | Big Meadow (elev., 1980m) and Mosquito Lakes (elev., 2450 m) | Exposure Factor Datasets | Alpine, Calaveras |
Peregrine Falcon (Falco peregrinus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2.8 (female); 2.6 (male) | mean age when first captured as a breeding adult | yr | Both Male and Female | Adult | 20 females; 5 males | Colville, Sagavanirktok, Yukon, and Tanana Rivers | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | review | Not Reported | Adult | Not Reported | Exposure Factor Datasets | USA |
Pallid Bat (Antrozous pallidus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | yr | Female | Yearling | Not Reported | Exposure Factor Datasets | |
| Age at Sexual Maturity | >1 | yr | Male | Adult | Not Reported | Exposure Factor Datasets |
California Vole (Microtus californicus)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 30 | time when females became perforate and males became scrotal | d | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 17 | d | Female | Adult | Not Reported | Brooks Island, San Francisco Bay | Exposure Factor Datasets | Contra Costa |
| Age at Sexual Maturity | 25 | d | Male | Adult | Not Reported | Brooks Island, San Francisco Bay | Exposure Factor Datasets | Contra Costa |
Northern Flicker (Colaptes auratus)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, USA |
Island Night Lizard (Xantusia riversiana)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Error |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2.5 | yr | Male | Adult | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 0.2 SE |
| Age at Sexual Maturity | 2.9 | yr | Female | Adult | Not Reported | Santa Barbara Island | Exposure Factor Datasets | 0.2 SE |
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yr | Both Male and Female | Adult | Not Reported | San Clemente, San Nicolas and Santa Barbara Islands | Exposure Factor Datasets |
Burrowing Owl (Athene cunicularia formerly Speotyto cunicularia)
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Sample Size | Location | Type | Countries |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | review | Not Reported | Not Reported | Not Reported | Exposure Factor Datasets | CANADA, MEXICO, USA |
California Red-legged Frog (Rana draytonii formerly Rana aurora ssp. draytonii)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | yrs | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
Deer Mouse (Peromyscus maniculatus ssp. bairdii)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | d | Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
Western Fence Lizard (Sceloporus occidentalis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 20 | mo | Both Male and Female | Adult | Not Reported | central Sierra Nevada (elev., 1500 or 2200m) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 22-23 | mo | Both Male and Female | Adult | Not Reported | Hastings Reservation, Carmel Valley | Exposure Factor Datasets | Monterey |
Loggerhead Shrike (Lanius ludovicianus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 | yr | Not Reported | Adult | 4 birds | Ada, Elmore, Owyhee Counties | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Location | Type | Countries |
|---|---|---|---|---|
| Age at Sexual Maturity | review | Exposure Factor Datasets | CANADA, USA |
Western Skink (Eumeces skiltonianus)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | yrs | Both Male and Female | Adult | Not Reported | Exposure Factor Datasets |
Stephens' Kangaroo Rat (Dipodomys stephensi)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | mo | Female | Adult | Not Reported | Motte Rimrock Reserve and San Jacinto Wildlife Area | Exposure Factor Datasets | Riverside |
Northern Red-legged Frog (Rana aurora) formerly Rana aurora ssp. aurora
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | yr | Both Male and Female | Adult | Not Reported | Corvallis | Exposure Factor Datasets |
Desert Sideblotched Lizard (Uta stansburiana ssp. stejnegeri)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|
| Age at Sexual Maturity | mo | Both Male and Female | Adult | 1907 | Palo Duro Canyon, Armstrong County (elev., 2000-3600 ft); Kermit , Winkler County and Monahans, Ward County (elev., 2800 ft) | Exposure Factor Datasets |
San Francisco Garter Snake (Thamnophis sirtalis ssp. tetrataenia)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1 yr, 273d | yr,d | Female | Adult | 1 | Dallas and Ft. Worth Zoos | Exposure Factor Datasets | Laboratory |
Striped Skunk (Mephitis mephitis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 10 | months | Female | Adult | 1 female | Exposure Factor Datasets | Laboratory |
Santa Cruz Long-toed Salamander (Ambystoma macrodactylum ssp. croceum)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | yr | Both Male and Female | Adult | Not Reported | Valencia Lagoon, Rio Del Mar | Exposure Factor Datasets | Santa Cruz |
Red-sided Garter Snake (Thamnophis sirtalis ssp. parietalis)
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | yr | Female | Adult | Not Reported | Douglas and Jefferson Counties | Exposure Factor Datasets |
California Least Tern (Sterna antillarum ssp. browni)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | earliest age at which adults were known to breed for the first time | yr | Not Reported | Adult | 186 birds | Venice (beach) | Exposure Factor Datasets | Los Angeles |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | California Counties |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 2 | age of birds nesting for the first time | yr | Both Male and Female | Adult | 10 pairs | NASA Island, Seal Beach National Wildlife Refuge | Exposure Factor Datasets | Orange |
Brown Pelican (Pelecanus occidentalis)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Age-Specific |
|---|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | age of first nesting | yr | Not Reported | Adult | 13 nests | Barataria Bay | Exposure Factor Datasets | 3 yr |
Long-tailed Weasel (Mustela frenata)
| Exposure Endpoint Type | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | d | Male | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
| Exposure Endpoint Type | Endpoint Value | Units | Sex | Life Cycle Stage | Sample Size | Location | Type | Lab |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 3 | mo | Female | Adult | Not Reported | Exposure Factor Datasets | Laboratory |
Brush Rabbit (Sylvilagus bachmani ssp. ubericolor)
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Sample Size | Location | Type |
|---|---|---|---|---|---|---|---|---|
| Age at Sexual Maturity | 1+ | maturity based on amount of sperm in epididymides | yr | Male | Adult | Not Reported | E.E. Wilson Game Management Area, Corvallis | Exposure Factor Datasets |
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