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| Exposure Endpoint Type | Endpoint Value | Location | Sample Size | Type |
|---|---|---|---|---|
| Time of Mating/ Laying | January | Small Islands of Bahía Santa María- La Reforma, Sinaloa, México | 2-3 surveys/y | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | 1995: 181, 1996: 184, 1997: 199 | Clutch initiation dates | Julian date | Embryo | Cow Island, lower Mississippi River | 1995: 546, 1996: 272, 1997: 182 | Exposure Factor Datasets |
| Time of Mating/ Laying | 1995: 183, 1996: 187, 1997: 187 | Clutch initiation dates | Julian date | Embryo | Porter Lake, lower Mississippi River | 1995: 195, 1996: 371, 1997: 372 | Exposure Factor Datasets |
| Time of Mating/ Laying | 1995: 187, 1996: 192 1997: 187 | Clutch initiation dates | Julian date | Embryo | St. Francis, lower Mississippi River | 1995: 255, 1996: 196, 1997: 382 | Exposure Factor Datasets |
| Time of Mating/ Laying | 1995: 179, 1996: 182, 1997: 161 | Clutch initiation dates | Julian date | Embryo | Kangaroo Pt., lower Mississippi River | 1995: 240, 1996: 161, 1997: 481 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Error | Location | Sample Size | Type |
|---|---|---|---|---|---|
| Time of Mating/ Laying | 43267 | 2.5 | Orizaba Rock, Santa Cruz Island | 96 | Exposure Factor Datasets |
| Time of Mating/ Laying | 43257 | 2.1 | Cave of the Birds' Eggs, Santa Cruz Island | 156 | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Units | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | See citation Figure 1 | Time of nesting activities (mating, laying, nesting) | Month | B | Adult | Isla Montague, northern Gulf of California | See citation | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | April 4 - July (median = May) | time of clutch initiation | Female | Adult | eastern - south central North Dakota, near Jamestown | 265 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Sex | Life Cycle Stage | Location | Type |
|---|---|---|---|---|---|
| Time of Mating/ Laying | April 10 (end) | southern part of U.S. breeding range | Exposure Factor Datasets | ||
| Time of Mating/ Laying | March 25 (begin) - May 20 (end) | Not Reported | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | late March | beginning of lay | Both Male and Female | Hatchling | south San Francisco Bay | Not Reported | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | early July | peak of laying period | Female | Adult | Bear River Migratory Bird Refuge | 386 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | May-Jul | period of egg laying, 2 years | Female | Adult | Sunset Aquatic Park, Huntington Beach | 2 colonies | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | May-early Jul (first wave), late May-Aug (second wave) | nesting periods of early (first wave) and late (second wave) birds | Both Male and Female | Adult | NASA Island, Seal Beach National Wildlife Refuge | 8-10 pairs (first wave), 29 pairs (second wave) | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | May to Aug | beginning to end of nesting period | Both Male and Female | Adult | Cuixmala Beach [19 deg, 22'14"N, 104 deg 59'31"W] | 1 colony | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | April 18 to July 15 | period of time from beginning to end of egg laying for one year | Female | Adult | Mono Lake (elev. 1,940 m) | 9 nests | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Mar 23 to Jul 13 | period between onset and end of egg laying | Female | Adult | Pajaro River Mouth | 6-84 clutches laid/month | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | Apr 10-Jul 18 | egg-laying period | Female | Adult | Great Salt Lake, Davis County | 3 yrs data collection | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | April, May | months of peak nest initiation activity, 2 years | Both Male and Female | Adult | coast | 2-15 nests/colony/year | Exposure Factor Datasets |
| Exposure Endpoint Type | Endpoint Value | Endpoint Description | Sex | Life Cycle Stage | Location | Sample Size | Type |
|---|---|---|---|---|---|---|---|
| Time of Mating/ Laying | March 29-June 25 (1991), March 11-June 29 (1992) | length of egg laying season in two sample years | Female | Adult | Fuente de Piedra lake, s. Spain | Not Reported | Exposure Factor Datasets |
