Feeding rates, parental investment, and brood reduction in Caspian terns (Sterna caspia)

Fresh egg-weights and feeding rates to chicks were related to chick survival as one means of quantifying apportionment of parental investment wi thin broods of Caspian Terns (SterDI casRla) at a colony in Georgian Bay. Lake Huron, during 1978 and 1979. Ftrst-laid eggs from 2-egg clutches were Significantly heavier and usually hatched one to three days earlier than second-laid eggs in both years of the study. In both years, first-hatched chicks were larger and generally better fed than second-hatched siblings. The disparity between feedIng rates of first- and second-hatched ehicks was greater in 1979. Brood feeding I rates correlated positively with the percentage of food fed to the least-fed sibUng through the period of B-chick ages zero to 10 days in 1978. I suggest that after this age period, parental control over whlcb cbick was fed diminished. In 1978, 10 of 16 secondhatched chicks were fed more than their older siblings during their first 5 days. 'lb.is is interpreted as a parental response to reduce the competitive advantage of the larger first-hatched chicks. Most chick losses were apparently caused by starvation or preda. tion. In 1979, seeorvl-hatched chick disappearance (due to predation) was -related to low feeding rates, whereas first-hatched chick disappearance was related to low fresh egg-weights.. First-hatched chicks survived better than second-hatched chicks both years, and more pairs fledged two chicks in 1978. Maximum estimated feeding rates at the nest and fledging ages suggested that food was more avatlable in 1978 than in 1979. In 1979, second eggs apparently functioned as "insurance" eggs. When the first-laid egg falled to hatch, or the first-hatched chick died, the second-hatched chick was often successfully fledged. When first-hatched chicks survived, the second-hatched chick usually starved or was preyed upon, reducing the brood to one chick. Parental investment patterns favored first-hatched chicks. Brood reduction, when employed, discouraged total nest failure, however, under appropriate conditions, brood reduction was avoided and full broods (or two chicks) were fledged.

Royal Insurance Company Receipt - 1884

A receipt for Royal Insurance Company British and Foreign, dated 12 April 1884. The receipt reads" Royal Insurance Company British and Foreign Assets: Upwards of $27,000,000 No. 133848 Grimsby Agency, April 12th 1884 Received from Mrs. Adolphus Nelles the sum of Ten Dollars, being the premium for an Insurance against Loss or Damage by Fire, effected with this Company, to the extent of $1200.00 on Property described in Application of this date, for 36 months, subject to the "Statutory" Conditions (endorsed hereon) of the Policy which will be issued within Thirty Days unless the Application is declined within that period, in which case the amount received will be refunded, less the Premium for the time so insured. Premium $9.00 this receipt not valid unless countersigned by N.V. Hare Sub-Agt. Countersigned by David McLellan Agent.

Fire Insurance - Cowan & Parks 1851

A fire insurance policy in the amount of one thousand dollars through Aetna Insurance Company of Utica, New York. The cost of twenty two dollars and twenty five cents would give them a one year insurance policy from August 1851 through August 1852.

Insurance Policy issued to William Woodruff

Insurance Policy issued by the Columbus Insurance Company of Columbus, Ohio to William Woodruff of St. Davids, Ontario on a detached brick building situated on Lot no. 6 on St. Paul Street, St. Catharines. This is fire policy no. 113, book 1, folio 112, April 11, 1884.

Certificate for Eight Shares of Capital Stock in Insurance Investments Limited

Certificate for 8 shares of capital stock in Insurance Investments Limited to Hamilton K. Woodruff, Aug. 12, 1929.

Certificate for Five and Four Fifths Shares of Capital Stock in Insurance Investments Limited

Certificate for 5 4/5 shares of capital stock in Insurance Investments Limited to Hamilton K. Woodruff, Jan. 15, 1930.

Cogswell, Maria, includes: Application for loan on Real Estate, Insurance Policy, Mortgage Loan Envelope

Cogswell, Maria, includes: Application for loan on Real Estate, Feb. 20, 1882; Insurance Policy no. 2199780 from the Royal Insurance Company of Liverpool, March 17, 1887 and Mortgage Loan Envelope for mortgage no. 1535 from March 1, 1882 – March 1, 1887.

Printed blank from Frank Pearce and Co. Shipping and Insurance Agents

Printed blank from Frank Pearce and Co. Shipping and Insurance Agents regarding the bill of landing for the porcelain cask, Oct. 26, 1876.

Insurance policy (tourists’ policy) to insure Annie L. Woodruff for 1 year

Insurance policy (tourists’ policy) to insure Annie L. Woodruff for 1 year. This is accompanied by an envelope, Oct. 21, 1921.

Letter to Mr. Summer and Mr. Nelles from the Office of the N.D. Mutual Insurance Company of St. Catharines

Letter to Mr. Summer and Mr. Nelles from the Office of the N.D. Mutual Insurance Company of St. Catharines regarding an assessment of 4 % on the premium notes of this company. This is signed by Mr. Arnold, secretary of N.D. Mutual F. Insurance Company, Aug. 9, 1848.

Letter to Robert Nelles from the Office of the N.D. Mutual Fire Insurance Company

Letter to Robert Nelles from the Office of the N.D. Mutual Fire Insurance Company regarding an assessment of 5% on the premium notes of this company. This is signed by Mr. Arnold, secretary of the N.D. Mutual F. Insurance Company, Dec. 15, 1849.

Insurance policy made to Henry Nelles of Grimsby covering a property in Grimsby, Upper Canada

Insurance policy made to Henry Nelles of Grimsby covering a property in Grimsby, Upper Canada from the Phoenix Fire Office of Montreal, July 15, 1831.

Insurance Policy from the Quebec Fire Assurance Company to Mr. Joseph Power Bradley

Insurance Policy from the Quebec Fire Assurance Company to Mr. Joseph Power Bradley for his household furniture, linen wearing apparels, glass, earthenware and printed books in a house occupied as a dwelling and belonging to Joseph Legare Junt in the town of Quebec, Oct. 10, 1830

The association between maternity insurance, residence status and selected perinatal outcomes among Chinese women

Objective: To investigate the impact of maternity insurance and maternal residence on birth outcomes in a Chinese population. Methods: Secondary data was analyzed from a perinatal cohort study conducted in the Beichen District of the city of Tianjin, China. A total of 2364 pregnant women participated in this study at approximately 12-week gestation upon registration for receiving prenatal care services. After accounting for missing information for relevant variables, a total of 2309 women with single birth were included in this analysis. Results: A total of 1190 (51.5%) women reported having maternity insurance, and 629 (27.2%) were rural residents. The abnormal birth outcomes were small for gestational age (SGA, n=217 (9.4%)), large for gestational age (LGA, n=248 (10.7%)), birth defect (n=48 (2.1%)) including congenital heart defect (n=32 (1.4%)). In urban areas, having maternal insurance increased the odds of SGA infants (1.32, 95%CI (0.85, 2.04), NS), but decreased the odds of LGA infants (0.92, 95%CI (0.62, 1.36), NS); also decreased the odds of birth defect (0.93, 95%CI (0.37, 2.33), NS), and congenital heart defect (0.65, 95%CI (0.21, 1.99), NS) after adjustment for covariates. In contrast to urban areas, having maternal insurance in rural areas reduced the odds of SGA infants (0.60, 95%CI (0.13, 2.73), NS); but increased the odds of LGA infants (2.16, 95%CI (0.92, 5.04), NS), birth defects (2.48, 95% CI (0.70, 8.80), NS), and congenital heart defect (2.18, 95%CI (0.48, 10.00), NS) after adjustment for the same covariates. Similar results were obtained from Bootstrap methods except that the odds ratio of LGA infants in rural areas for maternal insurance was significant (95%CI (1.13, 4.37)); urban residence was significantly related with lower odds of birth defect (95%CI (0.23, 0.89)) and congenital heart defect (95%CI (0.19, 0.91)). Conclusions: whether having maternal insurance did have an impact on perinatal outcomes, but the impact of maternal insurance on the perinatal outcomes showed differently between women with urban residence and women with rural residence status. However, it is not clear what are the reason causing the observed differences. Thus, more studies are needed.