â¢â¯No I or E â¢â¯Linear density dependence (of b and/or d on population) â¢â¯Constant carrying capacity â¢â¯No genetic structure â¢â¯No age or size structure â¢â¯No time lag. Logistic Growth Pearl and Reed (1920) derived the logistic equation and used it to predict a carrying capacity for the U.S. population, using census data. The logistic curve fit the U.S. data well, through 1950. After that, however, the actual population size differed considerably from the predicted curve.
Zelda Sayre Fitzgerald was born in Montgomery, Alabama. She was strikingly beautiful and intelligent, but wild and impatient with learning. In the summer of 1918, shortly after graduating from high school, she met an Army lieutenant and aspiring novelist named F. Scott Fitzgerald at a dance at the Montgomery Country Club.
Defying her parents, Zelda continued to see F. Scott and the couple married just before her 20th birthday. The pair left to live in New York, the setting for many of Fitzgerald's most famous novels, and at the beginning of the Roaring Twenties, a glitteringly decadent place to be.