Population Growth. The butterfly is an example of a species where we would use the age-specific life table. A population is defined as a group of interbreeding organisms inhabiting the same region at the same time . In studying populations, demography, the study of the age structure of a population, is often considered.
Amador County is located in the Sierra Nevada Mountains of California. As of 2010, the population was 38,091. The county seat is Jackson. Amador County bills itself as The Heart of the Mother Lode and lies within the Gold Country.
The creek, the town, and the county all take their name from the same man, Jose Maria Amador, Indian fighter, rancher, miner. On August 17 of 1835, Amador was granted an immense 16,517 acre tract of land known as the Rancho San Ramon, where he settled down and built one of the few two-story adobes in California.