BIOL 4150 Lecture 20: Lecture 20

• School: University of Guelph
• Department: Biology
• Course: BIOL 4150
• Professor: Andrew Mac Dougall

Document Summary

: quantifies a population"s balance between births and deaths through time: developed in the early 1900s insurance industry, abundance, begins with a cohort . : is flat during early and middle life and drops suddenly as death rate increases among the elderly. It is associated with organisms that produce few offspring that are well cared for. (ex. K-type strategists such as grizzly bears and orca whales) mortality (ex. squirrels and hydra freshwater corals) for the young, followed by lower death rates. This type is often associated with organisms such as oysters that produce very many offspring but provide little or no care (r-type strategists) shows very high death rates: type ii, type iii: Mortality and survivorship curves: graphic display of trends, mortality curve [q(x), survivorship curve [l(x)] Survivorship curve for squirrel mortality curve for squirrel. The honey industry needs to know how food quality/type influences honey bee. Fecundity tables and leslie matrices: life table, fecundity table.