Population and Survivorship

Front

Characteristics of R-selected species: short lifespan, high offspring production, minimal parental care.

Back

Example: Mouse.

Front

An elephant has 1 offspring, a long lifespan, and provides parental care. This is a:

Back

K-selected species.

Front

High survival rate for most of life, then rapid decline in old age.

Back

Type I survivorship.

Front

Pattern of survival with constant decline in survivorship over time:

Back

Type II survivorship

Front

Survival pattern with low early life survivorship and few reaching adulthood.

Back

Type III survivorship

Front

Population growth rate calculation

Back

Births - Deaths

Front

This graph shows the growth curve:

Back

Exponential

Front

This graph shows a growth curve:

Back

Logistic

Front

Exponential growth in ecosystems levels off at _________.

Back

Carrying capacity

Front

Lowest initial survival rate, but long lifespan if mature:

Back

Oak tree