Chapter 42: Populations

Question 1

Population Density

Answer 1

Is the number of individuals of a species per unit of area (or volume)

Question 2

Population size

Answer 2

Is the total number of individuals in a population

Question 3

Species’ life history

Answer 3

Describes the sequence of key events, such as growth and development, reproduction, and death, that occur during an average individual’s life

Question 4

Demography/Population Ecology

Answer 4

The study of processes that influence birth, death, and population growth rate

Question 5

Habitats

Answer 5

Is the type of natural environment in which a particular species of organism lives

Question 6

Fecundity

Answer 6

Is the average number of offspring each surviving individual produces at those life stages

Question 7

Mortality

Answer 7

Is the fraction of individuals that do not survive from birth to a given state or age

Question 8

What is the equation for mortality?

Answer 8

mortality = 1 - survivorship

Question 9

Survivorship

Answer 9

Is the fraction of individuals that survive birth to different life stages

Question 10

What can be used to calculate per capita growth rates (r)

Answer 10

Information on survivorship, fecundity, and the duration fo life stages

Question 11

What does the principle allocation state?

Answer 11

It states that organisms must divide the resources they obtain among competing life functions