population demography and dynamics

3

Click here to load reader

Upload: mariel-marjes

Post on 03-Jul-2015

40 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Population demography and dynamics

Name: Date:

Course & Year:

Direction: Write the correct answer before each number.

A. Identification

____________1.It is the study of how the population changes from time to time.

a. Dynamics b. Demography c. Population ecology

____________2. What are the four factors affecting population demography?

a. Fertility, mortality, immigration, emigration

b. Fertility, birth rate, immigration, death rate

c. Death rate, mortality, immigration, emmigration

____________3.The shorter the ______ the higher the population growth rate.

a. Sex ratio b. generation time c. graph

____________4. It is a type of a life table which is commonly used for organisms

that are difficult toclassify by age and the ecological role defend

more on their size or stage of development.

a. Cohort life table

b. Static life table

c. Size and stage based life table

____________5. It is a curve used to demonstrate the survivorship of the organisms

in a certain population.

a. Logarithmic curve b. arithmetic curve c. survivorship curve

____________6. A population with a large number of young individuals tends

Grow _______ .

a. slowly b. rapidly c. constant

____________7. What is the most commonly effect to a population with a large ratio

of female individuals?

Page 2: Population demography and dynamics

a. Increase in growth rate

b. b. decrease in growth rate

c. c. have stable growth

____________8.It gives us the probability of an individual that already survived to

age x will survived to age x+1?

a. Age structure

b. Age specific survivorship

c. Standardized Survival Schedule

____________9.The sudden change in demography and structure of a population.

a. Population Dynamics

b. increase in growth rate

c. Population demography

____________10.What is the possible effect of the increase in generation time

together with theincrease in number of males in a population?

a. Increase in mortality rate

b. Increase in growth rate

c. Decrease in mortality rate

Page 3: Population demography and dynamics

B. Solving

11-20. Show your solutions. Find Standardized Survival Schedule, Age-Specific

Survivorship, and Life Expectancy.

Age (year/s) Number of living individuals

0 300

1 267

2 222

3 197

4 156

5 130

6 95

7 50

8 25

Formulas: