NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
MARCH/APRIL 2014 EXAMINATION

COURSE CODE:           BIO 313

COURSE TITLE:            ANIMAL ECOLOGY

TIME ALLOWED:         2 Hours

INSTRUCTION: Answer 4 questions

1.         a) What is Ecological community?

b) Explain the various relationships influencing the ecological community

2a. Explain the following terms:

            (i) Population growth

            (ii) Age distribution and size

b) Describe the growth patterns

c) Briefly explain any two techniques of estimating population size

3a. Describe and explain the survivorship curves

 b. Explain with examples, the different types of life tables

 c. State the significance of life table analysis in animal ecology

4a. State and explain life expectancy of a hypothetical population

 b. Explain the criteria of K-factor analysis

5a. State and explain the factor that can affect animal populations

 b. Explain birth rate and death rate in animal growth patterns

 6a. Explain the following terms:

i.          Population

            ii.         Demography

iii.        Population genetics

iv.        List and explain eight methods used in demographics

b) What Demographic methods are used for modeling population?

7a. Explain human population control

 b. How is it different from animal population control?

 c. Explain contributions ecologists on population control

8a. List five physical and chemical properties of water

 b. Write a formula for calculating sunlight

 c. Explain the following in territory:

 i. Spraying

ii. Defence

iii. Classic territories