Waec Model Questions Vol1 2022 Agricultural Science Question 1

Practice practical question 1 from the 2022 Waec Model Questions Vol1 Agricultural Science examination. This question covers Biodiversity assessment, Species diversity indices, Integrated pest management .

Waec Model Questions Vol1 2022 Agricultural Science Practical
Topics: Biodiversity assessment Species diversity indices Integrated pest management
Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • AGRICULTURAL_SCIENCE • practical

A mixed‑crop field is being surveyed for insect pest diversity. Five 1 m² quadrats are randomly placed and the number of individuals of three pest species (A, B and C) recorded as follows: | Quadrat | Species A | Species B | Species C | |---------|-----------|-----------|-----------| | 1 | 12 | 5 | 3 | | 2 | 8 | 7 | 5 | | 3 | 10 | 4 | 6 | | 4 | 9 | 6 | 5 | | 5 | 11 | 5 | 4 | Using the data, answer the questions below.

Question Parts

( a )
Calculate the relative abundance (proportion) of each species in the whole field.
( b )
Compute Simpson’s Diversity Index (D = 1 – Σ (n_i/N)²) for the field and comment on the level of diversity.
( c )
Suggest two cultural control measures that could be adopted based on the observed diversity.

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About This Question

This is Waec Model Questions Vol1 2022 Agricultural Science Question 1. It is one of the practical questions from the 2022 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Biodiversity assessment, Species diversity indices, Integrated pest management .

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