Neco Model Questions Vol1 2022 Agricultural Science Question 1
Practice practical question 1 from the 2022 Neco Model Questions Vol1 Agricultural Science examination. This question covers Biodiversity assessment, Species richness, Simpson's diversity index, Agricultural ecology .
A farmer wants to evaluate the biodiversity of a 1 ha field of mixed crops and fallow patches. Four 1 m² quadrats (Q1–Q4) are randomly placed and the number of individuals of five plant species (A, B, C, D, E) recorded as shown: | Quadrats | Species A | Species B | Species C | Species D | Species E | |----------|-----------|-----------|-----------|-----------|-----------| | Q1 | 12 | 8 | 5 | 0 | 3 | | Q2 | 7 | 10 | 6 | 2 | 5 | | Q3 | 9 | 4 | 8 | 1 | 2 | | Q4 | 5 | 9 | 4 | 3 | 6 | Using this data, answer the following: (a) Determine the species richness of the field. (b) Calculate Simpson’s Diversity Index (D) for the whole field. (c) Interpret the value of D obtained in terms of the field’s ecological stability. (d) Recommend one agronomic practice that could increase the field’s biodiversity. (e) Identify one probable source of error in the quadrat method and suggest a precaution to minimise it.
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This is Neco Model Questions Vol1 2022 Agricultural Science Question 1. It is one of the practical questions from the 2022 Neco Model Questions Vol1 Agricultural Science examination.
The question covers Biodiversity assessment, Species richness, Simpson's diversity index, Agricultural ecology .
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