QUESTION 3 Planning is being made to control an invasive herbivorous insect alon

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QUESTION 3 Planning is being made to control an invasive herbivorous insect along a peninsula. An insecticide barier is laid across the northern and southem most landscape of the peninsula. The herbivorous insect has the following ecological characteristics. The initial population density of males and females has been estmated to be-200,000 insects, the rale of populalion increase is 2 the ratio of females to males is 1, and the females only mate once. To save money and accommodale imited rearing facilties, a constant release sale of 500,000 sterile males is made, giving an initial ratio of release of 5 infertile males to every 1 fertile males, which translates to a probability of successful mating of 0.167 (ie 1 erble mating for every 6 possible malirgs) Based on the initial population size, fill in the empty cells (e, Box 1-6) of the table to estimate how many generations of slerie male releases would be required to eliminate the invasive insect herbivore from the peninsula. The correct numbers (and their format) are in the following list (Each correct answer is worth 2 pts, double check your answers to ensure that the format of the nuenmbering is the same as that used in the list of possible answers 800,000; 600,000, 500,000, 400,000, 300,000, 5,000; 4,800, 4167; 4053; 3091 10: 0, 34; 2: 15 7260:1; 8000:1; 6260:1 53501 No. No. sterile No. females it males temales sterile to no. fertile no sterile released with releases Generation Ratio Equivalent normal females at generation end of sterile males releases 00,000 500,000 100,000 5.1 200,000 Box 2 33,333 151 400,000 500,000 Box 3 120.1 Box 1 16,667 2083 Box 4 | Box G 2 |500,000 | 69 Box 5 Box 4 Box 5 Box 6 Box 2 Box 3 Box 1

Explanation / Answer

Box 1: the correct answer is 800,000 because the rate population increase (in normal conditions) it is 2, so 400,000 multiplied by 2 = 800,000.

Box 2: the correct answer is 500,000 because the number of sterile male it is constant.

Box 3: the correct answer is 4167 because you have to multiplicate the ratio sterile to normal male of the two previous generations, 6x16=96, then you have to divide 400,000/96= 4167.

Box 4: the correct answer 34, which the result of divide 4167/121.

Box 5= 8000:1.

Box 6: 0

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