High School

Given that the area represented in the map is approximately 850,000 ha and there are 6 mating pairs of northern spotted owls and 3 additional individual northern spotted owls in Benton County (75,900 ha), how many northern spotted owls would you estimate are in the central Oregon Coast range?

Assume that the distribution of suitable habitat in Benton County is representative of the central Oregon Coast range.

Answer :

With 15 owls in 75,900 ha, this gives us an estimate of about 168 northern spotted owls in the 850,000 ha area.

Benton County has an area of 75,900 ha and supports 6 mating pairs (12 owls) and 3 additional individuals, totaling 15 owls. This gives a density of approximately 15 owls per 75,900 ha.

The area of the central Oregon Coast range is approximately 850,000 ha. Using the same density, we calculate the total number of owls:

(15 owls / 75,900 ha) * 850,000 ha ≈ 168 owls.

Therefore, we estimate there are about 168 northern spotted owls in the central Oregon Coast range.

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