Given a current hawk population of 4O adults, 1O sub-adults, and O juveniles and

Question

Given a current hawk population of 4O adults, 1O sub-adults, and O juveniles and the following rules, calculate the total hawk population 1 year from now.

Rules

I. Only adults can reproduce

II. Hawks reproduce once per year [current population has already reproduced for this year]

III. Hawks are juveniles and sub-adults for 1 year only

IV. Use life cycle below as guide:

-Eggs/juveniles---->sub-adults----->adults

Juvenile survival Rate = .25

Sub-adult Survival Rate = .83

Adult SR = .92

Adult Fecundity= .5O

Explanation / Answer

Total hawk population 1 year from current time = 45.6

(juvinile SR) (number of juviniles ) + (Sub - adult survival rate)(number of subadults) + (adult sr) (number of adults) + adult fecundity

= (0.25) (0) + (0.83) (10) + (0.92) (40) + (0.50) = 0 + 8.3 + 36.8 + 0.50 = 45.6

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