Considering the following life history for an animal species, which harvest plan would result in the...
Considering the following life history for an animal species, which harvest plan would result in the highest population growth for the species (assume harvest would only take a small portion of total individuals in the stated life stage):
75-year lifespan
Age at maturity - 20 yrs
Post reproductive age - 60 years
Average lifetime fecundity (females only) - 5
High rates of parental care
Strong social groups
High juvenile mortality
Low adult mortality
Select one:
A. Harvest in the juvenile phase and after 70 yrs. old
B. Harvest only in the juvenile phase.
C. Harvest only after 60 yrs. old.
D. Harvest evenly through all phases.
Homework Answers
Sol: Option- B( Harvest only in the juvenile phase)
Juvenile phase gives the highest population growth for species because here post reproductive age is 60 yrs. and age maturity is 20 yrs. that is the actual reproductive phase and average life time fecundity of a female is 5 so it gives high population growth rate.
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