Final answer:
Increasing the species' birth rate, reducing the death rate, or altering immigration and emigration can lead to an increase in the per capita growth rate (r) for the specified owl population.
Step-by-step explanation:
The student's question pertains to factors that could lead to an increase in the per capita growth rate (r) for a specific owl species with a given life span and current growth rate.
To increase the per capita growth rate (r), one could look into various factors such as increasing the birth rate, decreasing the death rate, or altering immigration and emigration rates that impact population growth. Practices like habitat conservation to improve living conditions or implementing measures to mitigate predation and diseases could help boost the birth rate or reduce the death rate, hence positively affecting r.
Furthermore, limiting emigration or encouraging immigration could also result in an increased population growth rate (r).