next up previous contents ©Marino Gatto and Renato Casagrandi (2020) Models for conservation and management in population and disease ecology

Next: Problem ER12 Up: Problems on the analysis Previous: Problem ER10   Contents

Problem ER11

A population of spotted deer (Dama variegatus) is driven by environmental stochasticity only. Its median finite rate of increase is $\lambda$ = 1.03 while the demographic variance $\sigma_\varepsilon^2$ (namely the variance of the logarithm of the multiplicative noise that influences the population abundance) is 0.025. In 2015, 210 deer have been counted. How will the population abundance be distributed in 2025 if the growth is Malthusian?