Answer:
Step-by-step explanation:It seems like the question is discussing a model or calculation related to population dynamics, specifically the harvesting rate. However, the given information states that the current model is incorrect and the harvesting rate is actually 5-20% (or more) smaller than what was previously thought.
To address this, we need to adjust the model accordingly and analyze its limiting behavior. Unfortunately, the specific details or equations of the model are not provided in the question, making it difficult to provide a step-by-step solution or precise answer.
Additionally, the question mentions the possibility of a population crash and asks how long it would take for the crash to occur. However, without further information about the population dynamics, factors affecting population growth or decline, and the specific scenario, it is not possible to determine the duration of a population crash.
In order to provide a more accurate and informative response, it would be helpful to have more specific details about the model, equations, and context of the question.