Answer:
Dissociative fugue
Explanation:
Based on the scenario that is being described, it seems that the man is most likely suffering from Dissociative fugue. This is a psychological state that was formerly known as a psychogenic fugue. This state is characterized as when an individual loses awareness of their identity or any/all other important autobiographical information, while also engaging in some form of unexpected travel. Which would explain why the man in this scenario does not know who he is and has traveled far from where he actually lives.
Answer:
I would say this is niche partitioning.
Explanation:
Every organism has a certain range of requirements called a niche. The competitive exclusion principle states that two organisms cannot occupy the exact same niche without one out-competing the other. Niche partitioning is basically changing some aspects of a niche so that there is no need for competition.
Italy's Vesuvius has been a menacing figure since an eruption in 79 CE buried the city of Pompeii. Over the last 17,000 years, the volcano has gone through eight major explosive eruptions that were followed by large pyroclastic flows, according to the Smithsonian Institute/USGS Global Volcanic Program database.