Question

6. Isle Royale National Park was established in 1940 on a remote island, and designated as a wilderness area in 1976. The only mode of transportation to the island is by boat or seaplane. Moose first arrived at Isle Royale around 1900. The moose population tends to increase in years with mild winters, early spring green up, abundant winter forage, low wolf numbers and low levels of tick infestation. Wolves first arrived at the island on an ice bridge from Canada in 1940. Disease has also influenced the wolf population. Between 1980 and 1982 the wolf population declined from 50 to 14, due to canine parvovirus. Using the graph above determine the highest moose population and the year it occurred.a.50 in 1991b.2,400 in 1980c.2,400 in 1991d.50 in 1980

Answer 1

Moose and Wolves population graph

As it can be seen in the graph, the peak in the population of moose is shown approximately in the year 1991, with a population number of 2400 individuals.

This is in concordance with the wolves' population dynamic, which shows a very small population in that same year, composed of approximately 23 wolves.

Therefore, the correct answer to this question is option c, 2400 in 1991.