Goats were introduced to a number ofthe Galapagos Islands several centuries ago

Question

Goats were introduced to a number ofthe Galapagos Islands several centuries ago to provide food for people who were colonizing the area. Because there were previously large mammals on the domestic had a large plants and close to extinction. introduction they have drastically altered and reduced the amount of vegetation available and even driven some native species On the island of Northern Isabela, the goat population grew rapidly for about 30 years, but began to level off at a population size of approximately a 100,000 individuals (see graph below). Which ONE of the following statements provides a good explanation as to why the curve below levels of? Years after introduction O Other species use up most of the resources

Explanation / Answer

Answer is Option 2. The above curve shows logistic growth of a population. Here ,any population levels off at a certain point after the resources start getting used up. The resources may be food, water, shelter etc. which creates a competition among the members of the same population, due to its limited quantities.As population size increases, competition increases.Later leads to a plateau in the growth.

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