A species, often introduced by humans, that takes hold outside its native range is called what?

A species, often introduced by humans, that takes hold outside its native range is called what?

• A. Climax Community
• B. Old-Growth Forest
• C. Secondary Succession
• D. Invasive Species

Answer: (D)

Introducing species by humans that establish outside their native range is called an invasive species. This term highlights two key ideas: the organism is not originally from the area, and it tends to spread rapidly and outcompete native species, often altering habitats and causing ecological or economic problems. Invasive species usually have traits like fast growth, high reproduction, broad environmental tolerance, and few natural enemies in the new range, which helps them dominate quickly. The other terms describe different ecological situations: a climax community is the stable, mature stage of an ecosystem after succession ends; an old-growth forest refers to a forest that has developed over a long period with complex structure and little disturbance; secondary succession is the process of ecosystem recovery after a disturbance in a area that already had a community, not a situation where a non-native species has established and spread.

Introducing species by humans that establish outside their native range is called an invasive species. This term highlights two key ideas: the organism is not originally from the area, and it tends to spread rapidly and outcompete native species, often altering habitats and causing ecological or economic problems. Invasive species usually have traits like fast growth, high reproduction, broad environmental tolerance, and few natural enemies in the new range, which helps them dominate quickly.

The other terms describe different ecological situations: a climax community is the stable, mature stage of an ecosystem after succession ends; an old-growth forest refers to a forest that has developed over a long period with complex structure and little disturbance; secondary succession is the process of ecosystem recovery after a disturbance in a area that already had a community, not a situation where a non-native species has established and spread.