What is Exotic Species?

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Grade Level:

Class 6

Space Technology, EVs, Climate Change, Biotechnology, HealthTech, Robotics, Chemistry, Physics

Definition

What is it?

An exotic species is a plant or animal that is brought into a new place, or environment, where it doesn't naturally belong. These species are also called 'introduced' or 'non-native' species because they are not originally from that area.

Simple Example

Quick Example

Imagine your friend brings a special type of mango tree from a different state, say from Kerala to Rajasthan. If this mango tree is not naturally found in Rajasthan's climate and soil, it would be an exotic species for Rajasthan. It's like a new student joining your class from a faraway school!

Worked Example

Step-by-Step

Let's understand how a species becomes 'exotic' with an example:

Step 1: Identify the natural home of a species. For example, the 'Gulmohar' tree (Delonix regia) is native to Madagascar, an island country.
---Step 2: Observe if this species is found in other regions naturally. Gulmohar trees are now very common in India, planted in many cities for their beautiful red flowers.
---Step 3: Determine if humans brought it there. Yes, people brought Gulmohar seeds to India because they liked its beauty.
---Step 4: Conclude if it's exotic. Since the Gulmohar tree is not originally from India but was brought here by humans, it is considered an exotic species in India.
---Answer: The Gulmohar tree is an exotic species in India.

Why It Matters

Understanding exotic species is important for protecting our environment and native plants and animals. Scientists working in Climate Change and Biotechnology study these species to prevent harm to local ecosystems. This knowledge helps careers in wildlife conservation and environmental management.

Common Mistakes

MISTAKE: Thinking all exotic species are harmful. | CORRECTION: Not all exotic species cause harm. Some are harmless, and some are even beneficial, like many crops we eat (e.g., potatoes were brought to India).

MISTAKE: Confusing exotic species with endangered species. | CORRECTION: An exotic species is one that's not native to a place. An endangered species is a native species whose numbers are very low and might disappear soon. They are different concepts.

MISTAKE: Believing exotic species only come from other countries. | CORRECTION: An exotic species can also come from a different state or region within the same country, as long as it's not native to the specific local environment.

Practice Questions

Try It Yourself

QUESTION: Is a tiger an exotic species in the forests of Madhya Pradesh? | ANSWER: No, tigers are native to India, including Madhya Pradesh, so they are not exotic species there.

QUESTION: The 'Eucalyptus' tree is originally from Australia but is now widely planted in India. Is Eucalyptus an exotic species in India? Why or why not? | ANSWER: Yes, Eucalyptus is an exotic species in India because it is not native to India and was introduced here from Australia.

QUESTION: Your school garden has a beautiful rose plant. Roses are native to Asia, Europe, and North America. If this specific type of rose was brought from Europe to your Indian school garden, is it an exotic species for your garden? Explain. | ANSWER: Yes, it would be considered an exotic species for your garden. Even though roses are native to parts of Asia, if this particular variety was brought from a different continent (Europe) and wasn't naturally occurring in your specific local area of India, it's introduced.

MCQ

Quick Quiz

Which of the following is the best definition of an exotic species?

A species that is very rare and hard to find.

A species that lives in a very hot or cold climate.

A species that is brought into a new place where it does not naturally live.

A species that changes its colour often.

The Correct Answer Is:

An exotic species is defined as a plant or animal introduced to a new environment where it doesn't naturally belong. Options A, B, and D describe other characteristics, not the definition of an exotic species.

Real World Connection

In the Real World

You might see 'Parthenium' weed (also called 'Congress grass') growing everywhere, especially on roadsides and empty plots in India. This plant is an exotic species, originally from North America, and it came to India accidentally. It causes allergies and harms native plants, showing the real-world impact of exotic species on our local environment and health.

Key Vocabulary

Key Terms

NATIVE: A species that naturally belongs to a particular region | INTRODUCED: Brought into a new area by humans | ECOSYSTEM: A community of living organisms interacting with their non-living environment | ENVIRONMENT: The surroundings or conditions in which a person, animal, or plant lives or operates | BIODIVERSITY: The variety of life in the world or in a particular habitat or ecosystem.

What's Next

What to Learn Next

Now that you know what exotic species are, you can learn about 'Invasive Species.' This next concept will teach you about exotic species that cause harm to their new environment and why it's important to control them. It builds on understanding the difference between native and non-native plants and animals.