Island Biogeography MCQs with Answers

adminApril 6, 2024

0 17 2 minutes read

Welcome to the Island Biogeography MCQs with Answers. In this post, we have shared Island Biogeography Online Test for different competitive exams. Find practice Island Biogeography Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Island Biogeography.

Island Biogeography is a fascinating field of study within ecology that examines the distribution and diversity of species on islands. This discipline provides crucial insights into the processes that shape biodiversity. Islands, due to their isolation, serve as natural laboratories where scientists can observe how species colonize new areas, adapt to unique environments, and evolve over time.

Key concepts in island biogeography include species richness, colonization, extinction, and equilibrium. Species richness refers to the number of different species present on an island. The theory, developed by Robert MacArthur and Edward O. Wilson, posits that the number of species on an island is a balance between the rates of colonization and extinction. Larger islands and those closer to the mainland typically have higher species richness because they are more accessible to new species and can support larger populations.

Factors such as island size, distance from the mainland, habitat diversity, and environmental stability significantly influence species diversity. Smaller, more isolated islands often have fewer species due to higher extinction rates and lower immigration rates. Additionally, habitat diversity within islands can provide more niches, supporting greater biodiversity.

Island Biogeography has profound implications for conservation biology. Understanding these dynamics helps in the creation of effective strategies for preserving endangered species and managing biodiversity hotspots. In a world facing rapid environmental changes, insights from island biogeography are vital for maintaining ecological balance and protecting natural habitats.

Island Biogeography Online Quiz

By presenting 3 options to choose from, Island Biogeography Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Island Biogeography Questions and Answers and click over the correct answer.

Test Name: Island Biogeography MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Island Biogeography

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1 / 40

What is the primary focus of the equilibrium theory of island biogeography?

Island evolution

Species adaptation

Balance of immigration and extinction

2 / 40

Which type of islands typically support the most species?

Large and close to the mainland

Small and far from the mainland

Large and isolated

3 / 40

Which concept refers to the creation of new habitats on volcanic islands?

Ecological succession

Ecological isolation

Genetic drift

4 / 40

What role do larger islands play in species diversity according to the theory?

No significant role

Support fewer species

Support more species

5 / 40

What is the term for species colonizing new islands?

Endemism

Emigration

Immigration

6 / 40

Which factor contributes to higher immigration rates on islands?

Small island size

Isolation

Proximity to the mainland

7 / 40

What does "species-area relationship" refer to in island biogeography?

Area has no effect

More area supports more species

Less area supports more species

8 / 40

How does climate change impact island biogeography?

Increases species richness

Alters habitats and species distribution

Reduces species richness

9 / 40

How does geographic isolation contribute to the evolution of island species?

Has no effect

Reduces genetic diversity

Promotes unique adaptations

10 / 40

How does distance from the mainland affect species richness on islands?

No effect

Decreases

Increases

11 / 40

What is the significance of habitat diversity on islands?

Increases species richness

Decreases species richness

No effect

12 / 40

What term describes the balance between species immigration and extinction?

Saturation

Carrying capacity

Equilibrium

13 / 40

What effect does low genetic diversity have on island species?

Decreases extinction risk

No effect

Increases extinction risk

14 / 40

How does the size of an island typically affect its carrying capacity?

No effect

Larger islands have higher carrying capacities

Smaller islands have higher carrying capacities

15 / 40

What does "rescue effect" refer to in island biogeography?

Limited colonization

High extinction rates

Immigration preventing extinction

16 / 40

Which factor often leads to high levels of endemism on islands?

Isolation

High immigration rates

Large island size

17 / 40

How does the "target area effect" influence species colonization?

Smaller islands are more likely to be colonized

Larger islands are more likely to be colonized

Distance has no effect

18 / 40

Which concept explains the extinction of species on islands?

Extinction rates

Evolution rates

Colonization rates

19 / 40

According to the theory, what happens to species richness as island size increases?

Stays the same

Decreases

Increases

20 / 40

Which factor increases the likelihood of species extinction on islands?

High immigration rates

Small population size

Large population size

21 / 40

What does the term "island biogeography" encompass?

Study of species distribution on islands

Study of species interaction on islands

Study of climate on islands

22 / 40

What effect does high habitat diversity have on islands?

Increases species richness

Decreases species richness

No effect

23 / 40

Which process explains the arrival of new species to islands?

Speciation

Colonization

Extinction

24 / 40

Which term refers to the unique evolution of species on islands?

Endemism

Island dwarfism

Island gigantism

25 / 40

What is a key factor in the extinction of island species?

High immigration rates

Abundant resources

Limited resources

26 / 40

How does isolation affect species on islands?

Has no effect

Reduces species richness

Increases species richness

27 / 40

What role do ecological niches play in island biogeography?

Limit species diversification

No role

Promote species diversification

28 / 40

What does the theory of island biogeography primarily study?

Evolution of new species

Species richness on islands

Species adaptation

29 / 40

Which term describes the evolution of similar species in different island habitats?

Divergent evolution

Parallel evolution

Convergent evolution

30 / 40

Which factor is crucial in determining species richness on islands?

Human activity

Island size and distance from the mainland

Climate stability

31 / 40

How does the theory of island biogeography explain species turnover?

Permanent species settlement

Continuous immigration and extinction

Sporadic colonization

32 / 40

Which factor is critical for maintaining high biodiversity on islands?

Uniform habitats

Limited resources

Habitat diversity

33 / 40

What is a common consequence of small population sizes on islands?

Inbreeding

High reproductive rates

Genetic diversity

34 / 40

What is the primary cause of species extinction on small islands?

Limited resources

Abundant resources

High immigration rates

35 / 40

Who developed the theory of island biogeography?

MacArthur and Wilson

Mayr and Simpson

Darwin and Wallace

36 / 40

Which term describes the process by which new species evolve on islands?

Genetic drift

Adaptive radiation

Convergent evolution

37 / 40

Which term describes species found only on islands and nowhere else?

Endemic

Invasive

Cosmopolitan

38 / 40

What is a major threat to island biodiversity today?

Increased immigration

Increased isolation

Invasive species

39 / 40

What impact does human activity typically have on island ecosystems?

No impact

Increases extinction rates

Decreases extinction rates

40 / 40

How does competition affect species diversity on islands?

Reduces species diversity

No effect

Increases species diversity

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adminApril 6, 2024

0 17 2 minutes read