Environmental Studies ยท Biology

Biodiversity and Conservation

2,266 Questions

Biodiversity and conservation questions address threats to ecosystems, climate change impacts, and habitat loss. These topics are essential for environmental science sections in major competitive exams. Practicing these questions clarifies concepts regarding species extinction and ecological management.

Habitat loss consequencesClimate change impactsEcosystem degradation causesDesert biodiversity threatsForest diversity threatsResource extraction effects

Biodiversity and Conservation Questions

Multiple choice

Which of the following is NOT a factor that can contribute to edge-induced extinction?

  1. Increased predation

  2. Increased competition

  3. Increased disease transmission

  4. Increased habitat availability
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Increased habitat availability is not a factor that can contribute to edge-induced extinction.

Multiple choice

Which of the following is NOT a common edge management technique?

  1. Buffer strips

  2. Edge feathering

  3. Habitat corridors

  4. Edge burning
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Edge burning is not a common edge management technique.

Multiple choice

Which of the following is NOT a factor that can influence species dispersal?

  1. Habitat connectivity

  2. Climate change

  3. Species interactions

  4. Human activities
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Species interactions are not a factor that directly influences species dispersal, while habitat connectivity, climate change, and human activities can all affect dispersal rates.

Multiple choice

Which of the following is NOT a negative consequence of urbanization on wildlife?

  1. Habitat loss

  2. Habitat fragmentation

  3. Increased pollution

  4. Increased biodiversity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Urbanization typically leads to habitat loss and fragmentation, which can have negative consequences for wildlife. However, urbanization can also lead to increased biodiversity in some cases, as it can create new habitats for certain species.

Multiple choice

Which of the following is NOT a factor that can contribute to habitat fragmentation?

  1. Urbanization

  2. Agriculture

  3. Forestry

  4. Climate change
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Urbanization, agriculture, and forestry are all human activities that can contribute to habitat fragmentation. Climate change is a natural phenomenon that can also lead to habitat fragmentation, but it is not a direct result of human activity.

Multiple choice

Which of the following is NOT a negative consequence of habitat fragmentation on wildlife?

  1. Reduced genetic diversity

  2. Increased risk of extinction

  3. Increased competition for resources

  4. Increased dispersal of invasive species
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Habitat fragmentation can have a number of negative consequences for wildlife, including reduced genetic diversity, increased risk of extinction, and increased competition for resources. However, habitat fragmentation can also lead to increased dispersal of invasive species in some cases.

Multiple choice

Which of the following is NOT a benefit of habitat connectivity?

  1. Increased gene flow

  2. Reduced risk of extinction

  3. Increased dispersal of invasive species

  4. Improved water quality
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Habitat connectivity can provide a number of benefits, including increased gene flow, reduced risk of extinction, and improved water quality. However, habitat connectivity can also lead to increased dispersal of invasive species in some cases.

Multiple choice

Which of the following is NOT a benefit of habitat networks?

  1. Increased biodiversity

  2. Improved water quality

  3. Reduced air pollution

  4. Increased risk of extinction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Habitat networks can provide a number of benefits, including increased biodiversity, improved water quality, and reduced air pollution. However, habitat networks do not typically lead to increased risk of extinction.

Multiple choice

Which of the following is NOT a potential consequence of ocean acidification?

  1. Coral bleaching

  2. Decreased fish populations

  3. Enhanced marine biodiversity

  4. Reduced ocean productivity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Enhanced marine biodiversity is not a potential consequence of ocean acidification, but rather a potential impact of certain ocean acidification mitigation strategies.

Multiple choice

Which of the following is NOT a potential consequence of reduced functional diversity in forests?

  1. Increased vulnerability to climate change

  2. Reduced resistance to pests and diseases

  3. Decreased nutrient cycling

  4. Increased carbon sequestration
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Reduced functional diversity can lead to decreased nutrient cycling and increased vulnerability to climate change and pests and diseases, but it does not directly affect carbon sequestration.

Multiple choice

Which of the following is NOT a potential benefit of functional diversity management in forests?

  1. Increased resilience to climate change

  2. Enhanced productivity

  3. Reduced risk of pests and diseases

  4. Increased carbon emissions
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Functional diversity management aims to maintain or enhance functional diversity, which can lead to increased resilience to climate change, enhanced productivity, and reduced risk of pests and diseases. It does not directly lead to increased carbon emissions.

Multiple choice

Which of the following is NOT a potential impact of invasive species on ecosystems?

  1. Competition with native species

  2. Habitat modification

  3. Increased biodiversity

  4. Spread of diseases
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While invasive species can sometimes increase local biodiversity, they often have negative impacts on ecosystems, including competition with native species, habitat modification, and the spread of diseases.

Multiple choice

Which of the following is NOT a potential impact of invasive species on human health?

  1. Spread of diseases

  2. Allergic reactions

  3. Increased biodiversity

  4. Economic losses
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While invasive species can sometimes have positive impacts on human health, such as providing new sources of food or medicine, they can also have negative impacts, including the spread of diseases, allergic reactions, and economic losses.

Multiple choice

Under the ESA, what is the definition of an "endangered species"?

  1. A species that is in danger of extinction throughout all or a significant portion of its range.

  2. A species that is likely to become endangered within the foreseeable future.

  3. A species that has been listed as endangered by the U.S. Fish and Wildlife Service.

  4. A species that is found only in a limited geographic area and is facing threats to its survival.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The ESA defines an endangered species as one that is in danger of extinction throughout all or a significant portion of its range.

Multiple choice

Which of the following is NOT a benefit of functional diversity in ecosystems?

  1. Increased stability

  2. Enhanced ecosystem functioning

  3. Reduced risk of species loss

  4. Increased competition among species
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Functional diversity typically leads to increased complementarity and reduced competition among species, rather than the opposite.