Endangered Species Quiz
Questions: 16 · 10 minutes
1. Poaching is driven by international demand, weak enforcement, and limited local livelihood options. Which response best addresses the interacting causes?
Capturing the remaining animals without addressing trade or habitat conditions
Publishing population estimates while leaving trade routes unchanged
Focusing only on penalties for communities near the species’ habitat
Combining targeted enforcement, demand reduction, and locally appropriate livelihood support
2. An amphibian exists only on one mountaintop. Why can that restricted range increase its vulnerability?
A restricted range prevents natural selection from occurring.
One fire, disease outbreak, or habitat change could affect most of the population.
All species with small ranges require human care to reproduce.
Animals in small ranges cannot form ecological relationships with other species.
3. Sea turtles are being unintentionally caught in shrimp trawl nets. Which measure most directly reduces this form of bycatch?
Installing turtle-excluder devices that provide escape openings
Moving turtle eggs from beaches into public aquariums
Planting additional vegetation behind nesting beaches
Attaching tracking tags to adult turtles after capture
4. A threatened species has increased in number for several years, but its habitat is still shrinking. Which conclusion is most scientifically sound?
The recent increase proves that habitat protection is no longer needed.
Any increase means the species should immediately be removed from all threatened lists.
Recovery decisions should consider population trends, habitat, and continuing threats together.
The species should be moved entirely into captivity before more data are collected.
5. An endangered population falls to a few individuals and later grows again. Why can the earlier population bottleneck remain a concern?
It permanently prevents the population from producing offspring.
It causes every surviving individual to develop the same disease.
It guarantees that the population will become invasive.
It can leave low genetic diversity, limiting adaptability and increasing inherited risks.
6. In the IUCN Red List framework, what does the category “Endangered” mean?
The species is uncommon but faces no demonstrated extinction risk.
The species survives only in captivity or cultivation.
The species faces a very high risk of extinction in the wild.
The species lacks enough data for its risk to be evaluated.
7. What is the central purpose of CITES in endangered-species conservation?
To designate and manage protected wetlands within every country
To regulate international trade in listed wild animals, plants, and their specimens
To establish a single worldwide system of national parks
To fund captive breeding for every threatened species
8. A new highway divides one continuous forest population into several small, isolated groups. Which threat does this most directly illustrate?
Overharvesting
Ecological succession
Captive selection
Habitat fragmentation
9. Which plan is an example of ex situ conservation?
Removing illegal traps from a protected forest
Restoring native vegetation inside the animal’s remaining wild range
Breeding a threatened animal in managed facilities for possible reintroduction
Creating a wildlife corridor between two natural populations
10. Protecting the extensive forest range of a large mammal also protects many smaller species living in the same habitat. In this context, the mammal functions mainly as what?
An umbrella species whose protection benefits many co-occurring species
An indicator species used only to measure pollution
A captive founder selected for a breeding program
An invasive species that transforms the ecosystem
11. Researchers collect water samples from a wetland and analyze traces of DNA to check whether a rare amphibian is present. What technique are they using?
Radio telemetry
Population viability modeling
Artificial hybridization
Environmental DNA, or eDNA, monitoring
12. A specialist pollinator depends on one native flowering plant. If that plant disappears from the area, what is the most likely consequence for the pollinator?
Its population may decline because a key food or reproductive resource has been lost.
It will automatically begin pollinating every other plant species nearby.
It will become genetically identical to a pollinator that uses another flower.
Its extinction risk will fall because it has fewer plants to visit.
13. As temperatures rise, a mountain species needs to shift toward cooler habitat, but farms separate its current range from suitable higher ground. Which intervention would most directly support movement?
Keeping the species permanently within its current isolated patch
Increasing public display of the species in zoos
Establishing a connected habitat corridor toward the cooler area
Removing unrelated native predators from the mountain
14. What is a major limitation of captive-breeding programs when used alone?
Captive-born animals can never reproduce successfully.
Breeding outside the wild does not by itself remove habitat loss, poaching, or other original threats.
Captive breeding always increases pressure on wild food supplies.
Every captive population immediately becomes a separate species.
15. Introduced rats are eating the eggs of endangered ground-nesting birds on an island. Which carefully managed action most directly addresses the immediate threat?
Planting more tall trees across the island
Eradicating or controlling the invasive rats while limiting harm to native species
Moving tourists away from coastal viewpoints
Providing the birds with supplementary food year-round
16. A species receives a threatened classification in a global Red List assessment. What can reasonably be inferred about national legal protection?
The global assessment documents extinction risk, but legal protection depends on applicable national or regional law.
The classification automatically creates identical criminal penalties in every country.
The classification means all international movement of the species is automatically prohibited.
The classification transfers ownership of every individual to the assessing organization.