Quiz on Trophic Interactions and Ecosystem Dynamics

What does a trophic interaction represent?

• The water cycle in ecosystems

• The climate effects on biodiversity

• The relationship between plants and animals

• The food chain and whom eats who

Which level in the trophic hierarchy do humans occupy?

• Level 6

• Level 5

• Level 1

• Level 3

What is the role of apex predators in an ecosystem?

• They have no significant impact

• They control herbivore populations

• They are primary producers

• They only eat plants

What can result from the loss of apex predators?

• Increased biodiversity

• Decreased herbivore populations

• Ecosystem degradation

• Improved river morphology

What human activities contributed to the loss of apex predators?

• Wildlife protection laws

• Increased biodiversity initiatives

• Conservation efforts

• Market hunting and predator eradication

What is a consequence of reduced predator populations?

• Decreased herbivore numbers

• Increased pressure on riparian plant communities

• Improved ecosystem services

• Increased plant productivity

What is a key factor in river morphology?

• Weather patterns

• Plant species diversity

• Flow regime and riverbed dynamics

• Human population density

How does the absence of large carnivores affect the growth patterns of tree species?

• It enhances biodiversity

• It leads to significant changes

• It stabilizes the ecosystem

• It has no effect

Which national parks are mentioned as an example of predator-prey relationships?

• Zion National Park

• Grand Canyon National Park

• Yosemite National Park

• Yellowstone National Park

What is the effect of increased herbivore populations on riparian communities?

• Enhanced biodiversity

• Collapse of productivity

• Improved soil quality

• Increased water retention