Food webs 3 Flashcards
1
Q
Define trophic cascade.
A
Top down effects of predators can influence the abundance of species in lower trophic levels.
2
Q
Describe the ‘why the world is green’ hypothesis.
A
World is green despite herbivores eating plants because carnivores control herbivores.
3
Q
What is the hypothesis of exploitation ecosystems?
A
Predicts that biomass at each trophic level shifts depending on productivity.
