BIO120H1 Chapter Notes - Chapter 5&19: Herbivore, Aposematism, Eurasian Oystercatcher
36
BIO120H1 Full Course Notes
Verified Note
36 documents
Document Summary
Most herbivores have relatively narrow diets: predators eat a broad range of prey species, herbivores feed on a constricted diet of plant species. Agromyzid flies feed on only a few plant species. Is a voracious generalist (eats great quantities of food) herbivore, capable of removing all plant from wetlands then feeds on algae and detritus to survive. Compensation (12. 10)- compensating for herbivory: compensation: when removal of plant tissues stimulates a plant to produce new tissues allowing for relatively rapid replacement of the material eaten by herbivores. Secondary compounds: secondary compounds: chemicals produced by plants that are toxic to protect the plant against all herbivore species except the few that can tolerate them. Others may serve as chemical cues that attract predators and parasitoids to the plant where they attack the herbivore. Some plant species produce it constantly others only in an induced defence.
