1. Predation

2. Species Interaction

3. Predator

4. Prey

5. Predation When an individual captures, kills and consumes another individual prey. Prey – The individual eaten by the predator

7. Predators, Prey and Natural Selection Natural Selection, the major mechanism of evolution, favors adaptations that improve efficiency of predators at finding, capturing and consuming prey Prey’s survival depends on their ability to avoid being captured.

9. Mimicry When harmless species resemble a dangerous species

10. Camouflage

11. Coral Snake King Snake Red to yellow kill a fellow Red to black venom lack

13. Plant Herbivore interactions Plants also try to avoid being eaten by making secondary compounds that are poisonous. Leaves of three let them be.

14. Parasitism Resembles predation in that one individual is harmed and one benefits. Parasites feed on individuals known as a host, but they usually do not kill their host.

17. Ectoparasites- live on the outside of the body Endoparasites – live on the inside of the body

18. Adaptations of parasites Natural Selection favors adaptations that allow the parasite to exploit the host

19. Competition Results from a fundamental niche overlap. (fundamental niche) what an organism could eat. Competitive Exclusion – When one organism uses resources more efficiently than another.

20. Competition and Community Structure

21. Mutualism Mutualism – is a cooperative relationship in which both species derive some benefit. –Ex. Pollinators- get pollen and plants are fertilized.

22. Commensalism Commensalism- is an interaction where one species benefits and the other has no benefit.