Chapter 20 Community and Ecosystem Ecology. Community Ecology Species living in same vicinity Potential interactions will occur Interspecific interactions.
Predation – one species feeds on another enhances fitness of predator but reduces fitness of prey ( +/– interaction)
Predator-Prey Interactions We wish to know: how predators affect prey populations, and vice-versa what stabilizes predator-prey interactions and prevents.
Predation Lecture 15. Overview Chapter in Text: 15, 17 Predation and Herbivory Responses of individuals to predation Responses of populations to predation.
3 Earth’s Environmental Systems CHAPTER. Lesson 3.2 Systems in Environmental Science Positive feedback loops can help erosion turn a fertile field to.
Predation – Chapter 13. Types of Predators Herbivores – animals that prey on green plants or their seed and fruits. –Plants are usually damaged but not.
Interactions Within Ecosystems .
Chapter 6 Ecosystem Balance. 6.1 Relationships in the Ecosystem 6.2 Ecological Succession 6.3 Stability in the Ecosystem 6.4 Land Biomes.
Meridan Tapert Environmental Science P3 February 8 th, 2014.
Entomophagous Insects – The Insect-Consuming Insects Predators and Parasitoids.
PREDATION POPULATION-LEVEL EFFECTS OF PREDATION. I. THE ROLE OF PREY DENSITY A. Functional Response of Predators.
Ecological Principles Part II PaCES/HIMB Summer Program in Environmental Science David A. Krupp, Ph.D PaCES/HIMB Summer Program in Environmental Science.
