1. CHAPTER 50 AN INTRODUCTION TO ECOLOGY AND THE BIOSPERE
Or…”The blue, the green, and everything in between.”

2. “Earth-set”

3. The scope of ecology What is ecology?
Ecology studies the distribution and abundance of organisms and their interactions with the environment.

6. What affects organisms?
Abiotic Factors
Biotic Factors
Organisms are affected by and affect both the abiotic and biotic components of their environment.

7. Evolution and Ecology are closely linked.
Including how organisms respond and how they are distributed
Events occurring in ecological time
(minutes, months, years)
translate into effects over the longer scale of evolutionary time
(decades, centuries, millennia, and longer).

8. Definitions Organismal ecology Population Population ecology Community
Community ecology
Ecosystem
Ecosystem ecology
Landscape ecology
A landscape or seascape

9. Rachel Carson
Precautionary principal
Look before you leap

10. Species Distribution Limiting factor—Dispersal
Increased by human transplantation

13. Climagraph and distribution

17. Aquatic Biomes Marine Freshwater Wetlands Estuaries Intertidal
Coral Reefs
Pelagic
Benthos
Freshwater
Wetlands
Estuaries

20. Water Cycling

22. Most species have small geographic ranges
Only a small minority of species are widespread.