1. Unit 3 What shapes an Ecosystem?

2. Climate
Weather – day to day condition of Earth’s atmosphere at a particular time and place
Climate a year to year conditions of temperature and precipitation in a particular region

3. Factors that effect climate
Trapping of heat by the atmosphere
latitude
Transport of heat and wind and ocean currents
Amount of precipitation
Shape of landmass
Elevation of landmass

4. GREENHOUSE EFFECT
Carbon dioxide-methane-water vapor and other atmosphere gases trap heat energy and maintain Earth’s temperature range. The natural situation in which heat is retained by this layer of greenhouse gases is called the greenhouse effect.

6. Latitude
As a result of differences in latitude and the angle of heating, Earth has three main climates zones:
Temperate
Tropical
polar

8. Biotic Factors Living Factors that influence an ecosystem Plant life
Animal life

9. Abiotic Factors
Physical, non-living factors that influence an ecosystem
Examples-temperature, precipitation, humidity, wind, nutrients, sunlight

10. The area where an organism lives is called its habitat.
Biotic and Abiotic factors determine the survival and growth of an organism and the productivity of the ecosystem in which an organism lives.
The area where an organism lives is called its habitat.
A niche is the full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions. It is an organisms’ occupation.

11. Ecological Succession
a series of predictable changes in an environment

12. Succession
Primary Succession – succession that occurs on the surface where no soil exists
Pioneer Species first species to populate the area
Examples- lichen and moss

13. Examples of Pioneer Species
Lichen

14. Succession
Secondary Succession – following a disturbance that destroys a community without destroying the soil.
Example- land cleared and plowed for farming
Example – Fires set by lightning