Unit Eight: Ecosystem Ecology- module a

What is required of highly complex organization

constant input of energy and exchange of macromolecules

What is the Endothermic strategy

use of thermal energy generated by metabolism

What is the Ectothermic strategy

moving into sun/shade or aggregating with others

What is the relationship between metabolic rate and unit body mass

Smaller unit body mass higher metabolic rate

Larger unit body mass lower metabolic rate

What results from a net gain in energy

Energy storage or growth of organism

What results from a net loss of energy

Loss of mass and death

How does energy and population size connect

Changes in energy result in changes in population size

How can size and number of trophies levels be effected

Change in energy resources or change in producer level

Where do photosynthetic organism source energy

Sunlight

Where do chemosynthetic organism source energy

Small inorganic molecules present in the enviroment

Where do heterotrophs source energy

Metabolized carbohydrates, lipids, and protein

How do invasive species effect ecosystems

Can exploit niches and disrupt energy flow

How does resource availability effect ecosystems

Can result in uncontrollable population growth or decline and environmental changes

How does human expansion effect natural ecosystems

Exposer to diseases destroyed native species, habit change ensues

What effects habitat change

Geological, and meteorological events