Term
| What is ecological succession? and what are the 2 types? |
|
Definition
| gradual replacement of 1 species by another as conditions change over time. The 2 types are primary & secondary |
|
|
Term
|
Definition
| an event that alters ecosystem structure and function; often natural part of health ecosystem |
|
|
Term
| What factors determine the climax of an ecosystem? |
|
Definition
| climate, constant species, soil |
|
|
Term
| What is secondary succession? |
|
Definition
| development of biotic communities on previously disturbed vegetated surfaces; faster than primary and initiated by invading species (weeds) |
|
|
Term
| what occurs with succession and what does the INTERMEDIATE DIVERSITY HYPOTHESIS state? |
|
Definition
| NPP decreases, biodiversity increases. moderate disturbance = more biodiversity than high/ low disturbance |
|
|
Term
| Name the effects of human activity on ecological succession |
|
Definition
| keep ecosystems in early stages, increase productivity, ^ water/nutrient cycling with greater losses, reduced biodiversity, increase in pioneer species |
|
|
Term
|
Definition
| components compact, expel fluid, and become rock |
|
|
Term
|
Definition
| ... one of the most important nutrient cycles found in terrestrial ecosystems |
|
|
Term
| What is the law of entropy |
|
Definition
| when energy is transformed from one form to another, there is a decrease in the quality of useable energy; energy cannot be recycled; the more energy transformed the more it's dispersed into the atmosphere |
|
|
Term
|
Definition
| ... the capacity to do work |
|
|
Term
|
Definition
| ... diffused and dispersed, low temperatures (oceans) |
|
|
Term
| High quality energy is... |
|
Definition
| ... easy to use, disperses quickly (fire, gasoline |
|
|
Term
|
Definition
| energy from an objects motion or mass |
|
|
Term
|
Definition
| stored energy available for later use |
|
|
