INTRO TO ENVIRO EXPO PART 4 - Loudoun County Public ...
[Pages:18]SUCCESSION IN ECOSYSTEMS
INTRO TO ENVIRO EXPO PART 4
DO YOU KNOW THESE WORDS???
To thrive, prosper, grow. To be accomplished - (a
Succeed ? success, to succeed at winning the game). To
follow or replace another (like in an election)
Pioneer ?
Thinking wild west ? they were the first people to settle in the west. The early settlers.
Climax of a story ?
The peak of a story, the main event. The conclusion.
Primary ? First
Secondary - Second
SUCCESSION - a series of changes in a community in which new populations of organisms
gradually replace existing ones
SUCCESSION -
Can take 100's ? 1,000's of years to occur
Each new community that arises makes it harder for the previous community to survive
PRIMARY SUCCESSION-
colonization of new sites by communities of organisms
occurs on a surface where no ecosystem existed before
(takes place on bare rock, cliffs, and sand dunes)
PRIMARY SUCCESSION-
New bare rock comes from 2 sources:
Volcanic lava flow cools & forms rock Glaciers retreat & expose rock
PIONEER ORGANISMS-
- first organisms to colonize a new site and begin the process of ecological succession.
ie: lichens are the first to colonize lava rocks .
Look for moss and lichens ? they will eventually break the rock down into soil, in which other plants could grow.
Lichens are a fungus and usually an algae (symbiotic relationship)
PRIMARY SUCCESSION -
Rock
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- ecosystem succession ecosystem succession who what is
- intro to enviro expo part 4 loudoun county public
- ecological succession poster project due by wednesday
- examples of ecological succession wfisd
- model 1 primary succession
- ecological succession go eagles
- disturbances succession
- succession jensen biology
- succession lesson plan