ECOLOGY
ECOLOGICAL SUCCESSION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
An old growth forest
|
|
|
An undisturbed prairie
|
|
|
Ann established mountain lake
|
|
|
New formed volcanic island
|
Detailed explanation-1: -lichens. Lichens are most likely to be pioneer species in a newly formed volcanic island.
Detailed explanation-2: -The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.
Detailed explanation-3: -During primary succession, organisms must start from scratch. First, lichens might attach themselves to rocks, and a few small plants able to live without much soil might appear. These are known as “pioneer species.”
Detailed explanation-4: -The term pioneer species is also used to refer to the first species, usually plants, to return to an area after disturbance as part of the process of secondary succession. Disturbances may include floods, tornadoes, forest fires, deforestation, or clearing by other means.
Detailed explanation-5: -newly created environment are called pioneer species, and through their interactions they build a simple initial biological community. This community becomes more complex as new species arrive.