DENDROLOGY

FOREST ECOLOGY

FOREST SUCCESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In 1988 several large forest fires occurred in Yellowstone National Park. What process occurred after these fires?
A
primary succession
B
secondary succession
C
pioneer succession
D
symbiotic succession
Explanation: 

Detailed explanation-1: -In Yellowstone, secondary succession was seen following forest fires in 1988. 1988 in Yellowstone marked a year of severe drought. Very large fires swept through the park, fueled by attempts of suppression. Surveys indicated that 793, 880 acres of land burned.

Detailed explanation-2: -Secondary succession happens when a climax community or intermediate community is impacted by a disturbance. This restarts the cycle of succession, but not back to the beginning-soil and nutrients are still present.

Detailed explanation-3: -Secondary succession starts when a disturbance (such as wind storms, insect outbreaks, logging, avalanches, bulldozers, or fire) leaves the soil intact. Seeds, spores, and roots usually remain as well. Sites that begin with secondary succession reach the next stage more quickly than during primary succession.

Detailed explanation-4: -In secondary succession, a previously occupied area is re-colonized following a disturbance that kills much or all of its community. A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire.

There is 1 question to complete.