DENDROLOGY

FOREST ECOLOGY

FOREST SUCCESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Changes in an ecosystem over a long period of time are shown in the diagram above. These changes will most likely lead to a
A
stable ecosystem that can last for many years
B
loss of heterotrophs that cannot be recovered
C
long-term rise in environmental temperatures
D
forest consisting of only producers and decomposers
Explanation: 

Detailed explanation-1: -Succession is always caused by natural events. Secondary succession can happen after primary succession or independently of primary succession.

Detailed explanation-2: -Disturbances act to disrupt stable ecosystems and clear species’ habitat. As a result, disturbances lead to species movement into the newly cleared area (secondary succession). Once an area is cleared there is a progressive increase in species richness and competition between species takes place.

Detailed explanation-3: -In many cases, a community arising in a disturbed area goes through a series of shifts in composition, often over the course of many years. This series of changes is called ecological succession.

There is 1 question to complete.