DENDROLOGY

FOREST ECOLOGY

FOREST SUCCESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The first organisms to colonize a new rocky site are pioneer species such as
A
Large trees
B
Lichens
C
Grasses
D
Shrubs
Explanation: 

Detailed explanation-1: -Mosses along with lichens are the first organisms to colonize rocks.

Detailed explanation-2: -One of the most abundant saxicolous lichens is Rhizocarpon geographicum (Fig. 2.3. 1B, yellow), a frequent pioneer colonizer of newly exposed rock surfaces [10].

Detailed explanation-3: -Lichens are considered as pioneer organisms because there are the first to colonize bare rocks, mountains, and cliffs. They corrode rocks and accumulate a certain amount of minerals and organic matter. The plants like mosses and grasses appear later in succession, utilizing the first soil formed by lichens.

There is 1 question to complete.