DENDROLOGY

FOREST ECOLOGY

FOREST SUCCESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Identify the pioneer species.
A
choke cherry
B
lichen
C
ponderosa pine
D
aspen
Explanation: 

Detailed explanation-1: -Lichens are considered as pioneer species in primary succession on rocks because they can easily grow on rocks where other plants cannot grow. They produce oxalic acid which induced the weathering of rocks and thus soil is formed.

Detailed explanation-2: -Common examples of pioneer species include bacteria, lichen, mosses, and fungi. In the ocean they can be phytoplankton, zooplankton, and algae.

Detailed explanation-3: -Lichen is a pioneer of succession in lithosere. So the correct option is B, lithosere.

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