FOREST ECOLOGY
FOREST SUCCESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A rocky island appears as oceanic waters recede. Identify the first forms of vegetation that would probably appear first on the bare rocks.
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lichens
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weeds
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shrubs
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pioneer trees
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Explanation:
Detailed explanation-1: -Mosses and lichens are the first creatures to colonise rocks and thus have a significant ecological impact. They breakdown rocks, preparing the substrate for the growth of higher plants. Mosses decrease the impact of rain and prevent soil erosion by forming dense mats on the soil.
Detailed explanation-2: -The lichens are the pioneer species and invade the bare rocks. Mosses grow in with the lichens to form a mat over the substratum. Bigger trees appear in the later stages and are succeeded by other species untill a climax community forms an equilibrium with the environment.
There is 1 question to complete.