ECOLOGY
ORGANISMS AND POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Connell’s elegant field experiment
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Mac Arthur’s experiment
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Alexander Von Humboldt
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Paul Ehrlich
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Detailed explanation-1: -On the rocky sea coasts of Scotland, the larger and competitively superior barnacle Balanus dominates the intertidal area and excludes the smaller barnacle Cathamalus from that zone.
Detailed explanation-2: -English: The competitive exclusion principle states that no two species that fill a similar role in an ecosystem can occupy the same area. For example, Chthamalus and Balanus (two species of barnacle) cannot live in the same tidal zone.
Detailed explanation-3: -Here Connell’s Elegant field experiment showed that on rocky sea coasts of Scotland, the larger and superior barnacle Balanus dominates the intertidal area, and excludes the smaller barnacle Chathalamus from that zone.
Detailed explanation-4: -Balanus can out-compete Chthamalus by crowding or smothering, but Chthamalus can occupy higher tide levels than Balanus because it is more resistant to desiccation. Lower on the shore, acorn barnacles mix in with the Endocladia (Turfweed) assemblage, and are also common on mussel shells.