The intertidal zonation seen in the barnacles in Connell's studies is due to
A) competitive interactions and predation.
B) competitive interactions and differential susceptibility to abiotic conditions.
C) predation and differential susceptibility to abiotic conditions.
D) susceptibility to abiotic conditions and parasitism.
E) parasitism and predation.

Question

Quizplus · Accepted Answer

The intertidal zonation seen in the barnacles in Connell's studies is due to competitive interactions and differential susceptibility to abiotic conditions. The competition for space and resources among barnacles of different sizes and species results in the formation of distinct zones. The higher zones are occupied by species that are better able to tolerate desiccation and temperature fluctuations, whereas the lower zones are occupied by species that are better adapted to constant immersion in seawater.

The Intertidal Zonation Seen in the Barnacles in Connell's Studies