MSCI B210 Chapter Notes - Chapter 10: Butterflyfish, Keystone Species, Intraspecific Competition
13 Jan 2020
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Coral seas: as you watch the introduction sequence, list three abiotic, or nonliving factors in this ecosystem. Sunlight, currents, and nutrients are abiotic factors: a keystone species is one that plays a critical role in maintaining an ecological community. Hint: choose from predator-prey, interspecific competition, intraspecific competition, mutualism, parasitism, or commensalism. I would classify the relationship between coral and the small crabs as mutualism because the coral is shelter and the crabs are protection from predators. I would classify the relationship between parrotfish and coral as predator-prey because the parrotfish is the predator and coral is the prey: jacks and silversides are a good example of an evolutionary arms race between predators and prey. Hint: the shrimp consume and live off the sponge. The quickest males are most likely to pass their traits on to the next generation making the future generations faster: the banded pipefish shown practice monogamy.
