APES Unit 2 (Biodiversity 2)

Open Ended

Why do you think species richness is relatively low at all latitudes for Oceanic land type in comparison with mainland and non-oceanic land types?

Multiple Choice

Marine scientists monitor atmospheric levels of carbon dioxide. As atmospheric levels rise, more of the gas dissolves in the oceans. Calcium carbonate (CaCO3) dissolves as more carbon dioxide enters the oceans. Marine organisms such as clams need CaCO3 to build their exoskeletons.

Based on this information, which change is most likely to be a direct result of these increasing levels of oceanic carbon dioxide?

• Frequent rainfall will dilute the effect of the carbon dioxide in the water

• There will be an overpopulation of oysters and other shelled marine species.

• The water level will rise and cause floods, damaging coastal ecosystems with contaminated water.

• Many species of marine organisms will be weakened, making them unable to produce and maintain their shells

Multiple Choice

Which of the following is true about island biodiversity?

• Small islands are more likely to have more immigrated species

• Small islands have higher biodiversity than large islands

• Small islands have more resources and as a result may have more species

• Small islands have fewer resources and as a result may have fewer species

Open Ended

Describe how converting rainforest into agricultural land could decrease species richness and/or evenness?

Multiple Choice

Which island do you predict will have the lowest biodiversity (richness and evenness)?

• Small & Far Islands

• Small & Close Islands

• Large and Close Islands

• Large and Far Islands

Multiple Choice

What creates an equilibrium point in species richness on an island?

• Immigration

• Extinction

• Both Immigration and Extinction

• None of the above

Draw

Draw competition between a specialist and generalist on a small island located far from the mainland.