Exam 54: Community Ecology

Which of the following is an ideal example of where to study secondary succession?

The orderly replacement of one community by another is known as:

Competition between species 1 and species 2 is beneficial for species 1 and harmful for species 2.

The association of nitrogen fixing bacteria of the genus Rhizobium with legumes such as peas is an example of mutualism.

Nicotine synthesis is an adaptation of plant chemical defense against insects.

In a lake, a certain native species of zooplankton is found evenly distributed in the water column. After introduction of a different species of zooplankton, the native species is only found in the shallow water zone. This is most likely an illustration of:

The idea that older, more stable habitats have greater species richness than habitats subjected to frequent, widespread disturbances is known as:

One reason that the realized niche and fundamental niche are not typically the same is:

Based on latitude only, which of the following U.S. states would be expected to have the highest species richness?

The associated figure provides support for which of the following processes? ​ ​

Traditionally, most ecologists have assumed that community stability is a consequence of:

Niches apply to:

The community found on a rotting log would include:

In an ecosystem's bottom-up processes, predators affect the abundances of other populations in the ecological community.

Which organisms may be a keystone species in a tropical rain forest?