Exam 54: Community Ecology

In Müllerian mimicry a defenseless species is protected by its resemblance to a dangerous species.

The ____ niche is the broadest role that an organism can potentially have in a community.

A frog that lacks chemical defenses, yet resembles a poison arrow frog, would exhibit:

Destructive outbreaks of pests are ____ in cultivated fields, which are low-diversity communities, than in natural communities with greater species richness.

Species diversity is often very high in the region between two distinct communities, known as a(n):

Resource partitioning may include which of the following?

Community ____ is the description and analysis of patterns and processes within a community.

Niches apply to:

Primary succession may be seen:

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

The potential ecological niche of a species is its realized niche.

____ begins in an area where there was a preexisting community and well-formed soil.

Figure 54-1 In Experimental Condition 1 of the accompanying figure, the distribution of Balanus suggests: that

In which of the following habitat types would species diversity be expected to be relatively low?

The relationship between reef-building coral animals and zooxanthellae is classified as:

Which habitat would most likely have the greatest species richness?

Describe the factors that affect species richness. Describe the parameters that would probably result in an environment with the greatest possible species richness. Knowing what you do about the tropical rain forests, do they meet these expected parameters?

An example of both chemical protection and coevolution can be seen in:

Figure 54-1 In Experimental Condition 2 of the accompanying figure, the distribution of Chthamalus suggests that:

Competition, predation, and ____ are the main types of interactions that occur among species in a community.