Exam 5: Biodiversity, Species Interactions, and Population Control

The three graphs above represent the niches of three different species of mammal on the African Savannah. -Which of the following is accurate based on the graphs represented?

Carrying capacity is the population size (or density) at which the environment is saturated.

Match the items listed below with the appropriate choice -A kestrel (small hawk) and red-tailed hawk hunt for rodents in the same grassy meadow.

The cattle egret is a large North American bird that commonly sits on the backs of grazing cattle and eats insects that pester the cattle. This is an example of ____________________.

Many large mammal species that have long generation times and low reproductive rates are prone to ____________________.

Match the items listed below with the appropriate choice -Sea lampreys attach themselves to fish such as trout.

A large mountain just south of Reno, Nevada, is called Slide Mountain. This name refers to the fact that in the early 1980s, after weeks of heavy precipitation, a large section of this mountain became a destructive mudslide that slid down the east slopes and destroyed the vegetation and homes in its path. In the decades since the mudslide, the vegetation has completely regrown, and the slide area is no longer visible. This is an example of

You are an evolutionary entomologist. You have observed beetles that can raise their abdomens and give off a defensive chemical that generally repels predators. You discover a new species of beetle that raises its abdomen in a threatening way similar to the first species, but no defensive chemical is given off. You are most likely to characterize this defensive strategy as a form of

-As indicated in this image, when different species of warblers inhabit the same area, is food competition reduced?

Sea otters play a role in maintaining the biodiversity of which ecosystem?

The most common interaction between species is intraspecific competition.

Clearly explain the current view of succession in ecosystems.