EVR 1001 – Chapter 4 – Flashcards

Global warming has been hypothesized to cause many plants to flower earlier. If bees and other pollinators begin search for food earlier in response to this, this would represent ________ within the community.

The relationship between flowering plants and caterpillars is best described as ________.

Which organism pollinates 73% of our crops?

Fungi and bacteria are __________, organisms that break down leaf litter and other nonliving matter, making it available for plant uptake.

Grazing animals such as deer are ________.

Detritivores include ________.

When a species is moved from its native area to a new area, it can become an invasive species and damage its new ecosystem. What is one reason these species are able to do damage to an ecosystem?

When a parasite lives inside the human gastrointestinal tract, absorbing some of the human's nutrients at the human's expense, it is considered a(n) __________ interaction.

Many plants have developed complicated defenses to protect themselves against __________.

When an increase in the population of prey occurs, which of the following usually occurs in the population of its predator?

Autotrophs, at the base of the trophic pyramid, exist in greater numbers than organisms at higher levels of the pyramid and also have greater stores of energy as well as greater __________.

Which is enhanced by decomposers and detritivores as they recycle nutrients?

Which of the following are most likely to be keystone species in an ecosystem?

Prairie dogs dig extensive series of tunnels. Beavers build dams that alter the hydrologic profile of an area. What sort of organisms are prairie dogs and beavers?

Which statement is correct concerning the process of ecological succession?

Ecological restoration tries to __________.

Which trophic level provides energy for all of the other trophic levels?

According to this diagram, you should find ________.

If global climate change results in an area of temperate grassland receiving less rainfall and higher temperatures, it will ________.

Zebra mussels ________.

Zooplankton populations in Lake Erie and the Hudson River have declined by up to 70% since the arrival of zebra mussels because ________.

Of the following, ________ is (are) an abiotic factor.

Which of the following is true about top predators?

________ carried out research to determine the impact of zebra mussels on fish communities.

Desert and tundra both ________.

The statement, "hiking up a mountain in the southwestern United States is like walking from Mexico to Canada," is meant to demonstrate that ________ change(s) rapidly as you change altitude and latitude.

A climax community always ________.

Benthic organisms in the Great Lakes ________.

Of the following, ________ are pioneer species.

A community may undergo a regime shift or a phase shift when ________.

Environmentally and economically acceptable means of controlling introduced invasive species include ________.

A trophic cascade is the effect of ________ on ________.

Of the following, ________ might be first to populate an area after permafrost melts in response to global climate change.

Which of the following biomes features distinct wet and dry seasons?

Which list includes biomes in the correct order from those that have the lowest annual rainfall to those that have the highest?

If you were to randomly visit a specific area on Earth, what two factors would you need to know to determine the type of biome you will visit?

In an ecosystem, phytoplankton are _____.

An earthworm that feeds on the remains of plants and animals is acting as a _____.

When a human eats a steak, the human is acting as a _____.

A cow eating grass is an example of a _____.

A seal that just ate a clam is eaten by a shark. The shark is acting as a _____.

Daniel Simberloff states that non-native species are responsible for which of the following?

Mark Davis argues that non-natives rarely threaten natives with extinction. Davis would further say that:

Which of the following statements would the two authors agree on?

Simberloff mentions Mediterranean cheatgrass as one example of a non-native species that has affected millions of acres. If Davis were the scientist talking to reporters, how might he frame the issue?

A new non-native species has recently been discovered in your area of North America. What information about the species would suggest the need for immediate action?

Legislation for limiting wild bison in Montana is being proposed where?

You are on your first trip to Montana and hope to see a wild bison. Where should you go?

How do bison and cattle differ?

Which of the following is true?

You are a member of the Gros Ventre tribe, sharing the same view as the majority of your fellow tribe members and other tribes. How do you feel about the proposed legislation restricting wild bison?

You are a Montana cattle rancher. What disease are you most concerned about your cattle's catching from wild bison?

The Verkhoyansk Mountain Range is located in which type of climate?

Where is elevation greatest in Russia?

What is the elevation of most of Russia?

Which of the following features explains why southwestern Russia has a relatively mild climate?

Select Natural Regions. Adjust the transparency sliders as needed. Lake Baikal is located in which natural region?

Why do we classify lionfish populations near the eastern United States as an invasive species? What suggests that these new populations are not an expansion of the lionfish's natural range?

Based upon what we are learning about the lionfish diet, what is most likely going to happen to Caribbean coral reefs invaded by lionfish?

What characteristics of lionfish contribute to their ability to spread and become established in new areas?

How did the fish biologists determine the diet of lionfish in the regions where the lionfish have invaded?

Based upon what we are learning about invasive lionfish populations in the Caribbean and along the Atlantic coast of the United States, these lionfish populations __________.

What does the left y-axis of the graph represent?

What does the blue graph line represent?

After 20 years, what was the total number of bird species?

In which year was the density of birds greatest?

In which period did the number of species increase most rapidly?

What factor is most likely to have caused the change in the number of bird species that occurred between years 30 and 60?

Which of the following statements best describes the bird populations during the period from 100 to 160 years?

The climax, or final stage, of old-field succession is an oak-hickory forest, which is usually well established after 160 years. What happens to the diversity of bird species after 160 years?

What type of biome has been converted most frequently by humans for agricultural use?