49 notecards = 13 pages (4 cards per page)
Most acid precipitation results from the combination of _____ with water in the atmosphere, forming strong acids that fall with rain or snow.
Which of the following is part of conservation biology?
Which of the following organisms was/were introduced by humans into the United States or its territories?
The single greatest current threat to biodiversity is _____.
If all individuals in the last remaining population of a particular
bird species were all highly related, which type of diversity would be
of greatest concern when planning to keep the species from going
What is the biological significance of genetic diversity between populations?
A.Diseases and parasites are not spread between separated
With regard to the destruction of tropical forests, the focus is often on biodiversity and the impact to these ecosystems. What is a direct benefit to humans that helps explain why these forests need to be preserved?
A.This diversity could contain undocumented insect
Ecosystem services include processes that increase the quality of the
abiotic environment. Which of the following processes would fall under
A.only I, II, and IV
During the inventory of bacterial genes present in the Sargasso Sea in the middle of the Atlantic Ocean, a research team concluded that at least 1800 bacterial species were discovered. Based on what you know about this area, what would you expect to see in coral reef waters?
A.slightly greater genetic diversity
Which of the following statements regarding extinction is (are)
Which of the following ecological locations has the greatest species diversity?
Which of the following provides the best evidence of a biodiversity crisis?
A.increasing pollution levels
Which of the following terms includes all of the others?
To better comprehend the magnitude of current extinctions, it will be necessary to _____.
A.differentiate between plant extinction and animal extinction
We should care about loss in biodiversity in other species because of
Which of the following is the most direct threat to biodiversity?
Introduced species can have deleterious effects on biological
communities by _____.
A.I, II, III and IV
Overharvesting encourages extinction and is most likely to affect _____.
A.animals that occupy a broad ecological niche
Of the following ecosystem types, which have been impacted the most by humans?
A.taiga and second-growth forests
Which of the following is a type of work a conservation biologist
would be involved?
A.I, II, III and IV
Burning fossil fuels releases oxides of sulfur and nitrogen. These
air pollutants can be responsible for _____.
Researchers have been studying a rare population of eighty-seven voles in an isolated area. Ten voles from a larger population were added to this isolated population. Besides having ten additional animals, what benefits are there to importing individuals?
A.Additional animals would increase beneficial genetic
A parasitic fungus, Geomyces destructans, has decimated millions of bats in the United States since it was first observed in upstate New York in 2006. The disease has been named White-nose syndrome because of the white fungal hyphae that cover the bat upon infection. It is believed that this fungus was introduced from Europe by into caves with hibernating bat populations. Which prediction most likely reflects changes that will occur in natural communities as a result of massive bat mortality?
A.Decreased bird populations as the spread of the fungus infects
Which of the following is associated with the small-population approach to species conservation?
A.minimum viable population
The estimated density or number of individuals needed for a species to maintain or increase its numbers in a region is the _____.
On Easter Island, data show that it was once covered by massive palm
trees. How can an ecosystem collapse from removal of just one species
of large tree?
The primary difference between the small-population approach (S-PA) and the declining-population approach (D-PA) to biodiversity recovery is _____.
A.S-PA would investigate and eliminate all of the human impacts on
the habitat of the species being studied for recovery
Managing southeastern forests specifically for the red-cockaded woodpecker _____.
A.caused other species of songbird to decline
True or false? Biologists studied the effects of forest fragmentation by calculating the difference between the amount of plant biomass in the edges of forest fragments and the interiors of unfragmented forest.
Which size forest fragment would be most affected by habitat fragmentation over a given period of time?
Which of the following statements about the effects of forest fragmentation on plant biomass and species diversity is true?
A.The loss of plant biomass has a domino effect on other species
that live in the forest fragment.
Brown-headed cowbirds utilize fragmented forests effectively by _____.
A.roosting in forest trees and nesting in grassy
Movement (wildlife) corridors can be harmful to certain species because they _____.
Which of the following is generally true about the current research regarding forest fragmentation?
A.Fragmented forests are the goal of conservation biologists who
design wildlife preserves.
What is the biggest problem with selecting a site for a preserve?
A.Only lands that are not useful to human activities are available
Which of these would NOT contribute to a global increase in temperature?
Switching from fossil fuels to _____ energy would significantly decrease the release of carbon dioxide into the atmosphere.
Which of these are the two major sources of nitrate pollution in rivers?
A.the burning of fossil fuels by factories and cars
Aquatic nitrate pollution can result in _____.
Agricultural lands frequently require nutrient augmentation because _____.
A.cultivation of agricultural land inhibits the decomposition of
What is a critical load?
A.the amount of added nutrient that can be absorbed by plants
without damaging ecosystem integrity
Which of the following statements best describes why ecologists are currently concerned with global warming and the thawing of permafrost in many areas of the tundra biome?
A.Migratory species of birds will likely be less successful finding
food in thawed tundra, and their abundance will drop
This causes extremely high levels of toxic chemicals in fish-eating birds.
The shift in the peak of caterpillar season is most likely due to _____.
A.earlier migration returns of flycatchers
Elevated carbon dioxide levels have been shown to contribute to the greenhouse effect, resulting in an increase in mean global temperature. Ecosystems where the largest warming has already occurred include snow-covered northern coniferous forests, tundra, and arctic sea ice habitats. Which statement best explains how the elimination of ice-covered ecosystems affects the rise or fall in global temperature?
A.Melting ice releases dissolved ozone gas, which adds to the
Eutrophication is often caused by excess limiting nutrient runoff from agricultural fields into aquatic ecosystems. This results in massive algal blooms, which eventually die and decompose, ultimately depleting the dissolved oxygen and killing large numbers of fish and other aquatic organism. Predict which of the following human actions would best address the problem of eutrophication near agricultural areas?
A.After each eutrophication event, remove the dead fish and
invertebrates to place on agricultural fields instead of
Which of the following statements about protected areas that have
been established to preserve biodiversity are correct?
A.only II, III, and IV
The main goal of sustainable development is to _____.
A.reevaluating and re-implementing management plans over
The effort to develop, manage, and conserve Earth's resources to meet the needs of people today without limiting the ability of future generations to meet their needs is called _____.