Home > 55: Conservation Biology and Restoration Ecology > Pre-Test
 
 
Chapter 55: Conservation Biology and Restoration Ecology
 
Pre-Test
 

Pre-Test


1 .       Current rates of extinction may be _____ those of the past 100,000 years. (Overview E-Book) [Hint]

 100 times higher than
 50 times lower than
 the same as
 10 times higher than
 1,000 times higher than
2 .       The primary cause of the extinction of native species of cichlids in Lake Victoria is _____. (Concept 55.1E-Book) [Hint]

 a decrease in the lake's size due to the use of water in irrigation
 recreational use
 the introduction of an exotic predator
 fragmentation
 PVA
3 .       The single greatest current threat to biodiversity is _____. (Concept 55.1E-Book) [Hint]

 global warming
 introduced species
 overhunting
 habitat destruction
 reduced genetic variability
4 .       In a population of 3,000 adult males and 7,000 adult females, where all adult females and 10% of adult males mate, the effective population size would be approximately _____. (Concept 55.2E-Book) [Hint]

 8,400
 600
 1,150
 840
 11,507
5 .       Which of the following does not apply to a population with a low effective population size? (Concept 55.2E-Book) [Hint]

 genetic drift
 increased genetic diversity
 reduced heterozygosity
 increased homozygosity
 inbreeding
6 .       The estimated density or number of individuals needed for a species to maintain or increase its numbers in a region is the _____. (Concept 55.2E-Book) [Hint]

 minimum viable population (MVP)
 stochastic population
 metapopulation
 Hardy-Weinberg equilibrium
 endemic population
7 .       Landscape ecology addresses _____. (Concept 55.3E-Book) [Hint]

 metapopulation studies
 the populations found in the same environment
 the trees and flowers planted around human dwellings
 patterns of landscape use and biodiversity conservation
 source and sink populations
8 .       Edge species _____. (Concept 55.3E-Book) [Hint]

 decrease biodiversity
 exist only in areas that have been altered by humans
 require the unique homogenous edge environment
 are all nest parasites
 may require conditions found in both of the bordering ecosystems
9 .       Connections between habitat fragments are referred to as _____. (Concept 55.3E-Book) [Hint]

 movement corridors
 highways
 minimum dynamic areas
 riparian areas
 landscapes
10 .       Biodiversity hot spots are _____. (Concept 55.3E-Book) [Hint]

 distributed evenly throughout the biosphere
 regions with the potential for high levels of extinction
 the same for all groups of organisms
 regions where thermophilic species thrive
 relatively resistant to environmental degradation due to their large number of species





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