Ch.55 - Conservation BiologySee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology

Conservation Biology

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Sections
Conservation Biology
Additional Problems
Which of the following observations provides the best evidence of a biodiversity crisis?a. the incursion of a non-native speciesb. increasing pollution levelsc. high rate of extinctiond. climate change
Which of the following terms includes all of the others?a. species diversityb. biodiversityc. genetic diversityd. ecosystem diversity
Which of the following threats to biodiversity is targeted at specific species rather than groups of species?a. introduced speciesb. habitat destructionc. increased levels of atmospheric carbon dioxide, a cause of global warmingd. overharvesting
Introduced species can have deleterious effects on biological communities by ________.a. competing with native species for resources and displacing themb. spreading rapidly in their new regionc. reducing erosiond. increasing the biodiversity in their new region
Burning fossil fuels releases oxides of sulfur and nitrogen. These air pollutants can be responsible for ________.a. the death of fish in lakesb. precipitation with a pH as high as 8.0c. eutrophication of lakesd. global temperature decrease
Which of the following criteria have to be met for a species to qualify as invasive?a. endemic to the area, spreads rapidly, and displaces foreign speciesb. introduced to a new area, spreads rapidly, and displaces native speciesc. introduced to a new area, spreads rapidly, and displaces other invasive speciesd. endemic to the area, spreads slowly, and displaces native species
What is a critical load?a. the amount of nutrient augmentation necessary to bring a depleted habitat back to its former levelb. the level of a given toxin in an ecosystem that is lethal to 50 percent of the species presentc. the amount of added nutrient that can be absorbed by plants without damaging ecosystem integrityd. the number of predators an ecosystem can support that effectively culls prey populations to healthy levels
Which of the following outcomes is caused by excessive nutrient runoff into aquatic ecosystems?a. depletion of ozone layerb. acid precipitationc. biological magnificationd. eutrophication
Which of the following factors causes extremely high levels of toxic chemicals in fish-eating birds?a. acid precipitationb. biological magnificationc. greenhouse effectd. eutrophication
The main cause of the increase in the amount of CO 2 in Earth's atmosphere over the past 150 years isa. increased worldwide primary production.b. increased worldwide standing crop.c. an increase in the amount of infrared radiation absorbed by the atmosphere.d. the burning of larger amounts of wood and fossil fuels.
What is the single greatest threat to biodiversity?a. overharvesting of commercially important speciesb. habitat alteration, fragmentation, and destructionc. introduced species that compete with native speciesd. novel pathogens
How is habitat fragmentation related to extinction?a. More soil is subject to erosion.b. Fragments generate silt that negatively affects drainages.c. Populations of organisms in fragments are smaller and, thus, more susceptible to extinction.d. Less carbon dioxide is absorbed by plants.e. Animals are forced out of habitat fragments.
Describe 3 threats to biodiversity. 
Describe the Water Cycle. Where is the majority of Earth's water stored?
Describe two examples, one plant and one animal, of how biogeography supports evolutionary theory.
Why is "climate change" a more appropriate term than "global warming"?
Explain how the Hadley cells function, and what winds they generate.
How do intermediate levels of disturbance influence diversity and community structure ?