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Ecology Concepts and Applications Study Set 2

Geology/Geography/Oceanography/Atmospheric Sciences

Quiz 17 :

Species Interactions and Community Structure

Quiz 17 :

Species Interactions and Community Structure

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Teja Tscharntke simplified the food web associated with the wetland reed Phragmites australis by dividing the species into which of the following major trophic levels?
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D

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In Jane Lubchenco's tidepool system,removal of the herbivorous snail Littorina led to
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B

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Cleaner wrasse are mutualists of other coral reef fishes.What benefit do they provide to those other fish?
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C

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A keystone species is one
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Teja Tscharntke's studies of the food web associated with Phragmites reeds revealed that
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The use of predaceous weaver ants to control pest insects in citrus orchards was first recorded in
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In Robert Paine's studies of the Washington intertidal community,which organism proved to be a keystone species?
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In the Washington intertidal community studied by Robert Paine,the most important limiting resource is
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Martinsen,Driebe,and Whitham provided evidence for _______________________ with beaver consumption of cottonwoods resulting in higher densities of herbivorous beetles.
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Weaver ants provide effective protection of citrus trees because they
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In zooplankton and intertidal communities,as the overall diversity of the food web increases,the proportion of predators in the web
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We can infer a statistically significant difference between two population means when
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Which is the correct order of prey consumption in the Antarctic pelagic food web?
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Based on studies by Jane Lubchenco,what influence does the population density of the herbivorous intertidal snail,Littorina littorea,have on the number of algal species?
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A Predator and its prey interact __________,but if the predator affects another species through this interaction,ecologists describe it as a(n)___________ interaction.
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Which statement best sums up the relationship between density of the herbivorous snail Littorina and the diversity of algae in its habitat?
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Kirk Winemiller,who described the feeding relations among freshwater fish in Venezuela and Costa Rica,simplified the food webs from his study sites by presenting common-fish webs.Common-fish webs
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Keystone species
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Human hunters in the Amazon rain forests kill
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Invasive Argentine ants have an important effect on community structure of the South African fynbos because
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