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Department
Biology
Course
BIOL 2060
Professor
Joyce Buck
Semester
Fall

Description
The study by Marquis and Whelan (1994) in a simple, temperate forest food web including insectivorous birds, insects, and trees found that there was strong, direct, bottom-up control of the populations in the food web there was strong, indirect, bottom-up control of the populations in the food web there was strong, direct, top-down control of the populations in the food web there was a trophic cascade In the study by Reiners et al. (1971) on primary succession at Glacier Bay, Alaska they found a continuous, rapid increase in the number of plant species over the 2000 year time period a continuous, slow increase in the number of plant species over the 2000 year time period a rapid increase in the number of plant species during the first 200 years, and then a slow increase in species richness over the remaining period of time a slow increase in the number of plant species during the first 200 years, and then a rapid increase in species richness over the remaining period of time A beaver is a good example of a(n) dominant species ecosystem engineer predatory keystone species redundant species In the study investigating top-down and bottom-up control of community structure in oak forests of northeastern North America (Jones et al. 1998), adding acorns to experimental plots caused a decrease in the moth population caused an increase in the mice, deer, and tick populations caused an increase in the moth population caused an decrease in the mice, deer, and tick populations Compare the studies of succession by Wayne Sousa (1979a, 1979b) on intertidal boulders to those of William Reiners and colleagues (1971) at Glacier Bay, Alaska. If the first term describes Sousa's study, and the second term describes Reiner's study, which of the following pairs of terms are incorrect? (There may be more than one incorrect answer.) Comparative approach versus manipulative approach Primary succession versus secondary succession Short temporal scale versus a long temporal scale Small spatial scale versus large spatial scale Morris and Wood's (1989) studies of primary succession on Mount St Helens provided support for which of the following mechanism(s) of successional change? (There may be more than one correct answer.) Facilitation Inhibition Initial floristics Tolerance Relay floristics The Shannon-Wiener index is used to measure Species diversity Species evenness Species number Species richness Teresa Turner's (1983) studies of intertidal succession provided support for which of the following mechanism(s) of successional change? (There may be more than one correct answer.) Facilitation Inhibition Initial floristics Tolerance Relay floristics What shape is a complete lognormal distribution? Bell-shaped Exponential (J-shaped) Linear at low numbers of individuals, and plateaus at high numbers of individuals S-shaped Which of the following terms does not belong with the others? Keystone species Predator-mediated coexistence Top-down control Weak trophic interactions Which are the following groups of terms are grouped correctly? (There may be more than one correct answer.) Clements – facilitation – inhibition – tolerance Clements – initial floristics – relay floristics Connell and Slatyer – facilitation – inhibition – tolerance Connell and Slatyer – initial floristics – relay floristics Egler – initial floristics – relay floristics Egler – facilitation – inhibition – tolerance Gleason – facilitation – inhibition – tolerance Gleason – initial floristics – relay floristics In the study by Clive Jones and colleagues (1998) they tested for bottom-up control of community structure by adding acorns and looking at the response in the mice, deer, and tick populations adding mice and looking at the response in the moth population removing acorns and looking at the response in the mice, deer, and tick populations removing mice and looking for the response in the moth population The study by Marquis and Whelan (1994) in a simple, temperate forest food web including a few species of insectivorous birds, insects, and trees found that there was strong bottom-up control of the populations in the food web there was strong top-down control of the populations in the food web there was weak bottom-up control of the populations in the food web there was weak top-down control of the populations in the food web The study by Van Bael and colleagues (2003) in a complex, tropical forest including many species of omnivourous and insectivorous birds, other predators and parasites, insects, and trees found that there was strong bottom-up control of the populations in the food web there was strong top-down control of the populations in the food web there was weak bottom-up control of the populations in the food web there was weak top-down control of the populations in the food web The lognormal distribution is a plot of the Log2 number of species versus area Number of species versus log2 area Log2 number of species versus number of individuals Number of species versus log2 number of individuals The study by Lill and Marquis (2003) on tent caterpillars was provided as an example of an experiment investigating dominant species ecosystem engineers predatory keystone species redundant species The calculated value for the Shannon-Wiener index is 0 for a community with one species, and increases as species richness __________ (decreases, increases) and species evenness __________ (decreases, increases). Answer for blank #
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