Principles of Ecology(BIOL 4253) - EXAM 2 (sec 2)
If it is OK to have your exam returned in class with other students' exams, please initial here __________.
Mar 5, 2012
Please write your name on this test form and bubble in your name (last name first) and your student ID
number on the scantron.
Choose the best answer. If you do not know the correct answer, then guess because your score will be based only on
the number of correct answers.
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What is the formula to estimate the Generation Time (T) in a population with overlapping generations?
In Winemiller and Rose's classification of life history strategies (opportunistic, equilibrium, periodic), the
opportunistic strategy includes a ______ absolute reproductive output that represents a _____percentage of its
energy budget allocated to reproduction.
Leaves of tropical plant species contain toxic alkaloids _______ temperate plant species.
more frequently than
B. as frequently as
C. less frequently than
Size-selective predation refers to ___________.
same sized predator individuals select prey individuals that are different sizes
different sized predator individuals select prey individuals that are all about the same size
different sized predator individuals select prey individuals of different sizes
In regard to variation in the prey diets, widespread carnivores generally vary _______ carnivores with small
B. about the same as
C. less than
In the bluegill sunfish study by Werner and Mittelbach (1981), optimal foraging theory predicted that the fish should
all prey they encounter
only smaller prey individuals
only medium and larger prey individuals
only defenseless individuals
A density dependent mortality factor is one that causes ________ when the population density is higher.
more individual deaths
a higher rate or percent of deaths
the same number of deaths
Endler's experiments with guppies in artificial ponds, confirmed in field experiments, demonstrated that selection
for male color-pattern is a balance between
female mate choice and predator avoidance
female mate choice and kin selection
cooperative breeding and predator avoidance
cooperative breeding and dominance
female mate choice and cooperative breeding
Evidence among plants (for example, wild radishes) shows that once pollen has arrived on a stigma there is
_______mating success among different pollen donors.