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Cards In This Set
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An endangered frog species lives in only a few wetland patches found in South Texas. The South Texas is its_________and the wetland patches are its________.
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Geographic range; realized niche
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Fountain darter can only be found in Comal and San Marcos Springs, so it is a(n)________species.
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Endemic
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Which dispersion should be favored among plants that favor social groups?
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Clustered
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The advantage(s) of dispersal is (are)_______.
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Individuals can move between suitable habitats, allowing species to colonize areas outside of their geographic ranges, a way to avoid areas of high competition or high predation risk
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Which of the following populations would be the best estimated by an area-based survey?
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Flowers in a field
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Which of the following populations would be the best estimated by a line-transect survey?
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Fish on a coral reef
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Elephants should live in________populations, and bees should live in________populations.
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Low-density;high-density
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Which of the following is an example of dispersal limitation?
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All turtles that try to cross the highway to mate are killed
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WHich of the following does (do) explain why an ideal free distribution might not be achieved in nature?
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Individuals may nt be aware that other habitats exist, an individuals fitness is not solely determined by maximizing its resources, presence of predators or territoriality may preclude fre movement between habitats.
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In a population growing according to the exponential growth model, population size is___________.
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Not limited
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Negative density dependence occurs when the___________.
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Per capita population growth rate decreases as population becomes larger
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Under positive density dependence, population growth rate_________.
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Increases as populations become larger
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Lice find mates more easily and produce more offspring when there are many lice on an individual fish. This is an example of_________.
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Positive density-dependent population regulation
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The Allee effect describes_________.
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Negative density-dependent population regulation
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WHich factors could limit a species carrying capacity?I. the amount of food availableII. the number of eggs a female can produceIII. the number of nesting sites present
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I and III
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