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Verbal·Information and Ideas·Inferences
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Reported Annual Travel Distances in Four Studies of Migrating Animal Populations
SpeciesContinentDistance (km)Measurement method
Brown bearNorth America1,325GPS
Tibetan antelopeAsia700RTD
CaribouNorth America4,868GPS
ReindeerAsia1,200RTD
Some studies of migrating animals measure how far the animals travel in a year by fitting individuals with GPS tracking collars. Other studies track annual round-trip distance (RTD), which is equal to double the distance separating the two habitats a population migrates between each year. A researcher argues that since GPS records all of an animal’s movements, using the GPS method to track a population would result in significantly higher recorded travel distances than using the RTD method would. For example, it’s very likely that the distance reported for the __________
Which choice most effectively uses data from the table to complete the example?
A
Tibetan antelope would be less than 700 kilometers if the GPS method had been used.
B
caribou would be less than 4,868 kilometers if the RTD method had been used.
C
caribou would be greater than 1,325 kilometers if the RTD method had been used.
D
Tibetan antelope would be greater than 4,868 kilometers if the GPS method had been used.