The results of this study provided opportunities for further research. What may be a hypothesis that the researchers could test based on the results of this study? Choose all that apply. Question 3 options: Insect migration success is dependent on temperature. Insect flight speed is affected by wind speed because insects take advantage of wind currents when they fly. Insect population numbers are affected by land use because changes to the landscape make migration patterns shift. Insect migration is impacted by changes in land use.
Wind, Warmth Boost Insect Migration
Wind and warmth can improve travel time for the billions of insects worldwide that migrate each year, according to a first-ever radio-tracking Researchers equipped monarch butterflies and green darner dragonflies with radio transmitters and tracked them through southern Ontario and several northern States to learn how environmental factors affect daytime insect migration.
The study found wind and temperature are more important influences than precipitation for bugs on autumn migration flights spanning thousands of kilometres between their breeding and wintering grounds. Threatened by habitat loss, land use changes and global warming..some 40 percent of insect species risk extinction, yet we know little about what happens to organisms when they migrate. On average, monarchs flew about 12 km/hour and darners about 16 km/hour. The farthest a monarch travelled in one day was 143 km at 31 km/hour, including windspeed. In a single day, a darner flew 122 km at up to 77 km/hour. To attain their fastest airspeeds, the insects are likely flying high in the atmosphere to take advantage of the wind, although the researchers don't know how high.
Insects probably have an upper temperature limit for efficient flight, suggesting that global warming might ultimately affect their migration. The researchers were surprised that rain had no effect on flight speed. For insects, land use changes are a major driver of declines in numbers. If we understand where they're going, we can maybe shed light on land use change impacts during migration.
The results of this study provided opportunities for further research. What may be a hypothesis that the researchers could test based on the results of this study? Choose all that apply.
Question 3 options:
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Insect migration success is dependent on temperature. |
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Insect flight speed is affected by wind speed because insects take advantage of wind currents when they fly. |
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Insect population numbers are affected by land use because changes to the landscape make migration patterns shift. |
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Insect migration is impacted by changes in land use. |
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