Interpreting Data Airborne pollen of wind-pollinated plants such as pines, oaks, weeds
Chapter 16, Problem 14(choose chapter or problem)
Interpreting Data Airborne pollen of wind-pollinated plants such as pines, oaks, weeds, and grasses causes seasonal allergy symptoms in many people. As global warming lengthens the growing season for plants, scientists predict longer periods of misery for allergy sufferers. However, global warming does not affect all regions equally (see Figure 18.44). The table below shows the length of the average season in nine locations for ragweed pollen, an allergen that affects millions of people. Calculate the change in length of the pollen season from 1995 to 2009 for each location and graph this information against latitude. Is there a latitudinal trend in the length of ragweed season? You may want to record the data on a map to help you visualize the geographic locations at which samples were taken.
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