Effect of Neighboring Species on Pollinator Visits to Target Species
| Neighboring species | Target species | Effect value |
|---|---|---|
| common cow-wheat | sticky catchfly | 0.2379 |
| prickly pear | jagged lavender | 0.1292 |
| viper's bugloss | viper's-U | -0.3312 |
Researchers Carolina Laura Morales and Anna Traveset gathered data about flowering plants growing alongside each other in various locations. In each case, the researchers identified one plant as a "target species" and a nearby plant as a "neighboring species." The researchers then calculated a value to show how the neighboring species affected pollinator visits to the target species. The table shows that the prickly pear had an effect value of _____.
Which choice most effectively uses data from the table to complete the example?
Explanation
Context: Morales and Traveset assigned each neighboring plant an effect value showing how it influenced pollinator visits to a target species. The blank asks for the value the table lists for prickly pear.
Answer: C) 0.1292.
Why? The prickly pear row pairs that neighbor with jagged lavender as the target species and records an effect value of 0.1292. Reading straight across that one row settles the sentence.
Traps:
- A) 0.2379 → the value for common cow-wheat, not prickly pear.
- B) -0.3312 → the value for viper's bugloss.
- D) -3.2570 → appears nowhere in the effect-value column.