What phenomenon may occur if a firebrand is transported effectively?

When a firebrand is transported effectively, it means that embers or burning material are carried away from the original fire source, potentially igniting new fires. This can occur through the wind or other means, leading to an increased chance of flare-ups in areas outside the main fire perimeter.

Flare-ups happen when these transported firebrands ignite combustible materials in new areas. This capability of firebrands to carry fire beyond the main blaze underscores the importance of understanding spotting behavior in wildland fire dynamics. It highlights how a seemingly small ember can lead to new ignition sources, creating challenges for fire management and control efforts.

The other options do not accurately reflect the impact of transported firebrands. For instance, the idea that spotting becomes less likely contradicts the nature of how embers work, as they are responsible for creating new ignitions. Widespread crown fires can occur as a consequence of effective spotting but are not a direct result of individual firebrand transport. Thus, recognizing that effective transportation of firebrands can lead to flare-ups is crucial for anticipating fire behavior and developing effective firefighting strategies.