Question:

Does the destruction of large trees in a windstorm change forests in any important way? Here is the conclusion of a study that found that the answer is no:

We found surprisingly little divergence between treefall areas and adjacent control areas in the richness of woody plants (P = 0.62), in total stem densities (P = 0.98), or in population size or structure for any individual shrub or tree species.

The two P values refer to null hypothesis that say “no change” in measurements between treefall and control areas. Explain clearly why these values provide no evidence of change.