Decline in black cherry regeneration may herald wider forest change

Reasons for more than a decade of black cherry regeneration decline in the Allegheny Hardwood Regions are not well-understood; a team of scientists looked at five leading hypotheses; they found that the most likely factors are pathogens and reduced nitrogen availability, and that black cherry may actually be a story of change on a much bigger scale.

from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/03/210324155119.htm