Quite fascinating! High-precision three-dimensional surveying of 21 different species of trees has revealed a yet unknown cycle of subtle canopy movement during the night. The ‘sleep cycles’ differed from one species to another. Detection of anomalies in overnight movement could become a future diagnostic tool to reveal stress or disease in crops. Read the full article on Science Daily
Bruce Grey Woodlands Association
Promoting healthy forests and ecosystems in Bruce and Grey Counties through education, recreation and sustainable management practices.
Bruce Grey Woodlands Association 
Very interesting and a good find.
It would be even more so to learn how the impact of wind was separated from this finding…..