Much like the devastating effect the Brown Tree Snake has had on the bird population here on Guam, the Coconut Rhinoceros Beetle is doing a number on some of the palms.
Apparently it takes root in the top of coconut palm trees and lays its eggs there. So if you’re wondering why it looks like some of them got lopped off, that’s why.
Hopefully the damage won’t be too severe or long lasting. I’ve heard anecdotally that only about 20% of the trees actually die from the infestation.
Guam Coconut Rhinoceros Beetle Project: http://cnas-re.uog.edu/crb/
(Thanks to the University of Guam for the beetle photo.)