On a crisp, sunny Sunday afternoon, Jake Sigg led a group that included two other members of SHARP and SF Examiner columnist Joel Engardio.  Jake explained that invasive ivy is killing the trees on the mountain and preventing their regeneration.  He said removal of the ivy and a thinning of 15% of the trees over several years would allow the plantation to regenerate.  The trees to be thinned would overwhelmingly be those that are already dead or dying, choked by ivy. For more on the situation at Mt. Davidson, see Jake’s article “The Great Tasmanian Blue Gum” in the February 2014 issue of “Miraloma Life,” the newsletter of the Miraloma Park Improvement Club.