
About 2 decades ago, David Liittschwager and Susan Middleton wrote and photographed a book called Remains of a Rainbow which highlighted the amazing but vanishing native biota of the Hawaiian archipelago. I thought the title was quite evocative, conjuring images of what was lost and what is still around. It came to mind when I stumbled upon this rare interaction at the restoration site.
Of all my posts that I’ve done over the years here at Studia Mirabilium, I’ve particularly like re-reading the ones that I’ve categorized under Sharing the Planet. For the decisions and actions that I described in those early posts directly affect me to this day.
16 years ago, I did my first post about the Manoa Cliff restoration project and how we could see a better future for native forests if we did out part. In 2022, I did a couple of posts as a decade review of said restoration project (Part I and II) highlighting the positive changes to the forest and lessons learned. Namely, that us keystone individuals can be stand-ins for keystone species. And then in 2023, I did a post on Drosophila reintroduction, hoping that we can become more hands off as more actual keystone species return to the native forest.
It can be tenuous in the beginning though. For not all introductions have been successful. Even though we have sufficient host plants and habitat, a concerted and sustained effort to release Kamehameha butterfly has not yet lead to an established population. Drosophila hemipeza on the surface seems even more tenuous, for not only does the species need fairly rare plants as hosts, but they also need to be at a certain level of decay.
So it came as quite the happy surprise to come across this small group of D. hemipeza on a Clermontia kakeana. It had been a number of months since I last saw a sighting of these rare native fruit flies. Hopefully this is a sign that the population has become established. Now we must continue to do our part to keep them thriving.
Which circles back to my original thoughts for this post. Hawai`i, which has lost so much, can seem like such a lost cause. How much of the rainbow can actually be rebuilt? It’s a questioned that I’ve pondered for almost 2 decades now and I feel fortunate that I’ve been able to use that time to try and get some answers. These posts on this blog have been a record of my attempts. Mark this post as another one, as seeing these flies back in their habitat only strengthens the cause. And as always the work continues.









