A team from the University of Hawaiʻi at Hilo is undertaking aerial surveys to combat one of the most destructive invasive species in Hawaii, the coconut rhinoceros beetle (CRB). In October, members of the Spatial Data Analysis and Visualization Lab collaborated with the Big Island Invasive Species Committee to survey approximately 4,000 acres in the Kona area.
Utilizing a helicopter equipped with advanced cameras and GPS technology, the researchers aimed to identify mulch piles and signs of beetle infestation. Olivia Jarvis, a geospatial research associate with a background in environmental science, stated, “The goal of this survey was to fly over residential areas to search for mulch and green waste piles so BIISC can better target their ground surveys for CRB grubs and beetles.”
The flight crew included pilot David Okita from Volcano Helicopters, alongside BIISC”s Dustin Swan and SDAV researchers Jarvis, Andrew Meyer, and Ryan Perroy, a geography and environmental science professor leading the SDAV lab. Meyer explained, “My main contribution on the day was to help set up SDAV”s helicopter imaging rig, which allows us to securely mount visual cameras for helicopter-based mapping operations. I was also providing our skillful pilot, David Okita, a flight guide to ensure we effectively map the area of interest.”
Upon returning to Hilo, the SDAV team processed over 6,000 high-resolution images, creating a digital mosaic map. This analysis focused on locating mulch piles and damaged coconut trees, which could indicate the presence of the beetle. The researchers believe that aerial surveillance will enhance the efficiency and speed of tracking this invasive species.
For further updates, visit UH Hilo Stories.
