Invasive species are well known to be a threat to the native ecosystem (usgs.gov pdf titled Wild Sheep and Deer in Hawai`i—a Threat to Fragile Ecosystems). Axis deer are particularly damaging, running rampant on Maui. They were introduced to the Big Island in 2009 and it took 5 years of government sponsored effort to successfully eradicate them. One of those involved in that project, Jack Muise (long interview on the podcast The Drive with the story of his life and how he got started) has started a business humanely hunting axis deer for commercial resale. The Struggle to Contain, and Eat, the Invasive Deer Taking over Hawaii. Axis deer were first brought to the islands in the 1860s. Now they number in the tens of thousands. (Modern Farmer). How Hawaii Became the Source of a Rare and Tasty Breed of Venison (By Evan Bleier for Inside Hook) "Harvested at night across 250,000 acres from 50 to 75 yards away using surveillance drones, UTVs and long-range rifles equipped with infrared scopes, Maui Nui's deer are killed under the watchful eyes of a USDA inspector in a manner that is designed to make the deer unaware they are being hunted."