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Biodiversity Conservation on a Newly-formed Island

The island of Hunga Tonga appeared four years ago due to volcanic activity and is rich with biodiversity worth protecting.

Four years ago, an island was erected out of what seemed like thin air. In a desolate place once only greeted by the sound of crashing waves and an occasional seabird, a formation of rock protruded outwards and upwards. The new island is officially nameless but has been coined Hunga Ha’apai (Hunga Tonga) by the locals. The island has sprawled up amidst two existing islands within the Kingdom of Tonga in the South Pacific, a region where a number of conservation projects have been carried out. However, this island, like many islands that arise suddenly due to volcanic activity, is in danger. Volcanic islands like Hunga Tonga often only last a few months before being thrust back into the ocean due to erosion.  

Hunga Tonga is one of only three newly-formed islands to be studied, allowing scientists to draw comparisons to other landmasses with similar terrain (Including, potentially, Mars!). However, many of these scientific explorations are carried out remotely, with the use of aerial or satellite surveys.  

Bright eyed with their feet planted firmly against the rocky slopes, researchers were given the opportunity to visit Hunga Tonga to perform GPS measurements and aerial drone surveying. The researchers also recorded data on several erosional features, which provided a unique context and perspective on the Hunga Tonga landscape. Remote Sensing Scientist Dan Slayback from NASA’s Goddard Space Flight Center commented: 

It really surprised me how valuable it was to be there in person for some of this.”  

Various patches of vegetation were recorded, which researchers believe could have been established as a result of bird droppings. The team also acknowledged the presence of hundreds of Sooty Terns (Onychoprion fuscatus) nesting in Hunga Tonga’s cliff gullies and a solitary barn owl caught in flight overhead. 

island-conservation-preventing-extinctions-sooty-tern-body

Already the landscape is at risk. It is wholly uncertain how long Hunga Tonga will keep its head above water before retreating back into the chilling waters of the South Pacific. Mariah Reinke, one of the students involved in the project recounted her experience: 

I climbed down into the small boat along with a few others, ready to make the short voyage to the island that is best described as a landmass similar to Mars.”

It is remarkable that Hunga Tonga has lasted so many years given the abysmal odds. Hopefully, Hunga Tonga will continue to thrive since it is clear native species could benefit from safe refuge and provide a small seed of hope for at-risk wildlife.

Source: Science Alert
Featured Photo: Aerial view of Hunga Tong. Credit: NASA

About Stephanie Dittrich

Stephanie Dittrich is a current senior in Environmental Studies at UC Santa Cruz and a transfer student from De Anza College. She is also currently pursuing a Certificate of Achievement in Geospatial Technologies and a second Associates Degree in Graphic Design from Foothill College. She has worked in multiple marketing and design focused roles at environmental nonprofits as well as the Genomics Institute at UC Santa Cruz. She just finished spending 3 months in Costa Rica conducting field work where she did an independent research project and wrote a scientific paper about flight response time in the Morpho peleides butterfly. In her spare time, Stephanie enjoys working on creative photography and design projects, often centered around wildlife photography, as well as more experimental and contemporary subject matter.

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