Invasive Species

Explore the impact of invasive species on the fragile ecosystems of the Big Island. From the mongoose and feral pig to the miconia tree and fireweed, we’ll explore the challenges presented by non-native species and the ongoing efforts to control and eradicate them.

The Gold Dusk Day Gecko: Beautiful Invader

The Gold Dust Day Gecko is a small, brightly colored lizard native to Madagascar that was introduced to Hawaii in the 1970s as part of the pet trade. The gecko has established itself as an invasive species in Hawaii, where it outcompetes the native Common Brown Gecko and preys on native insects and small animals, causing significant negative impacts on the ecosystem. The Gold Dust Day Gecko is a highly specialized species adapted to warm, moist climates, and is a skilled climber that is able to access a wide range of habitats. Its vivid coloration, expressive eyes, and specialized toe pads make it a unique and fascinating species, although tourists should avoid interacting with the gecko as it is a wild animal that should not be handled or fed. The introduction of non-native species is a significant threat to global biodiversity, and efforts to control invasive species and restore native habitats can help promote biodiversity and support the long-term health of unique and fragile ecosystems such as Hawaii.

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Mongoose in hawaii

The Indian mongoose, a small, agile carnivore native to South Asia, has become a problematic invasive species in many parts of the world. One such place is Hawaii, where the mongoose was intentionally introduced in 1883 as a means of controlling the rat population on sugarcane plantations. Unfortunately, the plan backfired, and the mongoose has since become a major threat to Hawaii’s native wildlife.

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The Indian Myna Bird in Hawaii: Invasive, Intelligent and Incredible

The Indian Myna bird (Acridotheres tristis) is an intelligent and adaptable invasive species introduced to Hawaii in 1865 to control pests on sugar cane plantations. Over time, its population exploded due to its adaptability, which allowed it to thrive in various environments, leading to ecological concerns. Despite its invasive status, the Myna’s distinctive appearance and complex vocalizations, including its ability to mimic human speech, have endeared it to the people of Hawaii, and it has become a mascot for local organizations, symbolizing resilience and adaptability. These highly social birds exhibit remarkable problem-solving skills and strong social bonds, which contribute to their success in both urban and rural settings.

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