Aloha, Talofa, Greetings, Tirow, Hafa adai

There are many ways to welcome you to the National Park Service's only island network, which spans thousands of miles in the tropics of the south and central Pacific Ocean.

Dotted with a handful of national park units, the Pacific Island Inventory & Monitoring Network includes 11 protected areas on the naturally and culturally rich islands and archipelagoes of Hawai‘i, American Samoa, Guam, and the Northern Mariana Islands.

The Pacific Island Inventory & Monitoring Network is one of 32 National Park Service I&M Networks across the country that conduct natural resource inventories and long-term monitoring. 

Explore these pages to learn more about the information we gather and what we're learning about America's parks in the Pacific.

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6 minutes, 32 seconds

Pacific Island Network I&M staff perform inventory and monitoring in remote areas of Haleakalā National Park

Coral bleaching in the Pacific
Tracking Coral Reef Health

Results from the most recent surveys reveal varying changes in coral cover at each park in the Pacific.

Snorkeler in Waikolu Stream
A Win for Science and Stream Protection

Waikolu Stream in Kalaupapa National Historical Park provides critical habitat for endemic Hawaiian species.

Hawaiʻi ʻAmakihi
Tracking the Spread of Avian Malaria

Hawai'i 'amakihi being tested for avian malaria. The malaria parasite is passed to birds through the bite of non-native mosquitoes.

Pacific Kingfisher
Rare Bird Species Detected

Rare species detected during forest bird surveys in the National Park of American Samoa.

Kahili ginger
Scientists Examine Non-native Plants

Invasive species represent one of the main threats to vulnerable island biodiversity.

Stunning views from Kalaupapa National Park
Parks & Partners

Learn about the work we're doing in parks

A threatened i‘iwi honeycreeper sits perched atop an endemic ‘ōhi‘a tree.  Photo by JH
What We Inventory

Basic inventories of natural resources provide a starting point for long-term monitoring

PACN I&M trained staff perform monitoring in War in the Pacific National Historical Park
What We Monitor

Monitoring helps determine the overall health and condition of park resources

Last updated: August 5, 2022