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Pacific Island Ecosystems Research Center
Research at the Pacific Island Ecosystems Research Center focuses on providing the scientific understanding and technologies needed to support and implement sound management and conservation of our Nation's biological resources occurring in Hawai'i and other Pacific island locations.
Featured Research
Featured Research
Learn more about research on genes involved with bird immunity and avian malaria infections in Hawaiian forest birds.
News
Mapping hotspots of first detections of non-native species
Mapping hotspots of first detections of non-native species
Non-native plants consistently drive changes in functional traits of plant communities
Non-native plants consistently drive changes in functional traits of plant communities
U.S. Geological Survey and U.S. Fish and Wildlife Service Joint News Release: Native forest bird population declines within the Big Island National Wildlife Refuge Complex
U.S. Geological Survey and U.S. Fish and Wildlife Service Joint News Release: Native forest bird population declines within the Big Island National Wildlife Refuge Complex
Publications
Distribution of yellow crazy ants (Anoplolepis gracilipes) and notes on other ant species at Wake Atoll, 6-21 October, 2023
Wake Atoll, located in the central Pacific Ocean, is a tropical coral atoll comprised of three islands totaling 696 ha of emergent land. Wake Atoll supports at least 17 species of non-native ants, but one species, the yellow crazy ant (Anoplolepis gracilipes), is especially harmful to ecosystems, including seabirds, which are federally protected species and nest throughout Wake Atoll...
Distribution and trends of endemic Hawaiian waterbirds, 1986–2023
This study updates the status assessment of four endemic endangered Hawaiian waterbird species—ae‘o (Hawaiian stilt, Himantopus mexicanus knudseni), ‘alae ke‘oke‘o (Hawaiian coot, Fulica alai), ‘alae ‘ula (Hawaiian gallinule, Gallinula galeata sandvicensis), and koloa maoli (Hawaiian duck, Anas wyvilliana)—from 1986 to 2016 by incorporating new data from 2017–2023. State-space models...
Factors affecting the density of Metabetaeus lohena (Decapoda: Alpheidae) at a high-density anchialine pool environment on the Kona Coast of the Island of Hawai‘i
Caridean shrimps (Caridea) are the dominant macroinvertebrates in most anchialine ecosystems. Hawaiian anchialine ecosystems, primarily composed of shallow surface pools connected to the ocean via hypogeal networks of cracks, tubes, and other voids, support 10 caridean shrimp species, including two federally listed as endangered. Little is known about most of these species. The objective...
Science
A citizen science program for brown treesnake removal and native species recovery at a National Historical Park in Guam
The National Park Service (NPS), U.S. Geological Survey (USGS), U.S. Fish and Wildlife Service (USFWS), and community Citizen Scientists are working together to remove brown treesnakes at War in the Pacific National Historical Park - Asan Beach Unit to aid restoration of native avian and reptile species.
Modeling First Records to Guide Invasive Species Biosurveillance in Hawai‘i
Early detection of invasive species can enable their successful eradication. With climate change and dynamic patterns of global trade, it is difficult to predict which new invasive species will next get introduced and where introduction and establishment will occur. We are analyzing where non-native species have first established in Hawai‘i to develop mapped predictions of the relative risk of new...
Population Assessments of the Pacific Sheath-Tailed Bat and Mariana Swiftlet
Using thermal cameras, we are determining the population size and cave occupancy of the Mariana swiftlet and Pacific sheath-tailed bat. Both species face extirpation from the Northern Mariana Islands and are listed as endangered. Understanding the species' population status can assist in planning recovery efforts for both species.