Skip to main content
U.S. flag

An official website of the United States government

Collapsing avian community on a Hawaiian island

September 19, 2016

The viability of many species has been jeopardized by numerous negative factors over the centuries, but climate change is predicted to accelerate and increase the pressure of many of these threats, leading to extinctions. The Hawaiian honeycreepers, famous for their spectacular adaptive radiation, are predicted to experience negative responses to climate change, given their susceptibility to introduced disease, the strong linkage of disease distribution to climatic conditions, and their current distribution. We document the rapid collapse of the native avifauna on the island of Kaua‘i that corresponds to changes in climate and disease prevalence. Although multiple factors may be pressuring the community, we suggest that a tipping point has been crossed in which temperatures in forest habitats at high elevations have reached a threshold that facilitates the development of avian malaria and its vector throughout these species’ ranges. Continued incursion of invasive weeds and non-native avian competitors may be facilitated by climate change and could also contribute to declines. If current rates of decline continue, we predict multiple extinctions in the coming decades. Kaua‘i represents an early warning for the forest bird communities on the Maui and Hawai‘i islands, as well as other species around the world that are trapped within a climatic space that is rapidly disappearing.

Citation Information

Publication Year 2016
Title Collapsing avian community on a Hawaiian island
DOI 10.1126/sciadv.1600029
Authors Eben H. Paxton, Richard J. Camp, P. Marcos Gorresen, Lisa H. Crampton, David L. Leonard, Eric VanderWerf
Publication Type Article
Publication Subtype Journal Article
Series Title Science Advances
Index ID 70176477
Record Source USGS Publications Warehouse
USGS Organization Pacific Island Ecosystems Research Center