Divergent trends in distribution and abundance of landbirds in low and high elevation habitats of the Kaʻū Rainforest
Science Report
NPS/SR—2024/141
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Abstract
Federal, state, and non-governmental partners resurveyed landbirds in the Kaʻū Rainforest on the Island of Hawai‘i in 2019. Point-transect distance sampling was conducted in Hawaiʻi Volcanoes National Park, Kaʻū Forest Reserve, Kapāpala Forest Reserve, and Kapāpala Cooperative Game Management Area. This is the first comprehensive survey of the region since 2008. Through a collaborative effort, monitoring transects were consolidated to provide a consistent, repeatable sampling frame for future surveys. We estimated landbird distribution, density, and abundance for eight surveys since 1976. Changes in species-specific densities were assessed using a log-linear regression to determine trends of the six most recent surveys since 2002. Trends were assessed in three strata: low elevation (<1,500 m), high elevation (≥1,500 m), and total survey area.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | Federal Government Series |
| Title | Divergent trends in distribution and abundance of landbirds in low and high elevation habitats of the Kaʻū Rainforest |
| Series title | Science Report |
| Series number | NPS/SR—2024/141 |
| DOI | 10.36967/2303786 |
| Year Published | 2024 |
| Language | English |
| Publisher | National Park Service |
| Contributing office(s) | Pacific Island Ecosystems Research Center |
| Description | xv, 150 p. |
| Country | United States |
| State | Hawaii |
| Other Geospatial | Kaʻū Rainforest |
| Google Analytic Metrics | Metrics page |