Pacific Island Ecosystems Research Center
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Reproduction and survival of Akiapolaau, Hawaii Akepa, Hawaii Creeper, and Other Native Forest Birds Along a Gradient of Native Bird Density in Wet Forests of Windward HawaiiPIERC Project Leader: Bethany L. Woodworth, Ph.D. |
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Objectives: Determine limiting factors responsible for gradient in forest bird densities in largest wet forest refuge on Hawaii Document life history traits of 3 endangered species native to high-elevation rainforests on Hawaii
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| Accomplishments: Evaluated 6 hypotheses for a gradient in forest bird densities (disease, predation, vegetation, cavities, food, and feral pigs) Documented survival rates, nesting success, dispersal, and population growth rates for 7 species of natives |
Significance: First ecological study of wet-forest bird community as a whole Provided managers with information on limiting factors of native birds within refuge Identified Iiwi(Vestiariacoccinea) as a species of concern based on demographic modeling |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://biology.usgs.gov/pierc/
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Page Last Modified: Friday, Dec 1, 2006
