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Developing accurate survey methods for estimating population sizes and trends of the critically endangered Nihoa Millerbird and Nihoa Finch.

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P. Marcos Gorresen, Richard J. Camp, Kevin W. Brinck, and Chris Farmer, 2012, Developing accurate survey methods for estimating population sizes and trends of the critically endangered Nihoa Millerbird and Nihoa Finch.: Technical Report.

Summary

This report describes the results of a comparative study of bird survey methods undertaken for the purpose of improving assessments of the conservation status for the two endemic passerines on the Island of Nihoa—Nihoa Millerbird (Sylviidae: Acrocephalus familiaris kingi) and Nihoa Finch (Fringilidae: Telespiza ultima; also referred herein as millerbird and finch)—both listed as endangered under the Federal Endangered Species Act (ESA) and Hawai`i Revised Statutes 195D. The current survey protocol, implemented since 1967, has produced a highly variable range of counts for both the millerbird and finch, making difficult assessments of population size and trend. This report details the analyses of bird survey data collected in 2010 and [...]

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Type Scheme Key
local-index unknown 70041584
local-pk unknown 70041584
series unknown Technical Report

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journalTechnical Report
parts
typePublication Place
valueHilo, HI
languageEnglish
citationTypeReport

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