2018 Kaua'i forest bird population estimates and trends

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dc.contributor.authorPaxton, Eben H.
dc.contributor.authorBrinck, Kevin W.
dc.contributor.authorCrampton, Lisa H.
dc.contributor.authorHite, Justin
dc.contributor.authorCostantini, Maria
dc.date.accessioned2020-11-12T07:52:34Z
dc.date.available2020-11-12T07:52:34Z
dc.date.issued2020-11-11
dc.descriptionTechnical report with figures and tables.
dc.description.abstractKaua‘i's native forest birds have experienced steep declines since the beginning of systematic surveys in 1981, and declines have accelerated in recent decades. This report details the analysis of the most recent surveys conducted in 2018. Incorporating the new survey results, long-term trends continue to show sharp declines for all native honeycreeper species with the exception of ‘apapane (Himatione sanguinea), which has stable numbers in core areas of its range. Kaua‘i ‘elepaio (Chasiempis sclateri) continued to decline in the outer portions of its range but increased in the core areas of its range. Abundance estimates of forest birds ranged from slightly higher to slightly lower in most species, indicating a relatively stable period from 2012–2018, and a pause from the rapid declines seen in earlier periods. Many native species now exist in very low numbers, and variation in estimates from survey to survey will increase.
dc.format.extent31 pages
dc.identifier.urihttp://hdl.handle.net/10790/5507
dc.language.isoen-US
dc.relation.ispartofseriesHCSU Technical Report Series;98
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/
dc.subjectforest birds
dc.subjectHawaii
dc.subjectnative species
dc.subjectHawaii--Kauai
dc.subjectpopulation estimates
dc.title2018 Kaua'i forest bird population estimates and trends
dc.typeTechnical Report
dc.type.dcmiText

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