Pacific Island Ecosystems Research Center

Data and Tools

Filter Total Items: 126
Date published: January 1, 2018

Northwestern Hawaiian Islands: Impacts to Avifauna from the Tohoku Tsunami 2011

This collection of nine datasets covers Midway Atoll and Laysan Island in the Northwestern Hawaiian Islands, and was created to help estimate the impacts of the March 11, 2011 tsunami event on avifauna in the Northwestern Hawaiian Islands. For each island, we generated a coastline dataset and a land cover dataset based on satellite imagery taken the year before the tsuanmi event. We also...

Date published: January 1, 2018

Midway Atoll Hatch Year 2012 Black-footed Albatross Survey Areas

Approximately one-third of the global population of black-footed albatrosses (Phoebastria nigripes) nest at Midway Atoll in the Northwestern Hawaiian Islands. As part of an effort to monitor albatross at this globally important site, USFWS personnel and volunteers conduct an annual, spatially-explicit, atoll-wide albatross census during the peak nesting when albatrosses are attending an egg (...

Date published: January 1, 2018

Monitoring Hawaiian Biodiversity: Pilot study to assess changes to Hawaii Island forest birds and their habitat - 2015 bird dataset

The Hawaii Forest Bird Survey (HFBS) systematically characterized plant and bird communities across transects spanning all major Hawaiian Islands except O‘ahu. This extensive dataset has now been organized into a database and associated geographic information system (GIS) layers. This baseline provides an opportunity to assess how forest ecosystems and their constituent bird and...

Date published: January 1, 2018

Monitoring Hawaiian Biodiversity: Pilot study to assess changes to Hawaii Island forest birds and their habitat - 1977 vegetation description dataset

The Hawaii Forest Bird Survey (HFBS) systematically characterized plant and bird communities across transects spanning all major Hawaiian Islands except O‘ahu. This extensive dataset has now been organized into a database and associated geographic information system (GIS) layers. This baseline provides an opportunity to assess how forest ecosystems and their constituent bird and...

Date published: January 1, 2018

Distance-power relationship data for Hawaiˊi ˊamakihi (Chlorodrepanis virens) calls in Hakalau Forest NWR, Hawaiˊi, data collected in 2015

Distance-power relationship data we used to create and evaluate a protocol to estimate population density, which can be used to compute abundance of terrestrial sound-producing animals from single automatic acoustic recorders and using an automatic detection algorithm. First posted - January 18, 2017 (available from author) Revised - August 22, 2018 (version 1.1)

Date published: January 1, 2018

Monitoring Hawaiian Biodiversity: Pilot study to assess changes to Hawaii Island forest birds and their habitat - 2015 pig dataset

The Hawaii Forest Bird Survey (HFBS) systematically characterized plant and bird communities across transects spanning all major Hawaiian Islands except O‘ahu. This extensive dataset has now been organized into a database and associated geographic information system (GIS) layers. This baseline provides an opportunity to assess how forest ecosystems and their constituent bird and...

Date published: January 1, 2018

Palila survey locations, effort, and palila detected 2017-2018.

This shapefile is a summary of point count data collected to estimate abundance, showing the distribution of detections in the survey area on Mauna Kea volcano. Data was collected on 13 transects ranging from approximately treeline through the forested area of the mountain. Survey stations were approximately 150 m apart. At each station observers made a six minute count, recording the species...

Date published: January 1, 2018

Midway Atoll inundation area during the 2011 tsunami

This polygon layer delineates the area inundated during the March 11, 2011 tsunami. It is based on a tracking file generated by Pete Leary, of US Fish and Wildlife Service, who traversed the high water mark (debris line) of the tsunmai on March 15, 2011. The coastline at Midway Atoll, which changes from year to year and season to season, was taken from the last available image (Jan. 14, 2010)...

Date published: January 1, 2018

Midway landcover 2010Jan14

This dataset contains a raster-based landcover map for Midway Atoll as of Jan 14, 2010. Landcover is classified into 9 different categories including various types of vegetation, bare ground, beach, and human structures. These categories were created using manual digitizing and unsupervised classification techniques on a DigitalGlobe WorldView-2 satellite image taken January 14, 2010.

Date published: January 1, 2018

Seedling count data in Hawaii Volcanoes National Park in site with rats removed and control site, October 2016 to August 2017

This study aims to evaluate the effect of rat population control on the ability of Hibiscadelphus giffardianus to successfully establish seedlings. We compared H. giffardianus fruiting and recruitment in a stand treated for rats and a neighboring control stand. The study was conducted in two neighboring kīpuka, Kīpuka Puaulu and Kīpuka Kī, which are patches...

Date published: January 1, 2018

Mauna Kea Palila point count data from annual surveys 1998-2018

Ongoing point-count surveys of Mauna Kea volcano on Hawaii were used to estimate abundance of Palila from 1998-2018. This data release includes the point count data used to estimate abundance and a point-process shapefile summarizing observed counts in 2017-2018.

Date published: January 1, 2018

Hawaiian Islands Hawaiian Hoary Bat Genetic Sexing 2009-2018

We tested the utility of a protocol using genetic markers that previously proved successful to identify the sex of Vespertilionid bats on tissues collected from live bats and carcasses of varying age from the Hawaiian hoary bat (Lasiurus cinereus semotus). This molecular method is based on genes unique to X and Y chromosomes in mammals and previously was used successfully on North American...