Pacific Island Ecosystems Research Center

Data and Tools

Filter Total Items: 138
Date published: March 23, 2018

Sampling locations for occurrence of natural nest cavities in montane ohia trees in Hawaii Volcanoes National Park

We quantified the availability of breeding habitat of the endangered Hawaii Akepa (Loxops coccineus). The species is thought to nest excusively in natural cavities within mature ohia (Metrosideros polymorpha) trees but birds commonly occur in short stature trees that presumably do not have any natural cavities because of their polyploidal (many-branched) structure. To test this hypoth

Date published: March 23, 2018

Occurrence of natural nest cavities in montane ohia trees in Hawaii Volcanoes National Park

We quantified the availability of breeding habitat of the endangered Hawaiian Akepa (Loxops coccineus). The species is thought to nest excusively in natural cavities within mature ohia (Metrosideros polymorpha) trees but birds commonly occur in short stature trees that presumably do not have any natural cavities because of their polyploidal (many-branched) structure. To test this hypo

Date published: January 19, 2018

Percent cover of plants on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016

This data contains the percent cover of all species found along transect on the south facing slopes of Santa Cruz Island, CA. It was used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These sites were sampled in 2004 and 2016 to gain a longer term view on native shrub reestablishment into exotic

Date published: January 19, 2018

Channel Island Grazer Removal Data 2004-2016

This data includes data and metadata of (1) the percent cover of all species found along transects on the south facing slopes of Santa Cruz Island, CA (2) the height of all shrub individuals on transects on the south facing slopes of Santa Cruz Island, CA and (3) location data of on the south facing slopes of Santa Cruz Island, CA. Data were used in the analysis for the Manuspc

Date published: January 19, 2018

Location of transects on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016

This data contains the location of transects on the south facing slopes of Santa Cruz Island, CA that were used to collect percent cover and shrub abundance data. It was used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These same transects were sampled in 2004 and 2016 to gain a longer term vi

Date published: January 19, 2018

Height of shrubs on south facing slopes of Santa Cruz Island, CA, in 2004 and 2016

This data contains the height of shrubs found along transects on the south facing slopes of Santa Cruz Island, CA. It was used in the analysis for the Manuspcript "Long-term impacts of exotic grazer removal on native shrub recovery, Santa Cruz Island, California". These sites were sampled in 2004 and 2016 to gain a longer term view on native shrub reestablishment into exotic grasslands

Date published: January 1, 2018

Hawaiian Islands Hawaiian Hoary Bat Genetic Sexing 2009-2016

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...

Date published: October 24, 2017

Hawaii Land Cover and Habitat Status

These two raster data layers depict the land cover and degree of human disturbance to plant communities on the seven main Hawaiian Islands, and were developed as part of a comprehensive USGS assessment of carbon sequestration potential by natural ecosystems in the State of Hawaii.

Date published: October 24, 2017

Kanakaleonui Bird Corridor Montane Plants 2016

The datasets used in the the research project entitled, "Facilitating Adaptation in Montane Plants to Changing Precipitation along an Elevation Gradient," are presented. Report available.

Date published: October 24, 2017

Hawaiian Islands Coastal Vegetation Survey 2013-2015

 

This dataset provides information on the current status and various other habitat and descriptive attributes of the native coastal vegetation for seven of the main Hawaiian Islands (i.e., does not include Ni`ihau). Report available.

Date published: June 7, 2017

Hawaiian Islands Coastal Vegetation Survey 2013-2015

This dataset provides information on the current status and various other habitat and descriptive attributes of the native coastal vegetation for seven of the main Hawaiian Islands (i.e., does not include Ni`ihau).

Date published: May 10, 2017

Hawai‘i Volcanoes National Park Landbird Surveys 2015-2016

Hawaiʻi Volcanoes National Park was surveyed for landbirds and landbird habitat from February through April 2015 and February through April 2016. This information provides the second datum in the time-series of Pacific Island Network (PACN) monitoring for long-term trends in landbird distribution, density, and abundance (initial surveys conducted in 2010)....