Folders: ROOT > ScienceBase Catalog > Pacific Island Ecosystems Research Center > PIERC Public Data Releases ( Show direct descendants )
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Climate change in Hawaiʻi is expected to result in increasing temperatures and varying precipitation through the twenty-first century. Already, high elevation areas have experienced rapidly increasing temperatures and there has been an increase in the frequency of drought across the Islands. These climatic changes could have significant impacts on Hawaiʻi’s plants and animals. Changes in temperature and moisture may make current habitat no longer suitable for some species, and could allow invasive species to spread into new areas. Hawaiʻi Volcanoes National Park is home to 23 species of endangered vascular plants and 15 species of endangered trees. Understanding how climate change may impact the park’s plants...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2014,
CASC,
Climate Change,
Completed,
Data Visualization & Tools,
We tracked the movement of 15 ‘Io, or Hawaiian Hawks (Buteo solitarius) from 2019-2021. Individuals were tracked for up to 18 months across a diverse landscape on the eastern side of the Island of Hawai'i. GPS-GSM (global positioning system location with global system of mobile communications) tracking tags were placed on each bird, with locations obtained every 1 hour during diurnal hours, and every 3 hours during nocturnal hours, with two birds having locations obtained every 2 hours as a result of tag power issues. A total of 111,320 locations were obtained.
Categories: Data;
Tags: Hawaiian Hawk,
Io,
Island of Hawaii,
Movement ecology,
USGS Science Data Catalog (SDC),
These data were collected as part of several studies or efforts to remove brown treesnakes (Boiga irregularis) across three sites located in Guam, USA and one site in Cocos Island (Dano), Guam, USA. The various goals of projects were distinct and these data were applied to a more intensive, cross site comparison on the height snakes were detected during visual surveys as a function of their size or body condition.
Categories: Data;
Tags: Arboreal,
Cocos Island, Guam,
Guam,
USGS Science Data Catalog (SDC),
Wildlife Biology,
Point count survey data collected from 1998 through 2018 to estimate palila abundance on Mauna Kea. Point counts were conducted on 32 transects surrounding Mauna Kea volcano on Hawaii Island. Transects extended from roughly treeline through the forested area, with survey stations approximately 150 m apart. Counts were conducted for six minutes, during which the species, distance to, and detection type were recorded for all birds observed. First posted: December 6, 2018 (Version unavailable since it contains sensitive information. All non-sensitive data is contained in version 2.0).
Categories: Data;
Tags: Hawaii County 1,
Mauna Kea,
USGS Science Data Catalog (SDC),
biogeography,
biological population management,
We examined data from multiple studies (1994-2020) conducted across the avian annual cycle, from multiple locations, to evaluate molt patterns and establish criteria for assignment of age and sex based on the WRP (Wolfe-Ryder-Pyle) method, or molt-cycle age classification system designed specifically for tropical species. In addition, we describe the phenologies of molt and breeding and quantify the differences in males and females based on plumage coloration and morphometrics for eight native species. This data release includes two tabular datasets, one containing breeding phenological data and the other containing morphometric data. The phenological data presents information of active breeding condition in birds...
Categories: Data;
Tags: Hawaii forest birds,
Island of Hawaii,
Molt,
USGS Science Data Catalog (SDC),
Wildlife Biology,
Blood and feathers were collected from Hawaii forest birds (Apapane and Hawaii Amakihi) in high elevation forest to assess evidence for altitudinal movement. Feathers, red blood cells and plasma were analyzed for hydrogen, carbon, and nitrogen stable isotope ratios, and these were used to infer changes in elevation and diet over time. For each species, at one of 3 sites, isotope values from one or more tissues and isotopes are listed.
Categories: Data;
Tags: Altitudinal movement,
Ecology,
Hawaii Volcano National Park,
Hawaii forest birds,
Kau Forest,
This data release contains the point-transect distance sampling records of Hawaii Akepa collected at Hakalau Forest National Wildlife Refuge in 2002, including survey point locations, distance to detected birds, number of detected birds, elevation, and alliance-level habitat classification. This data release consists of two tabular datasets, one that contains distances and the other that contains locations, elevation, habitat and counts (described herein).
Categories: Data;
Tags: Density estimation,
Hakalau Forest National Wildlife Refuge,
Hawai`i, USA,
Hawaii Akepa,
Point process modeling,
We designed two new samplers for monitoring airborne particulates, including fungal and fern spores and plant pollen, that rely on natural wind currents (Passive Environmental Sampler) or a battery operated fan (Active Environmental Sampler). Both samplers are modeled after commercial devices such as the Rotorod® and the Burkard samplers, but are more economical and require less maintenance than commercial devices. We compared our two new samplers to Rotorod® samplers using Xyleborus spp. boring dust (frass) known to contain fungi responsible for Rapid ʽŌhiʽa Death. The comparison was done in a large outdoor field cage to determine relative effectiveness of the three samplers for capturing windblown boring dust....
Categories: Data;
Tags: Environmental DNA,
Environmental Sampler,
Frass,
Hawaiii,
Metrosideros polymorpha,
Global downscaled projections are now some of the most widely used climate datasets in the world, however, they are rarely examined for representativeness of local climate or the plausibility of their projected changes. Here we show steps to improve the utility of two such global datasets (CHELSA and WorldClim2) to provide credible climate scenarios for regional climate change impact studies. Our approach is based on three steps: 1) Using a standardized baseline period, comparing available global downscaled projections with regional observation-based datasets and regional downscaled datasets (if available); 2) bias correcting projections using observation-based data; and 3) creating ensembles to make use of the...
This data release includes metadata and tabular data that document estimates of litterfall, koa moth (Scotorythra paludicola) caterpillar frass production, soil nutrients, and foliar nutrients during 2013-2014 at Hakalau Forest National Wildlife Refuge. During this time, there was a massive defoliation event of Acacia koa (koa) trees by the koa moth. We monitored these metrics in 4 sites that varied in forest structure and composition at Hakalau. We used litter traps to monitor koa litter fall over time and foliar %N to estimate N inputs from litter. We used caterpillar counts, koa canopy estimates, frass production rates, and frass %N to estimate N inputs from frass on the landscape. We used resin bags under koa...
Categories: Data;
Tags: Hakalau Forest National Wildlife Refuge,
Hawaii Island,
biota,
defoliation,
foliar nutrients,
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 plant populations have changed over time. As part of the HaBiTATS (Hawaiian Biodiversity Trends Across Time and Space) project, a select area on Hawai‘i Island was surveyed in 2015 with the objective of demonstrating the potential of using the HFBS methodology to reassess the status of bird and plant communities across multiple geographic...
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.
This folder contains datasets generated during the Pohakuloa Training Area vegetation surveys of 2001. Each dataset is accompanied by an XML metadata file.
In this project, we assessed the potential for twelve coastal wetland sites on the island of Molokaʻi, Hawaiʻi, to provide socio-cultural resources and habitat for flora and fauna following restoration. In April 2022, a rapid field assessment of hydrology, soils, and vegetation was carried out at each of the wetland sites. In this dataset, all the hydrologic data collected during the rapid field assessment are provided.
In this project, we assessed the potential for twelve coastal wetland sites on the island of Molokaʻi, Hawaiʻi, to provide socio-cultural resources and habitat for flora and fauna following restoration. In April 2022, a rapid field assessment of hydrology, soils, and vegetation was carried out at each of the wetland sites. In this data release, all the soils data collected during the rapid field assessment are provided.
Surveys for Papilio godeffroyi specimens were conducted on 117 individually marked host trees (Micromelum minutum) in eight forest stands on Tutuila Island, American Samoa, at approximately monthly intervals during 2013-2014. The eight stands were mostly in or adjacent to the National Park of American Samoa (NPSA), but one stand was sampled near the western tip of Tutuila, outside NPSA. Eggs and eggshells were collected during each survey and processed in the laboratory at American Samoa Community College. The diameters of intact eggs or mostly intact eggshells were measured to address questions about how propagule size, a potentially important indicator of fitness, might be related to hatching success,developmental...
Collections of immature Papilio godeffroyi were conducted on 117 individually marked host trees (Micromelum minutum) in eight forest stands on Tutuila Island, American Samoa, at approximately monthly intervals during 2013-2014. Specimens, including eggs, eggshells, larvae, and pupae, were taken to the laboratory at American Samoa Community College for processing and rearing. Intervals between stages (e.g., larva to pupae) were averaged to provide developmental times.
Categories: Data;
Tags: American Samoa,
National Park of American Samoa,
Tutuila,
developmental period,
developmental stage,
Habitat use, diet, prey availability and foraging ecology of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus, Vespertilionidae), was examined in the east Maui region inclusive of the Waihou Mitigation Area, Pu‘u Makua Restoration Area and the wind power facility operated by Auwahi Wind Energy, LLC. Research funding was provided to conduct the bat ecology study by Auwahi Wind Energy, LLC, in order to fulfill requirements for mitigating bat fatalities under its approved incidental take permit. This study included the first genetic analysis of Hawaiian hoary bat guano items, and broadly confirms the major arthropod orders (Coleoptera, Lepidoptera, Diptera, Hemiptera, and Blattodea) found in previous microscopy-based...
This data set provides the locations of the ground-based vegetation plots that have been used to assess the status of the ohia forests on the eastern side of the island of Hawaii following a landscape-level canopy dieback event that occurred in this area in the 1970s. These plots have been resurveyed several times and the results summarized by Boehmer et al. 2013.
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