Folders: ROOT > ScienceBase Catalog > Pacific Island Ecosystems Research Center > PIERC Public Data Releases ( Show all descendants )
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This dataset provides morphological and blood-derived physiological data from invasive Burmese pythons (Python bivittatus) captured in Florida. Data were collected on pythons at capture in the field and in varying lengths of time in captivity. Samples were collected immediately at handling (baseline) and 1 hour post-restraint. Physiological data include circulating corticosterone hormone levels, functional immune assays, and blood cell counts. Also included is R code ( Python_captivity_capture_code.R ) to replicate analyses used in the publication "Scales of Stress: Effects of capture and captivity in an invasive snake". For reference, the following data files are relevant to each section of the corresponding manuscript:...
Categories: Data;
Tags: Florida,
USGS Science Data Catalog (SDC),
United States,
Wildlife Biology,
biota,
Monitoring demographic response over time is valuable for understanding population dynamics of endangered species. We quantified the variation in survival patterns for three small isolated island populations of endangered Laysan ducks (Anas laysanensis; also called Laysan teal) in the Hawaiian Archipelago using data from individually marked birds. Using the median or maximum resight intervals of individually marked birds and carcass recovery dates the survival of ducks at Laysan Island, Midway Atoll, and Kure Atoll was estimated. This dataset includes demographic information for each bird released, mortality information, and data used to calculate population survival.
Point transect distance sampling data were collected during the 2010 surveys of Alamagan, Commonwealth of the Northern Mariana Islands (CNMI). Data were collected at points along transects where trained observers recorded the detection type (heard, seen, or heard then seen) and horizontal distance (exact distance in m) from the station center point to individual birds detected during an 8-min count. To increase the numbers of detections, survey data from 40 detections from the CNMI Division of Fish and Wildlife (DFW; 2000) surveys of Alamagan, and 46 detections from Saipan surveys described in Camp et al. (2009) were added to this dataset. The count length of the DFW surveys was only 5 minutes; therefore, we included...
This data release includes metadata and tabular data that documents counts of shrimp and measurements of field variables aimed to identify factors that affect the distribution and abundance of the uncommon anchialine pool shrimp Metabetaeus lohena at Kaloko-Honokōhau National Historical Park during 2017. The data set documents biological, chemical and physical attributes within 173 anchialine pools surveyed during the study.
Categories: Data;
Tags: Aquatic Biology,
Ecology,
Island of Hawai‘i,
Kaloko-Honokohau National Historical Park,
USGS Science Data Catalog (SDC),
This dataset provides high-resolution, species-specific land cover maps for the Hawaiian island of Lāna'i based on 2020 WorldView-2 satellite imagery. Machine learning models were trained on extensive ground control polygons and points. The land cover maps capture the distribution and diversity of vegetation with high accuracy to support conservation planning and monitoring. This data release consists of two child items, one containing the field and expert collected ground control data used to train our models, and another consisting of resulting land cover maps for the island of Lāna‘i. The research effort that generated these input data, and products are carefully described in the associated manuscript Berio Fortini...
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 hypothesis we searched for cavities in trees where akepa forage and we measured diameter of each stem of each tree examined. The habitat is in montane areas of Hawaii Volcanoes National Park on Mauna Loa volcano.We surveyed 57 plots, 49 in montane woodland and 8 in closed-canopy forest. Six tree cavities were detected in the 214 sampled trees:...
This data release includes metadata and tabular data that document the response of koa (Acacia koa) trees to defoliation by the koa moth (Scotorythra paludicola) during 2013-2014 at Hakalau Forest National Wildlife Refuge. Data were collected on 55 plots at 4 sites representing 2 habitat types with either high or low koa densities. Ohia (Metrosideros polymorpha) trees dominated habitats with low koa density. Data sets document (1) locations and habitat type of forest plots where koa trees were evaluated, (2) density and size of koa trees within plots, extent of koa tree defoliation, rate of koa tree foliage regrowth (refoliation), and koa tree mortality, and (3) counts and relative size of ohia trees for evaluating...
This data release includes metadata and tabular data that documents growth and root nodulation of Acacia koa and Sophora chrysophylla in different soil types. Soils contained innoculum from conspecific versus heterospecific plants and were taken from areas that had burned in the 2018 Keauhou fire versus areas that had not burned . All plants were grown and data were taken in 2019 in a shadehouse structure in Hawaiʻi Volcanoes National Park.
Categories: Data;
Tags: Ecology,
Hawaii Island,
Hawaii Volcanoes National Park,
USGS Science Data Catalog (SDC),
biota,
This project encompasses a range of plant species range models developed in various stages over many years. A more complete description will be added once more items are added to this folder.
This data release includes metadata and tabular data that document Acacia koa density, basal area, and grass cover before and after the 2018 Keauhou Ranch Fire in Hawaii Volcanoes National Park. Specifically, we asked three questions: 1) At what level of precision can pre-fire grass cover be accurately estimated from oblique aerial photos? 2) How are post-fire Acacia koa regeneration densities affected by fire severity? 3) How are post-fire A. koa regeneration densities affected by pre-fire grass cover and its interaction with fire severity? We collected burn severity and post-fire regeneration data from 30 transects stratified across mid-elevation woodland, montane woodland, and montane shrubland. We evaluated...
This data release includes data and metadata on seedling counts and substrate cover in forest plots in Hakalau Forest National Wildlife Refuge on Hawaiʻi Island. Broadly, this study asks how seedlings densities relate to their microsites in terms of grass cover and nurse log and moss presence.
Categories: Data;
Tags: Ecology,
Hakalau Forest National Wildlife Refuge,
Hawaii,
USGS Science Data Catalog (SDC),
avian diet,
This data release includes data and metadata containing estimated and predicted locations of radio telemetered Hawaiian forest birds. Radio telemetry data was collected using an automated radio telemetry network from 2014 to 2019 from birds in two study sites, one a continuous forest and the other a fragmented forest. Four bird species that varied in age and sex were studied: the nectarivorous ʻiʻiwi (Drepanis coccinea) and ʻapapane (Himatione sanguinea), the frugivorous ʻōmaʻo (Myadestes obscurus), and the generalist Hawaiʻi ʻamakihi (Chlorodrepani virens). Data were used in the analysis for the manuscript entitled "Landscape fragmentation alters movement behavior and space use of Hawaiian forest birds."
Acoustic sampling for presence of the endangered Hawaiian hoary bat (Lasiurus semotus, also known as Aeorestes semotus) was conducted at 17 stations across four Marine Corps Base Hawaii (MCBH) properties on O‘ahu Island, Hawai‘i. Bats were confirmed as present at all properties; MCBH Kāneʻohe Bay on Mōkapu Peninsula, Marine Corps Training Area Bellows (MCTAB) in Waimanalo, Camp H.M. Smith in Halawa Heights, and Pu'uloa Range Training Facility (RTF) on the 'Ewa coastal plain. Hawaiian hoary bats were recorded in airspace at all four properties during important periods of Hawaiian hoary bat life history, including periods of pregnancy, lactation, and pup fledging; however, overall presence was low. Foraging activity...
Categories: Data;
Tags: Hawaiian hoary bat,
O‘ahu,
USGS Science Data Catalog (SDC),
Wildlife Biology,
acoustic monitoring,
Hawaii forest birds nesting in Hakalau Forest National Wildlife Refuge were exposed to models of predators near their nests to measure behavioral responses. Responses to potential nest predators included vocalization rate, movement behavior, and nestling feeding. Predators were inert stick, introduced but abundant predator, a rat, and a novel predator, a snake, that does not occur on Hawaii.
Lotek Pinpoint Global Positioning System (GPS) Argos Satellite tracking tags were placed on 4 Hawaiian Stilts on Oahu island in 2017. The birds were tracked from 19 July 2017 to 12 February 2018, with locations taken daily every 1.5 hours from 0400 to 2000 Hawaii Standard Time. For each location, a description of the general habitat as 1) Wetland, 2) undeveloped field, 3) sport field, and 4) developed area was determined through a visual evaluation of the location using WorldView-2 satellite imagery.
Categories: Data;
Tags: Ecology,
GPS satellite tracking,
Himantopus mexicanus knudseni,
Oahu Hawaii,
USGS Science Data Catalog (SDC),
The arrival of the coconut rhinoceros beetle (CRB, Oryctes rhinoceros) in Hawaii poses serious threats to endemic palm species, crop species and iconic palm trees across the archipelago. As this invasive is found on the island of Oahu primarily at lower elevations, there are concerns about the species spreading towards high value native habitats at higher elevations and/or to other islands across the state. This dataset simply describes the suitability of the Hawaiian landscape to CRB spread based on climatic conditions (using mean annual temperature and precipitation) of global and local species occurrences. This CRB habitat suitability was calculated using a simple bioclim approach where suitability values reflect...
Waihou Mitigation Area, Maui Island, bat acoustic activity, diet and prey availability, 2015 to 2018
Habitat use, diet, prey availability and foraging ecology of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus, Vespertilionidae) were 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. The study was conducted to inform the mitigation and management requirements of Auwahi Wind Energy, and fulfill requirements for mitigating bat fatalities under its approved incidental take permit. Acoustic monitoring over the three-year period demonstrated that bats are present and actively feed year-round at the Waihou Mitigation Area. This study included the first genetic analysis of Hawaiian hoary bat...
This data release includes metadata and tabular data documenting the reproductive demography of the Samoan swallowtail butterfly (Papilio godeffroyi), including rates of parasitism by two species of Ooencyrtus wasp. Data was collected at approximately monthly surveys of marked host trees (Micromelum minutum) at eight forest stands, mostly in or adjacent to the National Park of American Samoa (NPSA), Tutuila Island, during 2013-2014. One stand was located near the western tip of Tutuila, outside NPSA. Data sets document: (1) sampling effort for swallowtail specimens during monthly surveys of host trees; (2) final life cycle stage achieved by swallowtail specimens brought into the laboratory for rearing or postmortem...
This data included data and metadata on 1) the number of open fruit of Hibiscidelphus giffardianus, 2) Mark recapture data for rats, 3) location data for rat traps within plots and 4) seedling count data for Hibiscidelphus giffardianus. All sites were within Hawaii Volcanoes National Park. 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 of well-developed forest surrounded by more recent lava flows. These kīpuka...
This data release includes data and metadata containing (1) study site locations and elevation where bolts (tree stem sections) infected with Ceratocystis lukuohia and/or C. huliohia were collected on Hawai'i Island, (2) the ambrosia beetle (Coleoptera: Scolytinae) species that were reared from bolts, (3) Ceratocystis spp. viability results from culturing tests of the beetles' frass, (4) frass production estimates from three ambrosia beetle species, and (5) quantitative Polymerase Chain Reaction (qPCR) DNA results of viability subcultures. Data were used in the analysis for the manuscript "Ambrosia beetle communities and frass production in ʻōhiʻa (Metrosideros polymorpha) infected with Ceratocystis fungi responsible...
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