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Location Folder Show Tree ROOT _ScienceBase Catalog __Pacific Island Ecosystems Research Center ___PIERC Public Data Releases Alakai Plateau, Kauai, and Volcano Village,Hawaii biopesticides and traps for the control of Culex quinquefasciatus, 2017-2018 Alamagan, Commonwealth of the Northern Mariana Islands, Nightingale Reed-warbler point transect survey data, 2010 Assessing the Potential Effects of Climate Change on Vegetation in Hawaiʻi Volcanoes National Park Avian diet and vegetation data for Hakalau Forest, Hawaii, 2012-2016 Channel Island Grazer Removal Data 2004-2016 More... Filters Date Range Past year (50) Past month (1) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (1) Raster (1) Types Citation (2) Downloadable (2) Map Service (2) ArcGIS REST Map Service (1) ArcGIS Service Definition (1) GeoTIFF (1) Raster (1) Contacts Pacific Island Ecosystems Research Center U.S. Geological Survey - ScienceBase U.S. Geological Survey Eben Paxton Stephanie G Yelenik More... Categories Data Release - Revised (4) Tag Types Theme (49) Place (50) USGS Scientific Topic Keyword (43) Harvest Set (50) Tag Schemes None (44) Common geographic areas (24) ISO 19115 Topic Category (42) USGS Thesaurus (8) USGS (2) FGDC (2) occupancy (1) More... View Results as: JSON ATOM CSV Browse Folder

Data on dietary preference by brown treesnakes on Guam These data address experimental evaluations of dietary preference by captive brown treesnakes on Guam. Snakes were collected from the wild in areas with birds present and in areas without birds present 2018–2019. Snakes were then run through preference trials during which they were offered first live lures (mouse and finch) in snake traps on opposite sides of the arena. On the second night, snakes were offered dead carrion (baits) of each prey type (mouse, chicken chick) equal to 30% of their mass. Choices were monitored overnight using game cameras and then transcribed the following day. Individuals were classified as BIRD or NOBIRD snakes based on whether they had birds in their gut contents at the time of capture.... Categories: Data; Tags: Ecology, Guam, Guam National Wildlife Refuge, Preference, USGS Science Data Catalog (SDC), All tags... environment, Fewer tags Hawaii Volcanoes National Park Plant Trait, Percent Cover, and Environmental Data 2014 This data release includes data and metadata on 1) the coverage and composition of plants 2) species specific plant traits 3) sampling locations and 4) environmental data. All sites were within Hawaii Volcanoes National Park on Hawaii Island. Plant cover data were obtained from National Park Service Inventory and Monitoring Program. Plant trait data was collected for these plots in 2014. This study aims to evaluate how traits of native and exotic plant species change along environmental gradients and what this suggests for plant competition and invasion. Categories: Data; Tags: Ecology, Hawaii, Hawaii Volcanoes National Park, USGS Science Data Catalog (SDC), botany, All tags... bryophyte, ecology, forest resources, forest restoration, invasive species, plant ecology, seedling recruitment, tropical forest dynamics, Fewer tags Hawaii Island locations of reintroduced Alala from automated radio telemetry tracking system, 2017 cohort Alala, or Hawaiian Crow (Corvus hawaiiensis), were extinct in the wild since the early 2000s. The first effort to reintroduce captive bred Alala back into the wild was conducted at Puu Makaala Natural Area Reserve on Hawaii Island. The 2017 release cohort were released in two stages and were the only Alala in the wild. Using automated radio telemetry tracking towers (n=4) that were distributed around the release area, we tracked the birds from September 26, 2017, to May 19, 2018, to document early exploratory movement of these birds in the wild. Categories: Data; Tags: Hawaii Island, Puu Makaala Natural Area Reserve, USGS Science Data Catalog (SDC), Wildlife Biology, biota, All tags... birds, reintroduction, Fewer tags Oahu multi-state occupancy models of foraging habitat use by Hawaiian hoary bats 2017 This data release consists of a single table that includes sample site geographic locations, insect prey abundance, and bat activity and behavior metrics. The dataset was used to develop multi-state occupancy models of foraging habitat use by Hawaiian hoary bats (Lasiurus cinereus semotus). Categories: Data; Tags: Chiroptera, Ecology, Hawaii, Oahu, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, abundance, biota, conservation, habitat suitability, multi-state occupancy model, Fewer tags Maui Island Modeling Scenarios for the Management of Axis Deer 1959-2014 Our objectives were to examine the population history of axis deer on Maui, estimate observed population growth, and then use species-specific demographic parameters in a VORTEX population viability analysis to examine removal scenarios that would most effectively reduce the population. Only nine deer were introduced in 1959, but recent estimates of >10,000 deer suggest population growth rates (r) ranging between 0.147 and 0.160 although at least 11,200 have been removed by hunters and resource managers. In the VORTEX simulations, we evaluated an initial population size of 6,000 females and 4,000 males, reflecting the probable 3F:2M sex ratio on Maui because of male biased hunting. Scenarios were modeled over a... Categories: Data; Tags: Axis deer ( Axis axis), Ecology, Hawaii, Invasive species, Maui Island, All tags... Population viability analysis, USGS Science Data Catalog (SDC), Ungulate management, Wildlife Biology, biota, Fewer tags 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). Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Ecology, Hawaii, Kahoolawe, Kauai, Lanai, All tags... Main Hawaiian Islands, Maui, Molokai, Oahu, USGS Science Data Catalog (SDC), Wildlife Biology, aerial imagery, coastal ecosystems, habitats, plant communities, species richness, status, vegetation, Fewer tags Hawaiian forest bird avian malaria prevalence 2018-2021 Native and introduced forest birds were captured and then released across the Hawaiian Islands to acquire a blood sample for obtaining DNA and test for exposure to avian malaria (Plasmodium relictum). A total of 2,945 samples were collected and analyzed for avian malaria prevalence from 39 species captured at 66 sites from Kauai, Oahu, Molokai, Maui, and Hawaii islands. Categories: Data; Tags: Hawai'i Island, Hawaiian forest bird, Kaua'i, Maui, Molokai, All tags... O'ahu, Plasmodium relictum, USGS Science Data Catalog (SDC), Wildlife Biology, Wildlife Disease, avian malaria, biota, disease, Fewer tags Guam, USGS Closed Population (NWFN), an experimental eradication of brown treesnakes in a 5-ha study site, 2016 - 2023 These data represent a case study on managing the invasive brown treesnake (Boiga irregularis) on Guam within a 5 ha snake enclosure located on Northern Guam. The site code (NWFN or North West Field North) reflects a location on Andersen Air Force Base, Northern Guam, which has been a study site for close to two decades. The experimental process followed an adaptive resource management process to develop an integrated pest management strategy for either eradication or validating whether extant species (rodents, lizards, and birds) would respond to population suppression over a 6 year removal effort. The program included an evaluation of the Aerial Delivery System, as well as a comparison of bait species (quail,... Categories: Data; Tags: Adaptive resource management, Aerial Delivery System, Eradication, Guam, Hand capture, All tags... Live trapping, Tool dependent response, Toxic baiting, USGS Science Data Catalog (SDC), Wildlife Biology, planningCadastre, Fewer tags Guam, Post-storm Mariana swiftlet colony size and nest counts, 2023 The Yǻyaguak (Mariana Swiftlet; Aerodramus bartschi) is an endangered cave-roosting species native to Guam and southern Mariana Islands, Micronesia. On May 24-25, 2023, Guam was hit by the category-4 Typhoon Mawar, which brought wide-spread destruction to the island. Approximately 6 weeks prior to the typhoon in April 2023 we conducted surveys of the three known colonies of Yǻyaguak at Mahlac, Maemong, and Fachi caves. This April 2023 pre-Mawar survey provided a baseline population estimate prior to Typhoon Mawar’s landfall. In July 2023, we re-surveyed the caves to estimate colony size and assess whether the cave colonies experienced significant declines in the immediate aftermath of the storm. In November 2023,... Categories: Data; Tags: Guam, Mariana swiftlet, Talofofo, Typhoon Mawar, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, farming, yǻyaguak, Fewer tags O'ahu waterbird movement from 2016 to 2018 This data release includes data and metadata containing estimated and predicted locations of radio telemetered Hawaiian waterbirds. Radio telemetry data was collected using an automated radio telemetry network from March 2016 to August 2018 on O'ahu, Hawaii, for three species: ʻAlae ʻula (Hawaiian Gallinule; Gallinula galeata sandvicensis), ʻAlae keʻokeʻo (Hawaiian Coot; Fulica alai), and Aeʻo (Hawaiian Stilt; Himantopus mexicanus knudseni). Data were used in the analysis for the manuscript entitled " Hawaiian waterbird movement across a developed landscape." Categories: Data; Tags: Hawaii, Hawaiian waterbirds, Oahu Island, Pearl Harbor, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, automatic radio telemetry, biota, movement patterns, Fewer tags Hakalau Forest National Wildlife Refuge Hawaii Akepa point-transect surveys, 1987-2017 This dataset contains the point-transect distance sampling records of Hawaii Akepa collected at Hakalau Forest National Wildlife Refuge between 1987 and 2017. These data include the survey point locations, observer details, time of day, and sampling conditions during the counts. In addition, the data include the elevation and alliance level habitat classification at the survey points. Provided here in the data release is the single tabular dataset containing the project’s bird and habitat data. Categories: Data; Tags: Density estimation, Ecology, Hakalau Forest National Wildlife Refuge, Hawai`i, USA, Hawaii Akepa, All tags... Point-transect distance sampling, Spatio-temporal smoother, USGS Science Data Catalog (SDC), Variance propagation, Wildlife Biology, biota, Fewer tags Florida invasive Leiocephalus carinatus ecological niche model, thermal environment, and thermal tolerance, 1991-2020 The publication "Invaders from Islands: Thermal Matching, Potential, or Plasticity?" is comprised of data derived from multiple datasets. These datasets include climatic and temperature variables used in ecological niche models for predicting suitable habitat for Leiocephalus carinatus in its invaded and native ranges. Also included are thermal tolerance measurements assessed in March 2020 for Leiocephalus carinatus from Key Largo and Cocoa Beach, Florida, USA. Additionally, we include weatherstation data for local minimum and maximum ambient temperatures for the experimentally assessed populations at short (months) and long (decades) timescales. The dataset "curly_thermal_limits" describes thermal tolerance data... Categories: Data; Tags: Bahamas, the, Cuba, Ecology, Florida, USGS Science Data Catalog (SDC), All tags... United States, ecological niche model, ecology, farming, geoscientificInformation, invasive species, physiology, species distribution, Fewer tags Midway Atoll survey of avian malaria prevalence in passerines 2023 Non-native passerines, common canary (Serinus canaria; n=24) and the common myna (Acridotheres tristis; n=19), were captured by US Fish and Wildlife Service Biologists on Sand Island, Midway Atoll, and had a blood sample taken to test for avian malaria (Plasmodium relictum) infection. Blood samples were analyzed for the presence of avian malaria DNA using a Realtime PCR (qPCR) assay. No evidence of avian malaria was found in any of the bird samples. Categories: Data; Tags: Midway Atoll, Northwestern Hawaiian Islands, Sand Island, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... Wildlife Disease, avian malaria, biota, Fewer tags Hawaiian Islands habitat suitability models for highly invasive plants based on global and regional data for baseline climate scenario (1990-2009) We created a comprehensive estimate of potential distribution for a subset of 17 ecosystem modifying invasive plants (EMIPs) in Hawaiʻi. This work uses methods that integrate a wide set of data sources including agency and citizen science data, but perhaps more importantly, the integration of regional and global distribution information for these species. We built three sets of ensemble species distribution models (SDMs) for each species. We first built global and regional ensemble distribution models for each species. Then, to create a comprehensive estimate of potential invasive species distribution for our study species in Hawaiʻi, we built nested regional models that integrate our global and regional ensemble... Categories: Data; Tags: Baseline Climate, Ecology, Ensemble Model Projections, Hawai’i, Invasive Plants, All tags... Main Hawaiian Islands, Nested Models, Species Distribution Models, USGS Science Data Catalog (SDC), biota, Fewer tags Hawaiian Islands Hawaiian Hoary Bat Genetic Sexing 2009-2020 (ver. 7.0, June 2022) 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 semotus). This molecular method is based on genes unique to X and Y chromosomes in mammals and previously was used successfully on North American hoary bats (L. cinereus). Using genotyping, we determined the sex of 123 of 125 Hawaiian hoary bat tissue samples from carcasses. This dataset includes all 73 samples from the original data release, plus 58 additional samples. NOTE: While previous versions are available from the author, all the records in previous versions can be found... Categories: Data, Data Release - Revised; Tags: Hawaii, Hawaiian Islands, Hawaiian hoary bat, Maui, Oahu, All tags... USGS Science Data Catalog (SDC), biota, carcass, genetics, sex determination, Fewer tags Hawaii Island bird activity from 2014 through 2019 We used an automated radio telemetry network to document the activity of radio telemetered Hawaiian forest birds in two study sites, one a continuous forest and the other a fragmented forest. Four bird species were studied: the nectarivorous ʻiʻiwi (Drepanis coccinea) and ʻapapane (Himatione sanguinea), the frugivorous ʻōmaʻo (Myadestes obscurus), and the generalist Hawaiʻi ʻamakihi (Chlorodrepani virens; hereafter ʻamakihi). In the continuous forest we also tracked two non-native species: the frugivorous red-billed leiothrix (Leiothrix lutea), and the generalist warbling white-eye (Zosterops japonicus). Using sequential changes in radio signal strength we were able to estimate when birds were moving or resting.... Categories: Data; Tags: Ecology, Hakalau Forest National Wildlife Refuge, Hawaii Island, Hawaii forest birds, USGS Science Data Catalog (SDC), All tags... Upper Waiakea Forest Reserve, Wildlife Biology, biota, movement patterns, radio telemetry, Fewer tags Hawaii Volcanoes National Park, Puhimau Geothermal Area vegetation and abiotic data, 2011-2021 This data release includes metadata and tabular data that documents survival of endangered Portulaca sclerocarpa, percent cover of vegetation surrounding Portulaca sclerocarpa, as well as soil depth and soil temperature. All data were taken between 2011-2021 in the Puhimau Geothermal Area in Hawaiʻi Volcanoes National Park. Categories: Data; Tags: Ecosystem restoration, Endangered species management, Geothermal activity, Hawaii Island, Hawaii Volcanoes National Park, All tags... Invasive grasses, Plant competition, Soil temperature, USGS Science Data Catalog (SDC), biota, Fewer tags Hawai‘i Island locations of ‘Apapane and ‘I‘iwi from automated radio telemetry tracking system 2014 to 2016 We used an automated radio telemetry network to track the movement of two nectivorous Hawaiian honeycreepers, the ʻapapane (Himatione sanguinea) and ʻiʻiwi (Drepanis coccinea), collecting high temporal and spatial resolution data across the annual cycle. We identify movement syndromes using a multivariate analysis of multiple movement metrics and assessed seasonal changes in movement behavior. Birds made long-distance flights, including multi-day forays outside the tracking array, but exhibited a high degree of fidelity to a core use area, even in the non-breeding period. Both species visited forests at elevations where avian malaria potentially occurs, although overall exhibited very little seasonal change in elevation... Categories: Data; Tags: Hakalau Forest National Wildlife Refuge, Hawaii Island, USGS Science Data Catalog (SDC), Wildlife Biology, biota, All tags... birds, movement ecology, telemetry, Fewer tags Haleakala National Park bird survey data 1998-2008 Eight-minute point-transect distance bird surveys were collected in and around Haleakala National Park from 1993-2008. This dataset contains the location, species, and distance to detected birds, as well as identifying initials to distinguish among observers. Categories: Data; Tags: Ecology, Haleakala National Park, Haleakala volcano, Maui, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biogeography, biological population management, community ecology, wildlife biology, wildlife population management, Fewer tags Puuhonua o Honaunau and Kaloko-Honokohau National Historical Parks, carbon dioxide treatment and qPCR eDNA assays for eradicating and monitoring invasive fish in anchialine pools, 2019-2022 (ver. 2.0, July 2023) This data release includes metadata and tabular data that documents lab and field trials testing the efficacy of carbon dioxide (CO2) gas diffused into water to manage invasive fish in anchialine pools. The data release also includes information documenting sensitivity, specificity, and accuracy of quantitative polymerase chain reaction (qPCR) assays to detect environmental DNA (eDNA) from tilapia (Oreochromis mosambicus), western mosquitofish (Gambusia affinis) and guppies (Poecilia reticulata). In total there are 11 datasets, 9 describing lab trials and 2 describing field trials. Lab data include 1) initial water conditions during pilot study, 2) behavioral response of fish to CO2 during pilot study, 3) survival... Categories: Data, Data Release - Revised; Tags: Hawaii, Hawaii Island, Koloko-Honokohau National Historical Park, Puuhonua o Honaunau National Historical Park, USGS Science Data Catalog (SDC), All tags... anchialine pool, biota, carbon dioxide, eDNA, invasive fish, invasive species management, qPCR assays, Fewer tags 1 2 3 »