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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 (114) Past month (2) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (1) Raster (1) Types Map Service (4) Citation (2) Downloadable (2) OGC WFS Layer (2) OGC WMS Layer (2) More... Contacts Pacific Island Ecosystems Research Center U.S. Geological Survey - ScienceBase U.S. Geological Survey Eben Paxton Stephanie G Yelenik More... Categories Data (50) Data Release - Revised (5) Tag Types Theme (113) Place (114) USGS Scientific Topic Keyword (99) Harvest Set (114) Tag Schemes None (103) Common geographic areas (54) ISO 19115 Topic Category (89) USGS Thesaurus (27) USGS (7) Common Geographic Areas (1) FGDC (2) 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, Hawaiian hoary bat acoustic data pre- and post-koa moth outbreak, 2007-2013 We examined Hawaiian hoary bat (Lasiurus semotus) presence and foraging activity at Hakalau Forest National Wildlife Refuge and Lāupahoehoe Forest Reserve on Hawai‘i Island during the 2013 koa moth (Geometridea: Scotorythra paludicola) outbreak. Hawaiian hoary bat echolocation vocalizations were recorded at seven acoustic stations between 1069 and 1200 m above sea level that operated nightly from May 2013 through September 2013. We compared these data to data collected at similar locations during 2007-2011 to determine the response of bats to increased moth abundance during 2013. In this abstract we refer to the Hawaiian hoary bat as a full species, Lasiurus semotus, following updated taxonomy for Hawaiian hoary... Tags: Acoustic recording, Echolocation, Ecology, Hawaii Island, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biota, Fewer tags Hakalau Forest NWR seed rain, seedling, and plant data for 2017-2019 This data release includes data and metadata on tree and shrub basal area as well as bird-mediated and passive seed rain for sites selected to have a range of understory cover under canopy trees (Metrosideros polymorpha and Acacia koa). It also includes seedling germination and survival data for a large-scale seed addition and grass removal experiment that varied both seed rain and grass cover. All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. Broadly, this study asks what thresholds of seed rain and native and exotic plant cover are needed for passive forest regeneration. Tags: Ecology, Hakalau Forest National Wildlife Refuge, Hawaii, USGS Science Data Catalog (SDC), avian diet, All tags... botany, ecology, exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, Fewer tags Hawaiʻi Island ʻōpeʻapeʻa (Hawaiian hoary bat) roost data, 2018–2021 Hawaiian hoary bats ('ōpe'ape'a; Lasiurus semotus) were captured and tracked back to roosting locations on Hawaiʻi Island from 2018-2021. We examined resource selection at multiple spatial scales - perch location within a roost tree, roost tree, and forest stand. We used a discrete choice modeling approach to investigate roost selection and describe attributes of day-roost trees including those used as maternity roosts. ‘Ōpe‘ape‘a were found roosting in a variety of tree species and in an assortment of habitat types including native and non-native habitats. This data release consists of six tabular datasets: (1) Hawaiʻi Island ʻōpeʻapeʻa roost perch metrics, 2019–2021, (2) Hawai‘i Island ʻōpeʻapeʻa roost tree metrics,... Tags: Hawaiian hoary bat, Hawaiʻi Island, USGS Science Data Catalog (SDC), Wildlife Biology, bat roost, All tags... bats, biota, endangered species, wildlife biology, 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 Hakalau Forest NWR plant, soil, litter, and decomposition data 2015-2019 This data release includes data and metadata on litterfall rates, foliar nitrogen and carbon, grass biomass, soil nitrogen and carbon, and native outplant survival rates for an experiment that added large quantities of woody litter to a restoration forest in an attempt to lower soil nitrogen and exotic grass biomass. All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. Broadly, this study looked at the ability to alter soil nitrogen cycling, exotic grass biomass and native outplant survival with large quantities of Metrosideros polymorpha litter in a forest dominated by Acacia koa. Tags: Ecology, Environmental Health, Forestry, Hakalau Forest National Wildlife Refuge, Hawaii, All tags... Land Use Change, Soil Sciences, USGS Science Data Catalog (SDC), avian diet, botany, ecology, exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, 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 Hawaii Army National Guard Hawaiian Hoary Bat Acoustic Monitoring 2012-2018 and Keaukaha Military Reservation Prey Study 2018 Acoustic sampling for occurrence of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus) was conducted at 18 "long-term" acoustic monitoring stations on 12 Hawaii Army National Guard (HIARNG) installations across the islands of Hawaii, Maui, Molokai, Oahu, and Kauai between 2012 and 2018. Hawaiian hoary bat insect prey sampling with paired acoustic monitoring was conducted at Keaukaha Military Reservation (KMR) on Hawaii Island from May to August, 2018. At this property, a herd of domestic goats (occasionally mixed with domestic sheep) were rotated among grazing plots as part of a weed control program managed by HIARNG. We sampled insect abundance and community within the area where goats were used for... Tags: Acoustic activity, Hawaii, Hawaiian Islands, Hawaiian hoary bat, Kauai, All tags... Maui, Molokai, Oahu, USGS Science Data Catalog (SDC), Wildlife Biology, biota, insect prey base, 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 Avian diet and vegetation data for Hakalau Forest, Hawaii, 2012-2016 This data release includes data and metadata on 1) avian diet 2) seed rain 3) understory plant composition 4) seedling abundance and 5) sampling locations for these sites. In addition it includes data on seedling abundance, grass cover and light levels for a grass removal/seed addition experiment . All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. This study looked at multiple biotic interactions that potentially lead to self-reinforcing feedbacks within intact forest and degraded forest sites. Tags: Ecology, Hakalau Forest National Wildlife Refuge, Hawaii, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... avian diet, botany, ecology, exotic grass, forest resources, forest restoration, land use change, plant competition, plant ecology, seed limitation, seedling recruitment, tropical forest dynamics, 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 Hawaii Volcanoes National Park Elepaio nest monitoring and black rat mark recapture data 2015-2017 In Hawai‘i and other oceanic islands with few native land mammals, black rats (Rattus rattus) are among the most damaging invasive vertebrate species to native forest bird populations and habitats, due to their arboreal behavior and generalist foraging habitats and habitat use. We evaluated the nesting response of Hawai‘i ‘Elepaio (Chasiempis sandwichensis; Monarchidae), a generalist insectivore, to the removal of black rats using rodenticide in a before-after-control-impact study in high and low, mesic montane habitat recovering from long-term damage from introduced ungulates and weeds. We monitored nesting and rat activity during 2015–2016 before applying diphacinone bait in 2017 to remove rats from two 700 x... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BACI, Ecology, Hawaii, Hawaii County 2, Hawaii Volcanoes National Park, All tags... Hawaii Volcanoes National Park, USGS Science Data Catalog (SDC), Wildlife Biology, invasive rat, invasive species, natural resource management, nest success, predator control, 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 1 2 3 4 5 6 »