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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 (13) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Pacific Island Ecosystems Research Center U.S. Geological Survey - ScienceBase U.S. Geological Survey US Forest Service Rocky Mountain Research Station Christina R Leopold More... Categories Data (5) Data Release - Revised (1) Tag Types Theme (13) Place (13) USGS Scientific Topic Keyword (11) Harvest Set (13) Tag Schemes None (12) USGS Thesaurus (6) Common geographic areas (6) USGS (1) ISO 19115 Topic Category (6) National Agricultural Library Thesaurus (1) View Results as: JSON ATOM CSV Browse Folder

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 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 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 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 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 Hakalau litter, frass, soil, and understory foliar nitrogen during a koa moth outbreak, 2013-2014 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... Tags: Ecology, Hakalau Forest National Wildlife Refuge, Hawaii Island, USGS Science Data Catalog (SDC), biota, All tags... defoliation, foliar nutrients, frass, insect outbreak, litter fall, nutrient pulse, soil nitrogen, soil phosphorus, Fewer tags Hawaii Volcanoes National Park plant-soil feedbacks and fire data, 2019 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, All tags... fire, legumes, plant-soil feedbacks, restoration, rhizobia, Fewer tags Hawaii Volcanoes National Park plant community and fire severity data, 2018-2020 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... Categories: Data; Tags: BARC (Burned Area Reflectance Classification), Ecology, Hawaii Island, Hawaii Volcanoes National Park, USGS Science Data Catalog (SDC), All tags... aerial imagery, biota, fire, fire intensity, grass-fire cycles, invasive, Fewer tags Hawaiian Islands datasets quantifying the effects of invasive animals and plants on native forests across the archipelago 2019 (ver. 2.0 April 2020) Dataset includes publicly available geologic and rainfall data, and environmental and ecological data derived or collected for this project. Specifically, water infiltration measurements, interepreted field-saturated hydraulic conductivity values, ungulate activity, vegetation cover, general soil and weather conditions data are included. Soil samples were collected, lab analyzed, and are included in the dataset. Field-collected data are associated with plots that encompassed approximately a 3 x 3 m area; site data represent approximately 20 x 20 m. First posted: 4 March 2020 (available from author) Revised: April 13, 2020 (version 2.0) The revision is provided due to minor refinement of the dataset and updated... Categories: Data, Data Release - Revised; Tags: Hawaii, Hedychium gardnerianum, Kauai, Metrosideros polymorpha, USGS Science Data Catalog (SDC), All tags... biota, canopy cover, ecohydrology, field-saturated hydraulic conductivity, infiltration, invasive plant, mesic forest, ungulate, watershed, wet forest, Fewer tags Hakalau Forest NWR Bryophyte and Seedling Data 2018 This data release includes data and metadata on 1) the coverage and composition of bryophytes and other ground cover, 2) seedling abundance, composition, and rooting substrate and 3) sampling locations. All sites were within Hakalau Forest National Wildlife Refuge on Hawaii Island. This study aims to evaluate the role of bryophytes in seedling recruitment and thus forest regeneration in different forest types. We compared bryophyte composition and coverage between tree species (Acacia koa and Metrosideros polymorpha) and forest types (intact forest and restoration forest) and then sampled native woody seedling recruitment in the bryophytes as well as other ground covers, such as leaf litter, bare soil, and exotic... Tags: Botany, Ecology, Forestry, Hakalau Forest National Wildlife Refuge, Hawaii, All tags... Land Use Change, USGS Science Data Catalog (SDC), botany, bryophyte, ecology, forest resources, forest restoration, land use change, plant ecology, seedling recruitment, tropical forest dynamics, Fewer tags Nakula, Maui environmental controls on plant growth and seedling recruitment in a cloud-affected restoration site, 2016-2019 Fog has been demonstrated to support plant growth, survival and ecosystem maintenance spanning rainfall and elevation gradients across the world. Persistent fog and strong winds on high mountain slopes in Hawaiʻi create a unique ecological environment. We collected stem diameter measurements of three native plant species at Nakula Natural Area Reserve, Maui, during 2016-2019 and numerous environmental variables to examine how rain, fog and soil moisture influence plant water deficit and growth. We also collected seedling growth and survival data within plots where grass was removed, and control plots (no grass removal), to assess if and how grass removal influenced seedling growth and soil moisture. Tags: Ecology, Maui, Maui County, Nakula Natural Area Reserve, USGS Science Data Catalog (SDC), All tags... cloud water interception, dendrometer, fog, non-native grass, seedling recruitment, seedling survival, soil moisture, Fewer tags Hawaiʻi Volcanoes National Park plant cover, seedling, and plot description data, 2019 This data release includes data and metadata on plant and substrate cover, seedling counts, canopy cover, burn severity, and location information for plots that were established to monitor the efficacy of post-fire seed addition in Hawaiʻi Volcanoes National Park on the Island of Hawaiʻi. Tags: Ecology, Hawaii, Hawaii Volcanoes National Park, 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 Keaukaha Military Reservation ʻŌhiʻa Restoration under ROD-infected Trees 2019-2020 This data release includes data and metadata containing (1) ʻōhiʻa (Metrosideros polymorpha) tree locations tested for Rapid ʻŌhiʻa Death (ROD) at Keaukaha Military Reserve, Hilo, HI (2) out-planted ʻōhiʻa seedling information and survival status and (3) raw quantitative polymerase chain reaction (qPCR) results for all Ceratocystis lukuohia and huliohia testing. Data were used in the analysis for the manuscript "Successful restoration of Metrosideros polymorpha (ʻōhiʻa) is possible in forest sites with active Rapid ʻŌhiʻa Death infections." ʻŌhiʻa seedlings were planted under ROD-infected and non-infected ʻōhiʻa trees and soil, and monitored for ROD for one year. Tags: Ecology, Forestry, Hawaii, USGS Science Data Catalog (SDC), environment