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Rat mark-recapture data in Hawaii Volcanoes National Park from 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. This is a selected data set used to assess the impacts of rodenticide treatment on black rat (Rattus rattus) abundance within Hawaii Volcanoes National Park (HAVO). The key objective was to identify rat abundance before and after rodenticide treatment, using paired non-treatment and treatment plots at high elevation (1700-1830m) and low elevation (1220-1340 m). This dataset includes the results of a mark recapture study that took place within... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BACI, Hawaii, Hawaii County 2, Hawaii Volcanoes National Park, Hawaii Volcanoes National Park, All tags... invasive rat, invasive species, natural resource management, nest success, predator control, Fewer tags Molokai (Kawela) USGS ridge-to-reef vegetation monitoring study 2009-2014 - raw data file This file contains the raw data collected as part of a vegetation monitoring study that was conducted to assess the changes in plant species frequency inside and outside a fenced exclosure, constructed to eliminate browsing and grazing by feral goats, from 2009-2014 in the US Geological Survey's Kawela research site on the island of Molokai, Hawaii. Categories: Data; Tags: Hawaii, Molokai, animals, biota, ecosystem management, All tags... field inventory and monitoring, invasive species, vascular plants, vegetation, Fewer tags Molokai (Kawela) USGS ridge-to-reef vegetation monitoring study 2009-2014 – plant species list List of all plant species found in, or adjacent to, plots K1 or K2 during all the sampling periods. Species recorded at least once during the vegetation transect surveys are marked with “Yes”. The taxonomy follows Wagner and others (2005). Categories: Data; Tags: Hawaii, Molokai, biota, systematics and taxonomy, vascular plants 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 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 High-Resolution Land Cover Maps of Lāna‘i, Hawai‘i, 2020 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... Tags: Conservation, Ecology, Hawaiian Islands, Hawai‘i, Invasive species, All tags... Land cover, Lāna‘i, Machine learning, Mapping, Pacific Islands, Remote sensing, USGS Science Data Catalog (SDC), Vegetation, biota, climatologyMeteorologyAtmosphere, Fewer tags Oahu Island Hawaiian stilt GPS satellite tracking data, 2017-2018 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), All tags... Wildlife Biology, biota, Fewer tags Molokai (Kawela) USGS ridge-to-reef vegetation monitoring study 2009-2014 This data release contains two files: 1) the raw data collected as part of a vegetation monitoring study that was conducted to assess the changes in plant species frequency inside and outside a fenced exclosure, constructed to eliminate browsing and grazing by feral goats, from 2009-2014 in the US Geological Survey's Kawela research site on the island of Molokai, Hawaii. 2) A list of species that were recorded during the vegetation monitoring or species that were found in the general area but not recorded during monitoring. Tags: Botany, Ecology, Hawaii, Molokai, USGS Science Data Catalog (SDC), All tags... animals, biota, ecosystem management, field inventory and monitoring, invasive species, vascular plants, vegetation, Fewer tags Rat mark-recapture plot-area data in Hawaii Volcanoes National Park from 2015-2017 This is a selected data set that outlines the plot areas and trapping grids used to monitor 'Elepaio and black rat activity within Hawaii Volcanoes National Park (HAVO) from 2015-2017. These data provide the spatial reference and structure of four field plots used in the study. Please reference the associated metadata and datasets that correspond to this publication for more information on how these locations were used. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BACI, Hawaii, Hawaii County 2, Hawaii Volcanoes National Park, Hawaii Volcanoes National Park, All tags... invasive rat, invasive species, natural resource management, nest success, predator control, Fewer tags Kauai Bird Surveys (12 species) 1981-2012 Bird surveys were conducted in 1981, 1989, 1994, 2000, 2005, 2007, 2008, and 2012. From these data we calculated species-specific density and abundance estimates. We conducted separate trends assessments for the Interior (long [1981-2012] and short [2000-2012]) and the Exterior (surveyed 2000-2012) portions of the Alakai Plateau, and using abundance estimates for native species from 2000-2012, we fit a linear and exponential growth model to the population numbers of each species to evaluate time to extinction. Categories: Data; Types: Citation; Tags: Alakai Plateau, Kauai Island, State of Hawaii, USGS Science Data Catalog (SDC) Hawaii Island, Hawaiian hoary bat roosting ecology and detection 2018-2019 The Hawaiian hoary bat (Lasiurus cinereus semotus), a federally and state listed endangered subspecies, is the only extant native terrestrial mammal in the Hawaiian archipelago. It is an insectivorous, solitary and foliage-roosting species that generally roosts alone or in mother-pup family groups. A total of 58 bats (17 female; 41 male; 56 adult; 2 juvenile) were captured at multiple locations on the east side of Hawaii Island from May 2018 through September 2019. Radio transmitters were affixed to 56 bats including two individuals that were recaptured and radio-tagged twice. When possible, radio telemetry was used to locate bats in trees and forest stands used for day-roosting. A total of 23 trees were identified... Tags: Ecology, Forestry, Hawaii island, Hawaiian hoary bat, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biota, echolocation, forest stand, roost tree, telemetry, thermal imaging, Fewer tags Elepaio nest monitoring data in Hawaii Volcanoes National Park from 2015-2017 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 activity during 2015–2016 before applying diphacinone bait in 2017 to remove rats from two 700 x 700-m treatment plots that were paired with two non-treatment plots. We continued monitoring through July 2017. This data set includes a summarized account of Elepaio nests during the 2015, 2016, and 2017 breeding seasons. There is a unique identifier for each nest ('NestID '), along with... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BACI, Hawaii, Hawaii County 2, Hawaii Volcanoes National Park, Hawaii Volcanoes National Park, All tags... invasive rat, invasive species, natural resource management, nest success, predator control, Fewer tags Hawaii Island Regeneration of Metrosideros polymorpha forests since landscape-level canopy dieback in the 1970s We analyzed very-high-resolution imagery to assess status of Metrosideros polymorpha forests across an 83,603-hectare study area that experienced extensive canopy dieback in the 1970s on the eastern side of the island of Hawaii. Using GIS we generated 1,170 virtual vegetation plots with a 100-m radius; 541 plots in areas mapped in 1977 with trees dead or mostly defoliated (dieback), and 629 plots in adjacent wet forest habitat, previously mapped as non-dieback condition. In each plot we estimated the percent of M. polymorpha trees dead or mostly defoliated, and percent of trees with healthy crowns. These results were combined with habitat data to produce a spatial model depicting probability of canopy dieback within... Tags: Botany, Ecology, Forestry, Hawaii, Metrosideros polymorpha, All tags... USGS Science Data Catalog (SDC), biota, canopy dieback, ohia, rain forests, regeneration, vegetation, Fewer tags