Skip to main content
U.S. flag

An official website of the United States government

Data

Filter Total Items: 103

Northwestern Hawaiian Islands Laysan duck survival 1998-2018

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 i

Waipunalei ROD Management 2017-2018

This data release includes metadata and tabular datasets that document (1) Ceratocystis qPCR DNA detections in Passive Environmental Samplers (PES), (2) Ceratocystis qPCR DNA detections after pre-amplification, (3) wood and frass particle counts detected in PES (4) location of individual PES within the study area (5) ambrosia beetle gallery counts on felled 'ohi'a (6) ambrosia beetle gallery count

Hakalau Forest NWR Litterfall, Decomposition, Soils, and Seedling Survival Data 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. B

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

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 Lupahoehoe 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 M

Hawaiian Islands Hawaiian hoary bat samples, genome assembly, and SNP genotypes, 2009-2015

This dataset features tissue collection information, reference genome assembly, and single nucleotide polymorphisim (SNP) genotypes of 23 Hawaiian hoary bats collected across four Hawaiian Islands, Hawaii, Maui, Oahu, and Kauai. These data were collected in order to examine the phylogenetic history and patterns of genetic variation in the Hawaiian hoary bat. The raw sequencing data are deposited t

Hawai'i Island Rapid 'Ohi'a Death Ambrosia Beetle Communities and Frass 2018-2019

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 pro

Hawai'i Rapid 'Ohi'a Death Decontamination 2019-2020

Rapid 'Ohi'a Death is a fatal disease caused by Ceratocystis lukuohia and C. huliohia that are decimating Hawai'i's keystone trees species, 'ohi'a (Metrosideros polymorpha). We developed practical and effective decontamination practices for both cultured C. lukuohia and C. huliohia as well as Ceratocystis spores embedded in ambrosia beetle frass (fine particles of macerated wood or boring dust, be

Hawaii Volcanoes National Park stable isotope values from Hawaii forest birds 2012

Blood and feathers were collected from Hawaii forest birds (Apapane and Hawaii Amakihi) in high elevation forest to assess evidence for altitudinal movement. Feathers, red blood cells and plasma were analyzed for hydrogen, carbon, and nitrogen stable isotope ratios, and these were used to infer changes in elevation and diet over time. For each species, at one of 3 sites, isotope values from one or

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

Lanai habitat and ecological associations of two non-native ungulate species 2011

This series of five raster datasets includes three input rasters developed to model habitat suitability for two ungulate species on the island of Lanai; the two habitat suitability model raster datasets are also part of this data release. Input datasets were derived from WorldView-2 data to create vegetation (hereafter, NDVI) and bare ground indices, and from a Digital Elevation Model (DEM) to cre

Keaukaha Military Reservation Ohia Restoration under ROD-infected Trees 2019-2020

This data release includes data and metadata containing (1) Ohia (Metrosideros polymorpha) tree locations tested for Rapid Ohia Death (ROD) at Keaukaha Military Reserve, Hilo, HI (2) out-planted Ohia 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 ma