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Filter Total Items: 64
USGS biologists sample fish and macroinvertebrates from Streams in Palau
Date Published: February 19, 2019
Status: Active

Risk Analysis of Invasive Freshwater Fishes in Hawaii and Micronesia

Invasive species threaten biodiversity around the world, especially on islands. USGS scientists are helping to identify fish species that have the greatest potential to invade the fresh waters of Microneisa. 

Water flowing in the Wailuku River in Hawai'i
Date Published: November 29, 2018
Status: Active

Webinar: Assessing the Impact of Future Climate and Introduced Species on Hawaiʻi's Aquatic Ecosystems

View this webinar to learn how a warming climate will have fundamental impacts on freshwater, a critical driver of tropical island ecosystems.

Contacts: Yin-Phan Tsang, Hannah Clilverd
coral reef
Date Published: November 5, 2018
Status: Active

Coral Reef Facts

These facts about coral reefs are presented in conjunction with the USGS Coral Reef Project.

Contacts: Curt Storlazzi
Old-growth forest on the west side of the Cascade Range
Date Published: October 30, 2018
Status: Active

Developing optimal post-fire restoration strategies to build ecosystem resilience- Stephanie Yelenik

A widespread challenge for National Parks is restoring post-fire habitats to native states that are resilient to further fire. Especially in
areas with a history of grazing, exotic grasses perpetuate ‘grass-fire’ cycles by acting as fire carriers between habitats, including forests. 

A rat peeks through the tall grass in Hawaii Volcanoes National Park
Date Published: June 26, 2018
Status: Active

Monitoring Bird and Rat Behavior to Improve Invasive Species Management

Introduced rats are notorious predators of birds and their nests worldwide, but especially on remote islands. Rats (Rattus exulans) first arrived in Hawai‘i with Polynesian colonists about 1,000 years ago, resulting in deleterious consequences for native birds and ecosystems. Since Western contact in 1778, two additional rat species have become established in Hawai‘i, including the highly...

screenshot of part of Oahu map with yellow and orange colors where landslides could occur
Date Published: June 15, 2018
Status: Active

Preliminary Landslide Susceptibility Maps and Data for Hawaii

Landslide Susceptibility Data and Maps provide tools for hazard assessment prior to an event that may cause landslides.

Close-up photograph of stem, leaves and flower buds of haha plant
Date Published: June 6, 2018
Status: Active

Using Plant Physiologic Responses to Environmental Conditions to Improve Species and Habitat Management in Hawaii

Recent studies show that past and ongoing environmental changes have been substantial and have likely already affected conservation efforts in Hawai‘i. Much of the state has experienced substantial drying, including decreases in mean annual precipitation since the 1920s, longer rainless periods, and decreasing stream flow. Temperatures have been increasing in Hawai‘i for the last 40 years,...

Photo of Bird Bands in a Variety of Sizes and Types
Date Published: May 1, 2018
Status: Active

Bird Banding Laboratory

The Bird Banding Laboratory (BBL) is an integrated scientific program established in 1920 supporting the collection, archiving, management and dissemination of information from banded and marked birds in North America.  This information is used to monitor the status and trends of resident and migratory bird populations. Because birds are good indicators of the health of the environment, the...

coastal vulnerability of sea-level rise map
Date Published: January 18, 2018
Status: Active

National Assessment of Coastal Vulnerability to Sea Level Rise

The original national coastal vulnerability index (CVI) assessment was motivated by expected accelerated sea-level rise (SLR) and the uncertainty in the response of the coastline to SLR. This research was conducted between 1999 and 2001, and is currently being updated using new data sources and methodology. This original study was part of the ...

Oblique aerial photograph looking to the southwest along the southern end of Cedar Island, Virginia
Date Published: January 18, 2018
Status: Active

Long-Term Coastal Change

Goals of this task include developing and improving coastal-change assessments and supporting long-term planning and decision making to ensure sustainable coastal economies, infrastructure, and ecosystems.

Cliff erosion is a common storm-induced hazard along the West Coast.
Date Published: January 17, 2018
Status: Active

National Assessment of Coastal Change Hazards

Research to identify areas that are most vulnerable to coastal change hazards including beach and dune erosion, long-term shoreline change, and sea-level rise.

Kawela ridge, Moloka'i, Hawaii
Date Published: January 11, 2018
Status: Completed

Studies on the Rapidly Eroding Reef

This study focuses on assessing changes in vegetation cover and composition inside and outside a fenced exclosure within the USGS Ridge-to-Reef study area on the island of Moloka‘i. This information will be delivered to federal, state, and private land managers who are trying to determine best management practices to reduce erosion and sediment runoff from this dry habitat which has been...

Filter Total Items: 43
USGS
January 1, 2019

Conductivity-Temperature-Depth (CTD) profile data were collected along transects across study areas of west and east Hawaii Island between 2010 and 2014. Measurements were made over a range of tide and weather conditions and help characterize the spatial extent and variability in estuarine conditions across the reef when grouped by 1 to 2-hour survey period or by season. Sites of cold and warm gr

USGS
January 1, 2019

Time-series data of water level, water temperature, and salinity were collected at 10 locations along west Hawaii Island between 2010 and 2011 in nearshore coral reef settings. Conductivity-temperature-depth sensors were attached to fossil limestone, rock, or dead coral within otherwise healthy coral reef settings spanning water depths of 8 to 23 ft. Continuous measurements were made every 10 or

USGS
January 1, 2019

Observations of coral disease and health indicators were documented by scuba divers along pre-determined transects and are presented here in comma-separated format. Included in the table are coral species observed, colony size, types and number of indicators observed, and a size range of indicators observed.

USGS
January 1, 2019

Coral Point Count with Excel extensions (CPCe; Kohler and Gill, 2006) was used to help calculate percent of coral cover or other benthic substrates from a randomly selected subset of seafloor photographs collected on the west Hawaii Island coast.

USGS
January 1, 2019

This part of the data release presents projected flooding extent polygon (flood masks) and flooding depth points (flood points) shapefiles based on wave-driven total water levels for the Territory of Puerto Rico (the islands of Culebra, Puerto Rico, and Vieques). For each island there are 8 associated flood mask and flood depth shapefiles: one for each four nearshore wave energy return periods (r

Laysan albatross adults and chicks
June 18, 2018

This collection of nine datasets covers Midway Atoll and Laysan Island in the Northwestern Hawaiian Islands, and was created to help estimate the impacts of the March 11, 2011 tsunami event on avifauna in the Northwestern Hawaiian Islands. 

Aerial photograph of Laysan Island, Hawaii
June 18, 2018

This data release consists of two ESRI geodatabases that store inundation areas for various future scenarios of sea-level rise, groundwater rise, and storm waves for Laysan Island and Midway Atoll in the Northwestern Hawaiian Islands.

Map of Submerged Lands
April 4, 2018

The USGS Coastal and Marine Geology Program (CMGP) Internet Map Server is an interactive mapping service which allows the user to explore and download GIS data sets published by CMGP.

Akepa
March 23, 2018

We quantified the availability of breeding habitat of the endangered Hawaiian Akepa (Loxops coccineus). The species is thought to nest excusively in natural cavities within mature ohia (Metrosideros polymorpha) trees but birds commonly occur in short stature trees that presumably do not have any natural cavities because of their polyploidal (many-branched) structure.

Ohia canopy from below
October 24, 2017

These two raster data layers depict the land cover and degree of human disturbance to plant communities on the seven main Hawaiian Islands, and were developed as part of a comprehensive USGS assessment of carbon sequestration potential by natural ecosystems in the State of Hawaii.

Koa flowers
October 24, 2017

The datasets used in the the research project entitled, "Facilitating Adaptation in Montane Plants to Changing Precipitation along an Elevation Gradient," are presented. Report available.

Coastal strand vegetation
October 24, 2017

 

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). Report available.

Filter Total Items: 107
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Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

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Year Published: 2015

Dim ultraviolet light as a means of deterring activity by the Hawaiian hoary bat Lasiurus cinereus semotus

Widespread bat fatalities at industrial wind turbines are a conservation issue with the potential to inhibit efficient use of an abundant source of energy. Bat fatalities can be reduced by altering turbine operations, but such curtailment decreases turbine efficiency. If additional ways of reducing bat fatalities at wind turbines were available...

Gorresen, P. Marcos; Cryan, Paul M.; Dalton, David C.; Wolf, Sandy; Johnson, Jessica A.; Todd, Christopher M.; Bonaccorso, Frank J.
Gorresen, P.M., P.M. Cryan, D. Dalton, J. Johnson, C. Todd, S. Wolf, and F.J. Bonaccorso. 2015. Dim ultraviolet light as a means of deterring activity by the Hawaiian hoary bat (Lasiurus cinereus semotus). Endangered Species Research 28:249-257.

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Year Published: 2015

Avian malaria in Hawaiian forest birds: Infection and population impacts across species and elevations

Wildlife diseases can present significant threats to ecological systems and biological diversity, as well as domestic animal and human health. However, determining the dynamics of wildlife diseases and understanding the impact on host populations is a significant challenge. In Hawai‘i, there is ample circumstantial evidence that introduced...

Samuel, Michael D.; Woodworth, Bethany L.; Atkinson, Carter T.; Hart, P. J.; LaPointe, Dennis

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Year Published: 2015

Mean annual water-budget components for the Island of Oahu, Hawaii, for average climate conditions, 1978-2007 rainfall and 2010 land cover

The shapefile associated with this metadata file represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Oahu, Hawaii. The water-budget components in the shapefile were computed by a water-budget model for a scenario representative of average climate conditions (1978-2007 rainfall) and 2010 land...

Engott, John A.
Engott, J.A., 2015, Mean annual water-budget components for the Island of Oahu, Hawaii, for average climate conditions, 1978-2007 rainfall and 2010 land cover: USGS Water Resources NSDI Node, accessed February 23, 2015, at http://dx.doi.org/10.5066/F7XP72ZX.

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Year Published: 2015

Mean annual water-budget components for the Island of Oahu, Hawaii, for drought conditions, 1998-2002 rainfall and 2010 land cover

The shapefile associated with this metadata file represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Oahu, Hawaii. The water-budget components in the shapefile were computed by a water-budget model for a scenario representative of drought conditions (1998-2002 rainfall) and 2010 land cover, as...

Engott, John A.
Engott, J.A., 2015, Mean annual water-budget components for the Island of Oahu, Hawaii, for drought conditions, 1998-2002 rainfall and 2010 land cover: USGS Water Resources NSDI Node, accessed February 23, 2015, at http://dx.doi.org/10.5066/F7SX6B7M.

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Year Published: 2015

Baseline water-quality sampling to infer nutrient and contaminant sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009

Baseline water-quality sampling was conducted for dissolved nutrients and for chemical and isotopic tracers at Kaloko-Honokōhau National Historical Park on the Island of Hawai'i. Existing and future urbanization in the surrounding areas have the potential to affect water quality in the Park, and so the National Park Service and the U.S. Geological...

Hunt, Charles D.
Hunt, C.D., Jr., 2014, Baseline water-quality sampling to infer nutrient and contaminant sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009: U.S. Geological Survey Scientific Investigations Report 2014-5158, 52 p., http://dx.doi.org/10.3133/sir20145158.

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Year Published: 2015

One carp, two carp: are there more carp in the Wailoa River?

The February, 2015 issue of Hawaii Fishing News included the annual list of Hawai`i records for the largest fish of various species caught in the state. Among the new records was one for a 15-pound grass carp (Ctenopharyngodon idella) caught by Avery Berido in the Wailoa River at Hilo on September 13, 2013. A photograph taken by Mr. Berido of the...

Mundy, Bruce C; Nico, Leo; Tagawa, Annette
Mundy B., Nico, L.G., and Tagawa, A., 2015, One carp, two carp: Are there more grass carp in the Wailoa River?: Hawaii Fishing News, v. 40, no. 6, p. 18-19.

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Year Published: 2014

Low-flow characteristics of streams in the Lahaina District, West Maui, Hawai'i

The purpose of this study was to characterize streamflow availability under natural low-flow conditions for streams in the Lahaina District, west Maui, Hawaiʻi. The study-area streams included Honolua Stream and tributary Pāpua Gulch, Honokahua Stream and tributary Mokupeʻa Gulch, Kahana Stream, Honokōwai Stream and tributaries Amalu and Kapāloa...

Cheng, Chui Ling
Low-flow characteristics of streams in the Lahaina District, West Maui, Hawai'i; 2014; SIR; 2014-5087; Cheng, Chui Ling

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Year Published: 2014

Relation of landslides triggered by the Kiholo Bay earthquake to modeled ground motion

The 2006 Kiholo Bay, Hawaii, earthquake triggered high concentrations of rock falls and slides in the steep canyons of the Kohala Mountains along the north coast of Hawaii. Within these mountains and canyons a complex distribution of landslides was triggered by the earthquake shaking. In parts of the area, landslides were preferentially located on...

Harp, Edwin L.; Hartzell, Stephen H.; Jibson, Randall W.; Ramirez-Guzman, L.; Schmitt, Robert G.
Relation of landslides triggered by the Kiholo Bay earthquake and modeled ground motion; 2012; Article; Book; Landslides and Engineered Slopes: Protecting Society through Improved Understanding; Harp, E. L.; Hartzell, S. H.; Jibson, R. W.; Ramirez-Guzman, L.

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Year Published: 2013

Vegetation map of the watersheds between Kawela and Kamalō Gulches, Island of Molokaʻi, Hawaiʻi

In this document we describe the methods and results of a project to produce a large-scale map of the dominant plant communities for an area of 5,118.5 hectares encompassing the Kawela and Kamalō watersheds on the island of Molokaʻi, Hawaiʻi, using digital image analysis of multi-spectral satellite imagery. Besides providing a base map of the area...

Jacobi, James D.; Ambagis, Stephen
Vegetation map of the watersheds between Kawela and Kamalō Gulches, Island of Molokaʻi, Hawaiʻi; 2013; SIR; 2013-5093; Jacobi, James D.; Ambagis, Stephen

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Year Published: 2013

The magnetic tides of Honolulu

We review the phenomenon of time-stationary, periodic quiet-time geomagnetic tides. These are generated by the ionospheric and oceanic dynamos, and, to a lesser-extent, by the quiet-time magnetosphere, and they are affected by currents induced in the Earth's electrically conducting interior. We examine historical time series of hourly magnetic-...

Love, Jeffrey J.; Rigler, Erin Joshua
The magnetic tides of Honolulu; 2013; Abstract or summary; Conference publication; Progress in EM Induction Studies of Crust and Mantle From Land, Sea, Air, and Space lll Posters; Love, Jeffrey J.;Rigler, Erin Joshua.

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Year Published: 2013

Freshwater and drought on Pacific Islands

Izuka, Scot K.; Keener, Victoria
Freshwater and drought on Pacific Islands; 2013; Book chapter; Book; Climate Change and Pacific Islands: Indicators and Impacts: Report for the 2012 Pacific Islands Regional Climate Assessment; Scot K Izuka; Keener, Victoria

Filter Total Items: 1,131
Hot, molten lava flows slowly into the ocean, and the temperature difference between lava and water is creating steam.
August 5, 2018

Viscous lava hits ocean water

A viscous pāhoehoe flow from Kilauea Volcano, Hawaiʻi , entering the ocean near Isaac Hale Beach Park on the morning of August 5, 2018.

Feral pigs approach out of the forest, Hilo Hawaii.
July 27, 2018

Feral pigs approach the road next to a forested area in Hilo, Hawaii

A group of feral pigs leaves the forest and approaches the photographer at the side of the road. Many parts of Hilo and Hawaii Island are experiencing increased interaction with feral wildlife.

July 11, 2018

Four Examples of Nest Predation by Rats - Hawaii Volcanoes National

Black rats were unintentionally introduced to Hawai’i in the late 1800s, most likely as hitchhikers on trading vessels. Since their introduction, they have disrupted native ecosystems by destroying native plants, eating native arthropods, and depredating bird nests. Black rats have contributed to population declines and species extinctions of Hawaiian forest birds, and

...
July 11, 2018

Four Examples of Nest Predation by Rats (Short)

Black rats were unintentionally introduced to Hawai’i in the late 1800s, most likely as hitchhikers on trading vessels. Since their introduction, they have disrupted native ecosystems by destroying native plants, eating native arthropods, and depredating bird nests. Black rats have contributed to population declines and species extinctions of Hawaiian forest birds, and

...
Night time view of Halekamahina
July 10, 2018

Kīlauea Volcano — Looking Uprift Past Halekamahina

View from Bryson's quarry around 11:45 p.m. HST last night looking uprift past Halekamahina (an older ash cone) to 

...
View of fissure 8
July 10, 2018

Kīlauea Volcano — Fissure 8 and Lava Channel

Fissure 8 and a full lava channel as seen during HVO's early morning overflight. The visible road is Nohea Street in the Leilani Estates subdivision. Steam generated from heated rain water rose from the 

...
Aerial view of Kapoho Crater
July 10, 2018

Kīlauea Volcano — Aerial View of Kapoho Crater

Aerial view of Kapoho Crater looking toward the south-southeast. Part of the lava channelbecame blocked just upstream of Kapoho Crater yesterday, diverting flows to the west and then south around the crater (center right). Lava exiting a crusted section of the channel continued flowing in the channel pathway (lower center to left).

July 10, 2018

Kīlauea Volcano — Lava Oozing

Lava oozes from a small breakout near Bryson's 

...
Aerial of lava channel
July 10, 2018

Kīlauea Volcano — Landscape Differences

During HVO's morning overflight today, the dramatic difference in landscapes on the northern and southern sides of the fissure 8 lava channel was readily apparent. With dominant trade winds blowing heat and volcanic gases to the southwest, the north side of the lava channel remains verdant, while, in stark contrast, vegetation on the south side has been severely impacted

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Rain over a lava flow area
July 9, 2018

Kīlauea Volcano — Rain at Leilani Estates

This photograph taken during this morning's overflight shows heavy, localized rain at 

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Laze plume from ocean entry
July 9, 2018

Kīlauea Volcano — Warm Ponds Ocean Entry

Southern end of the active fissure 8 flow margin north of the Analannui Park, known as the warm ponds. The flow margin is estimated to be about 500 m (0.3 mi) from the park.

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Trained scent-detection dog and dog trainer at work in a taro field at Hanalei National Wildlife Refuge
November 22, 2017

Dogs have great olfactory abilities and wildlife biologists think they can help endangered waterbirds in Hawai‘i. Dogs are being trained to sniff out the endangered ducks (koloa maoli (Anas wyvilliana) and Laysan ducks (A. laysanensis)) that die of avian botulism. 

Greater White-fronted Goose on the North Slope of Alaska
July 17, 2017

Direct encounters with humans can increase the likelihood that nesting geese will lose their eggs to predators, according to a recent study released Monday, July 17.

Image: 'Akiapōlā'au
July 10, 2017

Forest birds on the island of Hawaii are responding positively to being restored in one of the largest, ongoing reforestation projects at Hakalau Forest National Wildlife Refuge, according to a new study released July 10 in the journal Restoration Ecology.

A Laysan Albatross chick in its nest near the coastline at Midway Atoll, Hawaii
June 22, 2017

Sudden flooding hit islands of global importance for Pacific birds highlighting threats and opportunities for conservation planning

Side-by-side comparison of the northwest wall of Kīlauea Caldera on a clear day (left) and a day with thick vog (right).
May 18, 2017

Just like smog and fog, this EarthWord is not what you want to see while driving...

A healthy coral reef at Buck Island, U.S. Virgin Island
April 20, 2017

In the first ecosystem-wide study of changing sea depths at five large coral reef tracts in Florida, the Caribbean and Hawai’i, U.S. Geological Survey researchers found the sea floor is eroding in all five places, and the reefs cannot keep pace with sea level rise. As a result, coastal communities protected by the reefs are facing increased risks from storms, waves and erosion.

aerial photograph of steaming & smoking lava lake. Orange lava is visible through cracks & spatter in the lake's black crust.
October 4, 2016

Video release: New video footage of Kīlauea Volcano’s summit lava lake is now available as b-roll to news media outlets.

White gas plume rising straight up from Kilauea Volcano summit with distant, bright, full moon.
August 18, 2016

New informational products about the health hazards of volcanic air pollution known as “vog,” are available through a new interagency partnership.

White gas plume rising straight up from Kilauea Volcano summit with distant, bright, full moon.
August 16, 2016

Reporters are invited to attend a telephone press conference on Thursday, August 18, 2016, 2:00 p.m. HST, about new informational resources regarding vog and related health concerns in Hawaii. 

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