Publications
Click below for access to more than 170,000 publications written by USGS scientists over the century-plus history of the bureau.
Filter Total Items: 820
Numerical simulation of flow in deep open boreholes in a coastal freshwater lens, Pearl Harbor Aquifer, O‘ahu, Hawai‘i Numerical simulation of flow in deep open boreholes in a coastal freshwater lens, Pearl Harbor Aquifer, O‘ahu, Hawai‘i
The Pearl Harbor aquifer in southern O‘ahu is one of the most important sources of freshwater in Hawai‘i. A thick freshwater lens overlays brackish and saltwater in this coastal aquifer. Salinity profiles collected from uncased deep monitor wells (DMWs) commonly are used to monitor freshwater-lens thickness. However, vertical flow in DMWs can cause the measured salinity to differ from...
Authors
Kolja Rotzoll
Basins in ARC-continental collisions Basins in ARC-continental collisions
Arc-continent collisions occur commonly in the plate-tectonic cycle and result in rapidly formed and rapidly collapsing orogens, often spanning just 5-15 My. Growth of continental masses through arc-continent collision is widely thought to be a major process governing the structural and geochemical evolution of the continental crust over geologic time. Collisions of intra-oceanic arcs...
Authors
Amy E. Draut, Peter D. Clift
Chapter two: Phenomenology of tsunamis II: Scaling, event statistics, and inter-event triggering Chapter two: Phenomenology of tsunamis II: Scaling, event statistics, and inter-event triggering
Observations related to tsunami catalogs are reviewed and described in a phenomenological framework. An examination of scaling relationships between earthquake size (as expressed by scalar seismic moment and mean slip) and tsunami size (as expressed by mean and maximum local run-up and maximum far-field amplitude) indicates that scaling is significant at the 95% confidence level...
Authors
Eric L. Geist
Coastal circulation and sediment dynamics in Pelekane and Kawaihae Bays, Hawaii--measurements of waves, currents, temperature, salinity, turbidity, and geochronology: November 2010--March 2011 Coastal circulation and sediment dynamics in Pelekane and Kawaihae Bays, Hawaii--measurements of waves, currents, temperature, salinity, turbidity, and geochronology: November 2010--March 2011
Coral reef communities on the Island of Hawaii have been heavily affected by the construction of Kawaihae Harbor in the 1950s and by subsequent changes in land use in the adjacent watershed. Sedimentation and other forms of land-based pollution have led to declines in water quality and coral reef health over the past two decades (Tissot, 1998). Erosion mitigation efforts are underway on...
Authors
Curt D. Storlazzi, Michael E. Field, M. Katherine Presto, Peter W. Swarzenski, Joshua B. Logan, Thomas E. Reiss, Timothy C. Elfers, Susan A. Cochran, Michael E. Torresan, Hank Chezar
Modelling reintroduced populations: The state of the art and future directions Modelling reintroduced populations: The state of the art and future directions
No abstract available.
Authors
Doug P. Armstrong, Michelle H. Reynolds
Palila abundance estimates and trend Palila abundance estimates and trend
The Palila (Loxioides bailleui) is an endangered, seed-eating, finch-billed honeycreeper found only on Hawai`i Island. Once occurring on the islands of Kaua`i and O`ahu and Mauna Loa and Hualālai volcanoes of Hawai`i, Palila are now found only in subalpine, dry-forest habitats on Mauna Kea (Banko et al. 2002). Previous analyses showed that Palila numbers fluctuated throughout the 1980s...
Authors
Richad Camp, Paul C. Banko
The effects of feral cats on insular wildlife: the Club-Med syndrome The effects of feral cats on insular wildlife: the Club-Med syndrome
Domestic cats have been introduced to many of the world‘s islands where they have been particularly devastating to insular wildlife which, in most cases, evolved in the absence of terrestrial predatory mammals and feline diseases. We review the effects of predation, feline diseases, and the life history characteristics of feral cats and their prey that have contributed to the extirpation...
Authors
Steve C. Hess, Raymond M. Danner
Rare and endangered species of Hawai`i Volcanoes National Park; endangered, threatened, and rare animal, plant, and community handbook Rare and endangered species of Hawai`i Volcanoes National Park; endangered, threatened, and rare animal, plant, and community handbook
Introduction Hawai`i Volcanoes National Park (HAVO) is the largest area in the State of Hawai`i protected for its geology and landscapes and its native flora and fauna. The park covers approximately 135,000 hectares or 333,000 acres in all. These lands stretch from the seacoast of Kīlauea Volcano to far above timberline on the summit of Mauna Loa (Figure 1). This vast area includes...
Authors
Linda W. Pratt, Thane K. Pratt, David Foote, P. Marcos Gorresen
Temporal variation in bird and resource abundance across an elevational gradient in Hawaii Temporal variation in bird and resource abundance across an elevational gradient in Hawaii
We documented patterns of nectar availability and nectarivorous bird abundance over ~3 years at nine study sites across an 1,800-m elevational gradient on Hawaii Island to investigate the relationship between resource variation and bird abundance. Flower density (flowers ha-1) and nectar energy content were measured across the gradient for the monodominant 'Ōhi'a (Metrosideros polymorpha...
Authors
Patrick J. Hart, Bethany L. Woodworth, Richard J. Camp, Kathryn Turner, Katherine McClure, Katherine Goodall, Carlene Henneman, Caleb Spiegel, Jaymi Lebrun, Erik Tweed, Michael Samuel
Tamarisk biocontrol using tamarisk beetles: Potential consequences for riparian birds in the southwestern United States Tamarisk biocontrol using tamarisk beetles: Potential consequences for riparian birds in the southwestern United States
The tamarisk beetle (Diorhabda spp.), a non-native biocontrol agent, has been introduced to eradicate tamarisk (Tamarix spp.), a genus of non-native tree that has become a dominant component of riparian woodlands in the southwestern United States. Tamarisk beetles have the potential to spread widely and defoliate large expanses of tamarisk habitat, but the effects of such a widespread...
Authors
Eben H. Paxton, Tad C. Theimer, Mark K. Sogge
Risk assessment, eradication, and biological control: Global efforts to limit Australian acacia invasions Risk assessment, eradication, and biological control: Global efforts to limit Australian acacia invasions
Aim Many Australian Acacia species have been planted around the world, some are highly valued, some are invasive, and some are both highly valued and invasive. We review global efforts to minimize the risk and limit the impact of invasions in this widely used plant group. Location Global. Methods Using information from literature sources, knowledge and experience of the authors, and the...
Authors
John R.U. Wilson, Carla Gairifo, Michelle R. Gibson, Margarita Arianoutsou, Baki B. Bakar, Stephane Baret, Laura Celesti-Grapow, Joseph M. DiTomaso, Jean-Marc Dufour-Dror, Christoph Kueffer, Christian A. Kull, John H. Hoffman, Fiona A.C. Impson, Lloyd L. Loope, Elizabete Marchante, Helia Harchante, Joslin L. Moore, Daniel J. Murphy, Jacques Tassin, Arne Witt, Rafael D. Zenni, David M. Richardson
Efficacy of fipronil for control of yellowjacket wasps in Hawaii Volcanoes National Park Efficacy of fipronil for control of yellowjacket wasps in Hawaii Volcanoes National Park
The western yellowjacket wasp (Vespula pensylvanica) invaded Hawai`i’s national parks and refuges following its spread throughout the islands in the late 1970s. The endemic arthropod fauna of Hawai`i is thought to be especially vulnerable to these predacious social Hymenoptera, and methods of wasp control have been a priority for conservation biology in Hawai`i. The efficacy of the...
Authors
David Foote, Cause Hanna, Cynthia King, Eric Spurr