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
Distribution and prevalence of knemidokoptic mange in Hawai`i `Amakihi on the island of Hawaii Distribution and prevalence of knemidokoptic mange in Hawai`i `Amakihi on the island of Hawaii
Knemidokoptic mange was first observed on two Hawai‘i ‘Amakihi (Hemignathus virens) mist netted in Manuka Natural Area Reserve (NAR) on the Island of Hawai‘i in June 2007. Microscopic examination of skin scrapings from lesions of the infested individuals revealed the scaley-leg mite, Knemidokoptes jamaicensis. Continued surveillance at Manuka NAR (2007-2009) documented a 24% (15/63)...
Authors
Jacqueline Gaudioso, Dennis LaPointe, Carter T. Atkinson, Chloe Apelgren
Palila Restoration Research, 1996−2012. Summary and management implications Palila Restoration Research, 1996−2012. Summary and management implications
The Palila Restoration Project was initiated in 1996 by the U.S. Geological Survey to assist government agencies mitigate the effects of realigning Saddle Road (Highway 200) through Palila Critical Habitat (U.S. Fish and Wildlife Service 1998, Federal Highway Administration 1999). Ecological research on the palila (Loxioides bailleui), an endangered Hawaiian forest bird, carried out by...
Authors
Paul C. Banko, Chris Farmer, Steve Dougill, Luanne Johnson
Palila restoration research, 1996−2012 Palila restoration research, 1996−2012
The Palila Restoration Project was initiated in 1996 by the U.S. Geological Survey to assist government agencies mitigate the effects of realigning Saddle Road (Highway 200) through Palila Critical Habitat (U.S. Fish and Wildlife Service 1998, Federal Highway Administration 1999). Ecological research on the palila (Loxioides bailleui), an endangered Hawaiian forest bird, carried out by...
Authors
Paul C. Banko, Chris Farmer, Carter T. Atkinson, Kevin W. Brinck, Richad Camp, Colleen Cole, Raymond Canner, Steve Dougill, Daniel Goltz, Elizabeth Gray, Steven C. Hess, Jennifer Higashino, Susan I. Jarvi, Luanne Johnson, Leona Laniawe, Megan Laut, Linda Miller, Christopher J. Murray, Daniel Nelson, David L. Leonard, Peter Oboyshi, Leanne Patch-Highfill, David D. Pollock, Kalei Rapozo, Marla Schwarzfeld, John Slotterback, Robert M. Stephens
Behavior of bats at wind turbines Behavior of bats at wind turbines
Wind turbines are causing unprecedented numbers of bat fatalities. Many fatalities involve tree-roosting bats, but reasons for this higher susceptibility remain unknown. To better understand behaviors associated with risk, we monitored bats at three experimentally manipulated wind turbines in Indiana, United States, from July 29 to October 1, 2012, using thermal cameras and other methods...
Authors
Paul M. Cryan, P. Marcos Gorresen, Cris D. Hine, Michael Schirmacher, Robert H. Diehl, Manuela M. Huso, David T.S. Hayman, Paul D. Fricker, Frank J. Bonaccorso, Douglas H. Johnson, Kevin W. Heist, David C. Dalton
Changes in Mauna Kea Dry Forest Structure 2000-2014 Changes in Mauna Kea Dry Forest Structure 2000-2014
Changes in the structure of the subalpine vegetation of Palila Critical Habitat on the southwestern slope of Mauna Kea Volcano, Hawai‘i, were analyzed using 12 metrics of change in māmane (Sophora chrysophylla) and naio (Myoporum sandwicense) trees surveyed on plots in 2000 and 2014. These two dominant species were analyzed separately, and changes in their structure indicated changes in...
Authors
Paul C. Banko, Kevin W. Brinck
The economic viability of smallholder timber production under expanding açaí palm production in the Amazon Estuary The economic viability of smallholder timber production under expanding açaí palm production in the Amazon Estuary
Relatively little attention has been paid to the economic potentials and limitations of tropical timber production and management at smallholder scales, with the most relevant research focusing on community forestry efforts. As a rare tropical example of long-lasting small-scale timber production, in this study we explore the economics of smallholder vertically integrated timber use to...
Authors
Lucas B. Fortini, Douglas R. Carter
Trends in conservation research and management in Hawai‘i over the past 20 years Trends in conservation research and management in Hawai‘i over the past 20 years
Hawaiʻi, an archipelago of the most isolated inhabited islands on the planet, faces unique and extreme challenges to its biodiversity. We examined how the conservation community has responded to these challenges and how the responses have changed over time, using twenty years of abstracts from the Hawaiʻi Conservation Conference, a yearly gathering of the majority of scientists, managers...
Authors
Daniela Dutra Elliott, Lucas B. Fortini, David Cameron Duffy
Low-flow characteristics of streams in the Lahaina District, West Maui, Hawai'i 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 Streams, Wahikuli Gulch and tributary...
Authors
Chui Ling Cheng
Modeling Hawaiian ecosystem degradation due to invasive plants under current and future climates Modeling Hawaiian ecosystem degradation due to invasive plants under current and future climates
Occupation of native ecosystems by invasive plant species alters their structure and/or function. In Hawaii, a subset of introduced plants is regarded as extremely harmful due to competitive ability, ecosystem modification, and biogeochemical habitat degradation. By controlling this subset of highly invasive ecosystem modifiers, conservation managers could significantly reduce native...
Authors
Adam E. Vorsino, Lucas B. Fortini, Fred A. Amidon, Stephen E. Miller, James D. Jacobi, Jonathan P. Price, Sam `Ohukani`ohi`a Gon, Gregory A. Koob
Hawaiian forest bird trends: using log-linear models to assess long-term trends is supported by model diagnostics and assumptions (reply to Freed and Cann 2013) Hawaiian forest bird trends: using log-linear models to assess long-term trends is supported by model diagnostics and assumptions (reply to Freed and Cann 2013)
Freed and Cann (2013) criticized our use of linear models to assess trends in the status of Hawaiian forest birds through time (Camp et al. 2009a, 2009b, 2010) by questioning our sampling scheme, whether we met model assumptions, and whether we ignored short-term changes in the population time series. In the present paper, we address these concerns and reiterate that our results do not...
Authors
Richard J. Camp, Thane K. Pratt, P. Marcos Gorresen, Bethany L. Woodworth, John J. Jeffrey
Competitive impacts of an invasive nectar thief on plant-pollinator mutualisms Competitive impacts of an invasive nectar thief on plant-pollinator mutualisms
Plant–pollinator mutualisms are disrupted by a variety of competitive interactions between introduced and native floral visitors. The invasive western yellowjacket wasp, Vespula pensylvanica, is an aggressive nectar thief of the dominant endemic Hawaiian tree species, Metrosideros polymorpha. We conducted a large-scale, multiyear manipulative experiment to investigate the impacts of V
Authors
Cause Hanna, David Foote, Claire Kremen
Developing tools to eradicate ecologically destructive ants on Rose Atoll: effectiveness and attractiveness of formicidal baits Developing tools to eradicate ecologically destructive ants on Rose Atoll: effectiveness and attractiveness of formicidal baits
A key factor contributing to the decline in the population of Pisonia grandis on Rose Atoll is an infestation of the non-native scale, Pulvinaria urbicola (Homoptera: Coccidae). Ants, in facultative relationships with scale insects, may facilitate scale population growth and increase their effect on plant hosts. Three ant species found on Rose Atoll, Tetramorium bicarinatum, T...
Authors
Robert Peck, Paul Banko, Frank Pendleton