Publications
Filter Total Items: 497
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). Four ne
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
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 loss of ripa
Authors
Eben H. Paxton, Tad C. Theimer, Mark K. Sogge
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 responses fr
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
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 insecticide fip
Authors
David Foote, Cause Hanna, Cynthia King, Eric Spurr
The history of mammal eradications in Hawai`i and the United States associated islands of the Central Pacific
Many eradications of mammal taxa have been accomplished on United States associated islands of the Central Pacific, beginning in 1910. Commonly eradicated species are rabbits (Oryctolagus cuniculus), rats (Rattus spp.), feral cats (Felis catus), and several feral ungulates from smaller islands and fenced natural areas on larger Hawaiian Islands. Vegetation and avifauna have demonstrated dramatic r
Authors
S.C. Hess, J.D. Jacobi
Survey of invasive ants at Hakalau Forest National Wildlife Refuge
We conducted a survey for invasive ants at Hakalau Forest National Wildlife Refuge, Hawai‘i Island, during 2009–2010 to evaluate potential threats to native arthropod communities and food webs. The focal area of the survey was the upper portion of the Hakalau Unit of the refuge, where native forest was being restored in abandoned cattle pastures. This area, between 1575 and 1940 m elevations, cont
Authors
Robert W. Peck, Paul C. Banko
Vegetation assessment of forests of Pagan Island, Commonwealth of the Northern Mariana Islands
As part of the Marianas Expedition Wildlife Surveys-2010, the forest vegetation of the island of Pagan, Commonwealth of the Northern Mariana Islands (CNMI), was sampled with a series of systematic plots along 13 transects established for monitoring forest bird populations. Shrubland and grassland were also sampled in the northern half of the island. Data collected were woody plant density, tree di
Authors
Linda W. Pratt
Weeds of Hawaii’s lands devoted to watershed protection and biodiversity conservation: Role of biological control as the missing piece in an integrated pest management strategy
Despite Hawaii’s reputation as an extinction icon, significant biological resources remain, especially in watersheds, natural areas, and specialized edaphic sites (e.g., lava dry forest, coastal). While direct habitat destruction by humans continues, human-facilitated biological invaders are currently the primary agents of continuing degradation. The ability of invasive plants to have prolific see
Authors
Arthur C. Medeiros, L.L. Loope
From ridge to reef—linking erosion and changing watersheds to impacts on the coral reef ecosystems of Hawai‘i and the Pacific Ocean
Coral reef ecosystems are threatened by unprecedented watershed changes in the United States and worldwide. These ecosystems sustain fishing and tourism industries essential to the economic survival of many communities. Sediment, nutrients, and pollutants from watersheds are increasingly transported to coastal waters, where these contaminants damage corals. Although pollution from watersheds is on
Authors
Jonathan D. Stock, Susan A. Cochran, Michael E. Field, James D. Jacobi, Gordon Tribble
Design of forest bird monitoring for strategic habitat conservation on Kaua'i Island, Hawai'i
This report was commissioned by the U.S. Fish and Wildlife Service (USFWS). The purpose was to develop a monitoring program for Kaua`i forest birds in the USFWS Strategic Habitat Conservation and adaptive management frameworks. Monitoring within those frameworks is a tool to assess resource responses to management and conservation actions, and through an iterative learning process improve our unde
Authors
Richard J. Camp, P. Marcos Gorresen
The Haleakala Argentine ant project: A synthesis of past research and prospects for the future
1. The Haleakala Argentine Ant Project is an ongoing effort to study the ecology of the invasive Argentine ant in the park, and if possible to develop a strategy to control this destructive species. 2. Past research has demonstrated that the Argentine ant causes very significant impacts on native arthropods where it invades, threatening a large portion of the park’s biodiversity in subalpine shrub
Authors
Paul Krushelnycky, William Haines, Lloyd Loope, Ellen Van Gelder