Publications
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Diet composition of the invasive cane toad (Chaunus marinus) on Rota, Northern Mariana Islands
The cane or marine toad (Chaunus marinus, formerly Bufo marinus) was introduced to the Northern Mariana Islands starting in the 1930s. The effects of this exotic predator on native vertebrates (especially lizards) are largely unknown. We analysed the stomach contents of 336 cane toads collected from the island of Rota, with the goal of estimating the level of toad predation on native vertebrates.
Authors
R.N. Reed, K.A. Bakkegard, G.E. Desy, S.M. Plentovich
Evidence of feline immunodeficiency virus, feline leukemia virus, and Toxoplasma gondii in feral cats on Mauna Kea, Hawaii
We determined prevalence to feline immunodeficiency virus (FIV) antibodies, feline leukemia virus (FeLV) antigen, and Toxoplasma gondii antibodies in feral cats (Felis catus) on Mauna Kea Hawaii from April 2002 to May 2004. Six of 68 (8.8%) and 11 of 68 (16.2%) cats were antibody positive to FIV and antigen positive for FeLV, respectively; 25 of 67 (37.3%) cats were seropositive to T. gondii. Anti
Authors
R.M. Danner, Dan M. Goltz, S.C. Hess, P.C. Banko
Diet of feral cats in Hawai'i Volcanoes National Park
We documented the diet of feral cats by analysing the contents of 42 digestive tracts from Kilauea and Mauna Loa in Hawai'i Volcanoes National Park. Small mammals, invertebrates, and birds were the most common prey types consumed by feral cats. Birds occurred in 27.8-29.2% of digestive tracts. The total number of bird, small mammal, and invertebrate prey differed between Kilauea and Mauna Loa. On
Authors
S.C. Hess, H. Hansen, D. Nelson, R. Swift, P.C. Banko
Infectious Diseases of Wild Birds
No abstract available.
Authors
N. J. Thomas, D. Bruce Hunter, C. T. Atkinson
Forest Bird Distribution, Density and Trends in the Ka'u Region of Hawai'i Island
An accurate and current measure of population status and trend is necessary for conservation and management efforts. Scott and Kepler (1985) provided a comprehensive review of the status of native Hawaiian birds based on the extensive Hawaii Forest Bird Survey (HFBS) of the main islands (Scott et al. 1986). At that time, they documented declining populations and decreasing ranges for most species,
Authors
P. Marcos Gorresen, Richard J. Camp, Thane K. Pratt
Efficacy of feral pig removals at Hakalau Forest National Wildlife Refuge
We compiled and analyzed data from 1987–2004 on feral pig (Sus scrofa) management and monitoring activities at Hakalau Forest National Wildlife Refuge, a tropical montane rainforest on the island of Hawai`i. These data included annual surveys of feral pig and cattle (Bos taurus) activity, the number of feral ungulates removed from closed management units, age and reproductive status from necropsie
Authors
Steven C. Hess, John J. Jeffrey, Donna Ball, Lev Babich
Long-term population monitoring: Lessons learned from an endangered passerine in Hawai‘i
Obtaining reliable population estimates is crucial to monitoring endangered species and developing recovery strategies. The palila (Loxioides bailleui) is an endangered seed-eating Hawaiian honeycreeper restricted to the subalpine forests of Mauna Kea, a volcano on the island of Hawai‘i, USA. The species is vulnerable to extinction primarily because >90% of the population is concentrated in <30 km
Authors
Luanne Johnson, Richard J. Camp, Kevin W. Brinck, Paul C. Banko
Final integrated trip report: site visits to Area 50, Andersen Air Force Base, Guam National Wildlife Refuge, War in the Pacific National Historical Park, Guam, Rota and Saipan, CNMI, 2004-2005
Limestone forests are the most diverse natural plant communities of Guam. Like other natural vegetation types, these forests have a long history of anthropogenic disturbances, being altered and shaped by humans for more than 4,000 years. Although this occupation represents a relatively long human influence in comparison to other Pacific islands, animals associated with humans, such as commensal ro
Authors
Steven C. Hess, Linda W. Pratt
A preliminary assessment of mouflon abundance at the Kahuku Unit of Hawaii Volcanoes National Park
Hawaii Volcanoes National Park (HAVO) recently acquired the 115,653 acre Kahuku Ranch unit adjacent to the existing Mauna Loa section of HAVO. Kahuku contains numerous exceptional natural resources including many federally listed threatened and endangered species. An apparently large and growing population of alien mouflon sheep (Ovis gmelini musimon), however, threatens sensitive native plants an
Authors
Steven C. Hess, Ben Kawakami, David Okita, Keola Medeiros
Food specialization and radiation of Hawaiian honeycreepers
Hawaiian honeycreepers are renowned for adaptive radiation and diet specialization. Specialization arose from competition for the relatively few resources available in this remote archipelago and because arthropod prey sufficient to satisfy nestling protein requirements could only be captured by highly modified bills. Historically, most species fed their nestlings with larvae of the widespread geo
Authors
Paul C. Banko, Winston E. Banko
Restoration of Native Hawaiian Dryland Forest at Auwahi, Maui
BACKGROUND
The powerful volcanoes that formed the high islands of the Hawaiian archipelago block northeasterly tradewinds, creating wet, windward rain forests and much drier, leeward forests. Dryland forests in Hawai'i receive only about 20 inches of rain a year. However, the trees in these forests intercept fog and increase ground moisture levels, thereby enabling these seemingly inhospitable
Authors
Arthur C. Medieros, Erica vonAllmen
Genetic analyses of captive Alala (Corvus hawaiiensis) using AFLP analyses
Population level studies of genetic diversity can provide information about population structure, individual genetic distinctiveness and former population size. They are especially important for rare and threatened species like the Alala, where they can be used to assess extinction risks and evolutionary potential. In an ideal situation multiple methods should be used to detect variation, and thes
Authors
Susan I. Jarvi, Kiara R. Bianchi