Publications
Filter Total Items: 506
Limiting factors of four rare plant species in `Ōla`A Forest of Hawai'i Volcanoes National Park
Three endangered or candidate endangered plant species native to `Ōla`a Forest (Cyrtandra giffardii, ha`iwale; Phyllostegia floribunda, a mint with no common name; and Sicyos alba, `ānunu) were studied for more than 2 years to determine their stand structures, short-term mortality rates, patterns of reproductive phenology, success of fruit production, seed germination rates in the greenhouse, pres
Authors
Joshua R. VanDeMark, Linda W. Pratt, Melody Euaparadorn
Survival of feral cats, Felis catus (Carnivora: Felidae), on Mauna Kea, Hawai'i, based on tooth cementum lines
Feral cats (Felis catus) have spread throughout anthropogenic and insular environments of the world. They now threaten many species of native wildlife with chronic depredation. Knowledge of feral cat population dynamics is necessary to understand their ecological effects and to develop effective control strategies. However, there are few studies worldwide regarding annual or lifetime survival rate
Authors
Raymond M. Danner, Chris Farmer, Steven C. Hess, Robert M. Stephens, Paul C. Banko
Changes in prevalence of avian malaria on the Alakai`i Plateau, Kaua`i. Hawai`i
We determined prevalence of malarial infections in samples of native and non-native forest birds that were sampled at three locations on the Alaka`i Plateau between 1994-1997 and again between 2007-2009. The three sites spanned the elevational range of the plateau and were located at Kawaikōī Stream (1100 m), the upper drainage of Mōhihi Stream (1250 m) and the vicinity of Halepa`akai Stream near
Authors
Carter T. Atkinson, Ruth B. Utzurrum
A summary of information on the rust Puccinia psidii Winter (guava rust) with emphasis on means to prevent introduction of additional strains to Hawaii
The neotropical rust fungus Puccinia psidii(P. psidii) was originally described from the host common guava in its native Brazil but has been found since on hosts throughout the myrtle family (Myrtaceae), including a dramatic host jump to nonnative Eucalyptus plantations. Most rust fungi are able to live only on a very narrow range of host species. P. psidii is unusual both for having a broad host
Authors
Lloyd Loope
Taqman Real-Time PCR Detects Avipoxvirus DNA in Blood of Hawaìi `Amakihi (Hemignathus virens)
Background
Avipoxvirus sp. is a significant threat to endemic bird populations on several groups of islands worldwide, including Hawaìi, the Galapagos Islands, and the Canary Islands. Accurate identification and genotyping of Avipoxvirus is critical to the study of this disease and how it interacts with other pathogens, but currently available methods rely on invasive sampling of pox-like lesions
Authors
Margaret E.M. Farias, Dennis LaPointe, C. T. Atkinson, Christopher Czerwonka, Rajesh Shrestha, Susan I. Jarvi
Limiting factors of five rare plant species in mesic forests of Hawai`i Volcanoes National Park
Five rare or endangered plant species native to Kīpuka Puaulu and Kīpuka Kī were studied for two years to determine their stand structure, patterns of reproductive phenology, success of fruit production, potential pollinators, greenhouse seed germination rates, presence of soil seed banks, impacts of seed-predating rats, seed predation by insects, seedling predation by Kalij pheasant (Lophura leuc
Authors
Linda W. Pratt, Joshua R. VanDeMark, Melody Euaparadorn
Avian botulism: a case study in translocated endangered Laysan ducks (Anas laysanensis) on Midway Atoll
Laysan Ducks are endemic to the Hawaiian archipelago and are one of the world’s most endangered waterfowl. For 150 yr, Laysan Ducks were restricted to an estimated 4 km2 of land on Laysan Island in the northwestern Hawaiian Islands. In 2004 and 2005, 42 Laysan Ducks were translocated to Midway Atoll, and the population increased to approximately 200 by 2007. In August 2008, mortality due to botuli
Authors
Thierry M. Work, John L. Klavitter, Michelle H. Reynolds, David S. Blehert
Integrating physiology, population dynamics and climate to make multi-scale predictions for the spread of an invasive insect: The Argentine ant at Haleakala National Park, Hawaii
Mechanistic models for predicting species’ distribution patterns present particular advantages and challenges relative to models developed from statistical correlations between distribution and climate. They can be especially useful for predicting the range of invasive species whose distribution has not yet reached equilibrium. Here, we illustrate how a physiological model of development for th
Authors
Stephen Hartley, Paul D. Krushelnycky, Philip J. Lester
Persistence of the spotless crake (Porzana tabuensis) on Ta'u, American Samoa
No abstract available.
Authors
Gregory H. Adler, Avele Lalogafu'afu'a, Joshua O. Seamon, Rory West, Siaifoi Fa'aumu, Carter T. Atkinson
Status and trends of native birds in the Keauhou and Kilauea forest, Hawai`i Island
A Safe Harbor Agreement (SHA) is a voluntary arrangement between the U.S. Fish and Wildlife Service and non-Federal landowners to promote the protection, conservation, and recovery of listed species without imposing further land use restrictions on the landowners. Kamehameha Schools is considering entering into a SHA for their Keauhou and Kīlauea Forest lands on the island of Hawai′i. Bird surveys
Authors
Richard J. Camp, James D. Jacobi, Thane K. Pratt, P. Marcos Gorresen, Tanya Rubenstein
Can lowland dry forests represent a refuge from avian malaria for native Hawaiian birds?
Hawaii's native birds have become increasingly threatened over the past century. Introduced mosquito borne diseases such as avian malaria may be responsible for the near absence of endemic Hawaiian forest birds in low-elevation habitats. The recent recognition that some native Hawaiian forest birds may be repopulating moist lowland habitats as a result of evolved resistance to this disease has inc
Authors
Katherine Tucker-Mohl, Patrick Hart, Carter T. Atkinson