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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: 828

Evaluation of Colletotrichum gloeosporioides for biological control of Miconia calvescens in Hawaii Evaluation of Colletotrichum gloeosporioides for biological control of Miconia calvescens in Hawaii

Miconia calvescens (Melastomataceae), from the Neotropics, is a noxious forest weed in Hawaii. We evaluated an isolate of Colletotrichum gloeosporioides that causes leaf spots on Miconia spp. in Brazil for its potential in biological control. Hawaii has no native Melastomataceae genera but does have members of 12 introduced genera.
Authors
E. M. Killgore, L. S. Sugiyama, R. W. Barreto, D.E. Gardner

A test of the variable circular-plot method where exact density of a bird population was known A test of the variable circular-plot method where exact density of a bird population was known

Variable circular-plot (VCP) counts are statistically more sound than point counts because they are adjusted for the probability of detecting birds at different distances and under different conditions. However, many ornithologists use point counts rather than VCP counts because they believe that assumptions of the VCP method are almost always violated, leading to poor results, and...
Authors
Jay T. Nelson, Steven G. Fancy

New island record of Carposina nigronotata Walsingham on Maui New island record of Carposina nigronotata Walsingham on Maui

The following represents a new island record of Carposina nigronotata for Maui. Voucher specimens are housed in the Bishop Museum (BPBM), Honolulu.
Authors
Kim Martz, Forest Starr, Arthur C. Medeiros

New plant records from East Maui for 1998 New plant records from East Maui for 1998

The following contributions include new island records, new naturalized records, a range extension, and a name change of plants located on East Maui, Hawaii. Also included is a map of Maui showing locations of collections discussed in text. Voucher specimens are housed in the Bishop Museum, Honolulu (BISH).
Authors
Forest Starr, Kim Martz, Lloyd L. Loope

Status of the Mariana Crow population on Rota, Mariana Islands Status of the Mariana Crow population on Rota, Mariana Islands

We conducted a survey of the endangered Mariana Crow (Corvus kubaryi) population on Rota, Commonwealth of the Northern Mariana Islands, in October-November 1995 to provide current information on numbers and distribution of this species. To allow direct comparisons with a previous survey, we resurveyed transects established in 1982 using the same field methods and used identical analysis...
Authors
Steven G. Fancy, Michael R. Lusk, Daniel J. Grout

Forest bird and fruit bat populations on Sarigan, Mariana Islands Forest bird and fruit bat populations on Sarigan, Mariana Islands

We conducted the first quantitative surveys of forest bird and bat populations on the uninhabited island of Sarigan, Commonwealth of the Northern Mariana Islands. Severe habitat degradation has occurred on Sarigan because of overgrazing by introduced goats and pigs. Planting of coconut palms (Cocos nucifera) for copra production has also eliminated much of the island’s native forest. We...
Authors
Steven G. Fancy, Robert J. Craig, Curt T. Kessler

An evaluation of the wilt-causing bacterium Ralstonia solanacearum as a potential biological control agent for the alien Kahili ginger (Hedychium gardnerianum) in Hawaiian forests An evaluation of the wilt-causing bacterium Ralstonia solanacearum as a potential biological control agent for the alien Kahili ginger (Hedychium gardnerianum) in Hawaiian forests

Kahili ginger (Hedychium gardnerianum) is an invasive weed in tropical forests in Hawaii and elsewhere. Bacterial wilt caused by the ginger strain of Ralstonia(=Pseudomonas) solanacearum systemically infects edible ginger (Zingiber officinale) and ornamental gingers (Hedychium spp.), causing wilt in infected plants. The suitability of R. solanacearum as a biological control agent for...

Hawaiian Goose (Branta sandvicensis) Hawaiian Goose (Branta sandvicensis)

Evolving in the remote Hawaiian Archipelago and having the smallest range of any living goose, the Hawaiian Goose, or better known by its Hawaiian name—Nënë, is among the most isolated, sedentary, and threatened of waterfowl. The Nënë is also highly terrestrial, and several structural features demonstrate its adaptation to life on islands with limited freshwater habitat: It stands taller...
Authors
Paul C. Banko, Jeffrey M. Black, Winston E. Banko

Eleutherodactylus frog introductions to Hawaii Eleutherodactylus frog introductions to Hawaii

As an oceanic archipelago isolated from continental source areas, Hawaii lacks native terrestrial reptiles and amphibians, Polynesians apparently introduced seven gecko and skink species after discovering the islands approximately 1500 years ago, and another 15 reptiles and five frogs have been introduced in the last century and a half (McKeown 1996). The Polynesian introductions are...
Authors
Fred Kraus, Earl W. Campbell, Allen Allison, Thane K. Pratt

Septoria hodgesii sp. nov.: A potential biocontrol agent for Myrica faya in Hawai‘i Septoria hodgesii sp. nov.: A potential biocontrol agent for Myrica faya in Hawai‘i

Septoria hodgesii sp. nov. is described. This fungus is a common leaf pathogen of Myrica cerifera in the southeastern U.S., where it usually has been identified as S. myricae. It also has been shown by artificial inoculation to be pathogenic on M. faya, an introduced forest weed in Hawai'i. Comparison of S. hodgesii with the types of S. myricae, from M. cerifera and S. myricata, from M...
Authors
Donald E. Gardner

Geohydrology and numerical simulation of the ground-water flow system of Kona, Island of Hawaii Geohydrology and numerical simulation of the ground-water flow system of Kona, Island of Hawaii

Prior to the early 1990's, ground-water in the Kona area, which is in the western part of the island of Hawaii, was withdrawn from wells located within about 3 mi from the coast where water levels were less than 10 feet above sea level. In 1990, exploratory drilling in the uplands east of the existing coastal wells first revealed the presence of high water levels (greater than 40 feet...
Authors
Delwyn S. Oki
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