Hawaiian Ecosystems at Risk project (HEAR)

Hemignathus virens
(Drepanididae)

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Species description or overview Taxonomy & nomenclature Pests of this species Audio Images
Distribution In the news Full-text articles Abstracts  


Species description or overview

Hawaiian Amakihi - Introduction
An introduction to the amakihi complex is provided by The Birds of North America. Access to other articles require subscription.

Hawaii amakihi information from the Pacific Island Network, National Park Service View info about Adobe Acrobat PDF format
Description, status, inventories, and sightings for the Hawaii amakihi are provided on this "Featured Resource" document from the NPS.

Amakihi interesting facts
Amakihi image and interesting facts are on the RightBird site.

Hawaii Amakihi - Images and overview
Amakihi information and images are provided by the Maui Forest Bird Recovery Project.

Hawaii amakihi overview View info about Adobe Acrobat PDF format
Hemignathus virens species status, biology, distribution, threats, and conservation actions are described by the Hawaii Department of Land and Natural Resources (Hawaii's Comprehensive Wildlife Conservation Strategy, 2005).


Taxonomy & nomenclature

ITIS nomenclature info for Hemignathus virens
Nomenclatural information about Hemignathus virens is provided by ITIS.


Pests of this species

Pathogenicity of avian malaria in experimentally-infected Hawaii Amakihi
Mortality results of infected amakihi indicate current elevational and geographic distribution of Hawaiian honeycreepers is determined by relative susceptibility to avian malaria (J. Wildlife Diseases, 2000).

Serological responses and immunity to superinfection with avian malaria in experimentally-infected Hawaii amakihi
Hawaiian honeycreepers that are capable of recovering from acute infections develop concomitant immunity to superinfection, making them functionally immune in areas where malaria transmission has become endemic (Journal of Wildlife Diseases, 2001).

Knemidokoptic mange in Hawaii Amakihi (Hemignathus virens) on the island of Hawaii
Lesions resembling knemidokoptic mange on the feet and tarsometatarsi of two Hawaii Amakihi were observed while the researchers were mist-netting wild passerines at Manuka Natural Area Reserve on the island of Hawaii (J. Wildlife Disease, 2009).


Audio

Amakihi song (audio)
Amakihi's call can be heard on the East Maui Watershed Partnership site.


Images

Amakihi honeycreeper image
Amakihi image and information about avian malaria are on the USGS Multimedia Gallery.

Amakihi image
Image of a captured amakihi is on Forestry Images.


Distribution

Amakihi distribution
Distribution of Hemignathus virens is from Hawaii's Birds, by Hawaii Audubon Society.


In the news

Amakihi (Hemignathus virens) overview
A brief overview of amakihi and drawings of the bird are on the Hawaii Department of Land and Natural Resources blog.


Full-text articles

Effects of chronic avian malaria (Plasmodium relictum) infection on reproductive success of Hawaii amakihi  View info about Adobe Acrobat PDF format
Chronic malaria infections in amakihi did not significantly reduce reproductive success (The Auk, 2006).

Genetic structure and evolved malaria resistance in Hawaiian honeycreepers
Researchers suggest high disease pressure on amakihi rapidly selected for resistance to malaria at low elevation, leaving small pockets of resistant birds, and this resistance spread outward from the scattered remnant populations (Molecular Ecology, 2007).

The influence of nectar resources on nesting success and movement patterns of the common amakihi (Hemignathus virens)  View info about Adobe Acrobat PDF format
Amakihi is intrinsically tied to the nectar resources available within its breeding territory and a minimum of quantity of nectar must be present before territory establishment will occur (The Auk, 1984).

Alien plant invasions in native ecosystems of Hawaii: Management and research
Stone, Charles P., Clifford W. Smith, and J. Timothy Tunison (eds.) . 1992. Alien plant invasions in native ecosystems of Hawaii: Management and research. Honolulu: University of Hawaii Cooperative National Park Resources Studies Unit. ISBN: 0-8248-1474-6.

Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest
Medeiros, A.C. 2004. Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest. Ph.D. Dissertation, Department of Zoology, University of Hawaii at Manoa, Honolulu.

Pathogenicity of avian malaria in experimentally-infected Hawaii Amakihi
Mortality results of infected amakihi indicate current elevational and geographic distribution of Hawaiian honeycreepers is determined by relative susceptibility to avian malaria (J. Wildlife Diseases, 2000).


Abstracts

Survival and physiologic response of common amakihi and Japanese white-eyes during simulated translocation
Amakihi and white eyes responded to translocation by a combination of weight loss, anemia, hypoproteinemia, and elevated heterophil to lymphocyte ratio, uric acid, and CPK levels (The Condor, 1999).

Altitudinal variations in nests of the Hawaiian honeycreeper Hemignathus virens virens
Temperature, altitude, and precipitation affected the placement and thermal conductance of amakihi nests (The Condor, 1984).

Breeding ecology of the hawaii common amakihi
Six major factors influenced amakihi productivity on Mauna Kea. The two most important were length of the breeding season and clutch size (The Condor, 1987).

Serological responses and immunity to superinfection with avian malaria in experimentally-infected Hawaii amakihi
Hawaiian honeycreepers that are capable of recovering from acute infections develop concomitant immunity to superinfection, making them functionally immune in areas where malaria transmission has become endemic (Journal of Wildlife Diseases, 2001).

Artificial incubation, hand-rearing, behavior, and release of common Amakihi (Hemignathus virens virens): Surrogate research for restoration of endangered Hawaiian forest birds
Techniques necessary to hatch, rear, and release endangered Hawaiian honeycreepers are available; however, restoration efforts will probably not succeed unless mosquito-free, predator-controlled reintroduction sites are available or strategies are developed to decrease mortality in naive honeycreepers exposed to disease after release (Zoo Biology, 1998).


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