Hawaiian Ecosystems at Risk project (HEAR)

Cardiocondyla obscurior
(Formicidae)

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HEAR CLOSING      HEAR CLOSING      HEAR CLOSING

A message from Dr. David Duffy, Pacific Cooperative Studies Unit (PCSU), University of Hawaii (posted 05 November 2012):

Because of a lack of funds, HEAR (www.hear.org) may close as soon as December 15, although there may be enough funds to extend it until February 15. This will mean several things. The web site will be placed on a new server although it is not clear who will pay for the server or for transitioning the site. HEAR data will not be updated. The Pacific Ecosystems at Risk (PIER) (http://www.hear.org/pier/abtproj.htm) site will also become frozen, as will numerous books, reports and papers (http://www.hear.org/). As software evolves we will likely lose the ability to access the data. The various list servers will need new owners, otherwise moderated lists will cease to function altogether, while other lists will not be able to add or delete members. The photo collection (http://www.hear.org/starr/images/?o=plants) will remain accessible, but only through a third party site that will charge for access.

I should point out that we have already lost the original homes of both the Pacific Basin Information Node (PBIN) and Pacific Ecosystems at Risk (PIER) although they have found temporary refuges. Together with HEAR, they represent the corporate memory both here in Hawaii and across the Pacific of efforts to sustain our natural ecosystems and agriculture against problems caused by species alien to the islands. HEAR also serves as the glue that holds the community together, providing information and facilitating communication. I just hope hindsight is kind to this decision.

PLEASE SEND YOUR COMMENTS/SUGGESTIONS TO webmaster@hear.org

Let us know if you have suggestions for additional references to add to this page.


Species description or overview

Cardiocondyla obscurior, widespread tropical ant
Photos and description of Cardiocondyla obscurior, a cosmopolitan tropical ant, are presented.

Stealthy invaders: the biology of Cardiocondyla tramp ants
Cardiocondyla are often not recognized as successful invaders, but this paper shows the life history of Cardiocondyla closely resembles that of the more conspicuous tramp species, with polygyny, intranidal mating, budding, worker sterility, low genetic variability, and possibly also unicoloniality (abstract with link to full paper).


Taxonomy & nomenclature

Cardiocondyla obscurior information from ITIS
The Integrated Taxonomic Information System ITIS provides authoritative taxonomic information on Cardiocondyla obscurior, as well as other plants, animals, fungi, and microbes of North America and the world.


Identification

Key to ant species in Hawaii
13 physical characteristics are the basis of this computer-assisted key for identifying the 48 species of ants in Hawaii.

AntWeb field guide to the ant species of Hawaii View info about Adobe Acrobat PDF format
Images of 20 of the ant species of Hawaii help to identify the species.


Prevention

Change in Quarantine Action Policy for Ants Intercepted from Commodities Destined to the State of Hawaii
A policy change regarding quarantine action for ants intercepted from commodities in Hawaii is detailed here. The revised policy went into effect 10 April 2002.


Images

Cardiocondyla obscurior, widespread tropical ant
Photos and description of Cardiocondyla obscurior, a cosmopolitan tropical ant, are presented.

Cardiocondyla obscurior information from AntWeb
AntWeb provides images of the ant Cardiocondyla obscurior, along with distribution information for Hawaii.


Distribution

Exotic ants in the Canary Islands View info about Adobe Acrobat PDF format
Exotic ants for the Canary Islands are examined, with 12 species identified, based on recent collections and revision of preserved material and published lists (Vieraea, 2003).


Full-text articles

Environmental determination of the male morph in the ant Cardiocondyla obscurior View info about Adobe Acrobat PDF format
Temperature was one of the leading environmental determinants of male dimorphism in Cardiocondyla obscurior (European J. Entomology, 2007).

Alternative reproductive tactics and their consequences in the ant genus Cardiocondyla (PhD thesis) View info about Adobe Acrobat PDF format
The alternative reproductive tactics, including male and female dimorphism, contribute to success of the Cardiocondyla group.


Discussion forums

Pacific Ant Group e-mail list (PAG-L@HAWAII.EDU)
The Pacific Ant Group discussion forum facilitates communication toward preventing establishment of Red Imported fire ant and other invasive ants on Pacific islands.


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The Hawaiian Ecosystems at Risk project (HEAR) is currently funded by grants from the Hau'oli Mau Loa Foundation and the U.S. Forest Service with support from PCSU (UH Manoa). Historically, HEAR has also received funding and/or support from the Pacific Basin Information Node (PBIN) of the National Biological Information Infrastructure (NBII), PIERC (USGS), the USFWS, HCSU (UH Hilo), and HALE (NPS).

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