Hawaiian Ecosystems at Risk project (HEAR)

Cardiocondyla obscurior
(Formicidae)

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Species description or overview Identification Taxonomy & nomenclature Discussion forums
Prevention Images Distribution Full-text articles

Species description or overview

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

Genus Cardiocondyla overview from Australian Ants Online
This overview of the genus Cardiocondyla includes information on biology, distribution, and habits.

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).

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.

Taxonomy & nomenclature

ITIS nomenclature info for Cardiocondyla obscurior
Nomenclatural information about Cardiocondyla obscurior is provided by ITIS.

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.

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 of the Canaries are reviewed (Vieraea, 2003).

Ants of Samoa (abstract)
The checklist of ants in Samoa has been increased to 68 species, including the first reports of several species (Pacific Science, 2003).

Checklist of the ants of Fiji (Bishop Museum Occasional Papers, 2006). View info about Adobe Acrobat PDF format
This checklist of the ants of Fiji includes 138 currently valid species and subspecies: 91 Fijian endemics, 22 wide-ranging Pacific natives, and 25 exotics.

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

Stealthy invaders: the biology of Cardiocondyla tramp ants View info about Adobe Acrobat PDF format
Cardiocondyla tramp species are characterized by polygyny, intranidal mating, budding, worker sterility, low genetic variability, and possibly unicoloniality, all of which contribute to their success as invaders (Insectes Sociaux, 2006).

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.

Live and let die: why fighter males of the ant Cardiocondyla kill each other but tolerate their winged rivals View info about Adobe Acrobat PDF format
Unusual mating and intraspecies aggression of the Cardiocondyla ants are addressed here (Behavioral Ecology, 2003).

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