Results 1 to 10 of about 115 (79)

Behavior of ergatoid males in the ant,Cardiocondyla nuda [PDF]

open access: yesInsectes Sociaux, 1993
Ergatoid males of the ant,Cardiocondyla nuda, attack and frequently kill young males during or shortly after eclosion. Smaller colonies therefore contain typically only one adult male, which may inseminate all alate queens which are reared in the colony over a few weeks.
Jürgen Heinze   +2 more
exaly   +4 more sources

The dynamics of male-male competition in Cardiocondyla obscurior ants [PDF]

open access: yesBMC Ecology, 2012
Background The outcome of male-male competition can be predicted from the relative fighting qualities of the opponents, which often depend on their age.
Cremer Sylvia   +3 more
doaj   +2 more sources

Mating success and potential male-worker conflict in a male-dimorphic ant [PDF]

open access: yesBMC Evolutionary Biology, 2007
Background Males of many species adjust their reproductive tactics with regard to their condition and status. For example, large males may develop weapons and fight for access to females, whereas small or undernourished males do not express costly ...
Darrouzet Eric   +2 more
doaj   +2 more sources

Cardiocondyla pirata sp. n. – a new Philippine ant with enigmatic pigmentation pattern (Hymenoptera, Formicidae) [PDF]

open access: yesZooKeys, 2013
A new species of the ant genus Cardiocondyla Emery, 1869 – Cardiocondyla pirata sp. n. – is described from the Philippines. The species belongs to an Indo-Malayan group of six species that is characterized by workersa strongly bilobate ...
Bernhard Seifert, Sabine Frohschammer
doaj   +2 more sources

Mandible morphology reflects the type of male antagonism in the ant genus Cardiocondyla (Hymenoptera: Formicidae)

open access: yesEuropean Journal of Entomology, 2018
The ant genus Cardiocondyla is characterized by wingless, ergatoid males, which in some species replace the typical winged male. Depending on species, ergatoid males engage in lethal fighting for access to sexual females, establish territories within ...
Christine V. SCHMIDT, Jürgen HEINZE
doaj   +1 more source

Cryptic Lineages in the Cardiocondyla sl. kagutsuchi Terayama (Hymenoptera: Formicidae) Discovered by Phylogenetic and Morphological Approaches

open access: yesSociobiology, 2015
The taxonomy of ant species in the genus Cardiocondyla is very confused due to the extreme difficulty in separating many species based on morphology alone. In Japan, one group of the species complex Cardiocondyla sl.
Ichiro Okita   +2 more
doaj   +1 more source

Polygyny, Inbreeding, and Wingless Males in the Malagasy Ant Cardiocondyla shuckardi Forel (Hymenoptera, Formicidae)

open access: yesSociobiology, 2014
The ant genus Cardiocondyla exhibits a fascinating diversity of its reproductive biology, with winged and wingless males, long-winged and short-winged queens, strict monogyny and facultative polygyny with or without queen fighting.
Jürgen Heinze   +4 more
doaj   +1 more source

Environmental determination of the male morph in the ant Cardiocondyla obscurior (Hymenoptera: Formicidae)

open access: yesEuropean Journal of Entomology, 2007
Cardiocondyla is one of the few ant genera in which winged dispersing males coexist with wingless fighter males, which predominantly mate inside their maternal nests. Male polymorphism is not genetically determined but induced by environmental conditions
Yanyang DU   +2 more
doaj   +1 more source

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