منابع مشابه
Army ants: an evolutionary bestseller?
Army ants are characterized by a complex combination of behavioral and morphological traits. Molecular data now indicate that army ant behavior has a unique evolutionary origin and has been conserved for over more than 100 million years.
متن کاملConvergent Genetic Architecture Underlies Social Organization in Ants
Complex adaptive polymorphisms are common in nature, but what mechanisms maintain the underlying favorable allelic combinations? The convergent evolution of polymorphic social organization in two independent ant species provides a great opportunity to investigate how genomes evolved under parallel selection. Here, we demonstrate that a large, nonrecombining "social chromosome" is associated wit...
متن کاملArmy Ants Trapped by Their Evolutionary History
R eading the French version of Journey to the Ants by Bert Hölldobler and Edward O. Wilson (1996) during the course of my graduate studies, I remember being amazed by the description of circular mills formed by an isolated group of army ants. This phenomenon occurs when a group of foragers is separated from the main column of the raiding swarm by a perturbation of their pheromonal communication...
متن کاملArmy Ants as Research and Collection Tools
Ants that fall prey to the raids of army ants commonly respond by evacuating their nests. This documented behavior has been underexploited by researchers as an efficient research tool. This study focuses on the evacuation response of the southwestern desert ant Aphaenogaster cockerelli André (Hymenoptera: Formicidae) to the army ant Newamyrmex nigrescens Cresson. It is shown that army ants can ...
متن کاملThe Evolution of Extreme Polyandry in Social Insects: Insights from Army Ants
The unique nomadic life-history pattern of army ants (army ant adaptive syndrome), including obligate colony fission and strongly male-biased sex-ratios, makes army ants prone to heavily reduced effective population sizes (Ne). Excessive multiple mating by queens (polyandry) has been suggested to compensate these negative effects by increasing genetic variance in colonies and populations. Howev...
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ژورنال
عنوان ژورنال: Bulletin of the Entomological Society of America
سال: 1972
ISSN: 0013-8754
DOI: 10.1093/besa/18.3.155