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Surface hydrocarbons of queen eggs regulate worker reproduction in a social insect.
Queen-derived hydrocarbon labels inform workers about the presence of a fertile queen and thereby regulate worker reproduction, which induces workers to refrain from reproducing. Expand
Herbivory of Leaf-Cutting Ants: A Case Study on Atta colombica in the Tropical Rainforest of Panama
This book discusses the composition of the Forest, Colony Dynamics, Seed Dispersal by Leaf-Cutting Ants, Nutrient Cycling and Water Relations, and the Trail System. Expand
Eusociality: origin and consequences.
In this new assessment of the empirical evidence, an alternative to the standard model is proposed: group selection is the strong binding force in eusocial evolution; individual selection, the strongExpand
The genome sequence of Blochmannia floridanus: Comparative analysis of reduced genomes
The phylogenetic analysis of a set of conserved protein-coding genes shows that Bl. Expand
The number of queens: An important trait in ant evolution
The discussion of the ecological consequences of polygyny and monogyny leads to a deeper understanding of territoriality, spacing and species packing in ants. Expand
Territorial strategies in ants.
The geometric and behavioral organization of the absolute territories of the African weaver ants and harvester ants, and of the "spatiotemporal territories" of honey ants are described, and simple cost-benefit models are developed to illustrate the economic defensibility of each type of territory. Expand
Are variations in cuticular hydrocarbons of queens and workers a reliable signal of fertility in the ant Harpegnathos saltator?
A striking correlation of ovarian activity with CHC variation and its correspondence with the observed recognition behavior exhibited by the workers toward egg-laying nestmates suggests that CHCs serve as a fertility signal in the ant H. saltator, a reliable basis for regulating reproduction. Expand
Recruitment behavior, home range orientation and territoriality in harvester ants, Pogonomyrmex
The farther away from its nest the intruder is, the less vigorous are the aggressive confrontations with the defenders, and only when neighboring colonies are located too close together will increased aggressive interactions eventually lead to the emigration of the weaker colony. Expand
Morphologic representation of visual and antennal information in the ant brain
Data is presented supporting the view that the mushroom bodies may participate in spatial orientation, landmark recognition, and visual information storage, and the size and manifestation of the eyes generally correlates well with that of the optic lobes. Expand
The rise of the ants: a phylogenetic and ecological explanation.
A history of major ecological adaptations at the subfamily level appears to have been a mid-Cretaceous initial radiation in forest ground litter and soil coincident with the rise of the angiosperms, followed by an expansion of some of the lineages, aided by changes in diet away from dependence on predation, upward into the canopy, and outward into more xeric environments. Expand