Solitary Foraging in the Ancestral South American Ant, Pogonomyrmex vermiculatus. Is it Due to Constraints in the Production or Perception of Trail Pheromones?

  title={Solitary Foraging in the Ancestral South American Ant, Pogonomyrmex vermiculatus. Is it Due to Constraints in the Production or Perception of Trail Pheromones?},
  author={Hugo Torres-Contreras and Ruby Olivares-Donoso and Hermann M. Niemeyer},
  journal={Journal of Chemical Ecology},
Several North American species of Pogonomyrmex harvester ants exhibit group foraging, whereas South American species are exclusively solitary foragers. The composition of the secretions of the poison and Dufour glands in the South American species, Pogonomyrmex vermiculatus, were analyzed, and the secretions and their components were tested as trail pheromones in laboratory bioassays. The major compounds in the poison gland were the alkylpyrazines, 2,5-dimethylpyrazine, 2,3,5-trimethylpyrazine… Expand
Fasting and chemical signals affect recruitment and foraging efficiency in the harvester ant, Pogonomyrmex vermiculatus
The results show that in Pogonomyrmex species, the ancestral character ‘solitary foraging’ shows behavioural plasticity when ants are confronted with trail pheromones stimuli and are under fasting stress. Expand
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The potential use of 2-ethyl-3,5-dimethylpyrazine to enhance bait attractiveness for the control of S. invicta in invaded regions is supported. Expand
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A list of the identity and glandular origin of the chemical compounds found in the trail pheromones of 75 different ant species is compiled, finding that more than 40% are amines. Expand
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It is demonstrated that different foraging strategies are indeed associated with specific spatiotemporal resource attributes, and the general patterns described here can be used as a framework to inform predictions in future studies of ant foraging behavior. Expand
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The results showed that foraging routes are independent of residual soil accumulation and other nearby nests, however, air temperature and the time daily period are significant factors to foragers’ exits. Expand
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Results suggest that Pogonomyrmex occidentalis workers rely on PI to navigate homeward after foraging, but do not follow the home vector indicated by the PI if the panorama has been significantly altered and, therefore, conflicts with the available PI information. Expand
Pyrazine Biosynthesis in Corynebacterium glutamicum
The volatile compounds released by Corynebacterium glutamicum were collected by use of the CLSA technique (closed-loop stripping apparatus) and analysed by GC-MS. The headspace extracts containedExpand
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Insects are considered pests if they threaten a resource that is valued by humans, such as human health, and protection can also be achieved by manipulating a behavior of the pest. Expand
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There was studied effect of female house mouse pheromone 2,5-dimethylpyrasine and other pyrazine-containing substances on the genetic apparatus stability of dividing bone marrow cells of male mice ofExpand
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The world of the harvester ants
The mythology and folklore surrounding the harvester ants of the Southwest and Mexico are considered, including the Aztecs believed that the red harvesters brought corn to humankind and Native Americans of the southwestern deserts invoked special rituals to placate the ants when their mounds were disturbed. Expand
Chemical secretions of two sympatric harvester ants,Pogonomyrmex salinus andMessor lobognathus
A mixture of 9-, 11-, and 13-methylheptacosane formed the largest peak in the chromatograms obtained from the postpharyngeal glands of both species, but otherwise the hydrocarbon mixtures in this gland too were distinct. Expand
Recruitment pheromone in the harvester ant genus Pogonomyrmex.
Three pyrazines are identified as major compounds of the volatile part of the poison-gland secretions of the harvester ant genus Pogonomyrmex, and EDMP is revealed to be the main recruitment pheromone. Expand
Biogeography and community structure of North American seed-harvester ants.
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This review attempts to adjust this paradigm, suggesting that interspecific competition for food is probably less important than previously thought, whereas intraspecific competition is common and strong. Expand
Convergence and historical effects in harvester ant assemblages of Australia, North America, and South America
The overall absence of convergence documented in this study suggests that constraints related to the evolutionary history of each species assemblage have inhibited convergent evolution in response to local selective pressures. Expand
Dufour gland secretion in the harvester ant genus Pogonomyrmex
Dufour gland secretions of the harvester ants Pogonomyrmex barbatus, P. rugosus and P. maricopa exhibit species specific patterns, but based on indiviual profiles of Dufours gland contents of colony members it is possible to separate the colonies from each other in each species. Expand
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This work shows that small colonies forage in a disorganized manner, with a transition to organized pheromone-based foraging in larger colonies, and shows that when food sources are difficult to locate through independent searching, this transition is first-order and exhibits hysteresis. Expand
Preparation of small-scale samples from insect for chromatography
Abstract Techniques are available for the gas chromatography of very small samples of insect pheromones and defensive secretions by which the diluting and contaminating effects of solvents areExpand
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Gas chromatography without solvents
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