A5024624019- Neurobiology and Insect Physiology Research
- Insect and Arachnid Ecology and Behavior
- Plant and animal studies
- Animal Behavior and Reproduction
- Neural dynamics and brain function
- Visual perception and processing mechanisms
- Insect and Pesticide Research
- Plant and Biological Electrophysiology Studies
University of Buenos Aires
2014-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2025
University of Trento
2021-2024
Fundación Ciencias Exactas y Naturales
2014-2015
ABSTRACT Arthropods are diverse, abundant, successful animals that exploit all available ecological niches. They sense the environment, move, interact with prey/predators/conspecifics, learn, and so forth using small brains five orders of magnitude less neurons than mammals. Hence, these need to be efficient in information processing. One distinct aspect is presence large, easily identifiable single act as functional units for processing integrating a high volume from different sources guide...
Highly active insects and crabs depend on visual motion information for detecting tracking mates, prey, or predators, which they require directional control systems containing internal maps of space. A neural map formed by large, motion-sensitive neurons implicated in processing panoramic flow is known to exist an optic ganglion the fly. However, equivalent spatial positions single objects has not been hitherto identified any arthropod. Crabs can escape directly away from a threat wherever...
Abstract Geosmin is an odorant produced by bacteria in moist soil. It has been found to be extraordinarily relevant some insects, but the reasons for this are not yet fully understood. Here we report first tests of effect geosmin on honey bees. A stinging assay showed that defensive behaviour elicited bee’s alarm pheromone component isoamyl acetate (IAA) strongly suppressed geosmin. Surprisingly, suppression is, however, only present at very low concentrations, and disappears higher...
Animals use binocular information to guide many behaviors. In highly visual arthropods, complex computations involved in processing panoramic optic flow generated during self-motion occur the neuropils. However, extent which of object motion occurs these neuropils remains unknown. We investigated this a crab, where distance between eyes and extensive overlapping their fields advocate for processing. By performing <i>in vivo</i> intracellular recordings from lobula (third neuropil) male...
Abstract In this work, we identified the trail pheromone of ant Crematogaster scutellaris. We combined gas chromatography–mass spectrometry analysis extracts from hind tibia, location respective glands, with automated following assays. The study found tridecan-2-ol to be strongest discriminator between tibia and other body part extracts. Tridecan-2-ol elicited trail-following behaviour at concentrations 1 ng/µL. A separation enantiomers showed responses ( R )-tridecan-2-ol already 0.001...
All animals need information about the direction of motion to be able track trajectory a target (prey, predator, cospecific) or control course navigation. This is provided by selective (DS) neurons, which respond images moving in unique direction. DS neurons have been described numerous species including many arthropods. In these animals, majority studies focused on dedicated processing optic flow generated during contrast, only few were performed related object processing. The crab...
Abstract Geosmin is an odorant produced by bacteria in moist soil. It has been found to be extraordinarily relevant some insects, but the reasons for this are not yet fully understood. Here we report first tests of effect geosmin on honey bees. A stinging assay showed that defensive behaviour elicited bee’s alarm pheromone strongly suppressed geosmin. Surprisingly, suppression is, however, only present at very low concentrations, and completely disappears higher concentrations. We...