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Modern Concepts & Developments in Agronomy

How can Blue and White Light Pulses Stimulate Atta Cephalotes in Trails Below Fruit Trees?

  • Open or CloseFederico Hahn Schlam1* and Claudia Bolaños Sánchez2

    1Irrigation Department, Universidad Autónoma Chapingo, Carr Km. 38.5, Carretera México- Texcoco, C.P. 56230, Chapingo, México

    2IAUIA, Universidad Autónoma Chapingo, Km. 38.5, Carretera México-Texcoco, C.P.56230, Chapingo, México

    *Corresponding author: Federico Hahn Schlam, 1Irrigation Department, Universidad Autónoma Chapingo, Carr Km. 38.5, Carretera México-Texcoco, C.P. 56230, Chapingo, México

Submission: November 16, 2021;Published: December 16, 2021

DOI: 10.31031/MCDA.2021.09.000725

ISSN: 2637-7659
Volume9 Issue5


Leaf-cutter ants (Atta cephalotes) forage for leaves, buds and flowers on mango trees. Ants transport these food resources to their nest using the trails they have set up. An artificial trail with laserphototransistor units was used to measure ant activity and speed. An embedded system based on the SAM21 microcontroller-controlled illumination intensity and measured ant speed. Continuous and pulsed light using L300 LED linear arrays were applied to the trail to study ant stimulation. Under continuous nocturnal light changes, ants walking speed remained constant, unless their leader moved quicker. It was found that blue light at different intensities did not affected ant’s speed. Ants collided with pulsed illumination (7 on- 7-off) even during the day, when it was scattered through natural illumination. With the help of mirror inserted in the trail to focus light pulses to the ant eyes, ant collisions increased to 23%.

Keywords: Illumination control; Atta cephalotes; Ant speed counting; Artificial trail; Ant collisions

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