SKM 2023 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 13: Active Matter III (joint session BP/CPP/DY)
DY 13.4: Vortrag
Dienstag, 28. März 2023, 10:15–10:30, TOE 317
Function of Morphodynamics in Foraging Physarum polycephalum — •Lisa Schick1, Mirna Kramar2, and Karen Alim1 — 1School of Natural Sciences, Technical University of Munich, Germany — 2Institute Curie, Paris, France
How network-forming fungi structure and reorganize their network morphology and thereby the carbon flows in the soil is key to understanding climate - yet hidden from us due to the long time scales of network dynamics and the soil itself. Here, the network-forming slime mold Physarum polycephalum serves as a model of network dynamics of a foraging network-forming life. We follow and quantify the network migration velocity and morphology of foraging P. polycephalum. We identify three distinct morphological states characterized by network compactness and density of moving fronts. Estimating the energetic cost of distinct states, we find that morphological variability allows the organism to balance the energetic costs of foraging and search strategy. Our observations allow us to project how resource availability might shift the balance and thereby affect network extension in foraging network-forming organisms.