Roost Size for Multilevel Selection of Altruism Among Vampire Bats

  • Mario Paolucci
  • Rosaria Conte
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4442)


In this paper we analyse the roosting effect among artificial vampires as a way to preserve altruism from cheaters exploitation. We simulate the formation and maintenance of new social structures (roosts) from initial populations as a consequence of both demographic growth and social organisation. Food-sharing among vampire bats (Desmodus Rotundus) is a well-known form of altruism, necessary for the survival of this species, supported by wide ethological evidence. By means of simulation, we study the performance of the system under varying mutation rate (giving rise to cheaters that exploit the altruistic mechanism) and roost size. Results show that the roosting effect can cope with sensible mutation levels. Moreover, the most robust size of roosts indicated by our simulations is shown to be comparable with the size actually found in nature.


Mutation Rate Living Agent Cheat Behaviour Computational Economic Multilevel Selection 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Mario Paolucci
    • 1
  • Rosaria Conte
    • 1
  1. 1.ISTC-CNR, Via San Martino della Battaglia 44, 00185 RomaItaly

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