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DTSTART:20241027T030000
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UID:calendar.103922.field_date.0@www.iast.fr
DTSTAMP:20260518T060035Z
CREATED:20240704T122001Z
DESCRIPTION:Charles Mullon (University of  Lausanne)\, “Natural selection o
 n environmentally-mediated social behaviours under ecological inheritance”
 \, IAST General Seminar\, Toulouse: IAST\, March 25\, 2025\, 11:30–12:30\,
  room Auditorium 4 (First floor - TSE Building).\n\nOrganisms continually 
 modify their environments in ways that influence the fitness of conspecifi
 cs. Such environmentally mediated social behaviours can have lasting effec
 ts across generations through ecological inheritance. In this talk\, I’ll 
 review theoretical insights into how natural selection can shape the evolu
 tion of these behaviours\, focusing on negative frequency-dependent select
 ion—a key mechanism that maintains variation by favouring rare types. Usin
 g invasion analyses\, we’ve shown that when ecological inheritance is comb
 ined with limited dispersal\, environmentally mediated social dilemmas oft
 en lead to the long-term coexistence of two behavioural types: environment
 al helpers\, who invest in improving their surroundings at a personal cost
 \, and environmental free-riders\, who benefit without contributing. In tu
 rn\, this polymorphism generates enduring spatial heterogeneity in environ
 mental quality\, particularly under isolation-by-distance\, where clusters
  of high- and low-quality habitats emerge and persist over time. These fin
 dings highlight how ecological inheritance\, coupled with movement constra
 ints\, can stabilise variation in social traits and contribute to long-ter
 m environmental patterns.
DTSTART;TZID=Europe/Paris:20250325T113000
DTEND;TZID=Europe/Paris:20250325T123000
LAST-MODIFIED:20260423T002001Z
LOCATION:Toulouse: IAST\, March 25\, 2025\, 11:30–12:30\, room Auditorium 4
  (First floor - TSE Building)
SUMMARY:IAST General Seminar
URL;TYPE=URI:https://www.iast.fr/seminars/2025-natural-selection-environmen
 tally-mediated-social-behaviours-under-ecological-inheritance
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