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X-WR-CALNAME:International Initiative for Theoretical Ecology
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X-WR-CALDESC:Events for International Initiative for Theoretical Ecology
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DTSTART;TZID=America/Los_Angeles:20201109T090000
DTEND;TZID=America/Los_Angeles:20201109T100000
DTSTAMP:20261022T223553
CREATED:20200928T180819Z
LAST-MODIFIED:20201019T070319Z
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SUMMARY:Sebastian Schreiber (UC Davis): Towards a general theory of coexistence: Lyapunov exponents\, auxiliary variables\, and Hofbauer's criterion
DESCRIPTION:Warning: this is a Monday! \nAbstract: In the 1980s\, Josef Hofbauer introduced a criterion for mathematically verifying coexistence using per-capita growth rates of species when rare i.e. Lyapunov exponents. This criterion ensures coexistence is robust to large perturbations of  the community state (i.e. permanence) and small structural perturbations of the governing equations (i.e. robust permanence). Originally developed for deterministic models without population structure\, Hofbauer’s criterion has been extended in the past decade to models allowing for auxiliary variables and environmental stochasticity. In this talk\, I review the key ingredients of this theory and illustrate its use in multi-species models with intransitivities\, eco-evolutionary feedbacks\, sexual dimorphisms\, autocorrelated environmental fluctuations\, or spatial structure.  \nZoom link: https://liu-se.zoom.us/j/63158449287 \neventbrite link (for reminders): https://www.eventbrite.co.uk/e/theoretical-ecology-seminar-series-tickets-119884512805 \n 
URL:https://iite.info/event/sebastian-schreiber-uc-davis-general-theorems-for-coexistence-and-extinction-in-stochastic-models/
CATEGORIES:IITE Seminar
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20201124T090000
DTEND;TZID=America/Los_Angeles:20201124T100000
DTSTAMP:20261022T223553
CREATED:20200928T181223Z
LAST-MODIFIED:20201008T143745Z
UID:828-1606208400-1606212000@iite.info
SUMMARY:Stefano Allesina (University of Chicago): A metapopulation model in which patches have memory
DESCRIPTION:Levins’ metapopulation model has been extended in numerous ways. Here we analyze a model in which species have distinct colonization rates that depend on which species previously occupied the patch. We connect this model to the Janzen-Connell hypothesis and show some surprising behavior for a simplified version of the model. \nZoom link: https://liu-se.zoom.us/j/63158449287 \neventbrite link (for reminders): https://www.eventbrite.co.uk/e/theoretical-ecology-seminar-series-tickets-119884512805
URL:https://iite.info/event/stefano-allesina-uc-tbd/
CATEGORIES:IITE Seminar
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