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#ComputationalEcology

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Public
Dr. Korinna Allhoff

🚨 We are hiring! 🚨

The first of two job postings for a in is now online. It will be part of a larger, interdisciplinary DFG project that investigates fitness consequences of biotic interactions in various systems. Please boost!

shorturl.at/akqHP




@ecoevojobs
@phdstudents

www.uni-hohenheim.deJob vacancies: University of HohenheimCurrent job opportunities at the University of Hohenheim
Public
Dr. Korinna Allhoff

It’s definitely my favourite time of the academic year when my students start building their own individual-based models. This year’s assignment is to build a little forest ecosystems and to study how tree-liana interaction networks affect system stability. More precisely, we ask wether and how different network structures affect network resilience. Oh, I can’t wait to see the final results in about 3 weeks time… 🤩

Public
Dr. Korinna Allhoff

Dear fellow modellers, I'm looking for inspiration for my course. Anyone interested in exchanging ideas?

Each participant is supposed to build their own individual-based model towards the end of the semester. Last year's project was about indirect evolutionary rescue and the year before was about the intermediate disturbance hypothesis. I want to come up with a new challenge so things don't get boring. Something would be perfect but I feel stuck...

Screenshot of screenshots showing 18 colourful NetLogo models.
Public
Dr. Korinna Allhoff

I need help!

Do you use an / in your research?
I teach an online course on for BSc students and I am looking for 1 or 2 folks as invited guests. Something about would be great, but there are no hard restrictions concerning topics. I aim at organising an online minisymposium on December 20th that will take place during class, that is between 8:30 and 10:00 am German time.

Please boost and/or contact me in case you are interested!

Screenshot of a NetLogo world showing an individual-based model in action. Dark pixels on the left represent already burnt trees. Red pixels in the middle represent currently burning trees. Green pixels on the right indicate healthy trees that might get burnt very soon.
Public
Dr. Korinna Allhoff

🚨 Paper published! 🚨

Our story on joint interaction disinvestment of - systems in response to was accepted at Evolutionary Ecology and is now available online:

doi.org/10.1007/s10682-023-102

I hope you enjoy reading it!





SpringerLinkEco-evolutionary dynamics in two-species mutualistic systems: one-sided population decline triggers joint interaction disinvestment - Evolutionary EcologyThe interplay between ecological and evolutionary dynamics can create feedback that reinforces external disturbances and potentially threatens species’ coexistence. For example, plants might invest less into attracting insect pollinators (decreased flower or nectar production) and more into independence (increased selfing or vegetative reproduction) when faced with pollinator decline. This adaptive response saves plant resources at the cost of further threatening the pollinator population. We ask under which conditions such self-reinforcing feedback occurs in two-species mutualistic systems when considering one-sided population decline and whether it can be counteracted by self-dampening feedback if co-evolution of both interaction partners is considered. Based on a mathematical model and in line with previous studies, we find that the described pattern of accelerated population decline occurs for a wide range of parameter values if a concave allocation trade-off between independent growth and interaction investment is assumed. The undisturbed population typically disinvests first, which then forces the declining population to also disinvest, in favour of other energy sources. However, a decelerated population decline can occur if the adaptation of the undisturbed partner is relatively slow compared to environmental decay, reducing the speed of its disinvestment, or if the initial investment into the interaction was very high. Our results suggest that if actions are taken to save endangered populations, not only the evolution of the target species but also of their interaction partner, as well as the interaction between them should be considered.
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Public
Dr. Korinna Allhoff

And off we go! The first session of our on is going to start in a few minutes! We will talk about , , , , , and a lot more.

Today’s speaker line-up: @JordanChetcuti, Paola Carillo-Bustamante, @senay, @VeraVinken and @iplanass.

Live-toots in the 🧵 below!

#ComputationalEcology#EcologicalModelling#TheoreticalEcology
Public
Dr. Korinna Allhoff

Do you (want to) use in your research?

We organize a on Dec 14/16, 8:15-10 am German time, as part of my course. Nine international researchers will talk about why they started modelling and how computer simulations help them to address their research questions.

I will try to live-toot the event, but you are also welcome to join. Just text me for the zoom link! Everyone welcome! 😀


Snapshot of an individual-based computer simulation model. Visible are different buttons and sliders next to the so-called world, in which colonies of bryozoa compete for space.
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