Jonas Wickman
@jonaswickman.bsky.social
300 followers 36 following 8 posts
Theoretical ecologist, postdoc at W.K. Kellogg Biological Station
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Reposted by Jonas Wickman
Does availability of juvenile refuge affect size structure of adults? Uszko et al. show that size of streams used as nurseries impacts growth and size structure of lake trout by controlling the strength of cannibalistic mortality and resource competition.
www.journals.uchicago.edu/doi/10.1086/...
University of Chicago Press Journals: Cookie absent
www.journals.uchicago.edu
Reposted by Jonas Wickman
Happy to share our new paper! We tested how species evolve in response to #competition. We tracked the evolution of 3 #phytoplankton species, evolved alone or together. Our main finding is that #density-dependence weakens through #evolution to increase population production. doi.org/10.1002/ece3...
Evolution Under Competition Increases Population Production by Reducing the Density‐Dependence of Net Energy Fluxes and Growth
Using experimental evolution, we determined the impact of intra- versus interspecific competition on three marine phytoplankton species. We found that the species achieved the same evolutionary outco....
doi.org
We find that even in two highly symmetric models, outcomes are highly idiosyncratic with more available resources sometimes leading to lower evolved consumer diversity for the same trade-off shape. (3/3)
We develop some new tech to deal with high-dimensional resource space, where consumers’ uptake abilities for different resources are traded off against each other. We then assemble communities for different trade-off shapes and dimensionalities, to find when diverse communities evolve. (2/3)
Reposted by Jonas Wickman
📆Join us next Tuesday for our online seminar: Hal Caswell (Woods Hole) will present on:

⭐The formal demography of kinship: Demographic stochasticity in the kinship network⭐

Free for all to join!
Zoom Link: iite.info/seminar/
Global Times: www.timeanddate.com/worldclock/f...

NB Euro time shift!
Reposted by Jonas Wickman
📣Join us next week for the first talk of the year! Virginia Domínguez-García (EBD-CSIC, Seville) will present:

⭐Complex Networks to Understand Persistence in Empirical Plant-Pollinator Communities⭐

Zoom link: iite.info/seminar/
Global Times: www.timeanddate.com/worldclock/f...

See you there!
Reposted by Jonas Wickman
In our latest paper in PNAS, we ask: How can scientific progress be accelerated to meet the urgent challenges of the Anthropocene? We point to significant barriers in forecasting & prediction efforts for the biosphere 🧵👇 🧪🌎🦋 1/n www.pnas.org/doi/10.1073/...
#ScienceTwitter #Ecology #Anthropocene
Reposted by Jonas Wickman
Check out our new paper - Life history scaling in a tropical forest. Body size scaling & life history variation drive community structure & dynamics. Using a scaling framework, we quantify how abundance, richness, productivity & environmental variation link across life history strategies 1/n.... 🧪
Reposted by Jonas Wickman
IITE webinar
Anuraag Bukkuri (Moffit Cancer Center):
The Polyaneuploid Cancer Cell State and Therapeutic Resistance: Models of State-Structured Populations
2 April, 2024, 9 a.m. Pacific
Zoom: liu-se.zoom.us/j/63158449287
🧪,🌍, #ecoevo
IITE webinar 
Anuraag Bukkuri (Moffit Cancer Center): 
The Polyaneuploid Cancer Cell State and Therapeutic Resistance: Models of State-Structured Populations
2 April, 2024, 9 a.m. Pacific 
Zoom: liu-se.zoom.us/j/63158449287
Reposted by Jonas Wickman
Excited to share our new paper out in Science! We combined simulations, experiments, and field data to show how dispersal simultaneously stabilizes species and genetic diversity, which results in persistent eco-evo dynamics. doi.org/10.1126/scie...
Dispersal stabilizes coupled ecological and evolutionary dynamics in a host-parasitoid system
Experiments and simulations show that dispersal maintains host genetic diversity and promotes host-parasitoid coexistence.
doi.org
Reposted by Jonas Wickman
IITE webinar Axel Rossberg (Queen Mary):
Ecological Structural Instability everywhere
February 20, 2024, 9 a.m. Pacific
liu-se.zoom.us/j/63158449287
🧪,🌍, #ecoevo
IITE webinar
Axel Rossberg (Queen Mary): 
Ecological Structural Instability everywhere 
February 20, 2024, 9 a.m. Pacific
liu-se.zoom.us/j/63158449287
Our work ties scalings at different levels of organization to one another and to ecological and evolutionary mechanisms. As these scalings have mostly been studied in isolation, our work points the way towards integrated study for testing the interrelation of scalings. 5/5
When parameterized with micro-scaling exponents our model predicts macro-scaling exponents between zooplankton biomass and phytoplankton biomass, and between phytoplankton mean body mass and biomass that agree remarkably well with observed macro scalings. 4/5
We propagate estimates of micro-scaling exponents and their uncertainty through our model predictions into how state variables scale with nutrient enrichment (A). Estimates of micro-scaling exponents from the literature (B). Model-predicted scalings with enrichment (C, D). 3/5
At the individual level, micro scalings relating to cell size determine many traits (F–I). These scaling relationships constrain eco-evolutionary dynamics (E), from which macro-level scaling relationships emerge across environmental gradients (A–D). 2/5
Delighted to announce our new paper in Science. @chrisklausmeier.bsky.social, @elenalitchman.bsky.social, and I show how power-law scaling at the micro (individual) level is translated by eco-evolutionary dynamics into power-law scaling at the macro (food-web) level. 1/5
Eco-evolutionary emergence of macroecological scaling in plankton communities
Eco-evolutionary dynamics informed by allometric scaling can predict large-scale patterns across planktonic food webs.
www.science.org