New publication: Continent-Wide Drivers of Spatial Synchrony in Breeding Demographic Structure Across Wild Great Tit Populations. #parusmajor #demography #mastseeding #agestructure #populationdynamics
https://doi.org/10.1111/ele.70079

The second paper of January 2025 in Computo, by Daphné Giorgi, Sarah Kaakai and Vincent Lemaire, introduces the R package IBMPopSim, which facilitates the simulation of the random evolution of heterogeneous populations using stochastic Individual-Based Models (IBMs).

The package relies on a unified mathematical framework, based on thinning of Poisson measures, for the simulation of IBMs where individuals are represented by their birth date, death date (+∞ if none), and a collection of features. It uses Rcpp for efficiency.

The paper introduces this mathematical framework, gives a detailed overview of the IBMPopSim package, and illustrates it on two use cases, one from actuarial sciences and the other from population genetics.

On this last example, the authors show that their randomized algorithm is one or two orders of magnitudes faster than the full algorithm.

The paper is available with (of course) R code at: https://doi.org/10.57750/sfxn-1t05

#populationDynamics #openScience #openAccess #openSource #Rstats

Now available ahead of print! "Shifting Precipitation Regimes Influence Optimal Germination Strategies and Population Dynamics in Bet-Hedging Desert Annuals" by Cuello et al. https://www.journals.uchicago.edu/doi/10.1086/733105

#precipitation #germination #population #desert #populationDynamics

Today's @mathonco seminar by Simon Syga who described two different #MathOnco projects in collaboration with Andreas Deutsch. #ABM to study #populationdynamics in #cancer and the role of motility

📢In 2021, @MPIDR hosted a global conference on "Pandemic Babies? The Covid-19 pandemic and its impact on fertility and family dynamics." Recently, the special issue of Population and Development Review, based on this conference, has been published!

Explore the open-access papers on how the pandemic shaped fertility, partnerships, and family dynamics, co-funded by MPIDR and the Population Council.

https://www.demogr.mpg.de/en/news_events_6123/news_press_releases_4630/news/_pandemic_babies_the_covid_19_pandemic_and_its_impact_on_fertility_and_family_dynamics_published_13383

#PopulationDynamics #OpenAccess #Fertility #Covid19 #Demography #Family

This #tutorial explores the oscillatory #PopulationDynamics of generalized #IntegrateAndFire (GIF) neurons simulated with #NESTSimulator. The GIF #NeuronModel is a biophysically detailed model that captures the essential features of spiking neurons, including #SpikeFrequencyAdaptation and #DynamicThreshold behavior:

🌍 https://www.fabriziomusacchio.com/blog/2024-07-14-oscillating_gif_neuron_population/

#ComputationalNeuroscience #Python #Neuroscience

New publication: Sea-level rise causes #shorebird population collapse before habitats drown. #behaviouralecology #climatechange #conservationbiology #ecologicalmodelling #populationdynamics
https://doi.org/10.1038/s41558-024-02051-w

Chimento and Aplin illustrate how introducing new learners can push culture in a positive direction using simulation models. They highlight a critical interaction between immigration and learning for cultural change, especially in behaviorally conservative species. Read more! https://www.journals.uchicago.edu/doi/10.1086/730110

#socialLearning #culturalEvolution #populationDynamics #reinforcementLearning

Chimento and Aplin illustrate how introducing new learners can push culture in a positive direction using simulation models. They highlight a critical interaction between immigration and learning for cultural change, especially in behaviorally conservative species. Read more! https://www.journals.uchicago.edu/doi/10.1086/730110

#socialLearning #culturalEvolution #populationDynamics #reinforcementLearning

Now available Ahead of Print! "Population Dynamic Consequences of Context-Dependent Trade-Offs across Life Histories" by Louis Bliard, Maria Paniw, Dylan Z. Childs, and Arpat Ozgul: https://www.journals.uchicago.edu/doi/10.1086/730111

#populationDynamics #lifehistory #heterogeneity #covariation #tradeoffs

IHME Population Mapping [with Trevor Noah]
--
https://youtu.be/4y2xrlqx6z8?si=d9MIb5XZ05xeFAaq <-- link to video
--
#GIS #spatial #mapping #ai #artificialintelligence #foodsecurity #watersecurity #global #trevornoah #crisismanagement #demographics #demography #updates #population #populationhealthmanagement #remotesensing #satellite #machinelearning #healthmetrics #metrics #publichealth #climatechange #spatialanalysis #spatiotemporal #model #modeling #sustainable #populationdynamics #wellbeing #imhe #populationmapping

Since September, I've embarked on a permanent position at SCIMABIO-Interface. Excited to apply #PopulationDynamics #BehaviouralEcology & #BayesianStatistics to engage w. managers & stakeholders. Science-Policy Interface is essential for effective #Fish #Conservation! 🐟

https://www.scimabio-interface.fr

New NIOO publication: Detecting climate signals cascading through levels of biological organization. #climatechangeecology #ecologicalmodelling #populationdynamics #climatechange
https://doi.org/10.1038/s41558-023-01760-y

Why Do They *Think* That?
@joffir

Everything you look for
and all that you perceive
has a way of proving
whatever you believe.

As humans, we need our groups – they define us and we’d be lost without them – but they sometimes lead us to engage in harmful activity that we wouldn’t otherwise do, and to denounce those who won’t leap off those cliffs with us.

Essays You Don't Want To Read
https://essaysyoudidntwanttoread.home.blog/author/thejaberwock42/

#belief #PopulationDynamics #Pandemic #ClimateChange

https://essaysyoudidntwanttoread.home.blog/2022/10/09/why-do-they-think-that/

The new issue (n° 12) of #ComplexityThoughts is out!

https://manlius.substack.com/p/complexity-thoughts-issue-12

#NetworkScience #ClimateChange #NetworkNeuroscience #Epidemics #PopulationDynamics

_________

Do you find it useful and you are not yet subscribed? Join hundreds: it's free, check it out or recommend it to a friend: https://manlius.substack.com/

@networkscience@a.gup.pe @complexsystems @DecisionNeuroscience

Our latest paper out in Ecology and Evolution:

‘Logistic-growth models measuring density feedback are sensitive to population declines, but not fluctuating carrying capacity’

https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.10010

#densitydependence #populationdynamics #populationecology #ecology #ecologicalmodelling

Super interesting paper that analayzes one of the #LTEE populations that evolved stably coexisting #ecotypes from Joao Ascensao, Kelly Wetmore, Ben Good, Adam Arkin & Oskar Hallatschek. https://www.nature.com/articles/s41467-022-35677-5
#Microbiology #Evolution #ExperimentalEvolution #EcoEvo #popgen #PopulationDynamics #Genomics

"While we know that population busts in early farming societies were a frequent occurrence, we don’t yet know whether such cycles were universal, or whether there were periods and places when population levels stabilized for long periods of time."
#PopulationDynamics #History #Cliodynamics
https://peterturchin.com/cliodynamica/the-collapse-of-simple-societies/

#AdaptiveDynamics studying #Evolution in the context of #PopulationDynamics. When I worked on it I called it #EvolutionaryDynamics but adaptive dynamics is the name that has stuck. Diagram shows the adaptive dynamics of coevolving predator and prey where no stable #EvolutionaryStableStrategy can be reached. From https://www.researchgate.net/publication/2708645_Evolutionary_Dynamics_of_Predator-
Prey_Systems_An_Ecological_Perspective
This was the early days for what has been done since see https://www.mv.helsinki.fi/home/kisdi/addyn.htm

It’s been many years since I’ve been to #Antarctica, but projects B031 & B200 continue to collect long term data on the ecology of #AdéliePenguins, #populationdynamics, #foragingbehavior, and #climatechange. Project people are now in the field and ready for a new season, with new GPS/Sat/dive tags ready to go. Here is a 2021 paper from our team: https://www.nature.com/articles/s41598-021-02451-4? Pics: Adélies on sea ice (©️Viola Toniolo), graphic of a weighbridge foraging cycle, new tags.