Blog Archives

rWind R package released!

December 4, 2016
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rWind R package released!

Hi there!  Let me introduce you rWind, an R package with several tools for downloading, editing and converting wind data from Global Forecast System (https://www.ncdc.noaa.gov/data-access/model-data/model-datasets/global-forcast-system-gfs) in other formats as raster for GIS! Wind data is a powerful source of information that could be used for many purposes in biology and other sciences: from the design of air...

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eWalk, an R function to simulate two-dimensional evolutionary walks

November 2, 2016
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eWalk, an R function to simulate two-dimensional evolutionary walks

Hey there!  During last months, I was thinking with my friend Javi Fajardo (see his work here!) a little bit more about Brownian / OU process and their applications in biology. Remember that an OU model describes a stochastic Markov process that consist of two parts: first, a Brownian motion (random walk) model that...

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eMotion, an R function for evolutionary motion of character values

July 10, 2016
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eMotion, an R function for evolutionary motion of character values

Hi all! Some time ago, I was studying an article from Tamara Münkemüller et al. 2015: "Phylogenetic niche conservatism – common pitfalls and ways forward". It´s a nice study where the ability of current tools in order to identify the evolutionary model that drives the changes in a trait (in this case, an ecological suitability) is discussed. They simulate the evolution...

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nichEvolve documentation and code

June 27, 2016
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nichEvolve documentation and code

Here you have some documentation about the nichEvolve model and a link to download the NetLogo code. I will write soon some practical experiments to test with the model... enjoy!Link:  nichEvolve.nlogo*(Don't you have NetLogo installed in your computer? NetLogo is a nice tool to implement simple agent-based models, and very useful to introduce yourself in the world...

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nichEvolve, a niche evolution model with NetLogo

June 26, 2016
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nichEvolve, a niche evolution model with NetLogo

 During the last year I was reading some articles about niche conservatism/evolution. There are a lot of theories and methodologies to deal with this kind of questions, but sometimes it's hard to understand all this mathematical and theoretical concepts about models of evolution: Brownian motion models, Ornstein-Uhlenbeck processes, etc. Following KISS philosophy (Keep It Simple, Stupid!) I wrote some...

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