https://github.com/seananderson/ecofolio

R package for measuring ecological portfolio effects
https://github.com/seananderson/ecofolio

Last synced: 12 days ago
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R package for measuring ecological portfolio effects

• Host: GitHub
• URL: https://github.com/seananderson/ecofolio
• Owner: seananderson
• Created: 2013-04-17T19:55:22.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2014-12-10T21:38:06.000Z (almost 10 years ago)
• Last Synced: 2024-10-12T01:19:29.928Z (27 days ago)
• Language: R
• Homepage:
• Size: 621 KB
• Stars: 3
• Watchers: 4
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
ecofolio is an R package to estimate ecological portfolio effects. Currently it

focuses on metapopulations or metapopulation-like systems.

A financial portfolio metaphor is often used to describe how population

diversity can make a group of populations more stable, much like how investing

in a diverse set of assets makes a financial portfolio more stable. For

example, we can treat the abundance of salmon in one stream as financial stock

value and the abundance of salmon within a river catchment as a financial

portfolio. If a group of populations are stressed and react differently then

the risk of collapse or decline of the group may be lowered, similar to

a diversified financial portfolio. This risk reduction has been referred to as

the "portfolio effect".

To cite this package please cite the accompanying paper:  

Anderson, S.C., A.B. Cooper, N.K. Dulvy. 2013. Ecological prophets:

Quantifying metapopulation portfolio effects. Methods in Ecology and

Evolution. In Press. doi: 10.1111/2041-210X.12093.

The published version of the paper is available [here](http://dx.doi.org/10.1111/2041-210X.12093). And a pre-print is available [here](http://seananderson.ca/papers/Anderson_etal_2013_ecological_prophets.pdf) [PDF].

You can install ecofolio with the following R code:

```r

# Install these first if needed:

# install.packages(c("plyr", "reshape", "MuMIn", "robustbase", "devtools"))

devtools::install_github("ecofolio", username="seananderson")

```

If you're using Windows then you may need to install

[Rtools](http://cran.r-project.org/bin/windows/Rtools/) first.

You can load the package, read the vignette, and view the help pages with:

```r

library(ecofolio)

vignette("ecofolio")

help(package = "ecofolio")

```

If you have problems installing the package or using the functions, please

email sean "at" seananderson.ca.