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An approach and software for modelling marine and freshwater ecosystems. It is articulated entirely around trophic levels. EcoTroph's key displays are bivariate plots, with trophic levels as the abscissa, and biomass flows or related quantities as ordinates. Thus, trophic ecosystem functioning can be modelled as a continuous flow of biomass surging up the food web, from lower to higher trophic levels, due to predation and ontogenic processes. Such an approach, wherein species as such disappear, may be viewed as the ultimate stage in the use of the trophic level metric for ecosystem modelling, providing a simplified but potentially useful caricature of ecosystem functioning and impacts of fishing. This version contains catch trophic spectrum analysis (CTSA) function and corrected versions of the mf.diagnosis and create.ETmain functions.
| Version: | 1.6.1 |
| Depends: | XML, utils, stats, graphics, grDevices |
| Published: | 2022-04-13 |
| DOI: | 10.32614/CRAN.package.EcoTroph |
| Author: | J. Guitton, M. Colleter, P. Gatti, and D. Gascuel |
| Maintainer: | Jerome Guitton <jerome.guitton at agrocampus-ouest.fr> |
| License: | GPL-2 | GPL-3 [expanded from: GPL] |
| URL: | http://sirs.agrocampus-ouest.fr/EcoTroph/ |
| NeedsCompilation: | no |
| Materials: | README |
| CRAN checks: | EcoTroph results |
| Reference manual: | EcoTroph.pdf |
| Package source: | EcoTroph_1.6.1.tar.gz |
| Windows binaries: | r-devel: EcoTroph_1.6.1.zip, r-release: EcoTroph_1.6.1.zip, r-oldrel: EcoTroph_1.6.1.zip |
| macOS binaries: | r-release (arm64): EcoTroph_1.6.1.tgz, r-oldrel (arm64): EcoTroph_1.6.1.tgz, r-release (x86_64): EcoTroph_1.6.1.tgz, r-oldrel (x86_64): EcoTroph_1.6.1.tgz |
| Old sources: | EcoTroph archive |
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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.