Cheddar 0.1-625 was released today and is available on CRAN.
This release introduces an enhancement to the TrophicChains function.
The number of possible trophic chains within a food web rapidly
increases with the number of nodes and links. The worst-case scenario
is that every consumer eats every other node ...
The authors examined how food-web structure varied among a system of naturally fragmented islands in a river network. They used cheddar to produce a number of statistics and figures.
McLaughlin et al (2013) Habitat Isolation Reduces the Temporal Stability of Island Ecosystems in the Face of Flood Disturbance. Advances in ...
read moreCheddar 0.1-624 was released today and is available on CRAN. This releases makes it possible to build cheddar using modern C++ compilers.
See the release history for details.
read moreThe authors examined how different levels of node resolution alter various food-web properties of an empirical freshwater dataset. Chedddar was used to compute some statistics.
Complex life cycles in a pond food web: effects of life stage structure and parasites on network properties, trophic positions and the fit of a ...
read moreCheddar 0.1-623 was released today and is available on CRAN.
This release adds functions to that compute the quantitative web stats defined by
Bersier et al (2002)
- descriptors that are based upon information-theory and that consider the
strength of trophic interactions. The NodeQuantitativeDescriptors and
QuantitativeDescriptors functions compute tables of ...
We confronted a widely used model of community dynamics with empirical data from a lake community. Cheddar was used to examine changes in community properties, showing that any important empirical patterns were reproducible as outcomes of dynamics, and were not reproducible when parameters did not follow physiological allometries.
Hudson and ...
read moreThe authors imposed different flow treatments on fresh-water mesocosms containing complex trophic communities. Cheddar was used to produce plots of the food-web data. Communities subjected to drought treaments had fewer species and fewer trophic interactions, leading to the partial collapse of the food web.
Ledger et al (2013) Extreme climatic ...
read moreThe authors examined patterns in species-poor communities of glacier-fed rivers. They used Cheddar to compute the suite of tritrophic food-web statistics, which combine the set of trophic links with species' body masses and numerical abundances. Their analysis revealed that any disturbances to a single taxon could propagate throughout the community ...
read moreCheddar 0.1-622 was released today and is available on CRAN. See the release history for details.
read moreCheddar 0.1-620 was released today. See the release history for details.
This release is not substantial enough to warrant submission to CRAN. Unfortunately, I have just discovered that github no longer host files for download so I am unable to make this release available at the moment. I will ...
read moreI will be talking about Cheddar at the 2012 BES annual meeting in Birmingham at 12:30 on Thursday 20th.
read moreMethods in Ecology and Evolution have published our applications paper that describes Cheddar. The article is open-access and can be accessed without a subscription.
Hudson et al (2013) Cheddar: analysis and visualisation of ecological communities in R. Methods in Ecology and Evolution, 4 (1) 99-104. 10.1111/2041-210X.12005
read moreThe authors examined the effects of temperature on the structure of communities in geothermally heated streams. Cheddar was used to create a number of plots and to compute a range of statistics. Body size, biomass and trophic interactions varied greatly with temperature.
O'Gorman et al (2013) Impacts of warming ...
read moreThe authors conducted a long-running field experiment to examine changes in the structure of stream communities that were subject to drought treatments. Cheddar was used to quantify changes in community structure. Drought caused the loss of many taxa and trophic links, resulting in changes in many network properties. Larger taxa ...
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