QFASA: Quantitative Fatty Acid Signature Analysis

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Accurate estimates of the diets of predators are required in many areas of ecology, but for many species current methods are imprecise, limited to the last meal, and often biased. The diversity of fatty acids and their patterns in organisms, coupled with the narrow limitations on their biosynthesis, properties of digestion in monogastric animals, and the prevalence of large storage reservoirs of lipid in many predators, led us to propose the use of quantitative fatty acid signature analysis (QFASA) to study predator diets.

Author
Sara Iverson [aut], Chris Field [aut], Don Bowen [aut], Wade Blanchard [aut], Connie Stewart [aut, cph], Shelley Lang [aut], Justin Kamerman [cre, cph]
Date of publication
2016-10-29 13:06:30
Maintainer
Justin Kamerman <justin.kamerman@unb.ca>
License
MIT + file LICENSE
Version
1.0.2

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Man pages

AIT.dist
Returns the distance between two compositional vectors using...
AIT.more
Used to provide additional information on various model...
AIT.obj
Used in 'solnp()' as the objective function to be minimized...
CC
Fatty acid calibration coefficients.
chisq.dist
Returns the distance between two compositional vectors using...
CS.more
Used to provide additional information on various model...
CS.obj
Used in 'solnp()' as the objective function to be minimized...
FAset
List of fatty acids to be used for modelling.
KL.dist
Returns the distance between two compositional vectors using...
KL.more
Used to provide additional information on various model...
KL.obj
Used in 'solnp()' as the objective function to be minimized...
mean.geometric
Returns the geometric mean of a compositional vector
MEANmeth
Returns the multivariate mean FA signature of each prey group...
multiplot
Multiplot
p.QFASA
Computes the diet estimate for each predator in seal.mat...
predatorFAs
Predator fatty acid signatures. Each predator signature is a...
preyFAs
Prey fatty acid signatures. Each prey signature is a row with...
QFASA
QFASA: A package for Quantitative Fatty Acid Signature...
QFASA.const.eqn
Returns 'sum(alpha)' and used in 'solnp'.

Files in this package

QFASA
QFASA/inst
QFASA/inst/exdata
QFASA/inst/exdata/AdditionalMeasuresKL.csv
QFASA/inst/exdata/DietEstKL.csv
QFASA/inst/exdata/AdditionalMeasuresAIT.csv
QFASA/inst/exdata/DietEstAIT.csv
QFASA/inst/exdata/AdditionalMeasuresCS.csv
QFASA/inst/exdata/DietEstCS.csv
QFASA/inst/CITATION
QFASA/inst/doc
QFASA/inst/doc/ModelingWorkflow.R
QFASA/inst/doc/ModelingWorkflow.html
QFASA/inst/doc/ModelingWorkflow.Rmd
QFASA/tests
QFASA/tests/testthat.R
QFASA/tests/testthat
QFASA/tests/testthat/testMatrixDimensions.R
QFASA/tests/testthat/testAIT.R
QFASA/tests/testthat/testGeometricMean.R
QFASA/tests/testthat/testModelWorkflowKL.R
QFASA/tests/testthat/testModelWorkflowCS.R
QFASA/tests/testthat/testModelWorkflowAIT.R
QFASA/NAMESPACE
QFASA/NEWS.md
QFASA/data
QFASA/data/predatorFAs.rda
QFASA/data/FAset.rda
QFASA/data/preyFAs.rda
QFASA/data/CC.rda
QFASA/R
QFASA/R/predatorFAs.R
QFASA/R/CC.R
QFASA/R/FAset.R
QFASA/R/qfasa.R
QFASA/R/preyFAs.R
QFASA/vignettes
QFASA/vignettes/ModelingWorkflow.Rmd
QFASA/README.md
QFASA/MD5
QFASA/build
QFASA/build/vignette.rds
QFASA/DESCRIPTION
QFASA/man
QFASA/man/KL.more.Rd
QFASA/man/AIT.obj.Rd
QFASA/man/MEANmeth.Rd
QFASA/man/CS.obj.Rd
QFASA/man/preyFAs.Rd
QFASA/man/FAset.Rd
QFASA/man/QFASA.const.eqn.Rd
QFASA/man/chisq.dist.Rd
QFASA/man/multiplot.Rd
QFASA/man/AIT.more.Rd
QFASA/man/mean.geometric.Rd
QFASA/man/predatorFAs.Rd
QFASA/man/CS.more.Rd
QFASA/man/CC.Rd
QFASA/man/AIT.dist.Rd
QFASA/man/KL.obj.Rd
QFASA/man/KL.dist.Rd
QFASA/man/QFASA.Rd
QFASA/man/p.QFASA.Rd
QFASA/LICENSE