Description: EcoTroph is 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.

Author: Alexandre Adalardo de Oliveira and Paulo Inacio Prado <ecovirtualpackage@gmail.com>
Maintainer: Alexandre Adalardo de Oliveira <ecovirtualpackage@gmail.com>
Description: A package for simulations of classical ecological models as a learning resource.

Author: Alexandre Adalardo de Oliveira and Paulo Inacio Prado
Description: Computer simulations of classical ecological models as a

Description: Simulates the soil water balance (soil moisture, evapotranspiration, leakage and runoff), rainfall series by using the marked Poisson process and the vegetation growth through the normalized difference vegetation index (NDVI). Please see Souza et al. (2016) <doi:10.1002/hyp.10953>.

Title: General Analysis of Various Economics Demand Systems
Authors@R: person("Tianhao", "Wu", email = "tianhao.wu@yale.edu", role = c("aut", "cre"))
Description: Tools for general properties including price, quantity, elasticity, convexity, marginal revenue and manifold of various economics demand systems including Linear, Translog, CES, LES and CREMR.
License: GNU General Public License version 2
Packaged: 2016-07-15 18:13:29 UTC; tianhaowu

Title: Characterising and Locating Ecotones and Communities
Description: Analytical methods to locate and characterise ecotones, ecosystems and environmental patchiness along ecological gradients. Methods are implemented for isolated sampling or for space/time series. It includes Detrended Correspondence Analysis (Hill & Gauch (1980) <doi:10.1007/BF00048870>), fuzzy clustering (De Cáceres et al. (2010) <doi:10.1080/01621459.1963.10500845>), biodiversity indices (Jost (2006) <doi:10.1111/j.2006.0030-1299.14714.x>), and network analyses (Epskamp et al. (2012) <doi:10.18637/jss.v048.i04>) - as well as tools to explore the number of clusters in the data. Functions to produce synthetic ecological datasets are also provided.
Imports: cluster, colorspace, corrplot, e1071, ggplot2, graphics,
qgraph, igraph, methods, philentropy, plyr, purrr, reshape,
rlang, Rmisc, stats, vegan, vegclust, withr
Suggests: testthat (>= 2.1.0), knitr, rmarkdown, bookdown