c(
person("Robert J.", "Hijmans", role = c("cre", "aut"),  email = "r.hijmans@gmail.com"),
person("Pieter", "Pypers", role = "ctb"),
person("Joost", "Wolff", role = "ctb"))
An implementation of the QUEFTS (Quantitative Evaluation of the Native Fertility of Tropical Soils) model. The model (1) estimates native nutrient (N, P, K) supply of soils from a few soil chemical properties; and (2) computes crop yield given that supply, crop parameters, fertilizer application, and crop attainable yield. See Janssen et al. (1990) <doi:10.1016/0016-7061(90)90021-Z> for the technical details and Sattari et al. (2014) <doi:10.1016/j.fcr.2013.12.005> for a recent evaluation and improvements.
Robert J. Hijmans [cre, aut],
Pieter Pypers [ctb],
Joost Wolff [ctb]

Marcelino de la Cruz <marcelino.delacruz@upm.es>
Analyzes and predicts from matrix population models in the
way of the Ramas (c) software

Analyzes and predicts from matrix population models in the way of the Ramas (c) software

Marcelino de la Cruz <marcelino.delacruz@urjc.es>
Imitating the 'Ramas' (c) software, analyzes and predicts from matrix population models,  (Caswell 2006) <doi:10.1002/9781118445112.stat07481>.

Analyzes and predicts from matrix population models (Caswell 2006) <doi:10.1002/9781118445112.stat07481>.

Connecting R and 'Raven' Sound Analysis Software
A tool to exchange data between R and 'Raven' sound analysis software <http://www.birds.cornell.edu/brp/raven/RavenOverview.html> (Cornell Lab of Ornithology). Functions work on data formats compatible with the R package 'warbleR'.

pbapply, warbleR, utils, stats, vegan, dplyr,kableExtra

person("Marcelo", "Araya-Salas", role = c("aut", "cre"), email = "marcelo.araya@ucr.ac.cr", comment = c(ORCID = "0000-0003-3594-619X"))
A tool to exchange data between R and 'Raven' sound analysis software (Cornell Lab of Ornithology). Functions work on data formats compatible with the R package 'warbleR'.
pbapply, warbleR, utils, stats, seewave, tuneR, NatureSounds
Marcelo Araya-Salas [aut, cre]
(<https://orcid.org/0000-0003-3594-619X>)