ade4 (version 1.2-2)

julliot: Seed dispersal

Description

This data set gives the spatial distribution of seeds (quadrats counts) of seven species in the understorey of tropical rainforest.

Usage

data(julliot)

References

Julliot, C. (1992) Utilisation des ressources alimentaires par le singe hurleur roux, Alouatta seniculus (Atelidae, Primates), en Guyane : impact de la diss�mination des graines sur la r�g�n�ration foresti�re. Th�se de troisi�me cycle, Universit� de Tours.

Julliot, C. (1997) Impact of seed dispersal by red howler monkeys Alouatta seniculus on the seedling population in the understorey of tropical rain forest. Journal of Ecology, 85, 431--440.

Examples

data(julliot)
par(mfrow = c(3,3))
for(k in 1:7)
    area.plot(julliot$area,val = log(julliot$tab[,k]+1),
     sub = names(julliot$tab)[k], csub = 2.5)

if (require(splancs, quiet = TRUE)){
    par(mfrow = c(3,3))
    for(k in 1:7)
      s.image(julliot$xy, log(julliot$tab[,k]+1), kgrid = 3, span = 0.25,
      sub = names(julliot$tab)[k], csub = 2.5)
}

par(mfrow = c(3,3))
for(k in 1:7) {
    area.plot(julliot$area)
    s.value(julliot$xy, scalewt(log(julliot$tab[,k]+1)),
     sub = names(julliot$tab)[k],csub = 2.5, add.p = TRUE)
}
par(mfrow = c(3,3))
for(k in 1:7)
    s.value(julliot$xy,log(julliot$tab[,k]+1),
     sub = names(julliot$tab)[k], csub = 2.5)

if (require(spdep, quiet = TRUE)){
par(mfrow = c(1,1))
neig0 <- nb2neig(dnearneigh(as.matrix(julliot$xy), 1, 1.8))
s.label(julliot$xy, neig = neig0, clab = 0.75, incl = FALSE,
 addax = FALSE, grid = FALSE)

gearymoran(neig.util.LtoG(neig0), log(julliot$tab+1))
orthogram(log(julliot$tab[,3]+1), ortho = scores.neig(neig0),
 nrepet = 9999)}