julliot {ade4} | R Documentation |
This data set gives the spatial distribution of seeds (quadrats counts) of seven species in the understorey of tropical rainforest.
data(julliot)
julliot
is a list containing the 3 following objects :
tab
. The second and third variables return the coordinates (x,y) of the points of the boundary line.
Species names of julliot$tab
are Pouteria torta, Minquartia guianensis, Quiina obovata, Chrysophyllum lucentifolium, Parahancornia fasciculata, Virola michelii, Pourouma spp.
Julliot, C. (1992) Utilisation des ressources alimentaires par le singe hurleur roux, Alouatta seniculus (Atelidae, Primates), en Guyane : impact de la dissémination des graines sur la régénération forestière. Thèse de troisième cycle, Université de Tours.
Julliot, C. (1997) Impact of seed dispersal by red howler monkeys Alouatta seniculus on the seedling population in the understorey of tropical rain forest. Journal of Ecology, 85, 431–440.
data(julliot) par(mfrow = c(3,3)) ## Not run: for(k in 1:7) area.plot(julliot$area,val = log(julliot$tab[,k]+1), sub = names(julliot$tab)[k], csub = 2.5) ## End(Not run) 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$tab)[k], csub = 2.5) } ## Not run: par(mfrow = c(3,3)) for(k in 1:7) { area.plot(julliot$area) s.value(julliot$xy, scalewt(log(julliot$tab[,k]+1)), sub = names(julliot$tab)[k],csub = 2.5, add.p = TRUE) } ## End(Not run) par(mfrow = c(3,3)) for(k in 1:7) s.value(julliot$xy,log(julliot$tab[,k]+1), sub = names(julliot$tab)[k], csub = 2.5) ## Not run: 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)} ## End(Not run)