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Couepia: Spatial pattern of Couepia caryophylloides in Paracou, a canopy tree species of French Guiana.

Description

Spatial pattern of 34 mature individuals and 173 young individuals of the tree species Couepia caryophylloides (Chrysobalanaceae) in a 25-ha forest plot in Paracou, French Guiana.

Usage

data(Couepia)

encoding

latin1

format

A list with 4 components: $rect is a vector of coordinates $(xmin,ymin,xmax,ymax)$ of the origin and the opposite corner of a 500 by 500 m rectangular plot. $tri is a list of vertice coordinates $(ax,ay,bx,by,cx,cy)$ of contiguous triangles covering swampy parts of the plot. $trees is a list of tree coordinates $(x,y)$. $stage is a factor with 2 levels $("mature","young")$.

source

Collinet, F. 1997. Essai de regroupement des principales esp�ces structurantes d'une foret dense humide d'apr�s l'analyse de leur r�partition spatiale (foret de Paracou - Guyane). Th�se de doctorat, Universit� Claude Bernard, Lyon, France.

References

Goreaud, F. & P�lissier, R. 2003. Avoiding misinterpretation of biotic interactions with the intertype K12-function: population independence vs. random labelling hypotheses. Journal of Vegetation Science, 14: 681-692.

Examples

data(Couepia)
coca.spp <- spp(Couepia$trees, mark=Couepia$stage, window=Couepia$rect, triangles=Couepia$tri)
plot(coca.spp)