ecespa (version 1.1-17)

seedlings: Cohorts of Helianthemum squamatum seedlings

Description

Marked point patterns of two consecutive cohorts of seedlings of H. squamatum growing in a gypsophylous plant community in Central Spain. The datasets contains the locations of the seedlings marked with their heigth. Both the coordinates and the heigth of the seedlings are given in cm.

Usage

data(seedlings1)
data(seedlings2)

Format

seedlings1 and seedlings2 are objects of class "ppp" representing the point pattern of seedling locations marked by their heights. See ppp.object for details of the format.

References

De la Cruz, M. 2006. Introducción al análisis de datos mapeados o algunas de las (muchas) cosas que puedo hacer si tengo coordenadas. Ecosistemas 15 (3): 19-39.

Escudero, A., Romao, R.L., De la Cruz, M. & Maestre, F. 2005. Spatial pattern and neighbour effects on Helianthemum squamatum seedlings in a Mediterranean gypsum community. Journal of Vegetation Science, 16: 383-390. tools:::Rd_expr_doi("10.1111/j.1654-1103.2005.tb02377.x").

Examples

if (FALSE) {

 data(seedlings1)
 
 plot(seedlings1)

}