seedlings           package:ecespa           R Documentation(latin1)

_C_o_h_o_r_t_s _o_f _H_e_l_i_a_n_t_h_e_m_u_m _s_q_u_a_m_a_t_u_m _s_e_e_d_l_i_n_g_s

_D_e_s_c_r_i_p_t_i_o_n:

     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.

_U_s_a_g_e:

     data(seedlings1)
     data(seedlings2)

_F_o_r_m_a_t:

     '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.

_S_o_u_r_c_e:

     Romao, R.L. 2003. _Estructura espacial de comunidades de
     gipsofitos: interacciones bioticas y constricciones abioticas._
     Tesis Doctoral. Universidad Politecnica de Madrid.

_R_e_f_e_r_e_n_c_e_s:

     De la Cruz, M. 2006. Introduccion al analisis  de datos mapeados o
     algunas de las (muchas) cosas  que puedo hacer si tengo
     coordenadas. _Ecosistemas_. 2006/3.

     <URL: http://www.revistaecosistemas.net/pdfs/448.pdf>.

     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. _J. Veg. Sci._,
     *16*: 383-390.

_E_x_a_m_p_l_e_s:

     ## Not run: 

      data(seedlings1)
      
      plot(seedlings1)

     ## End(Not run)

