BCI                  package:vegan                  R Documentation

_B_a_r_r_o _C_o_l_o_r_a_d_o _I_s_l_a_n_d _T_r_e_e _C_o_u_n_t_s

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

     Tree counts in 1-hectare plots in the Barro Colorado Island.

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

     data(BCI)

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

     A data frame with 50 plots (rows) of 1 hectare with counts of
     trees on each plot with total of 225 species (columns). Full Latin
     names are used for tree species.

_D_e_t_a_i_l_s:

     Data give the numbers of trees at least 10 cm in diameter at
     breast height (1.3 m above the ground) in each one hectare square
     of forest. Within each one hectare square, all individuals of all
     species were tallied and are recorded in this table.

     The data frame contains only the Barro Colorado Island subset of
     the original data.

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

     <URL: http://www.sciencemag.org/cgi/content/full/295/5555/666/DC1>

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

     Condit, R, Pitman, N, Leigh, E.G., Chave, J., Terborgh, J.,
     Foster, R.B., Nuez, P., Aguilar, S., Valencia, R., Villa, G.,
     Muller-Landau, H.C., Losos, E. & Hubbell, S.P. (2002).
     Beta-diversity in tropical forest trees. _Science_ 295, 666-669.

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

     data(BCI)

