gala                 package:faraway                 R Documentation

_S_p_e_c_i_e_s _d_i_v_e_r_s_i_t_y _o_n _t_h_e _G_a_l_a_p_a_g_o_s _I_s_l_a_n_d_s

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

     There are 30 Galapagos islands and 7 variables in the dataset. The
     relationship between the number of species of tortoise and several
     geographic variables is of interest. The original dataset
     contained several missing values which have been filled for
     convenience.

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

     data(gala)

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

     The dataset contains the following variables

     '_S_p_e_c_i_e_s' the number of species of tortoise found on the island

     '_E_n_d_e_m_i_c_s' the number of endemic species

     '_A_r_e_a' the area of the island (km$^2$)

     '_E_l_e_v_a_t_i_o_n' the highest elevation of the island (m)

     '_N_e_a_r_e_s_t' the distance from the nearest island (km)

     '_S_c_r_u_z' the distance from Santa Cruz island (km)

     '_A_d_j_a_c_e_n_t' the area of the adjacent island (square km)

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

     M. P. Johnson and P. H. Raven (1973) "Species number and endemism:
     The Galapagos Archipelago revisited" Science, 179, 893-895

