lakes                  package:alr3                  R Documentation

_L_a_k_e _z_o_o_p_l_a_n_k_t_o_n _d_i_v_e_r_s_i_t_y

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

     These data give the number of known crustacean zooplankton species
     for 69 world lakes.  Also included are a number of characteristics
     of each lake.  There are missing values.

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

     This data frame contains the following columns:

     _S_p_e_c_i_e_s Number of zooplankton species

     _M_a_x_D_e_p_t_h Maximum lake depth, m

     _M_e_a_n_D_e_p_t_h Mean lake depth, m

     _C_o_n_d Specific conductance, micro Siemans

     _E_l_e_v Elevation, m

     _L_a_t N latitude, degrees

     _L_o_n_g W longitude, degrees

     _D_i_s_t distance to nearest lake, km

     _N_L_a_k_e_s number of lakes within 20 km

     _P_h_o_t_o Rate of photosynthesis, mostly by the 14C method

     _A_r_e_a Lake area, in hectares

     _L_a_k_e Name of Lake

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

     Dodson, S. (1992), Predicting curstacean zooplankton species
     richness, _Limnology and Oceanography_, 37, 848-856.

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

     Weisberg, S. (2005). _Applied Linear Regression_, 3rd edition. New
     York: Wiley, Problem 8.12.

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

     data(lakes)

