function [prdData, info] = predict_Phrynosoma_douglasii(par, data, auxData)
  
  % unpack par, data, auxData
  cPar = parscomp_st(par); vars_pull(par); 
  vars_pull(cPar);  vars_pull(data);  vars_pull(auxData);
  
  % compute temperature correction factors
  TC = tempcorr(temp.am, T_ref, T_A);
  
% zero-variate data

  % life cycle
  pars_tp = [g k l_T v_Hb v_Hp];
  [t_p, t_b, l_p, l_b, info] = get_tp(pars_tp, f);
  
  if info == 0
    prdData = []; return;
  end
  
  % birth
  L_b = L_m * l_b;                  % cm, structural length at birth at f
  Ww_b = L_b^3 * (1 + w * f);       % g, wet weight at birth

  % puberty 
  tT_p = (t_p - t_b)/ k_M/ TC;      % d, time since birth at puberty at f and T
  L_p = L_m * l_p;                  % cm, structural length at puberty
  Ww_p = L_p^3 * (1 + f * w);       % g, weight at puberty

  % ultimate
  l_i = f - l_T;                    % -, scaled ultimate length
  L_i = L_m * l_i;                  % cm, ultimate structural length at f
  Ww_i = L_i^3 * (1 + f * w);       % g, ultimate wet weight at f

  % reproduction
  pars_R = [kap; kap_R; g; k_J; k_M; L_T; v; U_Hb; U_Hp]; % compose parameter vector at T
  RT_i = TC * reprod_rate(L_i, f, pars_R);               % #/d, ultimate reproduction rate at T

  % life span
  pars_tm = [g; l_T; h_a/ k_M^2; s_G];  % compose parameter vector at T_ref
  t_m = get_tm_s(pars_tm, f, l_b);      % -, scaled mean life span at T_ref
  aT_m = t_m/ k_M/ TC;                  % d, mean life span at T
  
  % males
  pars_tpm = [g k l_T v_Hb v_Hpm];
  [t_pm, t_bm, l_pm, l_bm, info] = get_tp(pars_tpm, f);
  if info == 0
    prdData = []; return;
  end
  tT_pm = (t_pm - t_bm)/ k_M/ TC;      % d, time since birth ar puberty

  % pack to output
  prdData.tp = tT_p;
  prdData.tpm = tT_pm;
  prdData.am = aT_m;
  prdData.Wwb = Ww_b;
  prdData.Wwp = Ww_p;
  prdData.Wwi = Ww_i;
  prdData.Ri = RT_i;
  
  % univar data
  
  % time-weight
  tf = [0 150 350; f_000 f_150 f_350]';
  [t, EL] = ode45(@get_EL, tW(:,1), [E_m, L_b], [], tf, v * TC, g, E_m, L_m, p_Am * TC); % EL: {J/cm^3, cm}, with {[E], L}
  EWw = EL(:,2).^3 .* (1 + EL(:,1) * w_E/ mu_E/ d_E); % g, wet weight

  % pack to output
  prdData.tW = EWw;
end

function dEL = get_EL(t, EL, tf, v, g, E_m, L_m, p_Am)
  E = EL(1); % J/cm^3, reserve density [E}
  L = EL(2); % cm, structural length
  
  f = spline1(t, tf);                    % -, scaled functional response at t
  dE = (f * p_Am - E * v)/ L;            % J/d.cm^3, change in reserve density d/dt [E]
  e = E/ E_m;                            % -, scaled reserve density
  r = v * (e/ L - 1/ L_m)/ (e + g);      % 1/d, specific growth rate
  dL = L * r/ 3;                         % cm/d, change in structural length d/dt L
  
  dEL = [dE; dL]; % catenate for output
end