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Table 7 Results of generalized linear mixed model for testing the effect of δ13 C/δ15 N in the periphyton within territories and the effect of fish ecomorph on δ13 C/δ15 N of cichlid muscles

From: Depth segregation and diet disparity revealed by stable isotope analyses in sympatric herbivorous cichlids in Lake Tanganyika

  Estimate SE DF t value p
δ13C      
 (Intercept)  1.7 4.8 5.1  0.4 NS
 δ13C in periphyton  1.1 0.4 5.1  3.0 <0.05
 grazer in ecomorph  0.6 1.6 5.0  0.4 NS
 scraper in ecomorph  0.3 2.8 5.0  0.1 NS
δ15N      
 (Intercept)  5.8 0.6 5.0 10.0 <0.001
 δ15N in periphyton  0.5 0.5 5.0  1.0 NS
 grazer in ecomorph −0.6 0.6 5.0 −0.9 NS
 scraper in ecomorph −0.2 1.1 5.0 −0.2 NS
  1. Fish species are included as a random factor. SE, standard error; DF, degree of freedom.