Fig. 4
From: Microbiota-mediated competition between Drosophila species
Effect of D. melanogaster larvae and their associated microbiota on the development of D. suzukii eggs until adult emergence. Eggs were individually deposited in grape berries where we mimicked natural oviposition by Drosophila females and field-like conditions. The greater ratio of D. melanogaster to D. suzukii egg follows relative infestation intensities observed in the field [11]. The statistical interaction between number of D. melanogaster eggs and the presence or absence of their microbe was significant (F2, 172 = 6.46; p = 0.002). Independent contrasts indicate a significant difference between the treatments with and without D. melanogaster microbes at high D. melanogaster density (F1, 174 = 15.6; p = 0.0001). Overall REML model results: Number Dmel eggs per Ds egg; F2, 165 = 4.83; p = 0.009; Dmel axenic or not; F1, 162 = 0.41; p = 0.52; Number of Dmel eggs * axenic or not; F2, 172 = 6.46; p = 0.002; Number of emerging Dmel adults; F1, 174 = 7.74; p = 0.006. Symbols indicate means; error bars indicate standard errors; *** for p < 0.001