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Food digestibility and consumption rate in detrito-bryophagous groundhopper Tetrix subulata (Orthoptera: Tetrigidae)
- Kuřavová, Kateřina, Kočárek, Petr
- Biologia 2017 v.72 no.4 pp. 452-457
- Tetrix subulata, detritus, diet, digestibility, feeding methods, mosses and liverworts, tissues
- Detrito-bryophagy represents a specific feeding strategy in orthopterans. We evaluated the consumption rate and digestibility of two main food components (detritus and moss) in a typical detrito-bryophagous groundhopper, Tetrix subulata (L., 1758), under laboratory conditions. By analysing gravimetric consumption, we confirmed that detritus is consumed more intensively and with higher efficiency (digestibility 91%) than moss tissues represented by the offered tissues of Calliergonella cuspidata (Hedw.) Loeske (digestibility approximately 60%). Detritus seems to contain easily digestible compounds (a dominant source of nutrition); moss is also consumed obviously because of important additional functions in the diet.