|Light intensity increases the susceptibility of Vallisneria natans to snail herbivory|In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770, more
Herbivores; Intraspecific relationships; Light; Light intensity; Palatability; Predation; Resource availability; Snails; Snails; Submerged shorelines; Vallisneria natans; China, People's Rep., Hubei Prov.; Fresh water
|Authors|| || Top |
- Li, Y.
- Yu, D.
- Xu, X.
- Xie, Y.
Palatability to snail herbivory (Radix swinhoei H. Adams) and C/N ratios were assessed for Vallisneria natans (Lour.) Hara, in three different experimental light regimes (midday fluxes respectively 280 µmol m -2 s-1, 15 µmol m-2 s-1, and a variable intensity between these two). Higher light intensity as well as prolonged photoperiods increased palatability and growth, and improved C/N ratio by decreasing N content. Snail growth was slightly increased but juvenile survivorship decreased under higher light. The results suggest that the availability of light may affects intraspecific variation in palatability of V. natans.