Chewing sandpaper: grit, plant apparency, and plant defense in sand-entrapping plants.

@article{LoPresti2016ChewingSG,
  title={Chewing sandpaper: grit, plant apparency, and plant defense in sand-entrapping plants.},
  author={Eric F LoPresti and Richard Karban},
  journal={Ecology},
  year={2016},
  volume={97 4},
  pages={826-33}
}
Sand entrapment on plant surfaces, termed psammophory or sand armor, is a phylogenetically and geographically widespread trait. The functional significance of this phenomenon has been poorly investigated. Sand and soil are nonnutritive and difficult for herbivores to process, as well as visually identical to the background. We experimentally investigated whether this sand coating physically protected the plant from herbivores or increased crypsis (e.g., decreased apparency to herbivores). We… CONTINUE READING