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Found 2 results

  1. How to film sundew snap-tentacles. When filming sundew snap-tentacles, some simple measures can be helpful to prepare the recording correctly and to avoid disturbing shaking by unnecessary poking of the tentacle heads. That needs some understanding on their different response times and motion patterns. Since many years, we experimented with catapulting sundews and summarized our experiences now in this brief movie description, providing hints how to proceed with moderate and rapid catapult-flypaper traps. The idea for this film came up after some requests on Facebook how to film such tentacle motions. Good luck when filming your Drosera.
  2. Trap diversity and evolution in the family Droseraceae Simon Poppinga, Siegfried R.H. Hartmeyer, Tom Masselter, Irmgard Hartmeyer and Thomas Speck A new review has been published in PBS (Plant Signaling & Behavior) and is now online (open access, link below). Recent investigations revealed how the snap-traps of Aldrovanda vesiculosa (waterwheel plant) and Dionaea muscipula (Venus’ flytrap) work mechanically and how these apparently similar devices differ as to their functional morphology and shutting mechanics. Recently, it was also shown that there exists a higher diversity of different tentacle types and trap configurations in Drosera than previously known which presumably reflect adaptations to different prey spectra. Based on these recent findings, we finally comment on possible ways for intrafamiliar trap evolution. http://www.landesbio.../article/24685/