Hi thanks for that, glad you enjoyed it. Stay tuned for more time lapses and other amazing stuff filming using a microscope along with footage taken in the field.
Hello ! I have to put some lichens in freezer and in a over (furnace?) for an experience for school. I want to see the reviviscence of the lichens but I have no idea about the time that I must let the lichens in the freezer or the over. I want to know how do you achieve to do this video ? How do you achieve to find this lichen dehydrated ? Thank you, and excuse my english, I'm french :)
@@rozniyusof2859 Hi yes this is correct, they are just shown here absorbing water and expanding from that. There are "fast growing" lichens but these would still takes months to capture something good and it just ties up the cameras for too long, although maybe i might do it one day. Thanks for watching
Hi, nice video. Can you tell me how long it took to record the time lapse? I've been told lichens grow about 0,5-1mm per year, so I guess it took you quite a large period to record it, isn't it? Thanks!
Hi sorry for the late reply. Yes lichens are very slow in growth but this was done by "rehydrating" a desiccated but alive lichen, this happened very rapidly, it was a long time ago and I don't have my lab notes with me but it was under 1-2 minutes from memory. It is possible to film sporulation events also in a short time but one must be able to find suitable subjects.
+Mithbuster1991 Short answer, yes it is. I was once told it wasn't by my professors but that was garbage. Most people don't consider lichens to be damaging but I have seen many tree species on both hemispheres succumb to the overwhelming growth of lichens on them. Not all trees are effected of course and I'm sure it depends on the type of lichen, tree species and climate. Lichens as we know can produce acids which enable them to over time etch away at their substrate. Maybe this has a detrimental effect on tree branches, maybe simply blocking the entire surface of a plant enables susceptibility to fungal or bacterial infection to occur. Great question, I will endeavour to look up the relevant scientific papers and add something to the description. BTW my mom many many moons ago told me she observed this phenomenon on her Azaleas which were growing in a climate not suited to them and they always grew very well for a period then once this semi tropical lichen took hold (intact several species on the same plants), very much weakened these plants. However, the same plant species never had lichens growing on them 1000km south of where they used to live. Watch this place.
Hello, I am a researcher in lichens, (supporting information on www.taxateca.com/contacto.html ) and I confirm that lichens are not dangerous for plants. Sometimes they are abundant on dead trees, but is only because they found better conditions to grow than on alive and shadowy trees.
