File:Lichen dispersal.ogv
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Lichen_dispersal.ogv (file size: 14.48 MB, MIME type: application/ogg)
Summary
| Description |
Eesti: Videos leiab tõendust in situ, et lülijalgsed võivad samblike vegetatiivseid leviseid kanda. 10x suurendusega luubi UV365-valguse käes on näha tera-lagusambliku (Parmeliopsis hyperopta) tallust, mille peal asuvad UV käes helendavad soreedide e. sambliku vegetatiivsete leviste kerajad kogumikud. Helendust põhjustab soreedides olev samblikuaine - divarikaathape (talluse koorkihis seda ainet ei ole, sestap talluse muu pind UV valguses ei helendu). Just selle UV-helenduse tõttu ongi hästi näha, et muist soreedidest on “kleepunud” samblikutallusest üle jalutava ämbliku keha ning koibade külge. Sattusin selle hetke peale Aegviidu kandis, kui liigimäärangu kontrolliks puu tüvel olevat tallust UV valguse all vaatlesin. Taipasin seda erakordset hetke kohe nutitelefoniga filmida (sestap natuke ka käest filmimise “kõikumist”); mõne sekundi pärast oligi ämblik juba talluse alla kadunud…. Olen välitöödel UV-valgusega luubi abil samblikke määranud u 10 a, kuid kunagi varem pole taolise baasteaduse valdkonda kuuluva tõenduse peale sattunud. Video esmakordne esitus TÜ LKB töörühma instagrammi lehel @ut_looduskaitsebioloogid, 26. augustil 2019. English: Proved in situ that arthropods can carry lichen soredia. The video (saved with smart-phone) presents the unique moment during my fieldworks (lichen inventory), when arthropod (spider) was walking over thallus of Parmeliopsis hyperopta, and some soredia (i.e. vegetative dispersal units) have adhered to the spider's body and legs. Thallus is seen under 10x magnification and UV365-light was switched on (soredia are shining, but not the cortex of the thallus). Last second of the video presents the situation under normal daylight. This video illustrates in situ that arthropods can carry lichen dispersal units. I published the video in our workgroup insta page @ut_looduskaitsebioloogid on August 26, 2019. |
| Date | |
| Source | Own work |
| Author | Piret Lohmus |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution 4.0 International license.
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- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This image was uploaded as part of Wiki Science Competition 2019. |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 06:48, 23 January 2020 | (14.48 MB) | imagescommonswiki>Reosarevok | Better quality conversion from the original MP4 file. |
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