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X-WR-RELCALID:www_embl_org_seminar_13396.ics
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DTSTAMP:20240329T114948Z
LOCATION:Virtual\, EMBL Heidelberg
Meyerhofstraße 1
69117 Heidelber
g
Germany
SUMMARY;LANGUAGE=en-us:Hans Christopher Bernstein: Hot Lake: A story of sal
ty biofilms\, microbial activity gradients\, and succession dynamics
DESCRIPTION:Planetary Biology\nSpeaker: Hans Christopher Bernstein\nInstitu
tion: The Arctic University of Norway\, Norway\nHost: Michael Zimmermann\n
Abstract: This talk will present a unique hypersaline microbial ecosystem
and some of the lessons learned by testing two specific hypotheses. The fi
rst was that the total number of microbial taxa (observed richness) should
correlate with photosynthetic productivity measured across microscale grad
ients within a biofilm. The original prediction was that this cyanobacteri
a-dominated microbial mat would follow a macroecological principle known a
s the “species-energy theory”. This was tested using a combination of micr
osensor profiles\, stable isotope tracers and amplicon sequencing methods.
The second hypothesis was that seasonal assembly patterns of these complex
communities would follow predictable trajectories that favor persistent ab
undance of cyanobacterial colonizers or “founder species”. This was tested
using stable isotope tracers\, amplicon sequencing and bioimaging of dynam
ic biofilm growth stages. Were these hypotheses supported? Please find out
in this presentation that will also briefly cover the new research directi
ons being built up in Arctic Norway by the Microalgae & Microbiomes Resear
ch Group.\n
DTSTART:20210601T123000Z
LAST-MODIFIED:20240329T114948Z
DURATION:PT1H
UID:www.embl.org/13396
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