N. Sören Häfker

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung — Germany

Neuroscience · Life Sciences

10h-index489citations23works6.72yr avg
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Research Topics

Circadian rhythm and melatonin(10), Marine and coastal ecosystems(7), Neurobiology and Insect Physiology Research(5), Marine and coastal plant biology(5), Spaceflight effects on biology(5)

Publications23 total

Meta-analysis of stage-specific <i>Calanus finmarchicus</i> vertical distribution in relation to hydrography and chlorophyll in the North Atlantic
Journal of Plankton Research·2025· 2 citedOpen Access
Guiding Light: Mechanisms and Adjustments of Environmental Light Interpretation with Insights from Platynereis dumerilii and Other Selected Examples
ZOOLOGICAL SCIENCE·2025· 4 citedOpen Access
Molecular circadian rhythms are robust in marine annelids lacking rhythmic behavior
PLoS Biology·2024· 14 citedOpen Access
A Cryptochrome adopts distinct moon- and sunlight states and functions as sun- versus moonlight interpreter in monthly oscillator entrainment
Nature Communications·2022· 31 citedOpen Access
Rhythms and Clocks in Marine Organisms
Annual Review of Marine Science·2022· 60 citedOpen Access
Behavioral rhythms are bad predictors of general organismal rhythmicity
2022Open Access
Animal behavior is central in shaping the realized diel light niche
Communications Biology·2022· 33 citedOpen Access
A Cryptochrome adopts distinct moon- and sunlight states and functions as sun- versus moonlight interpreter in monthly oscillator entrainment
2021· 10 citedOpen Access
Seasonal variation in UVA light drives hormonal and behavioural changes in a marine annelid via a ciliary opsin
Nature Ecology & Evolution·2021· 44 citedOpen Access
Biological Clocks and Rhythms in Polar Organisms
Advances in polar ecology·2020· 7 citedOpen Access
Rhythms of behavior: are the times changin’?
Current Opinion in Neurobiology·2019· 53 cited
<i>Calanus finmarchicus</i> seasonal cycle and diapause in relation to gene expression, physiology, and endogenous clocks
Limnology and Oceanography·2018· 44 citedOpen Access
Calanus finmarchicus diel and seasonal rhythmicity in relation to endogenous timing under extreme polar photoperiods
Marine Ecology Progress Series·2018· 33 citedOpen Access
Impact of ocean acidification on thermal tolerance and acid–base regulation of Mytilus edulis from the White Sea
Polar Biology·2018· 7 citedOpen Access
Circadian Clock Involvement in Zooplankton Diel Vertical Migration
Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut)·2018
The molecular basis of diel and seasonal rhythmicity in the copepod Calanus finmarchicus
Carl von Ossiezky University of Oldenburg·2018Open Access
Circadian Clock Involvement in Zooplankton Diel Vertical Migration
Current Biology·2017· 98 citedOpen Access
Circadian clock involvement in zooplankton diel vertical migration, link to supplementary material
Figshare·2017Open Access
First records of clock gene activity in Calanus finmarchicus – Expression patters duringoverwintering in a high Arctic fjord
2016
Clock genes in a north Atlantic key zooplankter - Expression during overwintering in a high Arctic fjord
Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut)·2016Open Access
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Frequent Co-authors

Bettina Meyer(9), Kristin Tessmar‐Raible(8), Mathias Teschke(7), Lukas Hüppe(5), Florian Raible(5), Kim S. Last(4), David W. Pond(4), Enrique Arboleda(3), Birgit Poehn(3), Aida Ćorić(3), Hans‐Otto Pörtner(2), Shruthi Krishnan(2), Martin Zurl(2), Dunja Rokvić(2), Lukas Orel(2), Eva Wolf(2), Laurenz Holcik(2), Audrey M. Mat(2), Karim Vadiwala(2), Isabel Beets(2)