Much of my research is on why we observe variation in life histories and behaviour, both within and between species, and how this variation influences population dynamics, interactions and ecosystems. I am also deeply fascinated by seasonality and aim to understand how seasonal environments shape ecological processes and evolutionary adaptations. Most of my work is in marine ecosystems, and on birds, fish and zooplankton, but I also collaborate on projects where terrestrial organisms are studied. I am currently starting several new projects in coastal systems and on human impacts on organisms and ecological interactions. I combine investigations in the field (including experiments) with mathematical models and statistical analyses of data. My main position is with BIO, with adjunct position at the Norwegian Institute for Nature Research (NINA).
Keywords: evolutionary ecology, population biology, marine ecology, phenology, life history traits, migration, meta-ecosystems
I am involved in the following courses at BIO:
BIO212 Marine Community Ecology - Organisms and Habitats (main responsibility)
BIO102 Organismal Biology 2
Also, I am one of the UiB/BIO coordinators of the IMBRSea program
Contributions at other departments or faculites at UiB:
JUS293-2-A Law of the Sea and its Uses
Contributions at other institutions:
BL7056 Marine Ecosystem Dynamics, Stockholm University
Check out the rich resources on teaching and learning offered by bioCEED
I was involved in bioCEED for several years. This link expands a bit on my involvement and pedagogical journey.
Via Google Scholar
or via Seasonal Ecology Group
Three recent publications:
Samplonius et al. 2021. Strengthening the evidence base for temperature-mediated phenological asynchrony and its impacts. Nature Ecology & Evolution abstract
Claireaux et al. 2020. Eight decades of adaptive changes in herring reproductive investment: the combined effect of environment and exploitation. ICES Journal of Marine Science abstract
Tarroux et al. 2020. Foraging tactics in dynamic sea-ice habitats affect individual state in a long-ranging seabird. Functional Ecology abstract
And some "classics":
Ji R, Jin M, Varpe Ø. 2013. Sea ice phenology and timing of primary production pulses in the Arctic Ocean. Global Change Biology 19: 734-741 abstract
Varpe Ø. 2012. Fitness and phenology: annual routines and zooplankton adaptations to seasonal cycles. Journal of Plankton Research 34: 267-276 full text
Varpe Ø, Jørgensen C, Tarling GA, Fiksen Ø 2007. Early is better: seasonal egg fitness and timing of reproduction in a zooplankton life-history model. Oikos 116: 1331-1342 pdf
Varpe Ø, Tveraa T, Folstad I. 2004. State-dependent parental care in the Antarctic petrel: responses to manipulated chick age during early chick rearing. Oikos 106 (3) 479-488 pdf
My ORCID iD: 0000-0002-5895-6983
I frequently take part in MSc and PhD supervision.
Information about the study program for Master's in biology at UiB can be found here: https://www.uib.no/en/studies/MAMN-BIO
For an overview of current and some past PhD and MSc candidates where I am/was involved as adviser, take a look at the people section of the Seasonal Ecology Group.