Photo of Sjoerd Duijns

Sjoerd Duijns

Post-doctoral Fellow

Degrees:MSc. (Wageningen University, the Netherlands), Ph.D. (Netherlands Institute for Sea Research (NIOZ), defended at University of Groningen, the Netherlands)
Office:NWRC, room 430
Website:Visit my lab website

Current Research

I am a behavioral ecologist with a background and interest in foraging behavior and migration. I am interested in the mechanisms by which organisms deal with the aspects of their (changing) environment and I am fascinated how animals respond to this. Are animals phenotypically flexible or do they change their distribution and diet? These are key questions that I aim to unravel by integrating behavior, demography and population dynamics using statistical and theoretical models with empirical data.

Currently I am working on the distribution and migration patterns of several shorebird species in North America using the motus wildlife tracking system. In addition to this, my work will expand on marine-shipping wildlife interactions in the Canadian Arctic.

Selected Publications

Duijns S, van Gils JA, Smart J, & Piersma T. 2015. Phenotype-limited distributions: short-billed birds move away during times that prey bury deeply. Royal Society Open Science 2, 150073. DOI: 10.1098/rsos.150073

Duijns S, Knot IE, Piersma T & van Gils JA. 2015. Field measurements give biased estimates of functional response parameters, but help explain foraging distributions. Journal of Animal Ecology 84, 565-575. DOI: 10.1111/1365-2656.12309

Duijns S, van Gils JA, Spaans B, ten Horn J, Brugge M & Piersma T. 2014. Sex-specific winter distribution in a sexually dimorphic shorebird is explained by resource partitioning. Ecology & Evolution 4:4009-4018. DOI: 10.1002/ece3.1213

Duijns S & Piersma T. 2014. Interference competition in a sexually dimorphic shorebird: prey behaviour explains intraspecific competition. Animal Behaviour 92:195-201. DOI:10.1016/j.anbehav.2014.04.007

Duijns S, Hidayati NA & Piersma T. 2013. Bar-tailed Godwits Limosa l. lapponica eat polychaete worms wherever they winter in Europe. Bird Study 60: 509-517. DOI:10.1080/00063657.2013.836153

Complete List of Publications