How animals are able to navigate over such large distances each year has fascinated biologists for centuries. Part of the research in Norris lab focuses on understanding the proximate mechanisms birds and butterflies use to migrate between their breeding and non-breeding grounds. We have and are undertaking a series of translocations experiments designed to examine how individuals are able to detect longitudinal displacements.
Kishkinev, D, Heyers, D, Woodworth, BK, Mitchell, GW, Hobson, KA & Norris, DR. 2016. Experienced migratory songbirds do not display goal-ward orientation after release following a cross-continental displacement: an automated telemetry study. Scientific Reports 6: 37336.
Mouritsen, H, Derbyshire, R, Stakkeicken, J, Frost, B, Mouritsen, O & Norris, DR. 2013. An experimental displacement and over 50 years of tagged-recoveries show that monarch butterflies are not true navigators. Proceedings of the National Academy of Sciences, USA 110(18): 7348-7353.
Mouritsen, H, Derbyshire, R, Stakkeicken, J, Frost, B, Mouritsen, O & Norris, DR. 2013. Reply to Oberhauser et al.: The experimental evidence is clear. Monarch butterflies are almost certainly not true navigators. Proceedings of the National Academy of Sciences, USA 110 (39): E3681. (letter to Editor)