| Flying, fasting, and feeding in birds during migration: a nutritional and physiological ecology perspective SR McWilliams, C Guglielmo, B Pierce, M Klaassen Journal of Avian Biology 35 (5), 377-393, 2004 | 579 | 2004 |
| Hampered foraging and migratory performance in swans infected with low-pathogenic avian influenza A virus JA Van Gils, VJ Munster, R Radersma, D Liefhebber, RAM Fouchier, ... PloS one 2 (1), e184, 2007 | 309 | 2007 |
| Body shrinkage due to Arctic warming reduces red knot fitness in tropical wintering range JA Van Gils, S Lisovski, T Lok, W Meissner, A Ożarowska, J De Fouw, ... Science 352 (6287), 819-821, 2016 | 297 | 2016 |
| Metabolic constraints on long-distance migration in birds M Klaassen Journal of Experimental Biology 199 (1), 57-64, 1996 | 281 | 1996 |
| Arctic waders are not capital breeders M Klaassen, Å Lindström, H Meltofte, T Piersma Nature 413 (6858), 794-794, 2001 | 270 | 2001 |
| Energy Expenditure during Free Flight in Trained and Free-Living Eurasian Kestrels (Falco Tinnunculus) D Masman, M Klaassen The Auk 104 (4), 603-616, 1987 | 239 | 1987 |
| Long-distance endozoochorous dispersal of submerged macrophyte seeds by migratory waterbirds in northern Europe—a critical review of possibilities and limitations P Clausen, BA Nolet, AD Fox, M Klaassen Acta oecologica 23 (3), 191-203, 2002 | 234 | 2002 |
| Wingbeat Frequency and the Body Drag Anomaly: Wind-Tunnel Observations on a Thrush Nightingale (Luscinia Luscinia) And a Teal (Anas Crecca) CJ Pennycuick, M Klaassen, A Kvist, Å Lindström Journal of Experimental Biology 199 (12), 2757-2765, 1996 | 218 | 1996 |
| Cues and the optimal timing of activities under environmental changes JM McNamara, Z Barta, M Klaassen, S Bauer Ecology letters 14 (12), 1183-1190, 2011 | 209 | 2011 |
| Small seed size increases the potential for dispersal of wetland plants by ducks MB Soons, C Van Der Vlugt, B Van Lith, GW Heil, M Klaassen Journal of Ecology 96 (4), 619-627, 2008 | 197 | 2008 |
| Gut travellers: internal dispersal of aquatic organisms by waterfowl CHA van Leeuwen, G Van der Velde, JM van Groenendael, M Klaassen Journal of Biogeography 39 (11), 2031-2040, 2012 | 193 | 2012 |
| Ecophysiology of avian migration in the face of current global hazards M Klaassen, BJ Hoye, BA Nolet, WA Buttemer Philosophical transactions of the Royal Society B: biological sciences 367 …, 2012 | 177 | 2012 |
| Juveniles and migrants as drivers for seasonal epizootics of avian influenza virus JGB Van Dijk, BJ Hoye, JH Verhagen, BA Nolet, RAM Fouchier, ... Journal of Animal Ecology 83 (1), 266-275, 2014 | 174 | 2014 |
| Moult and basal metabolic costs in males of two subspecies of stonechats: the European Saxicola torquata rubicula and the East African S. t. axillaris M Klaassen Oecologia 104 (4), 424-432, 1995 | 172 | 1995 |
| Surveillance of wild birds for avian influenza virus BJ Hoye, VJ Munster, H Nishiura, M Klaassen, RAM Fouchier Emerging infectious diseases 16 (12), 1827, 2010 | 171 | 2010 |
| Shape-shifting: changing animal morphologies as a response to climatic warming S Ryding, M Klaassen, GJ Tattersall, JL Gardner, MRE Symonds Trends in Ecology & Evolution 36 (11), 1036-1048, 2021 | 170 | 2021 |
| Energetics of fattening and starvation in the long-distance migratory garden warbler, Sylvia borin, during the migratory phase M Klaassen, H Biebach Journal of Comparative Physiology B 164 (5), 362-371, 1994 | 169 | 1994 |
| Unexpected diversity in socially synchronized rhythms of shorebirds M Bulla, M Valcu, AM Dokter, AG Dondua, A Kosztolányi, AL Rutten, ... Nature 540 (7631), 109-113, 2016 | 160 | 2016 |
| How did this snail get here? Several dispersal vectors inferred for an aquatic invasive species CHA Van Leeuwen, N Huig, G Van der Velde, TA Van Alen, ... Freshwater Biology 58 (1), 88-99, 2013 | 158 | 2013 |
| Modelling behavioural and fitness consequences of disturbance for geese along their spring flyway M Klaassen, S Bauer, J Madsen, I Tombre Journal of Applied Ecology 43 (1), 92-100, 2006 | 153 | 2006 |
