| Females increase offspring heterozygosity and fitness through extra-pair matings K Foerster, K Delhey, A Johnsen, JT Lifjeld, B Kempenaers Nature 425 (6959), 714-717, 2003 | 630 | 2003 |
| Polygyny in the pied flycatcher, Ficedula hypoleuca: a test of the deception hypothesis G Stenmark, T Slagsvold, JT Lifjeld Animal Behaviour 36 (6), 1646-1657, 1988 | 309 | 1988 |
| Polygyny in birds: the role of competition between females for male parental care T Slagsvold, JT Lifjeld The American Naturalist 143 (1), 59-94, 1994 | 280 | 1994 |
| Female bluethroats enhance offspring immunocompetence through extra-pair copulations A Johnsen, V Andersen, C Sunding, JT Lifjeld Nature 406 (6793), 296-299, 2000 | 275 | 2000 |
| Extra-pair paternity in monogamous tree swallows JT Lifjeld, PO Dunn, RJ Robertson, PT Boag Animal Behaviour 45 (2), 213-229, 1993 | 274 | 1993 |
| Variation in plumage colour of the Great tit Parus major in relation to habitat, season and food T Slagsvold, JT Lifjeld Journal of Zoology 206 (3), 321-328, 1985 | 228 | 1985 |
| DNA barcoding of Scandinavian birds reveals divergent lineages in trans-Atlantic species A Johnsen, E Rindal, PGP Ericson, D Zuccon, KCR Kerr, MY Stoeckle, ... Journal of Ornithology 151 (3), 565-578, 2010 | 209 | 2010 |
| Female control of extra-pair fertilization in tree swallows JT Lifjeld, RJ Robertson Behavioral Ecology and Sociobiology 31 (2), 89-96, 1992 | 205 | 1992 |
| Ultraviolet plumage ornamentation affects social mate choice and sperm competition in bluethroats (Aves: Luscinia s. svecica): a field experiment A Johnsen, S Andersson, J Örnborg, JT Lifjeld Proceedings of the Royal Society of London. Series B: Biological Sciences …, 1998 | 199 | 1998 |
| Mate choice and imprinting in birds studied by cross-fostering in the wild T Slagsvold, BT Hansen, LE Johannessen, JT Lifjeld Proceedings of the Royal Society of London. Series B: Biological Sciences …, 2002 | 185 | 2002 |
| Carotenoids in food chain studies. 2. The food chain of Parus spp. monitored by carotenoid analysis. V Partali, S Liaaen-Jensen, T Slagsvold, JT Lifjeld | 183 | 1987 |
| On the cost of searching for a mate in female pied flycatchers Ficedula hypoleuca T Slagsvold, JT Lifjeld, G Stenmark, T Breiehagen Animal Behaviour 36 (2), 433-442, 1988 | 181 | 1988 |
| Intraspecific variation in sperm length is negatively related to sperm competition in passerine birds O Kleven, T Laskemoen, F Fossøy, RJ Robertson, JT Lifjeld Evolution 62 (2), 494-499, 2008 | 179 | 2008 |
| Comparative evidence for the evolution of sperm swimming speed by sperm competition and female sperm storage duration in passerine birds O Kleven, F Fossøy, T Laskemoen, RJ Robertson, G Rudolfsen, JT Lifjeld Evolution 63 (9), 2466-2473, 2009 | 176 | 2009 |
| The function of extrapair paternity in blue tits and great tits: good genes or fertility insurance? C Krokene, K Rigstad, M Dale, JT Lifjeld Behavioral Ecology 9 (6), 649-656, 1998 | 174 | 1998 |
| Influence of male and female quality on clutch size in tits (Parus spp.) T Slagsvold, JT Lifjeld Ecology 71 (4), 1258-1266, 1990 | 167 | 1990 |
| Effects of breeding density, synchrony, and experience on extrapair paternity in tree swallows PO Dunn, LA Whittingham, JT Lifjeld, RJ Robertson, PT Boag Behavioral Ecology 5 (2), 123-129, 1994 | 165 | 1994 |
| Genetic relationships in the peregrine falcon (Falco peregrinus) analysed by microsatellite DNA markers M Nesje, KH Røed, JT Lifjeld, P Lindberg, OF Steen Molecular Ecology 9 (1), 53-60, 2000 | 153 | 2000 |
| Low frequency of extra-pair paternity in pied flycatchers revealed by DNA fingerprinting JT Lifjeld, T Slagsvold, HM Lampe Behavioral Ecology and Sociobiology 29 (2), 95-101, 1991 | 149 | 1991 |
| The function of courtship feeding during incubation in the pied flycatcher Ficedula hypoleuca JT Lifjeld, T Slagsvold Animal Behaviour 34 (5), 1441-1453, 1986 | 147 | 1986 |
Arild JohnsenProfessor in zoological systematics and evolutionary biology at University of OsloVerified email at nhm.uio.no
