| Parasites, bright males, and the immunocompetence handicap I Folstad, AJ Karter The American Naturalist 139 (3), 603-622, 1992 | 3081 | 1992 |
| Cost of reproduction in a long-lived bird: incubation effort reduces immune function and future reproduction SA Hanssen, D Hasselquist, I Folstad, KE Erikstad Proceedings of the Royal Society B: Biological Sciences 272 (1567), 1039-1046, 2005 | 366 | 2005 |
| Adaptive or nonadaptive immunosuppression by sex hormones? C Wedekind, I Folstad The American Naturalist 143 (5), 936-938, 1994 | 317 | 1994 |
| Costs of immunity: immune responsiveness reduces survival in a vertebrate SA Hanssen, D Hasselquist, I Folstad, KE Erikstad Proceedings of the Royal Society of London. Series B: Biological Sciences …, 2004 | 286 | 2004 |
| Rapid adjustments of sperm characteristics in relation to social status G Rudolfsen, L Figenschou, I Folstad, H Tveiten, M Figenschou Proceedings of the Royal Society B: Biological Sciences 273 (1584), 325-332, 2006 | 181 | 2006 |
| Parasite avoidance: the cause of post-calving migrations in Rangifer? I Folstad, AC Nilssen, O Halvorsen, J Andersen Canadian Journal of Zoology 69 (9), 2423-2429, 1991 | 172 | 1991 |
| Sexual dichromatism and the immunocompetence handicap: an observational approach using Arctic charr F Skarstein, I Folstad Oikos, 359-367, 1996 | 147 | 1996 |
| Effects of ovarian fluid on sperm velocity in Arctic charr (Salvelinus alpinus) D Urbach, I Folstad, G Rudolfsen Behavioral Ecology and Sociobiology 57 (5), 438-444, 2005 | 122 | 2005 |
| Immune function and organochlorine pollutants in arctic breeding glaucous gulls JO Bustnes, SA Hanssen, I Folstad, KE Erikstad, D Hasselquist, ... Archives of environmental contamination and toxicology 47 (4), 530-541, 2004 | 111 | 2004 |
| Why do male reindeer (Rangifer t. tarandus) have higher abundance of second and third instar larvae of Hypoderma tarandi than females? I Folstad, AC Nilssen, O Halvorsen, J Andersen Oikos, 87-92, 1989 | 109 | 1989 |
| Is cod lekking or a promiscuous group spawner? JT Nordeide, I Folstad Fish and Fisheries 1 (1), 90-93, 2000 | 107 | 2000 |
| Secondary sex traits, parasites, immunity and ejaculate quality in the Arctic charr S Liljedal, I Folstad, F Skarstein Proceedings of the Royal Society of London. Series B: Biological Sciences …, 1999 | 104 | 1999 |
| Reduced immunocompetence and cost of reproduction in common eiders SA Hanssen, I Folstad, KE Erikstad Oecologia 136 (3), 457-464, 2003 | 99 | 2003 |
| Gastrointestinal nematodes depress food intake in naturally infected reindeer P Arneberg, I Folstad, AJ Karter Parasitology 112 (2), 213-219, 1996 | 93 | 1996 |
| White plumage reflects individual quality in female eiders SA Hanssen, I Folstad, KE Erikstad Animal Behaviour 71 (2), 337-343, 2006 | 92 | 2006 |
| Sexually selected color in male sticklebacks: a signal of both parasite exposure and parasite resistance? I Folstad, AM Hope, A Karter, A Skorping Oikos, 511-515, 1994 | 90 | 1994 |
| Sperm velocity influence paternity in the Atlantic cod (Gadus morhua L.) G Rudolfsen, L Figenschou, I Folstad, O Kleven Aquaculture Research 39 (2), 212-216, 2008 | 89 | 2008 |
| REGULAR ARTICLES/ARTICLES RÉGULIERS Whether to reproduce or not: immune suppression and costs of parasites during reproduction in the Arctic charr F Skarstein, I Folstad, S Liljedal Canadian Journal of Zoology 79 (2), 271-278, 2001 | 88 | 2001 |
| Is male germ line control creating avenues for female choice? I Folstad, P Skarstein Behavioral Ecology 8 (1), 109-112, 1997 | 87 | 1997 |
| Reindeer antlers: visual indicators of individual quality? E Markusson, I Folstad Oecologia 110 (4), 501-507, 1997 | 86 | 1997 |
Geir RudolfsenThe Arctic University Museum of Norway, University of TromsøVerified email at uit.no
