Publications in CRIStin


  • Brattli, Magnus Beyer; Egeland, Torvald; Nordeide, Jarle Tryti; Folstad, Ivar. Spawning behavior of Arctic charr (Salvelinus alpinus): Spawning synchrony, vibrational communication, and mate guarding. Ecology and Evolution 2018; Volum 8 (16). ISSN 2045-7758.s 8076 - 8087.s doi: 10.1002/ece3.4277.

  • Kleppe, April Snøfrid; Nordeide, Jarle Tryti; Rudolfsen, Geir; Figenschou, Lars; Larsen, Berner; Reiss, Katrin; Folstad, Ivar. No support for cryptic choice by ovarian fluid in an external fertilizer. (data) Ecology and Evolution 2018; Volum 8 (23). ISSN 2045-7758.s 11763 - 11774.s doi: 10.1002/ece3.4628.

  • Busch, Mari Veierud; Olaisen, Sandra; Bruksås, Ina Jeanette; Folstad, Ivar. Do mothers also "manipulate" grandparental care?. PeerJ 2018; Volum 6. ISSN 2167-8359.s e5924 - .s doi: 10.7717/peerj.5924.

  • Egeland, Torvald Blikra; Rudolfsen, Geir; Nordeide, Jarle Tryti; Folstad, Ivar. Status specific tailoring of sperm behavior in an external fertilizer. Frontiers in Ecology and Evolution 2016; Volum 4 (135). ISSN 2296-701X.s doi: 10.3389/fevo.2016.00135.

  • Egeland, Torvald Blikra; Rudolfsen, Geir; Nordeide, Jarle Tryti; Folstad, Ivar. On the relative effect of spawning asynchrony, sperm quantity, and sperm quality on paternity under sperm competition in an external fertilizer. Frontiers in Ecology and Evolution 2015; Volum 3. ISSN 2296-701X.s 1 - .s doi: 10.3389/fevo.2015.00077.

  • Rudolfsen, Geir; Vaz, Jonathan Serrano; Folstad, Ivar. Own,but not foreign seminal fluid inhibits sperm activation in a vertebrate with external fertilization. Frontiers in Ecology and Evolution 2015; Volum 3. ISSN 2296-701X.s doi: 10.3389/fevo.2015.00092.

  • Mikalsen, Åse Kristine Rognmo; Folstad, Ivar; Yoccoz, Nigel Gilles; Laeng, Bruno. The spectacular human nose: An amplifier of individual quality?. PeerJ 2014; Volum 2014 (1). ISSN 2167-8359.s doi: 10.7717/peerj.357.

  • Ali, Abdurhman Kelil; Primicerio, Raul; Folstad, Ivar. Female morphology and male mating success in the calanoid copepod, Eudiaptomus graciloides. Journal of Plankton Research 2014; Volum 36 (5). ISSN 0142-7873.s 1216 - 1223.s doi: 10.1093/plankt/fbu061.

  • Isaksen, Trond; Folstad, Ivar. Flowers for bees, autumn colours for whom? An experimental test with autumn colouration in mountain birches (Betula pubescens ssp. czerepanovii) as a signal against the moth Epirrita autumnata. Entomologia Experimentalis et Applicata 2014; Volum 152 (2). ISSN 0013-8703.s 141 - 147.s doi: 10.1111/eea.12209.

  • Figenschou, Lars; Folstad, Ivar; Rudolfsen, Geir; Hanssen, Sveinn Are; Kortet, Raine; Skau, Philip; Killie, Jan Eirik; Oskam, Irma Caroline; Strand, Harald. The relative effect of parasites and social status on sperm traits in Arctic charr. Behavioral Ecology 2013; Volum 24 (2). ISSN 1045-2249.s 497 - 504.s doi: 10.1093/beheco/ars190.

  • Olsen, Magne Neby; Folstad, Ivar. Ranking fluctuating asymmetry in a dot figure and the significant impact of imagining a face. Perception 2013; Volum 42 (3). ISSN 0301-0066.s 321 - 329.s doi: 10.1068/p7354.

  • Haugland, Thomas; Rudolfsen, Geir; Figenschou, Lars; Folstad, Ivar. Is the adipose fin and the lower jaw (kype) related to social dominance in male Arctic charr Salvelinus alpinus?. Journal of Fish Biology 2011; Volum 79 (4). ISSN 0022-1112.s 1076 - 1083.s doi: 10.1111/j.1095-8649.2011.03087.x.

  • Sørum, Vidar; Figenschou, Lars; Rudolfsen, Geir; Folstad, Ivar. Spawning behaviour of Arctic charr (Salvelinus alpinus): risk of sperm competition and timing of milt release for sneaker and dominant males. Behaviour 2011; Volum 148 (9-10). ISSN 0005-7959.s 1157 - 1172.s doi: 10.1163/000579511X596615.

  • Rødven, Rolf; Männikkö, Inkeri; Ims, Rolf Anker; Yoccoz, Nigel Gilles; Folstad, Ivar. Parasite intensity and fur coloration in reindeer calves - contrasting artificial and natural selection. Journal of Animal Ecology 2009; Volum 78 (3). ISSN 0021-8790.s 600 - 607.s doi: 10.1111/j.1365-2656.2008.01515.x.

  • Haugland, Thomas; Rudolfsen, Geir; Figenschou, Lars; Folstad, Ivar. Sperm velocity and its relation to social status in Arctic charr (Salvelinus alpinus). Animal Reproduction Science 2009; Volum 115 (1-4). ISSN 0378-4320.s 231 - 237.s doi: 10.1016/j.anireprosci.2008.11.004.

  • Eilertsen, Eirik Mack; Bårdsen, Bård-Jørgen; Liljedal, Ståle; Rudolfsen, Geir; Folstad, Ivar. Experimental evidence for paternal effects on offspring growth rate in Arctic charr (Salvelinus alpinus). Proceedings of the Royal Society of London. Biological Sciences 2009; Volum 276 (1654). ISSN 0962-8452.s 129 - 136.s doi: 10.1098/rspb.2008.0884.

  • Ali, A.K.; Primicerio, R.; Folstad, I.; Liljedal, S.; Berge, Jørgen. Morphological correlates of mating frequency and clutch size in wild caught female Eudiaptomus graciloides (Copepoda: Calanoida). Journal of Plankton Research 2009; Volum 31 (4). ISSN 0142-7873.s 389 - 397.s doi: 10.1093/plankt/fbn130.

  • Liljedal, Ståle; Rudolfsen, Geir; Folstad, Ivar. Factors predicting male fertilization success in an external fertilizer. Behavioral Ecology and Sociobiology 2008; Volum 62. ISSN 0340-5443.s 1805 - 1811.s doi: 10.1007/s00265-008-0609-1.

  • Rudolfsen, Geir; Figenschou, Lars; Folstad, Ivar; Kleven, Oddmund. Sperm velocity influence paternity in the Atlantic cod (Gadus morhua L.). Aquaculture Research 2008; Volum 39. ISSN 1355-557X.s 212 - 216.s doi: 10.1111/j.1365-2109.2007.01863.x.

  • Hanssen, Sveinn Are; Hasselquist, Dennis; Folstad, Ivar; Erikstad, K. E.. A label of health: a previous immune challenge is reflected in the expression of a female plumage trait. Biology Letters 2008; Volum 4. ISSN 1744-9561.s 379 - 381.s doi: 10.1098/rsbl.2008.0131.

  • Figenschou, Lars; Rudolfsen, Geir; Folstad, Ivar. Female Arctic charr do not show apparent benefits from exposing their eggs to sperm from dominant males. Journal of Fish Biology 2007; Volum 71. ISSN 0022-1112.s 284 - 289.s doi: 10.1111/j.1095-8649.2007.01477.

  • Ljetoff, Marika; Folstad, Ivar; Skarstein, Frode; Yoccoz, Nigel Gilles. Zebra stripes as an amplifier of individual quality?. Annales Zoologici Fennici 2007; Volum 44 (5). ISSN 0003-455X.s 368 - 376.

  • Bustnes, Jan Ove; Erikstad, K. E.; Hanssen, Sveinn A; Tveraa, Torkild; Folstad, Ivar; Skåre, Janneche Utne. Anti-parasite treatment removes negative effects of environmental pollutants on reproduction in an Arctic seabird. Proceedings of the Royal Society of London. Biological Sciences 2006; Volum 273. ISSN 0962-8452.s 3117 - 3122.

  • Hanssen, Sveinn Are; Folstad, Ivar; Erikstad, Kjell E. White plumage reflects individual quality in female eiders. Animal Behaviour 2006; Volum 71. ISSN 0003-3472.s 337 - 343.s doi: 10.1016/j.anbehav.2005.04.021.

  • Rudolfsen, Geir; Figenschou, Lars; Folstad, Ivar; Tveiten, Helge; Figenschou, Marie. Rapid adjustments of sperm characteristics in relation to social status. Proceedings of the Royal Society of London. Biological Sciences 2006; Volum 273. ISSN 0962-8452.s 325 - 332.s doi: 10.1098/rspb.2005.3305.

  • Bustnes, J.O.; Erikstad, Kjell E; Hanssen, Sveinn Are; Tveraa, T.; Folstad, Ivar; Skaare, Janneche Utne. Anti-parasite treatment removes negative effects of environmental pollutants on reproduction in an Arctic seabird. Proceedings of the Royal Society of London. Biological Sciences 2006; Volum 273. ISSN 0962-8452.s 3117 - 3122.

  • Kristiansen, Kai-Ove; Bustnes, JO; Folstad, Ivar; Helberg, Morten. Carotenoid coloration in great black-backed gull Larus marinus reflects individual quality. Journal of Avian Biology 2006; Volum 37. ISSN 0908-8857.

  • Vaz Serrano, Jonathan; Folstad, Ivar; Rudolfsen, Geir; Figenschou, Lars. Do the fastest sperm within an ejaculate swim faster in subordinate than in dominant males of Arctic char?. Canadian Journal of Zoology 2006; Volum 84. ISSN 0008-4301.s 1019 - 1024.

  • Skarstein, Frode; Folstad, Ivar; Rønning, Hans Petter. Spawning coloration, parasites and habitat selection in Salvelinus alpinus: initiating speciation by sexual selection. (fulltekst) Journal of Fish Biology 2005; Volum 67 (4). ISSN 0022-1112.s 969 - 980.

  • Rudolfsen, Geir; Figenschou, Lars; Folstad, Ivar; Nordeide, Jarle Tryti; Søreng, Espen. Potential fitness benefits from mate selection in the Atlantic cod (Gadus morhua). Journal of Evolutionary Biology 2005; Volum 18 (1). ISSN 1010-061X.s 172 - 179.

  • Skau, Philip; Folstad, Ivar. Does immunity regulate ejaculate quality and fertility in humans?. Behavioral Ecology 2005; Volum 16. ISSN 1045-2249.

  • Urbach, Davnah; Folstad, Ivar; Rudolfsen, Geir. Effects of ovarian fluid on sperm velocity in Arctic charr (Salvelinus alpinus). Behavioral Ecology and Sociobiology 2005; Volum 57. ISSN 0340-5443.s 438 - 444.s doi: 10.1007/s00265-004-0876-4.

  • Skarstein, Frode; Folstad, Ivar; Grahn, Mats; Liljedal, Ståle. Do fish eggs select sperm based on MHC-heterozygosity?. Behavioral Ecology and Sociobiology 2005; Volum 57 (4). ISSN 0340-5443.s 374 - 380.

  • Hanssen, Sveinn Are; Hasselquist, Dennis; Folstad, Ivar; Erikstad, Kjell E. Cost of reproduction in a long-lived bird: Incubation effort reduces immune function and future reproduction. Proceedings of the Royal Society of London. Biological Sciences 2005; Volum 272. ISSN 0962-8452.s 1039 - 1046.s doi: 10.1098/rspb.2005.3057.

  • Skarstein, F; Folstad, Ivar; Liljedal, Ståle; Grahn, M. MHC and fertilization success in the Arctic charr (Salvelinus alpinus). Behavioral Ecology and Sociobiology 2005; Volum 57. ISSN 0340-5443.

  • Rudolfsen, Geir; Figenschou, Lars; Folstad, Ivar; Nordeide, JT; Soreng, E. Potential fitness benefits from mate selection in the Atlantic cod (Gadus morhua). Journal of Evolutionary Biology 2005; Volum 18. ISSN 1010-061X.

  • Bustnes, Jan Ove; Hanssen, S. A.; Folstad, Ivar; Erikstad, K. E.; Hasselquist, D; Skåre, Janneche Utne. Immune Function and Organochlorine Pollutants in Arctic Breeding Glaucous Gulls. Archives of Environmental Contamination and Toxicology 2004; Volum 47 (4). ISSN 0090-4341.s 530 - 541.

  • Hagen, Snorre; Debeausse, S*; Yoccoz, Nigel Gilles; Folstad, Ivar. Autumn coloration as a signal of tree condition. Proceedings of the Royal Society of London. Biological Sciences 2004; Volum 271. ISSN 0962-8452.s S184 - S185.

  • Måsvær, Marte; Liljedal, Ståle; Folstad, Ivar. Are secondary sex traits, parasites and immunity related to variation in primary sex traits in the Arctic charr?. Proceedings of the Royal Society of London. Biological Sciences 2004; Volum 271. ISSN 0962-8452.s S40 - S42.

  • Hanssen, Sveinn Are; Hasselquist, Dennis; Folstad, Ivar; Erikstad, Kjell E. Costs of immunity: immune responsiveness reduces survival in a vertebrate. Proceedings of the Royal Society of London. Biological Sciences 2004; Volum 271 (1542). ISSN 0962-8452.s 925 - 930.s doi: 10.1098/rspb.2004.2678.

  • Bustnes, J.O.; Hanssen, Sveinn Are; Folstad, Ivar; Hasselquist, Dennis; Skaare, JU; Erikstad, Kjell E. Immune function and organochlorine pollutants in arctic breeding glaucous gulls. Archives of Environmental Contamination and Toxicology 2004; Volum 47. ISSN 0090-4341.s 530 - 541.s doi: 10.1007/s00244-003-3203-6.

  • Figenschou, Lars; Folstad, Ivar; Liljedal, Ståle. Lek fidelity of male Arctic charr. Canadian Journal of Zoology 2004; Volum 82 (8). ISSN 0008-4301.s 1278 - 1284.

  • Varpe, Øystein; Tveraa, Torkild; Folstad, Ivar. State-dependent parental care in the Antarctic petrel: responses to manipulated chick age during early chick rearing. Oikos 2004; Volum 106 (3). ISSN 0030-1299.s 479 - 488.

  • Skau, Philip; Folstad, Ivar. Do bacterial infections cause reduced ejaculate quality? A meta-analysis of antibiotic treatment of male infertility. Behavioral Ecology 2003; Volum 14 (1). ISSN 1045-2249.s 40 - 47.

  • Hanssen, Sveinn Are; Folstad, Ivar; Erikstad, Kjell E. Costs of parasites in common eiders: effects of an antiparasite treatment. Oikos 2003; Volum 100. ISSN 0030-1299.s 105 - 111.

  • Liljedal, Ståle; Folstad, Ivar. Milt quality, parasites and immune function in dominant and subordinate Arctic charr. Canadian Journal of Zoology 2003; Volum 81. ISSN 0008-4301.s 221 - 227.

  • Hagen, Snorre; Folstad, Ivar; Jakobsen, Stein. Bright authum coloration as a warning to insects. Ecology Letters 2003; Volum 6. ISSN 1461-023X.s 105 - 5.

  • Hanssen, Sveinn Are; Folstad, Ivar; Erikstad, Kjell E. Reduced immunocompetence and cost of reproduction in common eiders. Oecologia 2003; Volum 136. ISSN 0029-8549.s 457 - 464.s doi: 10.1007/s00442-003-1282-8.

  • Bustnes, J.O.; Folstad, Ivar; Erikstad, K. E.; Skaare, J. U.. Blood concentration of organochlorines and wing feather asymmetry in glaucous gulls. Functional Ecology 2002; Volum 16. ISSN 0269-8463.s 617 - 622.

  • Bustnes, Jan Ove; Folstad, Ivar; Erikstad, K. E.; Fjeld, M; Miland, ØO; Skåre, Janneche Utne. Blood concentration of organochlorine pollutants and wing feather asymmetry in glaucous gulls. Functional Ecology 2002; Volum 16. ISSN 0269-8463.s 617 - 622.

  • Uglem, Ingebrigt; Galloway, Trina Falck; Rosenqvist, Gunilla; Folstad, Ivar. Male dimorphism, sperm traits and immunology in the corkwing wrasse (Symphodus melops L.). Behavioral Ecology and Sociobiology 2001; Volum 50. ISSN 0340-5443.s 511 - 518.

  • Skarstein, Frode; Folstad, Ivar; Liljedal, Ståle. Whether to reproduce or not; immune supressions and costs of parasites during reproduction in the Arctic charr. Canadian Journal of Zoology 2001; Volum 79. ISSN 0008-4301.s 271 - 278.

  • Nordeide, Jarle; Folstad, Ivar. Is cod lekking or a promiscuous group spawner ?. Fish and Fisheries 2000; Volum 1. ISSN 1467-2960.s 90 - 93.

  • Nordeide, Jarle Tryti; Folstad, Ivar. Is cod lekking or a promiscuous group spawner?. Fish and Fisheries 2000; Volum 1 (1). ISSN 1467-2960.s 90 - 93.

  • Barber, Iain; Folstad, Ivar. Scooling, dusk flight and dance: social organisations as amplifiers of individual quality ?. Oikos 2000; Volum 89. ISSN 0030-1299.s 191 - 194.

  • Liljedal, Ståle; Folstad, Ivar; Skarstein, Frode. Secondary sex traits, parasites, immunity and ejaculate quality in the Arctic charr. Proceedings of the Royal Society of London. Biological Sciences 1999; Volum 266 (1431). ISSN 0962-8452.s 1893 - 1898.

  • Nilssen, Arne Claus; Haugerud, Rolf E; Folstad, Ivar. No interspecific covariation in intensities of macroparasites of reindeer, Rangifer tarandus (L.). Parasitology 1998; Volum 117. ISSN 0031-1820.s 273 - 281.

  • Engen, F.; Folstad, Ivar. Cod courtship song: a song at the expence of dance. Canadian Journal of Zoology 1998. ISSN 0008-4301.

  • Arneberg, P.; Folstad, Ivar. Predicting effects of naturally acquired abomasal nematode infections on growth rate, food intake and offspring growth in reindeer, using serum pepsinogen levels. Journal of Parasitology 1998. ISSN 0022-3395.

  • Lagesen, K.; Folstad, Ivar. Antler asymmetry and immunity in reindeer. Behavioral Ecology and Sociobiology 1998; Volum 44. ISSN 0340-5443.s 135 - 142.

  • Markusson, Eystein; Folstad, Ivar. Reindeer antlers: Visual indicators of individual quality ?. Oecologia 1997; Volum 110 (4). ISSN 0029-8549.s 501 - 507.

  • Brønseth, Torfinn; Folstad, Ivar. The effect of parasites on courtship dance in threespine sticklebacks: More than meets the eye ?. Canadian Journal of Zoology 1997; Volum 75 (4). ISSN 0008-4301.s 589 - 594.

  • Folstad, Ivar; Skarstein, Frode. Is male germ line control creating avenues for female choice ?. Behavioral Ecology 1997; Volum 8 (1). ISSN 1045-2249.s 109 - 112.

  • Folstad, Ivar; Arneberg, Per; Karter, Andrew. Antlers and parasites. Oecologia 1996; Volum 105 (4). ISSN 0029-8549.s 556 - 558.

  • Skarstein, Frode; Folstad, Ivar. Sexual dicromatism and the immunocompetence handicap: An observational approach using Arctic charr. Oikos 1996; Volum 76 (2). ISSN 0030-1299.s 359 - 367.

  • Arneberg, Per; Folstad, Ivar; Karter, Andrew. Gastrointestinal nematodes depress food intake in naturally infected reindeer. Parasitology 1996; Volum 112. ISSN 0031-1820.s 213 - 219.

  • Wedekind, Claus; Folstad, Ivar. Adaptive or nonadaptive immunosuppression by sex-hormones. American Naturalist 1994; Volum 143 (5). ISSN 0003-0147.s 936 - 938.

  • Anderson, John R.; Nilssen, Arne Claus; Folstad, Ivar. Mating behavior and thermoregulation of the reindeer warble fly, Hypoderma tarandi L. (Diptera: Oestridae). Journal of insect behavior 1994; Volum 7. ISSN 0892-7553.s 679 - 706.

  • Folstad, Ivar; Hope, Anne Mette; Karter, Andrew; Skorping, Arne. Sexually selected color in male sticklebacks - a signal of both parasite exposure and parasite resistance. Oikos 1994; Volum 69 (3). ISSN 0030-1299.s 511 - 515.

  • Karter, Andrew; Folstad, Ivar; Anderson, John. Abiotic factors influencing embryonic development, egg hatching and larval orientation in the reindeer warble fly, Hypoderma tarandi. Medical and Veterinary Entomology 1992; Volum 69 (4). ISSN 0269-283X.s 355 - 362.

  • Folstad, Ivar; Karter, Andrew. Parasites, bright males and the immunocompetence handicap. American Naturalist 1992; Volum 139 (3). ISSN 0003-0147.s 603 - 622.

  • Folstad, Ivar; Nilssen, Arne Claus; Halvorsen, Odd; Andersen, Johan Henr. Parasite avoidance: the cause of post-calving migrations in Rangifer?. Canadian Journal of Zoology 1991; Volum 69. ISSN 0008-4301.s 2423 - 2429.

  • Karter, Andrew; Folstad, Ivar. Defence behaviour of reindeer to flying parasitic Diptera. Rangifer 1989; Volum 9. ISSN 0333-256X.s 14 - 16.

  • Folstad, Ivar; Nilssen, Arne Claus; Halvorsen, Odd; Andersen, Johan Henr. Why do male reindeer (Rangifer t. tarandus) have higher abundance of second and third instar larvae of Hypoderma tarandi than females?. Oikos 1989; Volum 55. ISSN 0030-1299.s 87 - 92.

  • Hugo, Kristin; Folstad, Ivar; Karter, Andrew. 7 things you didn’t know about reindeer. (data) 2016.

  • Folstad, Ivar; Rudolfsen, Geir; Nordeide, Jarle Tryti; Egeland, Torvald Blikra; Magnus, Brattli. Røyevideo. 2016.

  • Blikås, Monika; Folstad, Ivar; Rudolfsen, Geir. Naturens verden. 2016.

  • Conn, Hastings; Folstad, Ivar; Rudolfsen, Geir; Egeland, Torvald Blikra; Nordeide, Jarle Tryti. Fish sperm race for reproductive success https://blog.frontiersin.org/2016/12/22/fish-sperm-race-for-reproductive-success/. 2016.

  • Folstad, Ivar. Under streken. 2015.

  • Morsund, Ewa; Folstad, Ivar. Dette blir vi tiltrukket av. 2015.

  • Folstad, Ivar. Nesefin. 2014.

  • Folstad, Ivar. When publishing an article takes forever...for no good reason. (data) 2014.

  • Folstad, Ivar; Bjørnstad, Lasse. How important is the nose?. (data) 2014.

  • Folstad, Ivar; Bjørnstad, Lasse. Så vigtig er næsen for et smukt ansikt. (data) 2014.

  • Folstad, Ivar; Goldberg, Jonah. Science! What the shape of your nose says about your quality as a mate. (data) 2014.

  • Folstad, Ivar; Solhaug, Randi M.. Blir vi tiltrukket av neser?. 2014.

  • Folstad, Ivar; Solhaug, Randi M.. Blir vi tiltrukket av neser?. (data) 2014.

  • Emberland, Torkild; Folstad, Ivar. Derfor velger single å operere akkurat denne delen av kroppen. (data) 2014.

  • Folstad, Ivar; Seriously, Sience. What the shape of your nose says about your quality as a mate. (data) 2014.

  • Bjørnstad, Lasse; Folstad, Ivar. Hvor viktig er nesa?. 2014.

  • Tøhaug, Pia; Folstad, Ivar. Nesens rolle. 2014.

  • Emberland, Torkild; Folstad, Ivar. Ny studie fra UiT-forskere: SLIK VIL VI SE UT. 2014.

  • Jo, Valseth; Folstad, Ivar. Nå er nesen viktigst. (data) 2014.

  • Folstad, Ivar; Ivar, Grydeland. Ei blot til pynt.. 2009.

  • Trond, Amundsen; Folstad, Ivar; Giske, Jarl; Slagsvold, Tore; Nils, Stenseth. "Ida" er oversolgt. Aftenposten (morgenutg. : trykt utg.) 2009. ISSN 0804-3116.

  • Amundsen, Trond; Folstad, Ivar; Giske, Jarl; Slagsvold, Tore; Stenseth, Nils Christian. "Ida" er oversolgt. (fulltekst) Aftenposten (morgenutg. : trykt utg.) 2009. ISSN 0804-3116.

  • Folstad, Ivar. Evolusjonsbiologi - vanskelig å forstå. Nordlys 2009. ISSN 0805-5440.s 3 - 3.

  • Folstad, Ivar. Evolusjonsteori - vanskelig å forstå. Helgeland Arbeiderblad 2009.

  • Asle, Rønning; Folstad, Ivar. Sjimpanser vil ikke samarbeide. 2009.

  • Sojtaric, Maja; Folstad, Ivar. En lang kjede av menneskehet. 2009.

  • Folstad, Ivar; Ivar, Grydeland. Den friskeste bjørka gulner først. 2009.

  • Folstad, Ivar; Ivar, Grydeland. Sebramysterium løst i Tromsø?. 2009.

  • Folstad, Ivar. Realfagssatsning i barneskolen. 2008.

  • Solhaug, Randi; Folstad, Ivar. Det vanskelige partnervalget - om infeksjon og attraksjon. 2008.

  • Solhaug, randi merete; Folstad, Ivar. Om attraksjon og infeksjon. 2008.

  • Folstad, Ivar. I Darwins fotspor. 2007.

  • Folstad, Ivar; Hanssen, Sveinn Are. Ærfugl i hardt vær. 2007.

  • Figenschou, Lars; Folstad, Ivar. Male sperm control. International Society for Behavioral Ecology 2006-07-23 - 2006-07-28 2006.

  • Hanssen, Sveinn Are; Folstad, Ivar; Erikstad, Kjell E. White plumage reflects reproductive potential and immunocompetence in common eiders. ISBE 2006-07-21 - 2006-07-27 2006.

  • Hanssen, Sveinn Are; Hasselquist, D; Folstad, Ivar; Erikstad, Kjell E. Cost of immunity: immune responsiveness reduces return rate in female eiders. The International Society for Behavioral Ecology 2004-07-10 - 2004-07-15 2004.

  • Rudolfsen, Geir; Figenschou, Lars; Folstad, Ivar; Nordeide, Jarle Tryti; Søreng, Espen. Potential fitness benefits from mate selection in the Atlantic cod (Gadus morhua). ISBE 2004 Finland July 10 - 15 Jyvaskyla, Finland 2004-07-10 - 2004-07-15 2004.

  • Figenschou, Lars; Folstad, Ivar; Liljedal, Ståle. On lek fidelity of male Arctic charr. ISBE Conference 2004-07-10 - 2004-07-15 2004.

  • Urbach, D; Palmen, A; Folstad, Ivar. Sexual selection and immunocompetence in the arctic charr Salvelinus alpinus: MHC-based cryptic female choice in ovarian fluid?. International Society for Behavioral Ecology 2004-07-10 - 2004-07-15 2004.

  • Rudolfsen, Geir; Figenschou, L; Folstad, Ivar; Nordeide, JT; Søreng, E. Potential fitness benefits from mate selection in the atlantic cod (Gadus morhua). International Society for Behavioral Ecology 2004-07-10 - 2004-07-15 2004.

  • Ljetoff, M; Folstad, Ivar. Zebra stripes as an amplifier of individual quality?. International Society for Behavioral Ecology 2004-07-10 - 2004-07-15 2004.

  • Figenschou, L; Folstad, Ivar; Liljedal, Ståle. On lek fidelity of male arctic charr. International Society for Behavioral Ecology 2004-07-10 - 2004-07-15 2004.

  • Urbach, D.; Rudolfsen, Geir; Folstad, Ivar. Sperm motility in ovarian fluid: Cryptic female choice in Arctic Charr?. Poster presentation at workshop on Evolutionary ecology of the pre-zygotic stage in animals and plants, Monte Verita, Ascona, Switzerland 2003-02-16 - 2003-02-21 2003.

  • Palmén, Andreas; Liljedal, Ståle; Grahn, Mats; Folstad, Ivar. Spatial heterogeneity in MHC polymorphism and intensity of multiple parasite infection in Arctic charr. European Society for Evolutionary Biology 2003-08-18 - 2003-08-24 2003.

  • Folstad, Ivar. Gode fedre grynter best. 2003.

  • Nordeide, Jarle Tryti; Folstad, Ivar. Is cod lekking or a promiscuous group spawner?. ASAB Summer Meeting 1999 1999.

  • Nordeide, Jarle Tryti; Folstad, Ivar. On cod mating behaviour. 7th International Behavioral Ecology Congress 1999.

  • Member of research group