| Year |
Citation |
Score |
| 2023 |
Lifjeld JT, de Gabriel Hernando M, Fuertes Marcos B, Grønstøl G, Anmarkrud JA, Matschiner M, Leder EH. Rapid sperm length divergence in a polygynandrous passerine: a mechanism of cryptic speciation? Evolution; International Journal of Organic Evolution. 77: 2352-2364. PMID 37624670 DOI: 10.1093/evolut/qpad146 |
0.399 |
|
| 2022 |
Cramer ERA, Yilma ZB, Lifjeld JT. Selection on sperm size in response to promiscuity and variation in female sperm storage organs. Journal of Evolutionary Biology. PMID 36357998 DOI: 10.1111/jeb.14120 |
0.542 |
|
| 2022 |
Lifjeld JT, Slagsvold T. Female extra-pair copulation for direct fitness benefits: A cautionary note. Proceedings of the National Academy of Sciences of the United States of America. 119: e2207108119. PMID 35858461 DOI: 10.1073/pnas.2207108119 |
0.699 |
|
| 2022 |
Lifjeld JT, Kleven O, Fossøy F, Jacobsen F, Laskemoen T, Rudolfsen G, Robertson RJ. When Older Males Sire More Offspring-Increased Attractiveness or Higher Fertility? Behavioral Ecology and Sociobiology. 76: 61. PMID 35535127 DOI: 10.1007/s00265-022-03170-0 |
0.516 |
|
| 2022 |
Rowe M, van Oort A, Brouwer L, Lifjeld JT, Webster MS, Welklin JF, Baldassarre DT. Sperm Numbers as a Paternity Guard in a Wild Bird. Cells. 11. PMID 35053349 DOI: 10.3390/cells11020231 |
0.57 |
|
| 2021 |
Cramer ERA, Grønstøl G, Maxwell L, Kovach AI, Lifjeld JT. Sperm length divergence as a potential prezygotic barrier in a passerine hybrid zone. Ecology and Evolution. 11: 9489-9497. PMID 34306637 DOI: 10.1002/ece3.7768 |
0.527 |
|
| 2021 |
Cramer ERA, Garcia-Del-Rey E, Johannessen LE, Laskemoen T, Marthinsen G, Johnsen A, Lifjeld JT. Longer Sperm Swim More Slowly in the Canary Islands Chiffchaff. Cells. 10. PMID 34073133 DOI: 10.3390/cells10061358 |
0.363 |
|
| 2020 |
Omotoriogun TC, Albrecht T, Gohli J, Hořák D, Johannessen LE, Johnsen A, Kreisinger J, Marki PZ, Ottosson U, Rowe M, Sedláček O, Lifjeld JT. Sperm length variation among Afrotropical songbirds reflects phylogeny rather than adaptations to the tropical environment. Zoology (Jena, Germany). 140: 125770. PMID 32298992 DOI: 10.1016/J.Zool.2020.125770 |
0.416 |
|
| 2019 |
Thomas JE, Carvalho GR, Haile J, Rawlence NJ, Martin MD, Ho SY, Sigfússon AÞ, Jósefsson VA, Frederiksen M, Linnebjerg JF, Samaniego Castruita JA, Niemann J, Sinding MS, Sandoval-Velasco M, Soares AE, ... ... Lifjeld JT, et al. Demographic reconstruction from ancient DNA supports rapid extinction of the great auk. Elife. 8. PMID 31767056 DOI: 10.7554/Elife.47509 |
0.302 |
|
| 2019 |
Lindsay WR, Andersson S, Bererhi B, Höglund J, Johnsen A, Kvarnemo C, Leder EH, Lifjeld JT, Ninnes CE, Olsson M, Parker GA, Pizzari T, Qvarnström A, Safran RJ, Svensson O, et al. Endless forms of sexual selection. Peerj. 7: e7988. PMID 31720113 DOI: 10.7717/Peerj.7988 |
0.391 |
|
| 2019 |
Rekdal SL, Anmarkrud JA, Lifjeld JT, Johnsen A. Extra-pair mating in a passerine bird with highly duplicated MHC class II: Preference for the golden mean. Molecular Ecology. PMID 31614034 DOI: 10.1111/Mec.15273 |
0.519 |
|
| 2019 |
Lifjeld JT, Gohli J, Albrecht T, Garcia-Del-Rey E, Johannessen LE, Kleven O, Marki PZ, Omotoriogun TC, Rowe M, Johnsen A. Evolution of female promiscuity in Passerides songbirds. Bmc Evolutionary Biology. 19: 169. PMID 31412767 DOI: 10.1186/S12862-019-1493-1 |
0.561 |
|
| 2019 |
Støstad HN, Rowe M, Johnsen A, Lifjeld JT. Sperm head abnormalities are more frequent in songbirds with more helical sperm: A possible trade-off in sperm evolution. Journal of Evolutionary Biology. PMID 30945783 DOI: 10.1111/Jeb.13446 |
0.407 |
|
| 2019 |
Johnsen A, Fiske P, Amundsen T, Lifjeld JT, Rohde PA. Colour bands, mate choice and paternity in the bluethroat. Animal Behaviour. 59: 111-119. PMID 10640373 DOI: 10.1006/Anbe.1999.1274 |
0.791 |
|
| 2019 |
Lifjeld JT, Slagsvold T, Ellegren H. Experimentally reduced paternity affects paternal effort and reproductive success in pied flycatchers Animal Behaviour. 55: 319-29. PMID 9480700 DOI: 10.1006/Anbe.1997.0632 |
0.747 |
|
| 2019 |
Johnsen A, Lifjeld JT, Rohde PA. Coloured leg bands affect male mate-guarding behaviour in the bluethroat Animal Behaviour. 54: 121-30. PMID 9268442 DOI: 10.1006/Anbe.1996.0437 |
0.545 |
|
| 2019 |
Lifjeld JT, Slagsvold T, Ellegren H. Experimental mate switching in pied flycatchers: male copulatory access and fertilization success Animal Behaviour. 53: 1225-32. PMID 9236018 DOI: 10.1006/Anbe.1996.0430 |
0.73 |
|
| 2019 |
Cramer ERA, Rowe M, Eroukhmanoff F, Lifjeld JT, Sætre G, Johnsen A. Measuring sperm swimming performance in birds: effects of dilution, suspension medium, mechanical agitation, and sperm number Journal of Ornithology. 160: 1053-1063. DOI: 10.1007/S10336-019-01672-9 |
0.692 |
|
| 2018 |
Støstad HN, Johnsen A, Lifjeld JT, Rowe M. Sperm head morphology is associated with sperm swimming speed: A comparative study of songbirds using electron microscopy. Evolution; International Journal of Organic Evolution. 72: 1918-1932. PMID 30015353 DOI: 10.1111/Evo.13555 |
0.419 |
|
| 2017 |
Johnsen A, Pauliny A, Lifjeld JT, Blomqvist D. Is telomere length associated with mate choice in a songbird with a high rate of extra-pair paternity? Plos One. 12: e0182446. PMID 28783753 DOI: 10.1371/Journal.Pone.0182446 |
0.503 |
|
| 2016 |
Cramer ER, Stensrud E, Marthinsen G, Hogner S, Johannessen LE, Laskemoen T, Eybert MC, Slagsvold T, Lifjeld JT, Johnsen A. Sperm performance in conspecific and heterospecific female fluid. Ecology and Evolution. PMID 26855769 DOI: 10.1002/Ece3.1977 |
0.702 |
|
| 2016 |
Supriya K, Rowe M, Laskemoen T, Mohan D, Price TD, Lifjeld JT. Early diversification of sperm size in the evolutionary history of the Old World Leaf Warblers (Phylloscopidae). Journal of Evolutionary Biology. PMID 26781541 DOI: 10.1111/Jeb.12826 |
0.447 |
|
| 2016 |
Støstad HN, Rekdal SL, Kleven O, Laskemoen T, Marthinsen G, Johnsen A, Lifjeld JT. Weak geographical structure in sperm morphology across the range of two willow warbler Phylloscopus trochilus subspecies in Scandinavia Journal of Avian Biology. DOI: 10.1111/Jav.00981 |
0.461 |
|
| 2015 |
Lifjeld JT. When taxonomy meets genomics: lessons from a common songbird. Molecular Ecology. 24: 2901-3. PMID 26095582 DOI: 10.1111/Mec.13244 |
0.317 |
|
| 2015 |
Dale S, Lifjeld JT, Rowe M. Commonness and ecology, but not bigger brains, predict urban living in birds. Bmc Ecology. 15: 12. PMID 25888385 DOI: 10.1186/S12898-015-0044-X |
0.629 |
|
| 2015 |
Rowe M, Albrecht T, Cramer ER, Johnsen A, Laskemoen T, Weir JT, Lifjeld JT. Postcopulatory sexual selection is associated with accelerated evolution of sperm morphology. Evolution; International Journal of Organic Evolution. 69: 1044-52. PMID 25655075 DOI: 10.1111/Evo.12620 |
0.493 |
|
| 2015 |
Cramer ER, Laskemoen T, Stensrud E, Rowe M, Haas F, Lifjeld JT, Saetre GP, Johnsen A. Morphology-function relationships and repeatability in the sperm of Passer sparrows. Journal of Morphology. 276: 370-7. PMID 25427840 DOI: 10.1002/Jmor.20346 |
0.753 |
|
| 2015 |
Gohli J, Leder EH, Garcia-Del-Rey E, Johannessen LE, Johnsen A, Laskemoen T, Popp M, Lifjeld JT. The evolutionary history of Afrocanarian blue tits inferred from genomewide SNPs. Molecular Ecology. 24: 180-91. PMID 25407440 DOI: 10.1111/Mec.13008 |
0.335 |
|
| 2015 |
Omotoriogun TC, Laskemoen T, Rowe M, Albrecht T, Bowie RCK, Sedláček O, Hořák D, Ottosson U, Lifjeld JT. Variation in sperm morphology among Afrotropical sunbirds Ibis. DOI: 10.1111/Ibi.12334 |
0.517 |
|
| 2015 |
Omotoriogun TC, Albrecht T, Hořák D, Laskemoen T, Ottosson U, Rowe M, Sedláček O, Lifjeld JT. Sperm size evolution in African greenbuls (Passeriformes: Pycnonotidae) Biological Journal of the Linnean Society. DOI: 10.1111/Bij.12663 |
0.473 |
|
| 2015 |
Gohli J, Lifjeld JT, Albrecht T. Migration distance is positively associated with sex-linked genetic diversity in passerine birds Ethology Ecology and Evolution. DOI: 10.1080/03949370.2015.1018954 |
0.397 |
|
| 2015 |
Hogner S, Riera AB, Wold M, Lifjeld JT, Johnsen A. Intergeneric hybridization between Common Redstart Phoenicurus phoenicurus and Whinchat Saxicola rubetra revealed by molecular analyses Journal of Ornithology. 156: 829-836. DOI: 10.1007/S10336-015-1165-X |
0.367 |
|
| 2014 |
Larson KW, Liedvogel M, Addison B, Kleven O, Laskemoen T, Lifjeld JT, Lundberg M, Akesson S, Bensch S. Allelic variation in a willow warbler genomic region is associated with climate clines. Plos One. 9: e95252. PMID 24788148 DOI: 10.1371/Journal.Pone.0095252 |
0.302 |
|
| 2014 |
Wojczulanis-Jakubas K, Kilikowska A, Harding AMA, Jakubas D, Karnovsky NJ, Steen H, Strøm H, Welcker J, Gavrilo M, Lifjeld JT, Johnsen A. Weak population genetic differentiation in the most numerous Arctic seabird, the little auk Polar Biology. 37: 621-630. DOI: 10.1007/S00300-014-1462-5 |
0.311 |
|
| 2014 |
Cramer ERA, Laskemoen T, Eroukhmanoff F, Haas F, Hermansen JS, Lifjeld JT, Rowe M, Sætre GP, Johnsen A. Testing a post-copulatory pre-zygotic reproductive barrier in a passerine species pair Behavioral Ecology and Sociobiology. 68: 1133-1144. DOI: 10.1007/S00265-014-1724-9 |
0.739 |
|
| 2013 |
Lifjeld JT, Gohli J, Johnsen A. Promiscuity, sexual selection, and genetic diversity: a reply to Spurgin. Evolution; International Journal of Organic Evolution. 67: 3073-4. PMID 24094357 DOI: 10.1111/Evo.12211 |
0.478 |
|
| 2013 |
Hermosell IG, Laskemoen T, Rowe M, Møller AP, Mousseau TA, Albrecht T, Lifjeld JT. Patterns of sperm damage in Chernobyl passerine birds suggest a trade-off between sperm length and integrity. Biology Letters. 9: 20130530. PMID 24088561 DOI: 10.1098/Rsbl.2013.0530 |
0.424 |
|
| 2013 |
Gohli J, Anmarkrud JA, Johnsen A, Kleven O, Borge T, Lifjeld JT. Female promiscuity is positively associated with neutral and selected genetic diversity in passerine birds. Evolution; International Journal of Organic Evolution. 67: 1406-19. PMID 23617917 DOI: 10.1111/Evo.12045 |
0.492 |
|
| 2013 |
Rowe M, Laskemoen T, Johnsen A, Lifjeld JT. Evolution of sperm structure and energetics in passerine birds. Proceedings. Biological Sciences / the Royal Society. 280: 20122616. PMID 23282997 DOI: 10.1098/Rspb.2012.2616 |
0.434 |
|
| 2013 |
Albrecht T, Kleven O, Kreisinger J, Laskemoen T, Omotoriogun TC, Ottosson U, Reif J, Sedlá?ek O, Ho?ák D, Robertson RJ, Lifjeld JT. Sperm competition in tropical versus temperate zone birds. Proceedings. Biological Sciences / the Royal Society. 280: 20122434. PMID 23235706 DOI: 10.1098/Rspb.2012.2434 |
0.438 |
|
| 2013 |
Lifjeld JT, Hoenen A, Johannessen LE, Laskemoen T, Lopes RJ, Rodrigues P, Rowe M. The Azores bullfinch (Pyrrhula murina) has the same unusual and size-variable sperm morphology as the Eurasian bullfinch (Pyrrhula pyrrhula) Biological Journal of the Linnean Society. 108: 677-687. DOI: 10.1111/J.1095-8312.2012.02040.X |
0.478 |
|
| 2013 |
Rowe M, Czirják GÁ, Lifjeld JT, Giraudeau M. Lysozyme-associated bactericidal activity in the ejaculate of a wild passerine Biological Journal of the Linnean Society. 109: 92-100. DOI: 10.1111/Bij.12044 |
0.493 |
|
| 2013 |
Laskemoen T, Kleven O, Johannessen LE, Fossøy F, Robertson RJ, Lifjeld JT. Repeatability of sperm size and motility within and between seasons in the Barn Swallow (Hirundo rustica) Journal of Ornithology. 154: 955-963. DOI: 10.1007/S10336-013-0961-4 |
0.464 |
|
| 2013 |
Garcia-del-Rey E, Marthinsen G, Calabuig P, Estévez L, Johannessen LE, Johnsen A, Laskemoen T, Lifjeld JT. Reduced genetic diversity and sperm motility in the endangered Gran Canaria Blue Chaffinch Fringilla teydea polatzeki | Eingeschränkte genetische Vielfalt und Spermienbeweglichkeit beim vom Aussterben bedrohten Teide- Blaufinken (Fringilla teydea polatzeki) auf Gran Canaria Journal of Ornithology. 154: 761-768. DOI: 10.1007/S10336-013-0940-9 |
0.437 |
|
| 2013 |
Cramer ERA, Laskemoen T, Kleven O, LaBarbera K, Lovette IJ, Lifjeld JT. No evidence that sperm morphology predicts paternity success in wild house wrens Behavioral Ecology and Sociobiology. 67: 1845-1853. DOI: 10.1007/S00265-013-1594-6 |
0.565 |
|
| 2013 |
Hogner S, Laskemoen T, Lifjeld JT, Pavel V, Chutný B, García J, Eybert MC, Matsyna E, Johnsen A. Rapid sperm evolution in the bluethroat (Luscinia svecica) subspecies complex Behavioral Ecology and Sociobiology. 67: 1205-1217. DOI: 10.1007/S00265-013-1548-Z |
0.49 |
|
| 2013 |
Laskemoen T, Albrecht T, Bonisoli-Alquati A, Cepak J, de Lope F, Hermosell IG, Johannessen LE, Kleven O, Marzal A, Mousseau TA, Møller AP, Robertson RJ, Rudolfsen G, Saino N, Vortman Y, ... Lifjeld JT, et al. Variation in sperm morphometry and sperm competition among barn swallow (Hirundo rustica) populations Behavioral Ecology and Sociobiology. 67: 301-309. DOI: 10.1007/S00265-012-1450-0 |
0.45 |
|
| 2012 |
Kvie KS, Hogner S, Aarvik L, Lifjeld JT, Johnsen A. Deep sympatric mtDNA divergence in the autumnal moth (Epirrita autumnata). Ecology and Evolution. 3: 126-44. PMID 23404314 DOI: 10.1002/Ece3.434 |
0.317 |
|
| 2012 |
Hogner S, Laskemoen T, Lifjeld JT, Porkert J, Kleven O, Albayrak T, Kabasakal B, Johnsen A. Deep sympatric mitochondrial divergence without reproductive isolation in the common redstart Phoenicurus phoenicurus. Ecology and Evolution. 2: 2974-88. PMID 23301165 DOI: 10.1002/Ece3.398 |
0.336 |
|
| 2012 |
Lifjeld JT, Laskemoen T, Kleven O, Pedersen AT, Lampe HM, Rudolfsen G, Schmoll T, Slagsvold T. No evidence for pre-copulatory sexual selection on sperm length in a passerine bird. Plos One. 7: e32611. PMID 22384277 DOI: 10.1371/Journal.Pone.0032611 |
0.687 |
|
| 2012 |
Garcia-Del-Rey E, Kleven O, Lifjeld JT. Extrapair paternity in insular African Blue TitsCyanistes teneriffaeis no less frequent than in continental Eurasian Blue TitsCyanistes caeruleus Ibis. 154: 862-867. DOI: 10.1111/J.1474-919X.2012.01241.X |
0.422 |
|
| 2012 |
Cramer ERA, Laskemoen T, Kleven O, Lifjeld JT. Sperm length variation in House Wrens Troglodytes aedon Journal of Ornithology. 154: 129-138. DOI: 10.1007/S10336-012-0878-3 |
0.515 |
|
| 2012 |
Øigarden T, Lifjeld JT. Primary sex ratios vary with clutch size in the size-dimorphic White-throated Dipper Cinclus cinclus Journal of Ornithology. 154: 91-97. DOI: 10.1007/S10336-012-0874-7 |
0.614 |
|
| 2012 |
Johnsen A, Carter KL, Delhey K, Lifjeld JT, Robertson RJ, Kempenaers B. Laying-order effects on sperm numbers and on paternity: Comparing three passerine birds with different life histories Behavioral Ecology and Sociobiology. 66: 181-190. DOI: 10.1007/S00265-011-1265-4 |
0.537 |
|
| 2011 |
Lifjeld JT, Kleven O, Jacobsen F, McGraw KJ, Safran RJ, Robertson RJ. Age before beauty? Relationships between fertilization success and age-dependent ornaments in barn swallows. Behavioral Ecology and Sociobiology. 65: 1687-1697. PMID 21949464 DOI: 10.1007/S00265-011-1176-4 |
0.584 |
|
| 2011 |
Anmarkrud JA, Kleven O, Augustin J, Bentz KH, Blomqvist D, Fernie KJ, Magrath MJ, Pärn H, Quinn JS, Robertson RJ, Szép T, Tarof S, Wagner RH, Lifjeld JT. Factors affecting germline mutations in a hypervariable microsatellite: a comparative analysis of six species of swallows (Aves: Hirundinidae). Mutation Research. 708: 37-43. PMID 21291898 DOI: 10.1016/J.Mrfmmm.2011.01.006 |
0.417 |
|
| 2011 |
Johannessen LE, Ke D, Lu X, Lifjeld JT. Geographical variation in patterns of parentage and relatedness in the co-operatively breeding Ground Tit Parus humilis Ibis. 153: 373-383. DOI: 10.1111/J.1474-919X.2011.01115.X |
0.417 |
|
| 2010 |
Lifjeld JT, Laskemoen T, Kleven O, Albrecht T, Robertson RJ. Sperm length variation as a predictor of extrapair paternity in passerine birds. Plos One. 5: e13456. PMID 20976147 DOI: 10.1371/Journal.Pone.0013456 |
0.427 |
|
| 2010 |
Van den Steen E, Pinxten R, Covaci A, Carere C, Eeva T, Heeb P, Kempenaers B, Lifjeld JT, Massa B, Norte AC, Orell M, Sanz JJ, Senar JC, Sorace A, Eens M. The use of blue tit eggs as a biomonitoring tool for organohalogenated pollutants in the European environment. The Science of the Total Environment. 408: 1451-7. PMID 20071006 DOI: 10.1016/J.Scitotenv.2009.12.028 |
0.312 |
|
| 2010 |
Øigarden T, Borge T, Lifjeld JT. Extrapair paternity and genetic diversity: the white-throated dipper Cinclus cinclus Journal of Avian Biology. 41: 248-257. DOI: 10.1111/J.1600-048X.2009.04847.X |
0.329 |
|
| 2010 |
Johnsen A, Lifjeld JT. Unattractive Males Guard Their Mates More Closely: an Experiment with Bluethroats (Aves, Turdidae: Luscinia s. svecica) Ethology. 101: 200-212. DOI: 10.1111/J.1439-0310.1995.Tb00358.X |
0.64 |
|
| 2010 |
Pierce EP, Oring LW, Røskaft E, Lifjeld JT. Why don't female purple sandpipers perform brood care? A removal experiment Behavioral Ecology. 21: 275-283. DOI: 10.1093/Beheco/Arp187 |
0.554 |
|
| 2010 |
Johnsen A, Rindal E, Ericson PGP, Zuccon D, Kerr KCR, Stoeckle MY, Lifjeld JT. DNA barcoding of Scandinavian birds reveals divergent lineages in trans-Atlantic species Journal of Ornithology. 151: 565-578. DOI: 10.1007/S10336-009-0490-3 |
0.336 |
|
| 2010 |
Lifjeld JT, Marthinsen G, Myklebust M, Dawson DA, Johnsen A. A wild Marsh Warbler × Sedge Warbler hybrid (Acrocephalus palustris × A. schoenobaenus) in Norway documented with molecular markers Journal of Ornithology. 151: 513-517. DOI: 10.1007/S10336-009-0469-0 |
0.333 |
|
| 2010 |
Laskemoen T, Kleven O, Fossøy F, Robertson RJ, Rudolfsen G, Lifjeld JT. Sperm quantity and quality effects on fertilization success in a highly promiscuous passerine, the tree swallow Tachycineta bicolor Behavioral Ecology and Sociobiology. 64: 1473-1483. DOI: 10.1007/S00265-010-0962-8 |
0.546 |
|
| 2009 |
Fossøy F, Johnsen A, Lifjeld JT. Cell-mediated immunity and multi-locus heterozygosity in bluethroat nestlings. Journal of Evolutionary Biology. 22: 1954-60. PMID 19583700 DOI: 10.1111/J.1420-9101.2009.01790.X |
0.306 |
|
| 2009 |
Kleven O, Fossøy F, Laskemoen T, Robertson RJ, Rudolfsen G, Lifjeld JT. Comparative evidence for the evolution of sperm swimming speed by sperm competition and female sperm storage duration in passerine birds. Evolution; International Journal of Organic Evolution. 63: 2466-73. PMID 19453726 DOI: 10.1111/J.1558-5646.2009.00725.X |
0.543 |
|
| 2009 |
Kleven O, Laskemoen T, Lifjeld JT. Sperm length in sand martinsRiparia riparia: a comment on Helfenstein et al Journal of Avian Biology. 40: 241-242. DOI: 10.1111/J.1600-048X.2009.04766.X |
0.338 |
|
| 2009 |
Slagsvold T, Lifjeld JT. Variation in plumage colour of the Great tit Parus major in relation to habitat, season and food Journal of Zoology. 206: 321-328. DOI: 10.1111/J.1469-7998.1985.Tb05661.X |
0.643 |
|
| 2009 |
Wojczulanis-Jakubas K, Jakubas D, Øigarden T, Lifjeld JT. Extrapair copulations are frequent but unsuccessful in a highly colonial seabird, the little auk, Alle alle Animal Behaviour. 77: 433-438. DOI: 10.1016/J.Anbehav.2008.10.019 |
0.635 |
|
| 2009 |
Crowe SA, Kleven O, Delmore KE, Laskemoen T, Nocera JJ, Lifjeld JT, Robertson RJ. Paternity assurance through frequent copulations in a wild passerine with intense sperm competition Animal Behaviour. 77: 183-187. DOI: 10.1016/J.Anbehav.2008.09.024 |
0.658 |
|
| 2009 |
Anker-Nilssen T, Kleven O, Aarvak T, Lifjeld JT. Low or no occurrence of extra-pair paternity in the Black Guillemot Cepphus grylle Journal of Ornithology. 151: 247-250. DOI: 10.1007/S10336-009-0450-Y |
0.342 |
|
| 2009 |
Dunn PO, Lifjeld JT, Whittingham LA. Multiple paternity and offspring quality in tree swallows Behavioral Ecology and Sociobiology. 63: 911-922. DOI: 10.1007/S00265-009-0734-5 |
0.56 |
|
| 2008 |
Marthinsen G, Wennerberg L, Lifjeld JT. Low support for separate species within the redpoll complex (Carduelis flammea-hornemanni-cabaret) from analyses of mtDNA and microsatellite markers. Molecular Phylogenetics and Evolution. 47: 1005-17. PMID 18439841 DOI: 10.1016/J.Ympev.2008.03.027 |
0.338 |
|
| 2008 |
Kleven O, Laskemoen T, Fossøy F, Robertson RJ, Lifjeld JT. Intraspecific variation in sperm length is negatively related to sperm competition in passerine birds. Evolution; International Journal of Organic Evolution. 62: 494-9. PMID 18070085 DOI: 10.1111/J.1558-5646.2007.00287.X |
0.484 |
|
| 2008 |
Fossøy F, Johnsen A, Lifjeld JT. Multiple genetic benefits of female promiscuity in a socially monogamous passerine. Evolution; International Journal of Organic Evolution. 62: 145-56. PMID 18053073 DOI: 10.1111/J.1558-5646.2007.00284.X |
0.576 |
|
| 2008 |
BJRNSTAD G, LIFJELD JT. Male parental care promotes early fledging in an open-nester, the Willow Warbler Phylloscopus trochilus Ibis. 138: 229-235. DOI: 10.1111/J.1474-919X.1996.Tb04333.X |
0.573 |
|
| 2008 |
SLAGSVOLD T, LIFJELD JT. Why are some birds polyterritorial? Ibis. 130: 65-68. DOI: 10.1111/J.1474-919X.1988.Tb00956.X |
0.738 |
|
| 2008 |
Laskemoen T, Fossøy F, Rudolfsen G, Lifjeld JT. Age-related variation in primary sexual characters in a passerine with male age-related fertilization success, the bluethroat Luscinia svecica Journal of Avian Biology. 39: 322-328. DOI: 10.1111/J.0908-8857.2008.04178.X |
0.605 |
|
| 2008 |
Delmore KE, Kleven O, Laskemoen T, Crowe SA, Lifjeld JT, Robertson RJ. Sex allocation and parental quality in tree swallows Behavioral Ecology. 19: 1243-1249. DOI: 10.1093/Beheco/Arn081 |
0.641 |
|
| 2008 |
Marthinsen G, Wennerberg L, Solheim R, Lifjeld JT. No phylogeographic structure in the circumpolar snowy owl (Bubo scandiacus) Conservation Genetics. 10: 923-933. DOI: 10.1007/S10592-008-9581-6 |
0.306 |
|
| 2008 |
Lislevand T, Marthinsen G, Lifjeld JT. Sex differences in body size and body condition in breeding Temminck’s Stints Calidris temminckii Journal of Ornithology. 150: 299-302. DOI: 10.1007/S10336-008-0323-9 |
0.535 |
|
| 2008 |
Kleven O, Bjerke B, Lifjeld JT. Genetic monogamy in the Common Crossbill (Loxia curvirostra) Journal of Ornithology. 149: 651-654. DOI: 10.1007/S10336-008-0291-0 |
0.427 |
|
| 2008 |
Johnsen A, Pärn H, Fossøy F, Kleven O, Laskemoen T, Lifjeld JT. Is female promiscuity constrained by the presence of her social mate? An experiment with bluethroats Luscinia svecica Behavioral Ecology and Sociobiology. 62: 1761-1767. DOI: 10.1007/S00265-008-0604-6 |
0.646 |
|
| 2007 |
WHITTINGHAM LA, DUNN PO, LIFJELD JT. EGG MASS INFLUENCES NESTLING QUALITY IN TREE SWALLOWS, BUT THERE IS NO DIFFERENTIAL ALLOCATION IN RELATION TO LAYING ORDER OR SEX The Condor. 109: 585. DOI: 10.1650/8247.1 |
0.469 |
|
| 2007 |
Kleven O, Øigarden T, Foyn BE, Moksnes A, Røskaft E, Rudolfsen G, Stokke BG, Lifjeld JT. Low frequency of extrapair paternity in the common redstart (Phoenicurus phoenicurus) Journal of Ornithology. 148: 373-378. DOI: 10.1007/S10336-007-0139-Z |
0.493 |
|
| 2007 |
Stapleton MK, Kleven O, Lifjeld JT, Robertson RJ. Female tree swallows (Tachycineta bicolor) increase offspring heterozygosity through extrapair mating Behavioral Ecology and Sociobiology. 61: 1725-1733. DOI: 10.1007/S00265-007-0404-4 |
0.626 |
|
| 2006 |
Johnsen A, Andersson S, Fernandez JG, Kempenaers B, Pavel V, Questiau S, Raess M, Rindal E, Lifjeld JT. Molecular and phenotypic divergence in the bluethroat (Luscinia svecica) subspecies complex. Molecular Ecology. 15: 4033-47. PMID 17054501 DOI: 10.1111/J.1365-294X.2006.03075.X |
0.35 |
|
| 2006 |
Kleven O, Jacobsen F, Izadnegahdar R, Robertson RJ, Lifjeld JT. No evidence of paternal genetic contribution to nestling cell-mediated immunity in the North American barn swallow Animal Behaviour. 71: 839-845. DOI: 10.1016/J.Anbehav.2005.06.019 |
0.525 |
|
| 2006 |
Fossøy F, Johnsen A, Lifjeld JT. Evidence of obligate female promiscuity in a socially monogamous passerine Behavioral Ecology and Sociobiology. 60: 255-259. DOI: 10.1007/S00265-006-0163-7 |
0.627 |
|
| 2005 |
Kleven O, Jacobsen F, Robertson RJ, Lifjeld JT. Extrapair mating between relatives in the barn swallow: a role for kin selection? Biology Letters. 1: 389-92. PMID 17148214 DOI: 10.1098/Rsbl.2005.0376 |
0.621 |
|
| 2005 |
Pärn H, Lifjeld JT, Amundsen T. Female throat ornamentation does not reflect cell-mediated immune response in bluethroats Luscinia s. svecica. Oecologia. 146: 496-504. PMID 16193297 DOI: 10.1007/S00442-005-0209-Y |
0.785 |
|
| 2005 |
Marthinsen G, Kleven O, Brenna E, Lifjeld JT. Part-Time Mate Guarding Affects Paternity in Male Reed Buntings (Emberiza schoeniclus) Ethology. 111: 397-409. DOI: 10.1111/J.1439-0310.2005.01079.X |
0.643 |
|
| 2005 |
Johannessen LE, Slagsvold T, Hansen BT, Lifjeld JT. Manipulation of male quality in wild tits: effects on paternity loss Behavioral Ecology. 16: 747-754. DOI: 10.1093/Beheco/Ari048 |
0.726 |
|
| 2005 |
Kleven O, Lifjeld JT. No evidence for increased offspring heterozygosity from extrapair mating in the reed bunting (Emberiza schoeniclus) Behavioral Ecology. 16: 561-565. DOI: 10.1093/Beheco/Ari027 |
0.649 |
|
| 2005 |
Lifjeld JT, Johnsen A, Petitguyot T. Egg-size variation in the bluethroat (Luscinia s. svecica): constraints and adaptation Journal of Ornithology. 146: 249-256. DOI: 10.1007/S10336-005-0086-5 |
0.473 |
|
| 2005 |
Kleven O, Marthinsen G, Lifjeld JT. Male extraterritorial forays, age and paternity in the socially monogamous reed bunting (Emberiza schoeniclus) Journal of Ornithology. 147: 468-473. DOI: 10.1007/S10336-005-0039-Z |
0.593 |
|
| 2005 |
Kleven O, Jacobsen F, Izadnegahdar R, Robertson RJ, Lifjeld JT. Male tail streamer length predicts fertilization success in the North American barn swallow (Hirundo rustica erythrogaster) Behavioral Ecology and Sociobiology. 59: 412-418. DOI: 10.1007/S00265-005-0065-0 |
0.65 |
|
| 2004 |
Harding AMA, Van Pelt TI, Lifjeld JT, Mehlum F. Sex differences in Little Auk Alle alle parental care: transition from biparental to paternal-only care Ibis. 146: 642-651. DOI: 10.1111/J.1474-919X.2004.00297.X |
0.485 |
|
| 2004 |
Kleven O, Lifjeld JT. Extrapair paternity and offspring immunocompetence in the reed bunting, Emberiza schoeniclus Animal Behaviour. 68: 283-289. DOI: 10.1016/J.Anbehav.2003.11.016 |
0.608 |
|
| 2003 |
Foerster K, Delhey K, Johnsen A, Lifjeld JT, Kempenaers B. Females increase offspring heterozygosity and fitness through extra-pair matings. Nature. 425: 714-7. PMID 14562103 DOI: 10.1038/Nature01969 |
0.644 |
|
| 2003 |
Johnsen A, Lifjeld JT. Ecological constraints on extra-pair paternity in the bluethroat. Oecologia. 136: 476-83. PMID 12783296 DOI: 10.1007/S00442-003-1286-4 |
0.522 |
|
| 2003 |
Johnsen A, Lifjeld JT, Krokene C. Age-Related Variation in Mate-Guarding Intensity in the Bluethroat (Luscinia s. svecica
) Ethology. 109: 147-158. DOI: 10.1046/J.1439-0310.2003.00861.X |
0.643 |
|
| 2002 |
Slagsvold T, Hansen BT, Johannessen LE, Lifjeld JT. Mate choice and imprinting in birds studied by cross-fostering in the wild. Proceedings. Biological Sciences / the Royal Society. 269: 1449-55. PMID 12137574 DOI: 10.1098/Rspb.2002.2045 |
0.688 |
|
| 2002 |
Lifjeld JT, Bjørnstad G, Steen OF, Nesje M. Reduced genetic variation in Norwegian Peregrine Falcons Falco peregrinus indicated by minisatellite DNA fingerprinting Ibis. 144: E19-E26. DOI: 10.1046/J.0019-1019.2001.00029.X |
0.34 |
|
| 2001 |
Birkhead TR, Hatchwell BJ, Lindner R, Blomqvist D, Pellatt EJ, Griffiths R, Lifjeld JT. Extra-Pair Paternity In The Common Murre The Condor. 103: 158-162. DOI: 10.1650/0010-5422(2001)103[0158:Eppitc]2.0.Co;2 |
0.366 |
|
| 2001 |
Örnborg J, Andersson S, Johnsen A, Lifjeld J, Amundsen T. MALE CHARACTERISTICS AND FERTILISATION SUCCESS IN BLUETHROATS Behaviour. 138: 1371-1390. DOI: 10.1163/156853901317367645 |
0.798 |
|
| 2001 |
Wallander J, Blomqvist D, Lifjeld JT. Genetic and Social Monogamy - Does It Occur Without Mate Guarding in the Ringed Plover? Ethology. 107: 561-572. DOI: 10.1046/J.1439-0310.2001.00695.X |
0.538 |
|
| 2000 |
Johnsen A, Andersen V, Sunding C, Lifjeld JT. Female bluethroats enhance offspring immunocompetence through extra-pair copulations. Nature. 406: 296-9. PMID 10917529 DOI: 10.1038/35018556 |
0.612 |
|
| 2000 |
Nesje M, Røed KH, Lifjeld JT, Lindberg P, Steen OF. Genetic relationships in the peregrine falcon (Falco peregrinus) analysed by microsatellite DNA markers. Molecular Ecology. 9: 53-60. PMID 10652075 DOI: 10.1046/J.1365-294X.2000.00834.X |
0.322 |
|
| 2000 |
Lorentsen S, Amundsen T, Anthonisen K, Lifjeld JT. Molecular Evidence for Extrapair Paternity and Female-Female Pairs in Antarctic Petrels The Auk. 117: 1042-1047. DOI: 10.1642/0004-8038(2000)117[1042:Mefepa]2.0.Co;2 |
0.785 |
|
| 2000 |
Lifjeld J, Krokene C. VARIATION IN THE FREQUENCY OF EXTRA-PAIR PATERNITY IN BIRDS: A COMPARISON OF AN ISLAND AND A MAINLAND POPULATION OF BLUE TITS Behaviour. 137: 1317-1330. DOI: 10.1163/156853900501944 |
0.419 |
|
| 1999 |
Rohde PA, Johnsen A, Lifjeld JT. Female Plumage Coloration in the Bluethroat: No Evidence for an Indicator of Maternal Quality The Condor. 101: 96-104. DOI: 10.2307/1370450 |
0.633 |
|
| 1999 |
Rohde PA, Johnsen A, Lifjeld JT. Parental Care and Sexual Selection in the Bluethroat, Luscinia s. svecica: A Field-experimental Test of the Differential Allocation Hypothesis Ethology. 105: 651-663. DOI: 10.1046/J.1439-0310.1999.00444.X |
0.537 |
|
| 1998 |
Lifjeld JT. High Paternity without Paternity-Assurance Behavior in the Purple Sandpiper, a Species with High Paternal Investment The Auk. 115: 602-612. DOI: 10.2307/4089409 |
0.614 |
|
| 1998 |
Johnsen A, Andersson S, Örnborg J, Lifjeld JT. Ultraviolet plumage ornamentation affects social mate choice and sperm competition in bluethroats (Aves: Luscinia s. svecica): a field experiment Proceedings of the Royal Society of London. Series B: Biological Sciences. 265: 1313-1318. DOI: 10.1098/Rspb.1998.0435 |
0.451 |
|
| 1998 |
Johnsen A, Lifjeld JT, Rohde PA, Primmer CR, Ellegren H. Sexual conflict over fertilizations: Female bluethroats escape male paternity guards Behavioral Ecology and Sociobiology. 43: 401-408. DOI: 10.1007/S002650050507 |
0.637 |
|
| 1997 |
Lifjeld JT. Brood Division Is Associated with Fledgling Dispersion in the Bluethroat (Luscinia s. svecica) The Auk. 114: 553-561. DOI: 10.2307/4089274 |
0.342 |
|
| 1997 |
Lifjeld JT, Slagsvold T, Dale S, Ellegren H. A Sexually Selected Paradox in the Pied Flycatcher: Attractive Males Are Cuckolded The Auk. 114: 112-115. DOI: 10.2307/4089072 |
0.818 |
|
| 1997 |
Bjornstad G, Lifjeld JT. High Frequency of Extra-Pair Paternity in a Dense and Synchronous Population of Willow Warblers Phylloscopus trochilus Journal of Avian Biology. 28: 319. DOI: 10.2307/3676945 |
0.545 |
|
| 1997 |
Lifjeld JT, Slagsvold T. Incomplete Female Knowledge of Male Quality May Explain Variation in Extra-Pair Paternity in Birds Behaviour. 134: 353-371. DOI: 10.1163/156853997X00584 |
0.763 |
|
| 1996 |
KROKENE C, ANTHONISEN K, LIFJELD JT, AMUNDSEN T. Paternity and paternity assurance behaviour in the bluethroat,Luscinias.svecica Animal Behaviour. 52: 405-417. DOI: 10.1006/Anbe.1996.0184 |
0.808 |
|
| 1995 |
Whittingham LA, Lifjeld JT. Extra-Pair Fertilizations Increase the Opportunity for Sexual Selection in the Monogamous House Martin Delichon urbica Journal of Avian Biology. 26: 283. DOI: 10.2307/3677042 |
0.649 |
|
| 1995 |
ELLEGREN H, LIFJELD JT, SLAGSVOLD T, PRIMMER CR. Handicapped males and extrapair paternity in pied flycatchers: a study using microsatellite markers Molecular Ecology. 4: 739-744. DOI: 10.1111/J.1365-294X.1995.Tb00274.X |
0.774 |
|
| 1995 |
Whittingham LA, Lifjeld JT. High paternal investment in unrelated young: extra-pair paternity and male parental care in house martins Behavioral Ecology and Sociobiology. 37: 103-108. DOI: 10.1007/Bf00164155 |
0.515 |
|
| 1994 |
Lifjeld JT. Do Female House Sparrows Copulate with Extra-Pair Mates to Enhance Their Fertility? Journal of Avian Biology. 25: 75. DOI: 10.2307/3677297 |
0.624 |
|
| 1994 |
Lifjeld JT, Dunn PO, Westneat DF. Sexual selection by sperm competition in birds: Male-male competition or female choice? Journal of Avian Biology. 25: 244-250. DOI: 10.2307/3677082 |
0.628 |
|
| 1994 |
Lifjeld JT, Marstein B. Paternity Assurance Behaviour in the House Martin Delichon urbica Journal of Avian Biology. 25: 231. DOI: 10.2307/3677080 |
0.34 |
|
| 1994 |
Slagsvold T, Lifjeld JT. Polygyny in Birds: The Role of Competition between Females for Male Parental Care The American Naturalist. 143: 59-94. DOI: 10.1086/285596 |
0.758 |
|
| 1994 |
Dunn PO, Lifjeld JT. Can extra-pair copulations be used to predict extra-pair paternity in birds? Animal Behaviour. 47: 983-985. DOI: 10.1006/Anbe.1994.1132 |
0.332 |
|
| 1993 |
Lifjeld JT, Dunn PO, Robertson RJ, Boag PT. Extra-pair paternity in monogamous tree swallows Animal Behaviour. 45: 213-229. DOI: 10.1006/Anbe.1993.1028 |
0.647 |
|
| 1992 |
Slagsvold T, Lifjeld JT. PLUMAGE COLOR IS A CONDITION-DEPENDENT SEXUAL TRAIT IN MALE PIED FLYCATCHERS. Evolution; International Journal of Organic Evolution. 46: 825-828. PMID 28568657 DOI: 10.1111/J.1558-5646.1992.Tb02087.X |
0.669 |
|
| 1992 |
Lifjeld JT, Robertson RJ. Female control of extra-pair fertilization in tree swallows Behavioral Ecology and Sociobiology. 31: 89-96. DOI: 10.1007/Bf00166341 |
0.65 |
|
| 1991 |
Lifjeld JT, Slagsvold T. Sexual conflict among polygynous pied flycatchers feeding young Behavioral Ecology. 2: 106-115. DOI: 10.1093/Beheco/2.2.106 |
0.563 |
|
| 1991 |
Lifjeld JT, Slagsvold T, Lampe HM. Low frequency of extra-pair paternity in pied flycatchers revealed by DNA fingerprinting Behavioral Ecology and Sociobiology. 29: 95-101. DOI: 10.1007/Bf00166483 |
0.69 |
|
| 1990 |
Slagsvold T, Lifjeld JT. Influence of Male and Female Quality on Clutch Size in Tits (Parus Spp.) Ecology. 71: 1258-1266. DOI: 10.2307/1938263 |
0.742 |
|
| 1990 |
Dale S, Amundsen T, Lifjeld JT, Slagsvold T. Mate sampling behaviour of female pied flycatchers: evidence for active mate choice Behavioral Ecology and Sociobiology. 27: 87-91. DOI: 10.1007/Bf00168450 |
0.842 |
|
| 1989 |
Slagsvold T, Lifjeld JT. Constraints on Hatching Asynchrony and Egg Size in Pied Flycatchers The Journal of Animal Ecology. 58: 837. DOI: 10.2307/5127 |
0.581 |
|
| 1989 |
Lifjeld JT, Slagsvold T. How Frequent Is Cuckoldry in Pied Flycatchers Ficedula Hypoleuca?: Problems with the Use of Heritability Estimates of Tarsus Length Oikos. 54: 205. DOI: 10.2307/3565268 |
0.71 |
|
| 1989 |
Slagsvold T, Lifjeld JT. Hatching Asynchrony in Birds: The Hypothesis of Sexual Conflict Over Parental Investment The American Naturalist. 134: 239-253. DOI: 10.1086/284978 |
0.702 |
|
| 1989 |
Lifjeld JT, Slagsvold T. Female nutritional state influences the allocation of incubation feeding by polygynous pied flycatcher males Animal Behaviour. 38: 903-904. DOI: 10.1016/S0003-3472(89)80124-1 |
0.613 |
|
| 1988 |
Lifjeld JT, Slagsvold T. Effects of Energy Costs on the Optimal Diet: An Experiment with Pied Flycatchers Ficedula hypoleuca Feeding Nestlings Ornis Scandinavica. 19: 111. DOI: 10.2307/3676459 |
0.528 |
|
| 1988 |
Slagsvold T, Lifjeld JT. Ultimate Adjustment of Clutch Size to Parental Feeding Capacity in a Passerine Bird Ecology. 69: 1918-1922. DOI: 10.2307/1941168 |
0.682 |
|
| 1988 |
Lifjeld JT. Prey choice and nestling hunger: an experiment with pied flycatchers, Ficedula hypoleuca Animal Behaviour. 36: 134-139. DOI: 10.1016/S0003-3472(88)80256-2 |
0.311 |
|
| 1988 |
Stenmark G, Slagsvold T, Lifjeld JT. Polygyny in the pied flycatcher, Ficedula hypoleuca: a test of the deception hypothesis Animal Behaviour. 36: 1646-1657. DOI: 10.1016/S0003-3472(88)80105-2 |
0.758 |
|
| 1988 |
Slagsvold T, Lifjeld JT, Stenmark G, Breiehagen T. On the cost of searching for a mate in female pied flycatchers Ficedula hypoleuca Animal Behaviour. 36: 433-442. DOI: 10.1016/S0003-3472(88)80013-7 |
0.753 |
|
| 1988 |
Slagsvold T, Lifjeld JT. Plumage colour and sexual selection in the pied flycatcher Ficedula hypoleuca Animal Behaviour. 36: 395-407. DOI: 10.1016/S0003-3472(88)80010-1 |
0.763 |
|
| 1988 |
Lifjeld JT, Slagsvold T. Female pied flycatchers Ficedula hypoleuca choose male characteristics in homogeneous habitats Behavioral Ecology and Sociobiology. 22: 27-36. DOI: 10.1007/Bf00395695 |
0.774 |
|
| 1988 |
Lifjeld JT, Slagsvold T. Mate fidelity of renesting pied flycatchers Ficedula hypoleuca in relation to characteristics of the pair mates Behavioral Ecology and Sociobiology. 22: 117-123. DOI: 10.1007/Bf00303546 |
0.766 |
|
| 1987 |
Lifjeld JT, Slagsvold T, Stenmark G. Allocation of incubation feeding in a polygynous mating system: a study on pied flycatchers Ficedula hypoleuca Animal Behaviour. 35: 1663-1669. DOI: 10.1016/S0003-3472(87)80059-3 |
0.754 |
|
| 1987 |
Partali V, Liaaen-Jensen S, Slagsvold T, Lifjeld J. Carotenoids in food chain studies—II. The food chain of Parus SPP. Monitored by carotenoid analysis Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 87: 885-888. DOI: 10.1016/0305-0491(87)90408-1 |
0.499 |
|
| 1986 |
Lifjeld JT, Slagsvold T. The function of courtship feeding during incubation in the pied flycatcher Ficedula hypoleuca Animal Behaviour. 34: 1441-1453. DOI: 10.1016/S0003-3472(86)80215-9 |
0.755 |
|
| 1986 |
Slagsvold T, Lifjeld JT. Mate retention and male polyterritoriality in the pied flycatcher Ficedula hypoleuca Behavioral Ecology and Sociobiology. 19: 25-30. DOI: 10.1007/Bf00303839 |
0.755 |
|
| 1984 |
Lifjeld JT. Prey Selection in Relation to Body Size and Bill Length of Five Species of Waders Feeding in the Same Habitat Ornis Scandinavica. 15: 217. DOI: 10.2307/3675930 |
0.305 |
|
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