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Tómas Grétar Gunnarsson is a research professor at the University of Iceland and the Director of the South Iceland Research Centre. He completed his first degree in 1997 and his Msc in 2000 both at the University of Iceland. In 2005 he received his PhD in Ecology from the University of East Anglia (UK). Has published 50 articles in journals, including as leading author in Nature, Proceedings B, Journal of Animal Ecology, Biological Conservation. And acted as supervisor in 10+ post-graduate thesis.
Identification

Personal identification

Full name
Tómas Grétar Gunnarsson

Citation names

  • Gunnarsson, Tómas

Author identifiers

Ciência ID
2B14-73A2-1E39
ORCID iD
0000-0001-7692-0637
Affiliation

Science

Category
Host institution 		Employer
2009 - Current Coordinating Researcher (Research) Háskóli Islands, Iceland
Outputs

Publications

Journal article
  1. Méndez, V.; Gill, J.A.; Þórisson, B.; Vignisson, S.R.; Gunnarsson, T.G.; Alves, J.A.. "Paternal effects in the initiation of migratory behaviour in birds". Scientific Reports 11 1 (2021): http://www.scopus.com/inward/record.url?eid=2-s2.0-85100356931&partnerID=MN8TOARS.
    10.1038/s41598-021-81274-9
  2. "Losing space for breeding waders". Wader Study 127 3 (2020): http://dx.doi.org/10.18194/ws.00212.
    10.18194/ws.00212
  3. Bing-Run Zhu; Chris J. Hassell; Yvonne I. Verkuil; Tómas G. Gunnarson; Jos C. E. W. Hooijmeijer; Zhengwang Zhang; Theunis Piersma. "Size, shape and sex differences in three subspecies of Black-tailed Godwits Limosa limosa". Bird Study (2020): https://doi.org/10.1080/00063657.2020.1733930.
    10.1080/00063657.2020.1733930
  4. Rebecca A. Laidlaw; Tómas G. Gunnarsson; Verónica Méndez; Camilo Carneiro; Böðvar Þórisson; Adam Wentworth; Jennifer A. Gill; José A. Alves. "Vegetation structure influences predation rates of early nests in subarctic breeding waders". Ibis (2020): https://doi.org/10.1111%2Fibi.12827.
    10.1111/ibi.12827
  5. Gunnarsson, Tómas. "Individual variation in migratory behavior in a subarctic partial migrant shorebird". Behavioral Ecology (2020): http://dx.doi.org/10.1093/beheco/araa010.
    10.1093/beheco/araa010
  6. Carneiro, C.; Gunnarsson, T.G.; Alves, J.A.. "Linking Weather and Phenology to Stopover Dynamics of a Long-Distance Migrant". Frontiers in Ecology and Evolution 8 (2020): http://www.scopus.com/inward/record.url?eid=2-s2.0-85086587114&partnerID=MN8TOARS.
    10.3389/fevo.2020.00145
  7. Gunnarsson, Tómas. "Icelandic meadow-breeding waders: status, threats and conservation challenges". Wader Study (2019): http://dx.doi.org/10.18194/ws.00140.
    10.18194/ws.00140
  8. José A. Alves; Tómas G. Gunnarsson; William J. Sutherland; Peter M. Potts; Jennifer A. Gill. "Linking warming effects on phenology, demography, and range expansion in a migratory bird population". Ecology and Evolution (2019): https://doi.org/10.1002/ece3.4746.
    10.1002/ece3.4746
  9. Camilo Carneiro; Tómas G. Gunnarsson; José A. Alves. "Faster migration in autumn than in spring: seasonal migration patterns and non-breeding distribution of Icelandic whimbrels Numenius phaeopus islandicus". Journal of Avian Biology 50 1 (2019): https://doi.org/10.1111/jav.01938.
    10.1111/jav.01938
  10. Gill, J.A.; Alves, J.A.; Gunnarsson, T.G.. "Mechanisms driving phenological and range change in migratory species". Philosophical Transactions of the Royal Society B: Biological Sciences 374 1781 (2019): http://www.scopus.com/inward/record.url?eid=2-s2.0-85070705673&partnerID=MN8TOARS.
    10.1098/rstb.2018.0047
  11. Morrison, C.A.; Alves, J.A.; Gunnarsson, T.G.; Þórisson, B.; Gill, J.A.. "Why do earlier-arriving migratory birds have better breeding success?". Ecology and Evolution 9 15 (2019): 8856-8864. http://www.scopus.com/inward/record.url?eid=2-s2.0-85070459755&partnerID=MN8TOARS.
    10.1002/ece3.5441
  12. Carneiro, C.; Gunnarsson, T.G.; Alves, J.A.. "Why are whimbrels not advancing their arrival dates into iceland? Exploring seasonal and sex-specific variation in consistency of individual timing during the annual cycle". Frontiers in Ecology and Evolution 7 JUL (2019): http://www.scopus.com/inward/record.url?eid=2-s2.0-85068558168&partnerID=MN8TOARS.
    10.3389/fevo.2019.00248
  13. Jóhannesdóttir, L.; Gill, J.A.; Alves, J.A.; Brink, S.H.; Arnalds, Ó.; Méndez, V.; Gunnarsson, T.G.. "Interacting effects of agriculture and landscape on breeding wader populations". Agriculture, Ecosystems and Environment 272 (2019): 246-253. http://www.scopus.com/inward/record.url?eid=2-s2.0-85057740318&partnerID=MN8TOARS.
    10.1016/j.agee.2018.11.024
  14. Jóhannesdóttir, L.; Alves, J.A.; Gill, J.A.; Gunnarsson, T.G.. "Use of agricultural land by breeding waders in low-intensity farming landscapes". Animal Conservation 21 4 (2018): 291-301. http://www.scopus.com/inward/record.url?eid=2-s2.0-85038636687&partnerID=MN8TOARS.
    10.1111/acv.12390
  15. Þórisson, B.; Méndez, V.; Alves, J.A.; Gill, J.A.; Skarphéðinsson, K.H.; Auhage, S.N.V.; Vignisson, S.R.; et al. "Population size of Oystercatchers Haematopus ostralegus wintering in Iceland". Bird Study 65 2 (2018): 274-278. http://www.scopus.com/inward/record.url?eid=2-s2.0-85048373078&partnerID=MN8TOARS.
    10.1080/00063657.2018.1478797
  16. Méndez, V.; Alves, J.A.; Gill, J.A.; Gunnarsson, T.G.. "Patterns and processes in shorebird survival rates: a global review". Ibis 160 4 (2018): 723-741. http://www.scopus.com/inward/record.url?eid=2-s2.0-85043337058&partnerID=MN8TOARS.
    10.1111/ibi.12586
  17. José A. Alves; Maria P. Dias; Verónica Méndez; Borgný Katrínardóttir; Tómas G. Gunnarsson. "Corrigendum: Very rapid long-distance sea crossing by a migratory bird". Scientific Reports 7 (2017): 44631-44631. https://doi.org/10.1038%2Fsrep44631.
    10.1038/srep44631
  18. Carneiro, C.; Gunnarsson, T.G.; Alves, J.A.. "Bloody cockles: A novel and important food item for whimbrels in the banc d’arguin". Wader Study 124 2 (2017): 161-162. http://www.scopus.com/inward/record.url?eid=2-s2.0-85029407621&partnerID=MN8TOARS.
    10.18194/ws.00072
  19. Lilja Jóhannesdóttir; José A. Alves; Jennifer A. Gill; Tómas G. Gunnarsson; Jóhannesdóttir, L.; Alves, J.A.; Gill, J.A.; Gunnarsson, T.G.. "Reconciling biodiversity conservation and agricultural expansion in the subarctic environment of Iceland". Ecology and Society 22 1 (2017): https://doi.org/10.5751%2Fes-08956-220116.
    10.5751/es-08956-220116
  20. Gunnarsson, T.G.; Jóhannesdóttir, L.; Alves, J.A.; Þórisson, B.; Gill, J.A.. "Effects of spring temperature and volcanic eruptions on wader productivity". Ibis 159 2 (2017): 467-471. http://www.scopus.com/inward/record.url?eid=2-s2.0-85010378000&partnerID=MN8TOARS.
    10.1111/ibi.12449
  21. Davidsdottir, B.; Gunnarsson, T.G.; Halldorsson, G.; Sigurdsson, B.D.; Brynja Davidsdottir; Tomas Gretar Gunnarsson; Gudmundur Halldorsson; Bjarni D. Sigurdsson. "Avian abundance and communities in areas revegetated with exotic versus native plant species". Icelandic Agricultural Sciences 29 1 (2016): 21-37. http://www.scopus.com/inward/record.url?eid=2-s2.0-85010775152&partnerID=MN8TOARS.
    10.16886/IAS.2016.03
  22. Gunnarsson, T.G.; Guðmundsson, G.A.. "Migration and non-breeding distribution of Icelandic whimbrels numenius phaeopus islandicus as revealed by ringing recoveries". Wader Study 123 1 (2016): 44-48. http://www.scopus.com/inward/record.url?eid=2-s2.0-84999256043&partnerID=MN8TOARS.
    10.18194/ws.00031
  23. Alves, J.A.; Dias, M.P.; Méndez, V.; Katrínardóttir, B.; Gunnarsson, T.G.. "Very rapid long-distance sea crossing by a migratory bird". Scientific Reports 6 (2016): http://www.scopus.com/inward/record.url?eid=2-s2.0-84999277841&partnerID=MN8TOARS.
    10.1038/srep38154
  24. Gunnarsson, T.G.; Arnalds, O.; Appleton, G.; Méndez, V.; Gill, J.A.. "Ecosystem recharge by volcanic dust drives broad-scale variation in bird abundance". Ecology and Evolution 5 12 (2015): 2386-2396. http://www.scopus.com/inward/record.url?eid=2-s2.0-84931566846&partnerID=MN8TOARS.
    10.1002/ece3.1523
  25. Gudjónsson, H.; Jónsson, J.E.; Stefánsson, H.W.; Snæpórsson, A.O.; Gunnarsson, T.G.. "Annual and large-scale variation in breeding output of Greylag geese Anser anser in Iceland". Bird Study 62 2 (2015): 243-252. http://www.scopus.com/inward/record.url?eid=2-s2.0-84929254396&partnerID=MN8TOARS.
    10.1080/00063657.2015.1034655
  26. Katrínardóttir, B.; Alves, J.A.; Sigurjónsdóttir, H.; Hersteinsson, P.; Gunnarsson, T.G.. "The effects of habitat type and volcanic eruptions on the breeding demography of icelandic whimbrels numenius phaeopus". PLoS ONE 10 7 (2015): http://www.scopus.com/inward/record.url?eid=2-s2.0-84941347733&partnerID=MN8TOARS.
    10.1371/journal.pone.0131395
  27. Catry, T.; Alves, J.A.; Gill, J.A.; Gunnarsson, T.G.; Granadeiro, J.P.. "Individual specialization in a shorebird population with narrow foraging niche". Acta Oecologica 56 (2014): 56-65. http://www.scopus.com/inward/record.url?eid=2-s2.0-84897858743&partnerID=MN8TOARS.
    10.1016/j.actao.2014.03.001
  28. Gill, J.A.; Alves, J.A.; Sutherland, W.J.; Appleton, G.F.; Potts, P.M.; Gunnarsson, T.G.. "Why is timing of bird migration advancing when individuals are not?". Proceedings. Biological sciences / The Royal Society 281 1774 (2014): http://www.scopus.com/inward/record.url?eid=2-s2.0-84906302068&partnerID=MN8TOARS.
    10.1098/rspb.2013.2161
  29. Jóhannesdóttir, L.; Arnalds, O.; Brink, S.; Gunnarsson, T.G.. "Identifying important bird habitats in a sub-arctic area undergoing rapid land-use change". Bird Study 61 4 (2014): 544-552. http://www.scopus.com/inward/record.url?eid=2-s2.0-84908667212&partnerID=MN8TOARS.
    10.1080/00063657.2014.962481
  30. Jónsson, J.E.; Gardarsson, A.; Gill, J.A.; Pétursdóttir, U.K.; Petersen, A.; Gunnarsson, T.G.. "Relationships between Long-Term Demography and Weather in a Sub-Arctic Population of Common Eider". PLoS ONE 8 6 (2013): http://www.scopus.com/inward/record.url?eid=2-s2.0-84879264521&partnerID=MN8TOARS.
    10.1371/journal.pone.0067093
  31. Vigfusdottir, F.; Gunnarsson, T.G.; Gill, J.A.. "Annual and between-colony variation in productivity of Arctic Terns in West Iceland". Bird Study 60 3 (2013): 289-297. http://www.scopus.com/inward/record.url?eid=2-s2.0-84882455858&partnerID=MN8TOARS.
    10.1080/00063657.2013.811214
  32. Alves, J.A.; Gunnarsson, T.G.; Potts, P.M.; Sutherland, W.J.; Gill, J.A.. "Sex-biases in distribution and resource use at different spatial scales in a migratory shorebird". Ecology and Evolution 3 4 (2013): 1079-1090. http://www.scopus.com/inward/record.url?eid=2-s2.0-84880019470&partnerID=MN8TOARS.
    10.1002/ece3.503
  33. Katrínardóttir, B.; Pálsson, S.; Gunnarsson, T.G.; Sigurjónsdóttir, H.. "Sexing Icelandic Whimbrels Numenius phaeopus islandicus with DNA and biometrics". Ringing and Migration 28 1 (2013): 43-46. http://www.scopus.com/inward/record.url?eid=2-s2.0-84880013564&partnerID=MN8TOARS.
    10.1080/03078698.2013.811160
  34. Alves, J.A.; Gunnarsson, T.G.; Hayhow, D.B.; Appleton, G.F.; Potts, P.M.; Sutherland, W.J.; Gill, J.A.. "Costs, benefits, and fitness consequences of different migratory strategies". Ecology 94 1 (2013): 11-17. http://www.scopus.com/inward/record.url?eid=2-s2.0-84876149718&partnerID=MN8TOARS.
    10.1890/12-0737.1
  35. Lopes, R.J.; Alves, J.A.; Gill, J.A.; Gunnarsson, T.G.; Hooijmeijer, J.C.E.W.; Lourenço, P.M.; Masero, J.A.; et al. "Do different subspecies of Black-tailed Godwit Limosa limosa overlap in Iberian wintering and staging areas? Validation with genetic markers,Überschneiden sich verschiedene Unterarten der Uferschnepfe Limosa limosa in den iberischen Winterund Rastgebieten? Eine Bestätigung anhand genetischer Marker". Journal of Ornithology 154 1 (2013): 35-40. http://www.scopus.com/inward/record.url?eid=2-s2.0-84871918911&partnerID=MN8TOARS.
    10.1007/s10336-012-0865-8
  36. William J. Sutherland; Jose A. Alves; Tatsuya Amano; Charlotte H. Chang; Nicholas C. Davidson; C. Max Finlayson; Jennifer A. Gill; et al. "A horizon scanning assessment of current and potential future threats to migratory shorebirds". Ibis 154 4 (2012): 663-679. https://doi.org/10.1111%2Fj.1474-919x.2012.01261.x.
    10.1111/j.1474-919x.2012.01261.x
  37. Catry, T.; Alves, J.A.; Gill, J.A.; Gunnarsson, T.G.; Granadeiro, J.P.. "Sex promotes spatial and dietary segregation in a migratory shorebird during the non-breeding season". PLoS ONE 7 3 (2012): http://www.scopus.com/inward/record.url?eid=2-s2.0-84859150631&partnerID=MN8TOARS.
    10.1371/journal.pone.0033811
  38. Gunnarsson, T.G.; Sutherland, W.J.; Alves, J.A.; Potts, P.M.; Gill, J.A.. "Rapid changes in phenotype distribution during range expansion in a migratory bird". Proceedings of the Royal Society B: Biological Sciences 279 1727 (2012): 411-416. http://www.scopus.com/inward/record.url?eid=2-s2.0-82955229515&partnerID=MN8TOARS.
    10.1098/rspb.2011.0939
  39. Alves, J.A.; Gunnarsson, T.G.; Potts, P.M.; Gélinaud, G.; Sutherland, W.J.; Gill, J.A.. "Overtaking on migration: Does longer distance migration always incur a penalty?". Oikos 121 3 (2012): 464-470. http://www.scopus.com/inward/record.url?eid=2-s2.0-84857657769&partnerID=MN8TOARS.
    10.1111/j.1600-0706.2011.19678.x
  40. Gillings, S.; Avontins, A.; Crowe, O.; Dalakchieva, S.; Devos, K.; Elts, J.; Green, M.; et al. "Results of a coordinated count of Eurasian Golden Plovers Pluvialis apricaria in Europe during october 2008". Wader Study Group Bulletin 119 2 (2012): 125-128. http://www.scopus.com/inward/record.url?eid=2-s2.0-84867714471&partnerID=MN8TOARS.
  41. Thorisson, B.; Eyjólfsson, V.; Gardarsson, A.; Albertsdóttir, H.B.; Gunnarsson, T.G.. "The non-breeding distribution of icelandic Common Ringed Plovers". Wader Study Group Bulletin 119 2 (2012): 97-101. http://www.scopus.com/inward/record.url?eid=2-s2.0-84867738945&partnerID=MN8TOARS.
  42. Gunnarsson, T.G.; Tómasson, G.. "Flexibility in spring arrival of migratory birds at northern latitudes under rapid temperature changes". Bird Study 58 1 (2011): 1-12. http://www.scopus.com/inward/record.url?eid=2-s2.0-79951899332&partnerID=MN8TOARS.
    10.1080/00063657.2010.526999
  43. Ratikainen, I.I.; Gill, J.A.; Gunnarsson, T.G.; Sutherland, W.J.; Kokko, H.. "When density dependence is not instantaneous: Theoretical developments and management implications". Ecology Letters 11 2 (2008): 184-198. http://www.scopus.com/inward/record.url?eid=2-s2.0-37849031454&partnerID=MN8TOARS.
    10.1111/j.1461-0248.2007.01122.x
  44. Kokko, H.; Gunnarsson, T.G.; Morrell, L.J.; Gill, J.A.. "Why do female migratory birds arrive later than males?". Journal of Animal Ecology 75 6 (2006): 1293-1303. http://www.scopus.com/inward/record.url?eid=2-s2.0-33749650343&partnerID=MN8TOARS.
    10.1111/j.1365-2656.2006.01151.x
  45. Gunnarsson, T.G.; Gill, J.A.; Atkinson, P.W.; Gélinaud, G.; Potts, P.M.; Croger, R.E.; Gudmundsson, G.A.; Appleton, G.F.; Sutherland, W.J.. "Population-scale drivers of individual arrival times in migratory birds". Journal of Animal Ecology 75 5 (2006): 1119-1127. http://www.scopus.com/inward/record.url?eid=2-s2.0-33746834976&partnerID=MN8TOARS.
    10.1111/j.1365-2656.2006.01131.x
  46. Gunnarsson, T.G.; Gill, J.A.; Goodacre, S.L.; Gélinaud, G.; Atkinson, P.W.; Hewitt, G.M.; Potts, P.M.; Sutherland, W.J.. "Sexing of Black-tailed Godwits Limosa limosa islandica: A comparison of behavioural, molecular, biometric and field-based techniques". Bird Study 53 3 (2006): 193-198. http://www.scopus.com/inward/record.url?eid=2-s2.0-33750907881&partnerID=MN8TOARS.
    10.1080/00063650609461433
  47. Gunnarsson, T.G.; Gill, J.A.; Appleton, G.F.; Gíslason, H.; Gardarsson, A.; Watkinson, A.R.; Sutherland, W.J.. "Large-scale habitat associations of birds in lowland Iceland: Implications for conservation". Biological Conservation 128 2 (2006): 265-275. http://www.scopus.com/inward/record.url?eid=2-s2.0-29244431985&partnerID=MN8TOARS.
    10.1016/j.biocon.2005.09.034
  48. Gunnarsson, T.G.; Gill, J.A.; Newton, J.; Potts, P.M.; Sutherland, W.J.. "Seasonal matching of habitat quality and fitness in a migratory bird". Proceedings of the Royal Society B: Biological Sciences 272 1578 (2005): 2319-2323. http://www.scopus.com/inward/record.url?eid=2-s2.0-27244445813&partnerID=MN8TOARS.
    10.1098/rspb.2005.3214
  49. Gunnarsson, T.G.; Gill, J.A.; Potts, P.M.; Atkinson, P.W.; Croger, R.E.; Gélinaud, G.; Gardarsson, A.; Sutherland, W.J.. "Estimating population size in Black-tailed Godwits Limosa limosa islandica by colour-marking". Bird Study 52 2 (2005): 153-158. http://www.scopus.com/inward/record.url?eid=2-s2.0-21244477513&partnerID=MN8TOARS.
    10.1080/00063650509461385
  50. Gunnarsson, T.G.; Gill, J.A.; Petersen, A.; Appleton, G.F.; Sutherland, W.J.. "A double buffer effect in a migratory shorebird population". Journal of Animal Ecology 74 5 (2005): 965-971. http://www.scopus.com/inward/record.url?eid=2-s2.0-29244467337&partnerID=MN8TOARS.
    10.1111/j.1365-2656.2005.00994.x
  51. Gunnarsson, T.G.; Gill, J.A.; Sigurbjörnsson, T.; Sutherland, W.J.. "Erratum: Arrival synchrony in migratory birds (Nature (2004) 431 (646))". Nature 432 7015 (2004): http://www.scopus.com/inward/record.url?eid=2-s2.0-19744381776&partnerID=MN8TOARS.
    10.1038/432291a
  52. Gunnarsson, T.G.; Gill, J.A.; Sigurbjörnsson, T.; Sutherland, W.J.. "Pair bonds: Arrival synchrony in migratory birds". Nature 431 7009 (2004): http://www.scopus.com/inward/record.url?eid=2-s2.0-19644370594&partnerID=MN8TOARS.
    10.1038/431646a
  53. Gill, J.A.; Norris, K.; Potts, P.M.; Gunnarsson, T.G.; Atkinson, P.W.; Sutherland, W.J.. "The buffer effect and large-scale population regulation in migratory birds". Nature 412 6845 (2001): 436-438. http://www.scopus.com/inward/record.url?eid=2-s2.0-0035954722&partnerID=MN8TOARS.
    10.1038/35086568