Jón S. Ólafsson

2019

Iris Hansen , Jón S. Ólafsson . Kísilþörungar og hryggleysingjar í Lagarfljóti 2011‒2012. HV 2019-27. 2019.
Leó Alexander Guðmundsson , Hlynur Bárðarson , Jón S. Ólafsson , Eydís Salome Eiríksdóttir . Útbreiðsla laxfiska og umhverfisþættir vatnsfalla á Austfjörðum. Distribution of salmonids and environmental factors in rivers at the East fjords of Iceland. HV 2019-40. 2019.
Jónína Herdís Ólafsdóttir , Jóhann Garðar Þorbjörnsson , Bjarni Kristófer Kristjánsson, Jón S. Ólafsson . Invertebrate biodiversity in cold groundwater fissures in Iceland. Ecology and Evolution. 2019. https://doi.org/10.1002/ece3.5213
Jón S. Ólafsson , Ingi Rúnar Jónsson , Sigurður Már Einarsson , Eydís Salome Eiríksdóttir . Lífríki Hófsár og vatna á vestanverðu Glámuhálendi. Rannsókn unnin vegna fyrirhugaðrar stækkunar Mjólkárvirkjunar í Ísafjarðarbæ. HV 2019-24. 2019.
Sigurður Már Einarsson , Jón S. Ólafsson , Jóhannes Guðbrandsson . Rannsóknir á í lífríki Pennu á Barðaströnd. HV 2019-12. 2019.

2018

Sigurður Már Einarsson , Jón S. Ólafsson , Jóhannes Guðbrandsson . Rannsóknir á lífríki Djúpavatns og nálægra tjarna á Dynjandisheiði. 2018.
Leó Alexander Guðmundsson , Hlynur Bárðarson , Jón S. Ólafsson , Ingi Rúnar Jónsson , Eydís Njarðardóttir , Ragnhildur Þ. Magnúsdóttir , Jóhannes Guðbrandsson , Sigurður Már Einarsson . Skyldleiki laxastofna í ám á Austfjörðum við aðra laxastofna á Íslandi. KVER 2018-4. 2018.
Agnes-Katharina Kreiling, Jón S. Ólafsson , Snæbjörn Pálsson, Bjarni Kristófer Kristjánsson. Chironomidae fauna of springs in Iceland: Assessing the ecological relevance behind Tuxen’s spring classification. Journal of Limnology. 2018;77 (1). https://doi.org/10.4081/jlimnol.2018.1754
C. Elisa Schaum, Student Research Team, Richard Ffrench-Constant, Chris Lowe, Jón S. Ólafsson , Daniel Padfield, Gabriel Yvon-Durocher. Temperature‐driven selection on metabolic traits increases the strength of an algal–grazer interaction in naturally warmed streams. Global Change Biolgoy. 2018;24 (4):1793-1803. https://doi.org/10.1111/gcb.14033
James M. Hood, Jonathan P. Benstead, Wyatt F. Cross, Alexander D. Huryn, Philip W. Johnson, Gísli Már Gíslason, James R. Junker, Daniel Nelson, Jón S. Ólafsson , Chau Tran. Increased resource use efficiency amplifies positive response of aquatic primary production to experimental warming. Global Change Biolgoy. 2018;24 (3):106-1084. https://doi.org/10.1111/gcb.13912
Daniel P. Govoni, Bjarni Kristófer Kristjánsson, Jón S. Ólafsson . Spring type influences invertebrate communities at cold spring sources. Hydrobiologia. 2018;808 (1):315-325. https://doi.org/10.1007/s10750-017-3434-6
Lee E. Brown, Kieran Khamis, Martin Wilkes, Philip Blaen, John E. Brittain, Jonathan L. Carrivick, Sarah Fell, Nikolai Friberg, Leopold Füreder, Gísli Már Gíslason, Sarah Hainie, David M. Hannah, William H. M. James, Valeria Lencioni, Jón S. Ólafsson , Christopher T. Robinson, Svein J. Saltveit, Craig Thompson, Alexander M. Milner. Functional diversity and community assembly of river invertebrates show globally consistent responses to decreasing glacier cover. Nature Ecology and Evolution. 2018;2:325-333. https://doi.org/10.1038/s41559-017-0426-x

2017

Jennifer Scrine, Malte Jochum, Jón S. Ólafsson , Eoin J. O´Gorman. Interactive effects of temperature and habitat complexity on freshwater communities. Ecology and Evolution. 2017;7 (22:9333-9346. https://doi.org/10.1002/ece3.3412
Daniel Padfield, Chris Lowe, Angus Buckling, Richard Ffrench-Constant, Student Research Team, Simon Jennings, Felicity Shelley, Jón S. Ólafsson , Gabriel Yvon-Durocher. Metabolic compensation constrains the temperature dependence of gross primary production. Ecology Letters. 2017;20 (10):1250-1260. https://doi.org/10.1111/ele.12820
Alexander M. Milner, Kieran Khamis, Tom J. Battin, John E. Brittain, Nicholas E. Barrand, Leopold Füreder, Sophie Cauvy-Fraunié, Gísli Már Gíslason, Dean Jacobsen, David M. Hannah, Andrew J. Hodson, Eran Hood, Valeria Lencioni, Jón S. Ólafsson , Christopher T. Robinson, Martyn Tranter, Lee E. Brown. Glacier shrinkage driving global changes in downstream systems. PNAS. 2017;114 (37):9770-9778. https://doi.org/10.1073/pnas.1619807114
Daniel Nelson, Jonathan P. Benstead, Alexander D. Huryn, Wyatt F. Cross, James M. Hood, Philip W. Johnson, James R. Junker, Gísli Már Gíslason, Jón S. Ólafsson . Experimental whole‐stream warming alters community size structure. Global Change Biolgoy. 2017;23 (7):2618-2628. https://https;//doi.org/10.1111/gcb.13574
Daniel Nelson, Jonathan P. Benstead, Alexander D. Huryn, Wyatt F. Cross, James M. Hood, Philip W. Johnson, James R. Junker, Gísli Már Gíslason, Jón S. Ólafsson . Shifts in community size structure drive temperature invariance of secondary production in a stream‐warming experiment. Ecology. 2017;98 (7):1797-1806. https://doi.org/10.1002/ecy.1857
Jónína Herdís Ólafsdóttir , Jón S. Ólafsson , Sigurður Már Einarsson . Fæða fiska í vatnsföllum á Vestfjörðum. HV 2017-010. 2017.
Nadja Ognjanova-Rumenova, Ingi Rúnar Jónsson , Vaiva Cypaite, Jón S. Ólafsson , David C. Finger, Teodora A. Trichkova. Valve Ultrastructure of Didymosphenia geminate (Lyngbye) M. Schmidt: An invasive Diatom Species in the Running Waters of Iceland. Acta Zoologica Bulgarica Supplementum. 2017;9:21-28.

2016

Benoit O. L. Demars, Gísli Már Gíslason, Jón S. Ólafsson , J. Russell Manson, Nikolai Friberg, James M. Hood, Joshua J. D. Thompson, Thomas E. Freitag. Impact of warming on CO2 emissions from streams countered by aquatic photosynthesis. Nature Geoscience. 2016;9:758-761. https://doi.org/10.1038/NGEO2807
H. Hátún, K. Lohmann, D. Matei, J. H. Jungclaus, S. Pacariz, M. Bersch, Ástþór Gíslason , Jón S. Ólafsson , P. C. Reid. An inflated subpolar gyre blows life toward the northeastern Atlantic. Progress in Oceanography. 2016;147:49-66. https://doi.org/10.1016/j.pocean.2016.07.009
Eoin J. O´Gorman, Ólafur P. Ólafsson, Benoit O. L. Demars, Nikolai Friberg, Guðni Guðbergsson , Elísabet Ragna Hannesdóttir, Michelle C. Jackson, Liselotte S. Johansson, Orla V. McLaughlin, Jón S. Ólafsson , Guy Woodward, Gísli Már Gíslason. Temperature effects on fish production across a natural thermal gradient. Global Change Biolgoy. 2016;22 (9):3206-3220. https://doi.org/10.1111/gcb.13233
Ásta Kristín Guðmundsdóttir , Benóný Jónsson , Eydís Salome Eiríksdóttir , Eydís Njarðardóttir , Friðþjófur Árnason , Guðni Guðbergsson , Hlynur Bárðarson , Ingi Rúnar Jónsson , Iris Hansen , Jóhannes Guðbrandsson , Jón S. Ólafsson , Jónína Herdís Ólafsdóttir , Leó Alexander Guðmundsson , Magnús Jóhannsson , Ragnhildur Þ. Magnúsdóttir , Sandra Magdalena Granquist , Sigurður Guðjónsson , Sigurður Már Einarsson , Sigurður Óskar Helgason , Þórólfur Antonsson. Veiðmálastofnun. Starfsemi og framtíðarsýn. 2016.
Sigurður Már Einarsson , Jón S. Ólafsson . Umhverfisþættir og útbreiðsla laxfiska á vestanverðum Vestfjörðum. 2016.

2015

Hrönn Egilsdóttir , Jón S. Ólafsson , Sophie Martin. Photosynthesis and calcification in the articulated coralline alga Ellisolandia elongata (Corallinales, Rhodophyta) from intertidal rock pools. European Journal of Phycology. 2015;51 (1):59-70. https://doi.org/10.1080/09670262.2015.1101165
Magnús Jóhannsson , Ragnhildur Þ. Magnúsdóttir , Benóný Jónsson , Jón S. Ólafsson , Jónína Herdís Ólafsdóttir . Tungufljót í Biskupstungum. Lífríkisrannóknir vegna fyrirhugaðrar vikjunar. V;ST/15028. 2015.
Jón S. Ólafsson . Rykmý í sjó. Náttúrufræðingurinn. 2015;84 (3-4):164-170.
Magnús Jóhannsson , Benóný Jónsson , Ragnhildur Þ. Magnúsdóttir , Jón S. Ólafsson . Stóra-Laxá í Hreppum. Vatnalíf, veiðinytjar og virkjun. 2015.
Benóný Jónsson , Ragnhildur Þ. Magnúsdóttir , Sigurður Óskar Helgason , Jón S. Ólafsson . Vatnalíf Svarár í Suður Þingeyjarsýslu og mat á áhrifum vatnsaflsvirkjunar. 2015.

2014

Elísabet Ragna Hannesdóttir, Jón S. Ólafsson . Mat á vistfræðilegu ástandi vatnshlota. Botnhryggleysingjar í straumvötnum. 2014.
Elísabet Ragna Hannesdóttir, Jón Ágúst Jónsson, Jón S. Ólafsson , Rán Þórarinsdóttir. Rannsóknir á smádýrum og þörungum í Jökulsá á Dal 2014. Stöðuskýrsla. 2014.

2013

Rakel Guðmundsdóttir , Snæbjörn Pálsson, Elísabet Ragna Hannesdóttir, Jón S. Ólafsson , Gísli Már Gíslason, Brian Moss. Diatoms as indicators: The influences of experimental nitrogen enrichment on diatom assemblages in sub-Arctic streams. Ecological Indicators. 2013;32:74-81. https://doi.org/10.1016/j.ecolind.2013.03.015
Iris Hansen , Eydís Njarðardóttir , Finnur Ingimarsson, Haraldur R. Ingvason, Jón S. Ólafsson . Kísilþörungar og smádýr í Lagarfljóti 2006-2007. 2013.
Elísabet Ragna Hannesdóttir, Gísli Már Gíslason, Jón S. Ólafsson , Ólafur P. Ólafsson, Eoin J. O´Gorman. Increased Stream Productivity with Warming Supports Higher Trophic Levels. Advances in Ecological Research. 2013;48:285-342. https://doi.org/10.1016/B978-0-12-417199-2.00005-7

2012

J. M. Culp, W. Goedkoop, J. Lento, K. S. Christoffersen, S. Frenzel, Guðni Guðbergsson , P. Linjaniemi, S. Sandöy, M. Svoboda, J. Brittain, J. Hammar, D. Jacobsen, B. Jones, C. Julliet, M. Kahlert, K. Kidd, E. Lukier, Jón S. Ólafsson , M. Power, M. Rautio, A. Ritchley, R. Strigelm, M. Svenning, J. Sweetman, M. Whitman. Arctic Freshwater Biodiversity Monitoring Plan. Freshwatre Expert monitoring Group, Circumpolar Biodiversity Monitoring Program. CAFF Monitoring Series Peport . 2012;7:151. https://doi.org/10.13140/2.1.4298.5928
Elísabet Ragna Hannesdóttir, Gísli Már Gíslason, Jón S. Ólafsson . Life cycles of Eukiefferiella claripennis (Lundbeck 1898) and Eukiefferiella minor (Edwards 1929) (Diptera: Chironomidae) in spring-fed streams of different temperatures with reference to climate change. Proceedings of the 18th International Symposium on Chironomidae. Fauna norvegica. 2012;31:35-46. https://doi.org/10.5324/fn.v31i0.1367
Rakel Guðmundsdóttir , Snæbjörn Pálsson, Gísli Már Gíslason, Jón S. Ólafsson , Brian Moss. Variation in diatom and bryophyte communities along a temperature gradient in sub–Arctic streams: model surrogates for trends in larger ecosystems? . Inland Waters. 2012;2 (4):163-176. https://doi.org/10.5268/IW-2.4.479
Benoit O. L. Demars, J. Russell Manson, Jón S. Ólafsson , Gísli Már Gíslason, Nikolai Friberg. Stream hydraulics and temperature determine the metabolism of geothermal Icelandic streams. Knowledge and Management of Aquatic Ecosystems. 2012;402:5-16. https://doi.org/10.1051/kmae/2011046
Eoin J. O´Gorman, Doris E. Pichler, Georgina Adams, Jonathan P. Benstead, Haley Cohen, Nicola Craig, Wyatt F. Cross, Benoit O. L. Demars, Nikolai Friberg, Gísli Már Gíslason, Rakel Guðmundsdóttir , Adrianna Hawczak, James M. Hood, Lawrence N. Hudson, Liselotte S. Johansson, Magnus P. Johansson, James R. Junker, Anssi Laurila, J. Russell Manson, Epfraxia Mavromati, Daniel Nelson, Jón S. Ólafsson , et al. Impacts of warming on the structure and functioning of aquatic communities: individual– to ecosystem–level responses.. Advances in Ecological Research. 2012;47:81-176. https://doi.org/10.1016/B978-0-12-398315-2.00002-8

2011

Rakel Guðmundsdóttir , Gísli Már Gíslason, Snæbjörn Pálsson, Jón S. Ólafsson , Anders Schomacker, Nikolai Friberg, Guy Woodward, Elísabet Ragna Hannesdóttir, Brian Moss. Effects of temperature regime on primary producers in Icelandic geothermal streams. Aquatic Botany. 2011;95 (4):278-286. https://doi.org/10.1016/j.aquabot.2011.08.003
Rakel Guðmundsdóttir , Jón S. Ólafsson , Snæbjörn Pálsson, Gísli Már Gíslason, Brian Moss. How will increased temperature and nutrient enrichment affect primary producers in sub‐Arctic streams?. Freshwater Biology. 2011;56 (10):2045-2058. https://doi.org/10.1111/j.1365-2427.2011.02636.x
Benoit O. L. Demars, J. Russell Manson, Jón S. Ólafsson , Gísli Már Gíslason, Rakel Guðmundsdóttir , Guy Woodward, Julia Reiss, Doris E. Pichler, Jes J. Rasmussen , Nikolai Friberg. Temperature and the metabolic balance of streams. Freshwater Biology. 2011;56 (6):1106-1121. https://doi.org/10.1111/j.1365-2427.2010.02554.x
Sigurður S. Snorrason, Hilmar J. Malmquist, Hrefna B. Ingólfsdóttir, Þórey Ingimundardóttir, Jón S. Ólafsson . Effects of geothermal effluents on macrobenthic communities in a pristine sub-arctic lake. Inland Waters. 2011;1 (3):146-157. https://doi.org/10.5268/IW-1.3.363
Magnús Jóhannsson , Guðni Guðbergsson , Jón S. Ólafsson . Lífríki Sogs. Samantekt og greining á gögnum frá árunum 1985-2008. 2011.

2010

Guy Woodward, John B. Dybkjær, Jón S. Ólafsson , Gísli Már Gíslason, Elísabet Ragna Hannesdóttir, Nikolai Friberg. Sentinel systems on the razor's edge: effects of warming on Arctic geothermal stream ecosystems. Global Change Biolgoy. 2010;16 (7):1979-1991. https://doi.org/10.1111/j.1365-2486.2009.02052.x

2009

Brian Moss, Daniel Hering, Andy J. Green, Ahmed Aidoud, Eloy Becares, Meryem Beklioglu, Helen Bennion, Dani Boix, Sandra Brucet, Laurence Carvalho, Bernard Clement, Tom Davidson, Steven Declerck, Michael Dobson, Ellen van Donk, Bernard Dudley, Heidrun Feuchtmayr, Nikolai Friberg, Gael Grenouillet, Helmut Hillebrand, Anders Hobaek, Kenneth Irvine, Erik Jeppesen, Richard Johnson, Iwan Jones, Martin Kernan, Torben L. Lauridsen, Marina Manca, Mariana Meerhoff, Jón S. Ólafsson , et al. Climate Change and the Future of Freshwater Biodiversity in Europe: A Primer for Policy-Makers. Freshwater Reviews. 2009;2:103-130. https://doi.org/10.1608/FRJ-2.2.1
Nikolai Friberg, John B. Dybkjær, Jón S. Ólafsson , Gísli Már Gíslason, Sören E. Larsen, Torben L. Lauridsen. Relationships between structure and function in streams contrasting in temperature. Freshwater Biology. 2009;54 (10):2051-2068. https://doi.org/10.1111/j.1365-2427.2009.02234.x

2005

Cristina Fuentes, Andy J. Green, Jane Orr, Jón S. Ólafsson . Seasonal variation in species composition and larval size of the benthic chironomid communities in brackish wetlands in Southern Alicante, Spain. Wetlands. 2005;25 (2):289-296. https://doi.org/10.1672/5

2004

Sigurður Reynir Gíslason, Eydís Salome Eiríksdóttir , Jón S. Ólafsson . Chemical composition of interstitial water and diffusive fluxes within the diatomaceous sediment in Lake Myvatn, Iceland. Aquatic Ecology. 2004;38 (2):163-175. https://doi.org/10.1023/B:AECO.0000032063.15765.e4
Árni Einarsson, Gerður Stefánsdóttir, Helgi Jóhannesson, Jón S. Ólafsson , Gísli Már Gíslason, Isamu Wakana, Guðni Guðbergsson , Arnþór Garðarsson. The ecology of Lake Myvatn and the River Laxá: Variation in space and time. Aquatic Ecology. 2004;38 (2):317-348. https://doi.org/10.1023/B:AECO.0000032090.72702.a9
Jón S. Ólafsson , David M. Paterson. Alteration of biogenic structure and physical properties by tube-building chironomid larvae in cohesive sediments. Aquatic Ecology. 2004;38 (2):219-229. https://doi.org/10.1023/B:AECO.0000032050.10546.bb
Haraldur R. Ingvason, Jón S. Ólafsson , Arnþór Garðarsson. Food selection of Tanytarsus gracilentus larvae (Diptera: Chironomidae): An analysis of instars and cohorts. Aquatic Ecology. 2004;38 (2):231-237. https://doi.org/10.1023/B:AECO.0000032053.67992.03
Arnþór Garðarsson, Árni Einarsson, Gísli Már Gíslason, Þóra Hrafnsdóttir, Haraldur R. Ingvarsson, Erlendur Jónsson, Jón S. Ólafsson . Population fluctuations of chironomid and simuliid Diptera at Myvatn in 1977–1996. Aquatic Ecology. 2004;38 (2):209-217. https://doi.org/10.1023/B:AECO.0000032051.14118.e1

2001

Brigitte Lods-Crozet, Valeria Lencioni, Jón S. Ólafsson , Deborah L. Snook, G. Velle, John E. Brittain, Emmanuel Castella , B. Rossaro. Chironomid (Diptera: Chironomidae) communities in six European glacier‐fed streams. Freshwater Biology. 2001;46 (12):1791-1809. https://doi.org/10.1046/j.1365-2427.2001.00859.x
Emmanuel Castella , Hákon Aðalsteinsson, John E. Brittain, Gísli Már Gíslason, Anthony Lehmann, Valeria Lencioni, Brigitte Lods-Crozet, Bruno Maiolini, Alexander M. Milner, Jón S. Ólafsson , Svein J. Saltveit, Deborah L. Snook. Macrobenthic invertebrate richness and composition along a latitudinal gradient of European glacier‐fed streams. Freshwater Biology. 2001;46 (12):1811-1831. https://doi.org/10.1046/j.1365-2427.2001.00860.x
Gísli Már Gíslason, Hákon Aðalsteinsson, Iris Hansen , Jón S. Ólafsson , Kristín Svavarsdóttir. Longitudinal changes in macroinvertebrate assemblages along a glacial river system in central Iceland. Freshwater Biology. 2001;46 (12):1737-1751. https://doi.org/10.1046/j.1365-2427.2001.00855.x

2000

Gísli Már Gíslason, Jón S. Ólafsson , Hákon Aðalsteinsson. Life in Glacial and Alpine Rivers in Central Iceland in Relation to Physical and Chemical Parameters. Hydrology Research. 2000;31 (4-5):411-422. https://doi.org/10.2166/nh.2000.0025

1998

Gísli Már Gíslason, Jón S. Ólafsson , Hákon Aðalsteinsson. Animal Communities in Icelandic Rivers in Relation to Catchment Characteristics and Water Chemistry: Preliminary Results. Hydrology Research. 1998;29 (2):129-148. https://doi.org/10.2166/nh.1998.0008
Sigurður Reynir Gíslason, Eydís Salome Eiríksdóttir , Jón S. Ólafsson . Efnasamsetning vatns í kísilgúr á botni Mývatns. 1998;5:30.
Jón S. Ólafsson . Íslensk votlendi: verndun og nýting. 1998.

1992

Jón S. Ólafsson . A comparative study on mouthpart morphology of certain larvae of Chironomini (Diptera: Chironomidae) with reference to the larval feeding habits. Journal of Zoology. 1992;228 (2):183-204. https://doi.org/10.1111/j.1469-7998.1992.tb04602.x
Jón S. Ólafsson . Vertical microdistribution of benthic chironomid larvae within a section of the littoral zone of a lake. Netherland Journal of Aquatic Ecology. 1992;26 (2-4):397-403. https://doi.org/10.1007/BF02255268
Jón S. Ólafsson . The feeding biology and micro-distribution of certain chironomid larvae (Diptera: Insecta) in a lentic environment, with emphasis on first instar larvae. 1992.

1987

Jón S. Ólafsson . Fæða mýlirfa (Chironomidae: Diptera) í Mývatni. 1987.
Fannst þér efnið á síðunni hjálplegt?