Popular science book

• Thompson Des; Ingvar Byrkjedal (2001). Shorebirds. (external link)

Academic article

• Oleg V. Karamushko; Ingvar Byrkjedal; Jørgen Schou Christiansen et al. (2017). First record of juvenile northern wolffish (Anarhichas denticulatus Krøyer, 1845) on the continental slope of Northeast Greenland. (external link)
• Ingvar Byrkjedal; Jørn Madsen (2008). Autumn bird observations in the Northeast Greenland sea ice. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Thomas Borge et al. (2005). Egg size in relation to sex of embryo, brood sex ratios and laying sequence in northern lapwings (Vanellus vanellus). (external link)
• Terje Lislevand; Gaute Bø Grønstøl; Ingvar Byrkjedal et al. (2001). Mate replacement and male brood adoption in lapwing Vanellus vanellus. (external link)
• Ingvar Byrkjedal; Lemvig Svend (2002). Grønlandshavkrøkle Nansenia groenlandica (Reinhardt, 1840) funnet i det sørlige Barentshav. (external link)
• Ingvar Byrkjedal; Per Pethon; Rudolf Svendsen (2002). Spisshalekutling Leseurigobius friesii funnet i Rogaland. (external link)
• Tore Larsen; Tex A. Sordahl; Ingvar Byrkjedal (1996). Factors related to aggressive nest protection behaviour : a comparative study of Holarctic waders. (external link)
• Gaute Bø Grønstøl; Ingvar Byrkjedal; Jo Esten Hafsmo et al. (1999). Northern lapwing Vanellus vanellus copulating with a grass turf. (external link)
• Ingvar Byrkjedal; Gaute Grønstøl; Terje Lislevand et al. (1997). Mating system and territory in Lapwings Vanellus vanellus. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad; Svein Efteland et al. (2012). Population trends of northern lapwing, Eurasian curlew and Eurasian oystercatcher over 15 years in a southwest Norwegian farmland. (external link)
• Jørgen Schou Christiansen; Erik Bonsdorff; Ingvar Byrkjedal et al. (2016). Novel biodiversity baselines outpace models of fish distribution in Arctic waters. (external link)
• Ingvar Byrkjedal (2000). The role of velvet scoters Melanitta fusca for pursuit-diving seabirds in winter. (external link)
• Ingvar Byrkjedal; Gaute Bø Grønstøl; Jo Esten Hafsmo et al. (2000). Chick punishment and chick adoption in Northen Lapwings. (external link)
• Jo Esten Hafsmo; Ingvar Byrkjedal; Gaute Bø Grønstøl et al. (2001). Simultaneous tetragyny in Northern Lapwing Vanellus vanellus. (external link)
• Ingvar Byrkjedal; Gunnar Langhelle (2020). Walleye pollock Gadus chalcogrammus Pallas, 1814 found north of Spitsbergen indicates a Pacific-Atlantic connection in the species. (external link)
• Ingvar Byrkjedal; Arild Breistøl; Alf Tore Mjøs et al. (2000). Winter habitat of white-billed and great northern divers on the coast of Norway. (external link)
• Ingvar Byrkjedal (2000). The role of velvet scoters Melanitta fusca for pursuit-diving seabirds in winter. (external link)
• Ingvar Byrkjedal; Arild Breistøl; Alf Tore Mjøs et al. (2000). Winter habitat of white-billed and great northern divers on the coast of Norway. (external link)
• Jo Esten Hafsmo; Ingvar Byrkjedal; Gaute Bø Grønstøl et al. (2000). Simultaneous tetragyny in northern lapwing, Vanellus vanellus. (external link)
• Ingvar Byrkjedal (1997). Identifying inter-dive intervals in time-activity budget studies of diving ducks. (external link)
• Ingvar Byrkjedal (2017). Interspecific aggression by wintering Great Northern Divers Gavia immer. (external link)
• Gaute Bø Grønstøl; Ingvar Byrkjedal; Øyvind Fiksen (2003). Predicting polygynous settlement while incorporating varying female competitive strength. (external link)
• Gaute Bø Grønstøl; Ingvar Byrkjedal; Øyvind Fiksen (2003). Predicting polygonous settlement while incorporating varying female competitive strength. (external link)
• Ingvar Byrkjedal; Gunnar Langhelle; Jørgen Schou Christiansen et al. (2018). The distribution of the fathead sculpin species Cottunculus subspinosus Jensen, 1902. (external link)
• Arve Lynghammar; Ingvar Byrkjedal; Berit Margrete Bugjerde et al. (2020). Approaching the Arctic: the occurrence of Parin’s spinyfin Diretmichthys parini (Beryciformes: Diretmidae) in the Nordic Seas. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad; Svein Efteland et al. (2003). Bestandsutvikling hos vipe, storspove og tjeld på Jæren, 1997-2002. (external link)
• Ingvar Byrkjedal (2003). Første funn av småtannvassild Glossanodon leioglossus (Valenciennes, 1848) i nord-europeiske farvann. (external link)
• David John Rees; Ingvar Byrkjedal (2013). Lack of taxonomic information from parietal spine size invalidates subspecies in the Atlantic hookear sculpin Artediellus atlanticus. (external link)
• Ingvar Byrkjedal; Jørgen Schou Christiansen; Oleg V. Karamushko et al. (2015). Arctic skate Amblyraja hyperborea preys on remarkably large glacial eelpouts Lycodes frigidus. (external link)
• Silje Aakre Solheim; Kjetil Sagerup; Sandra Huber et al. (2016). The black-legged kittiwake preen gland—an overlooked organ for depuration of fat-soluble contaminants?. (external link)
• Odd Aksel Bergstad; Edda Johannesen; Åge Sigurd Høines et al. (2018). Demersal fish assemblages in the boreo-Arctic shelf waters around Svalbard during the warm period 2007–2014. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad; Svein Efteland et al. (2012). Hvor mange viper hekker det på Jæren?. (external link)
• Ingvar Byrkjedal; Åge Høines (2007). Distribution of demersal fish in the south-western Barents Sea. (external link)
• Ingvar Byrkjedal; Alexei M. Orlov (2007). A new species of Cottunculus (Teleostei : Psychrolutidae) from the mid Atlantic ridge. (external link)
• Ingvar Byrkjedal; Jan Yde Poulsen; John Galbraith (2011). Leptoderma macrophthalmum n.sp., a new species of smooth-head (Otocephala: Alepocephalidae) from the Mid Atlantic Ridge. (external link)
• John Skartveit; Reidun Pommeresche; Gunnar Langhelle et al. (2006). Distribution of Sorex minutus and Sorex araneus (Mammalia: Insectivora) within a forest area in Western Norway. (external link)
• Ingvar Byrkjedal; Göran Högstedt (2022). Numbers of Horned Lark Eremophila alpestris are increasing at high alpine and arctic breeding sites in Norway.. (external link)
• Michaela Aschan; Oleg V. Karamushko; Ingvar Byrkjedal et al. (2009). Records of the gadoid fish Arctogadus glacialis (Peters, 1874) in the European Arctic. (external link)
• Alexei Orlov; Charles Cotton; Ingvar Byrkjedal (2007). Deepwater skates (Rajidae) collected during the 2004 cruises of R.V. "G.O. Sars" and M.S. "Loran" in the Mid-Atlantic Ridge area. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad; Svein Efteland et al. (2012). Hekkebestanden av storspove på Jæren. (external link)
• Ingvar Byrkjedal; Gaute Grønstøl; Jo Esten Hafsmo et al. (2000). Chick punishment and chick adoption in Northern Lapwings. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Grønstøl et al. (2001). Mate replacement and male brood adoption in Lapwings Vanellus vanellus. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Grønstøl et al. (2004). Incubation Behaviour in Northern Lapwings: Nocturnal Nest Attentiveness and Possible Importance of Individual Breeding Quality. (external link)
• Gaute Grønstøl; Ingvar Byrkjedal; Jo Esten Hafsmo et al. (1999). Northern Lapwing Vanellus vanellus copulating with a grass turf. (external link)
• Filipe M. Porteiro; Tracey T. Sutton; Ingvar Byrkjedal et al. (2017). Fishes of the Northern Mid-Atlantic Ridge collected during the MAR-ECO Cruise in June-July 2004. An annotated checklist.. (external link)
• Gaute Grønstøl; Ingvar Byrkjedal; Øyvind Fiksen (2003). Predicting polygynous settlement while incorporating varying female competitive strength. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Oddvar Heggøy et al. (2021). Population status, trends and conservation of meadow-breeding waders in Norway. (external link)
• Jo Esten Hafsmo; Ingvar Byrkjedal; Gaute Grønstøl et al. (2001). Simultaneous tetragyny in Northern Lapwing Vanellus vanellus. (external link)
• Ingvar Byrkjedal; Vegard Bang Fjeldheim; Lene Synnøve Halvorsen et al. (2022). Diet of three sympatric species of granivorous songbirds in a Norwegian high mountain area during the early breeding season. (external link)
• Ingvar Byrkjedal; John Atle Kålås (2012). Censuses of breeding birds in a South Norwegian arctic-alpine habitat three decades apart show population declines in the most common species. (external link)
• Terje Lislevand; Bohumír Chutný; Ingvar Byrkjedal et al. (2015). Red-spotted Bluethroats Luscinia s. svecica migrate along the Indo-European flyway: a geolocator study. (external link)
• Gaute Grønstøl; Terje Lislevand; Ingvar Byrkjedal et al. (2013). Chick growth and survival in northern lapwings Vanellus vanellus indicate that secondary females do the best of a bad job. (external link)
• Ingvar Byrkjedal; Gunnar Langhelle; Thomas de Lange Wenneck et al. (2011). Lycodes adolfi Nielsen and Fosså, 1993 (Teleostei: Zoarcidae) found in the Arctic Ocean. (external link)
• Sarah Lou Malick-Wahls; Ingvar Byrkjedal; Barbara Ganter et al. (2024). Morphometric differences between sexes and populations in Norwegian Dunlins Calidris alpina. (external link)
• Ingvar Byrkjedal; Langhelle Gunnar; Lemvig Svend (2001). Funn av istorsk Arctogadus glacialis (Peters, 1874) øst for Svalbard. (external link)
• Gaute Grønstøl; Ole Langeland Myking; Terje Lislevand et al. (2007). Plasma testosterone levels of incubating female northern lapwings Vanellus vanellus. (external link)
• Jørgen Schou Christiansen; Svein Erik Fevolden; I Byrkjedal (2005). The occurrence of Theragra finnimarchica Koefoed, 1956 (Teleostei, Gadidae), 1932-2004. (external link)
• Ingvar Byrkjedal; Steinar Eldøy; Svein Grundetjern et al. (1997). Feeding associations between red-necked grebes Podiceps griseigena and velvet scoters Melanitta fusca in winter. (external link)
• Terje Lislevand; Ingvar Byrkjedal (2004). Incubation behaviour in male Northern Lapwings Vanellus vanellus in relation to mating opportunities and female body condition. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Bø Grønstøl et al. (2004). Incubation behaviour in Northern Lapwings: Nocturnal nest attentiveness and possible importance of individual breeding quality. (external link)
• Christoffer Schander; Hans Tore Rapp; Jon Anders Kongsrud et al. (2010). The fauna of hydrothermal vents on the Mohn Ridge (North Atlantic). (external link)
• John Atle Kålås; Simen Bretten; Ingvar Byrkjedal et al. (1994). Radiocesium (137Cs) from the Chernobyl reactor in Eurasian woodcock and earthworms. (external link)
• Karl Frafjord; Ingvar Byrkjedal (1994). Terrestrial habitat use by frogs and toads, Rana temporaria L: and Bufo bufo (L.), in West Norway. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Grønstøl (2009). Dispersal and age at first breeding in Norwegian Northern Lapwings (Vanellus vanellus). (external link)
• I. Byrkjedal; D.J. Rees; Jørgen Schou Christiansen et al. (2008). The taxonomic status of Theragra finnmarchica Kofoed, 1956 Teleostei: Gadidae): perspectives from morphological and molecular data. (external link)
• Fred Marius Svendsen; Gunnar Langhelle; Ingvar Byrkjedal (2011). First record of a synaphobranchid eel in the Arctic: Diastobranchus capensis caught near Spitsbergen. (external link)
• Ingvar Byrkjedal; Olav Rune Godø; Mikko Heino (2004). Northward range extensions of some mesopelagic fishes in the Northeastern Atlantic. (external link)
• Tore Christian Michaelsen; Ingvar Byrkjedal (2002). 'Magic carpet' flight in shorebirds attacked by raptors on a migrational stopover site. (external link)
• Ingvar Byrkjedal; Torleiv Brattegard; Peter Rask Møller (2009). Lycodes adolfi Nielsen & Fosså, 1993 (Teleostei: Zoarcidae) recorded near Jan Mayen and in the eastern part of the Norwegian Sea. (external link)
• K. Frafjord; Ingvar Byrkjedal (1994). Terrestrial habitat use by frogs and toads, Rana temporaria L. and Bufo bufo (L.), in West Norway. (external link)
• J. A. Kålås; S. Bretten; Ingvar Byrkjedal et al. (1994). Radiocesium (%1%3%7Cs) from the Chernobyl Reactor in Eurasian Woodcock and Earthworms in Norway. (external link)
• Rupert Wienerroither; Edda Johannesen; Andrey Dolgov et al. (2011). Atlas of the Barents Sea fishes. (external link)
• Ingvar Byrkjedal; Gaute Bø Grønstøl; Terje Lislevand et al. (1997). Mating systems and territory in Lapwings Vanellus vanellus. (external link)
• Ingvar Byrkjedal (2011). Kleptoparasitism of wintering Great Northern Divers Gavia immer by gulls. (external link)
• Ingvar Byrkjedal; Rupert Wienerroither; Gjertrud Jensen (2016). Lebetus scorpioides and Buenia jeffreysii (Teleostei: Gobiidae) found north of the Arctic Circle. (external link)
• Jan Yde Poulsen; Tetsuya Sado; Christoph Hahn et al. (2016). Preservation obscures pelagic deep-sea fish diversity: doubling the number of sole-bearing opisthoproctids and resurrection of the genus Monacoa (Opisthoproctidae, Argentiniformes). (external link)
• David John Rees; Ingvar Byrkjedal; Tracey T. Sutton (2017). Pruning the pearlsides: reconciling morphology and molecules in mesopelagic fishes (Maurolicus: Sternoptychidae). (external link)
• Ingvar Byrkjedal (2011). Social behaviour of wintering Great Northern Divers Gavia immer in relation to age categories. (external link)
• Jan Yde Poulsen; Ingvar Byrkjedal; Endre Willassen et al. (2013). Mitogenomic sequences and evidence from unique gene rearrangements corroborate evolutionary relationships of Myctophiformes (Neoteleostei). (external link)
• Ingvar Byrkjedal; Terje Lislevand; Stefanie Vogler (2012). Do passerine birds utilise artificial light to prolong their diurnal activity during winter at northern latitudes?. (external link)
• Odd Aksel Bergstad; Tone Falkenhaug; Olafur S. Astthorsson et al. (2008). Towards improved understanding of the diversity and abundance patterns of the mid-ocean ridge macro- and megafauna. (external link)
• Ingvar Byrkjedal; Gaute Grønstøl; Terje Lislevand (2016). Possible resource-defence polygyny in the extinct Rodrigues Solitaire Pezophaps solitaria (Columbidae: Raphini). (external link)
• Vegard Ankarstrand Larsen; Terje Lislevand; Ingvar Byrkjedal (2003). Is clutch size limited by incubation ability in Northern Lapwings?. (external link)
• Vegard Bang Fjeldheim; Ingvar Byrkjedal; Terje Lislevand (2023). Selection of territorial habitat in a declining population of Lapland Longspurs Calcarius lapponicus. (external link)
• Ingvar Byrkjedal; David J. Rees; Endre Willassen (2007). Lumping lumpsuckers: molecular and morphological insights into the taxonomic status of Eumicrotremus spinosus (Fabricius, 1776) and Eumicrotremus eggvinii Koefoed, 1956 (Teleostei: Cyclopteridae). (external link)
• Tracey T. Sutton; Filipe M. Porteiro; Mikko Petteri Heino et al. (2008). Vertical structure, biomass and topographic association of deep-pelagic fishes in relation to a mid-ocean ridge system. (external link)
• Ingvar Byrkjedal (1985). Time budget and parental labour division in breeding black-tailed godwits Limosa l. limosa. (external link)
• John Atle Kålås; Ingvar Byrkjedal (1981). Vadefuglenes hekkestatus i Norge med Svalbard. (external link)
• Ingvar Byrkjedal; John Atle Kålås (1985). Seasonal variation in egg size in golden ploevr Pluvialis apricaria and dotterel Charadrius morinellus populations. (external link)
• Ingvar Byrkjedal (1989). Time constraints and vigilance: breeding season diet of the dotterel (Charadrius morinellus). (external link)
• Ingvar Byrkjedal; Steinar Eldøy; Eirik Jacobsen (1981). Høst- og vinterbestanden av vannfugl på Jæren 1980/81. (external link)
• Ingvar Byrkjedal (1989). Habitat use and resource overlap by breeding golden plovers and dotterels (Pluvialis apricaria, Charadrius morinellus). (external link)
• Ingvar Byrkjedal (1980). Munkens og jernspurvens opptreden på Jæren vinterstid. (external link)
• Ingvar Byrkjedal; Tore Larsen; Jostein Moldsvor (1988). Song and mating behaviour of the spotted redshank Tringa erythropus. (external link)
• Arnold Håland; John Atle Kålås; Lars Løfaldli et al. (1980). Size, sex ratio, and age composition of the urban winter population of mallards Anas platyrhynchos in Bergen, western Norway. (external link)
• Ingvar Byrkjedal (1989). Nest habitat and nesting success of lesser golden-plovers. (external link)
• Ingvar Byrkjedal (1985). Time-activity budget for breeding greater golden-plovers in Norwegian mountains. (external link)
• Ingvar Byrkjedal; Steinar Eldøy (1984). Høst- og vinterbestanden av vannfugl på Jæren 1983/84 og noen oppsummeringer for perioden 1979/80-83/84. (external link)
• Ingvar Byrkjedal (1980). Summer food of the golden plover Pluvialis apricaria at Hardangervidda, South Norway. (external link)
• Ingvar Byrkjedal (1980). Nest predation in relation to snow-cover - a possible factor influencing the start of breeding in shorebirds. (external link)
• Ingvar Byrkjedal (1987). Antipredator behavior and breeding success in greater golden-plover and Eurasian dotterel. (external link)
• Ingvar Byrkjedal; Steinar Eldøy (1980). Bestanden av ender, svaner og sothøns på Jæren gjennom vinterhalvåret i tiårs-perioden 1965/66-1974/75. (external link)
• Ingvar Byrkjedal; Gunnar Langhelle (1986). Sex and age biased mobility in hawk owls Surnia ulula. (external link)
• Ingvar Byrkjedal (1978). Altitudinal differences in breeding schedules of golden plovers Pluvialis apricaria (L.) in South Norway. (external link)
• Ingvar Byrkjedal; Steinar Eldøy (1980). Høst- og vinterbestanden av vannfugl på Jæren 1979/80. (external link)
• Ingvar Byrkjedal (1977). Tetthet av hekkende fugler i lyngheibiotop på Høg-Jæren. (external link)
• John Atle Kålås; Ingvar Byrkjedal (1984). Line transects of waders in an alpine area: a methodological study. (external link)
• Rupert Wienerroither; Kjell Harald Nedreaas; Franz Uiblein et al. (2011). The marine fishes of Jan Mayen Island, NE Atlantic – past and present. (external link)
• I. Byrkjedal; Wim Vader (2003). (The sailray Dipturus linteus as a regular species in the southwesternmost Barents Sea.). (external link)
• Ingvar Byrkjedal (1983). Første norske funn av kittlitzlo Charadrius pecuarius TEMM. (external link)
• Ingvar Byrkjedal (1980). Sesongmessige svingninger i forekomstene av rovfugl på Jæren. (external link)
• Ingvar Byrkjedal (1980). Høsttrekkets forløp hos endel vadere på Jæren. (external link)
• Ingvar Byrkjedal; Steinar Eldøy (1983). Høst- og vinterbestanden av vannfugl på Jæren. (external link)
• Ingvar Byrkjedal; John Atle Kålås; Arnold Håland (1986). Summer food of a mountain population of common gull Larus canus. (external link)
• Ingvar Byrkjedal (1990). Sond flight of the pintail snipe Gallonago stenura on the breeding grounds. (external link)
• Ingvar Byrkjedal (1989). Nest defense behavior of lesser golden-plovers. (external link)
• John Atle Kålås; Ingvar Byrkjedal (1984). Breeding chronology and mating system of the Eurasian dotterel (Charadrius morinellus). (external link)
• Ingvar Byrkjedal; Gunnar Langhelle (1985). Vinterhekkende kattugler i Bergen. (external link)
• Ingvar Byrkjedal (1971). Islom på Jæren i juli-august. (external link)
• Ingvar Byrkjedal (1987). Short-billed dowitchers associate closely with lesser golden-plovers. (external link)
• Einar Alendal; Ingvar Byrkjedal (1976). Population size and reproduction of the reindeer (Rangifer tarandus platyrhynchus) on Nordenskiöld Land, Svalbard. (external link)
• Ingvar Byrkjedal (1974). Heiloen, Pluvialis apricaria, som hekkefugl i Rogaland. (external link)
• Ingvar Byrkjedal (1973). Draktskifte hos hettemåke (Larus ridibundus) i Bergen våren 1971. (external link)
• Ingvar Byrkjedal; Einar Alendal; Odd F. Lindberg (1976). Counts of sea-birds between Norway and Spitsbergen in the summer 1973. (external link)
• Tore Larsen; Tex A. Sordahl; Ingvar Byrkjedal (1996). Factors related to aggressive nest protection behaviour: a comparative study of Holarctic waders. (external link)
• Ingvar Byrkjedal (1991). The role of drive conflicts as a mechanism for nest-protection behaviour in the shorebird Pluvialis dominica. (external link)
• Ingvar Byrkjedal; John Atle Kålås (1983). Plover's Page turns into Plover's Parasite: a look at the dunlin/golden plover association. (external link)
• Ingvar Byrkjedal; Steinar Eldøy; Eirik Jacobsen (1982). Oljeskadet sjøfugl langs kysten av Rogaland og Vest-Agder i januar-mars 1982. (external link)
• Ingvar Byrkjedal; Anders Bernhoft-Osa (1982). Trends in the numbers of migrating shorebirds at Revtangen Bird Observatory, SW Norway, in the 21-year period 1947-67. (external link)
• Ingvar Byrkjedal (1978). Variation and secondary intergradation in SW-Norwegian golden plover Pluvialis apricaria populations. (external link)
• Ingvar Byrkjedal; Steinar Eldøy (1982). Høst- og vinterbestanden av vannfugl i januar-mars 1982. (external link)
• Ingvar Byrkjedal (1978). Autumn diet of golden plovers Pluvialis apricaria on farmland and a coastal heather moor in South Norway. (external link)
• Kjell Einar Erikstad; Ingvar Byrkjedal; John Atle Kålås (1989). Resource partitioning among seven carbid species on Hardangervidda, southern Norway. (external link)
• Ingvar Byrkjedal; Tore Larsen; Jostein Moldsvor (1989). Sexual and antagonistic behaviour of bar-tailed godwits on the breeding grounds. (external link)
• Ingvar Byrkjedal (1975). Smågnagerbein som kalsiumkilde ved eggproduksjon hos heilo. (external link)
• Ingvar Byrkjedal (1975). Svalbardrypas føde i august. (external link)
• Catherine W. Mecklenburg; Ingvar Byrkjedal; Oleg V. Karamushko et al. (2014). Atlantic fishes in the Chukchi Borderland. (external link)
• Ingvar Byrkjedal; Silje H. Hadler-Jacobsen; David John Rees et al. (2014). Molecular and morphological variation in saddled fathead sculpins (Psychrolutidae: Cottunculus) of the north-east Atlantic Ocean, with a synonymy of three species. (external link)
• Beate Schonert; Ingvar Byrkjedal; Terje Lislevand (2014). Plumage ornaments in male Northern Lapwings Vanellus vanellus may not be a reliable indicator of their mating success. (external link)
• Ingvar Byrkjedal; Gaute Bø Grønstøl; Jo Esten Hafsmo et al. (2000). Chick punishment and chick adoption in Northen Lapwings. (external link)
• Ingvar Byrkjedal; Terje Lislevand; Vegard Finset Fjeldheim (2016). The appearance of Lapland Buntings Calcarius lapponicus in song flight. (external link)
• Gaute Grønstøl; Terje Lislevand; Ingvar Byrkjedal (2014). Resident female northern lapwings Vanellus vanellus fight to exclude settlement by secondary females. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad; Svein Efteland (2019). Bestandsendring hos storspove på Jæren 1997-2019. (external link)
• Ingvar Byrkjedal; Gunnar Langhelle (2019). Selective feeding on jellyfish organs by Northern Fulmars Fulmarus glacialis. (external link)
• Ingvar Byrkjedal; Terje Lislevand; Gaute Grønstøl (2013). Rapid sampling of males and territories by female northern lapwing, Vanellus vanellus. (external link)
• Fred Marius Svendsen; Ingvar Byrkjedal (2013). Morphological and molecular variation in Synaphobranchus eels (Anguilliformes: Synaphobranchidae) of the Mid-Atlantic Ridge in relation to species diagnostics. (external link)
• Ingvar Byrkjedal (2006). Sparrowhawk killed by its prey. (external link)
• Ingvar Byrkjedal; Terje Lislevand (2011). “Cat-beside-mousehole–technique” employed by Nordmann’s Greenshank hunting for crabs. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad; Svein Efteland (2018). Nedgang i hekkebestanden av tjeld i jordbrukslandskap på Jæren. (external link)

Media interview

• Ingvar Byrkjedal; Ola Fintland (2016). Restaurant for trekkfugler. (external link)
• Ingvar Byrkjedal; Leif Tore Sædberg (2016). Jæren er et eldorado for fuglekikking. (external link)
• Kjerstin Gjengedal; Ingvar Byrkjedal; Endre Willassen et al. (2008). Ulike artar var mann og kone. (external link)

Lecture

• Ingvar Byrkjedal (2016). Fuglefaunaen langs Jærstrendene. (external link)
• Ingvar Byrkjedal (2010). Har vipa en framtid på Jæren?. (external link)
• Ingvar Byrkjedal (2010). Vipa - bestandsforhold og trusselbilde. (external link)
• Ingvar Byrkjedal (2017). Vipa - Jærens "nasjonalfugl". (external link)
• Ingvar Byrkjedal (2020). Med nebb som en nymåne - Numenius-spovene og deres levesett. (external link)

Conference poster

• Terje Lislevand; Ingvar Byrkjedal; Gaute Bø Grønstøl et al. (2000). Variable male behaviour during incubation in a polygynous shorebird. (external link)
• Katrine Kongshavn; Jon Anders Kongsrud; Manuel Antonio E. Malaquias et al. (2016). Marin biodiversitetsforskning ved Universitetsmuseet i Bergen. (external link)
• David John Rees; Ingvar Byrkjedal; Endre Willassen (2009). Dvelving deep with DNA barcodes: expanding data for MAR-ECO fishes. (external link)
• Svein-Erik Fevolden; Kim Præbel; I. Byrkjedal et al. (2008). The rare Theragra finnmarchica (Gadidae) - endangered or never established. (external link)
• Svein-Erik Fevolden; Kim Præbel; I. Byrkjedal et al. (2008). The rare Theragra finnmarchica (Gadidae) - endangered or never established?. (external link)
• Terje Lislevand; Ingvar Byrkjedal (2002). Clutch replacement and male behavior in Northern Lapwings. (external link)
• Ingvar Byrkjedal; Endre Willassen; Robert Hanner (2007). Barcoding deep sea fishes from the northern mid Atlantic. (external link)
• Ingvar Byrkjedal; Endre Willassen; Robert Hanner (2007). DNA barcoding northern mid Atlantic deep sea fishes. (external link)
• Gaute Bø Grønstøl; Ingvar Byrkjedal; Øyvind Fiksen (2000). Predicting polygynous settlement while incorporating varying female despotism. (external link)

Academic book chapter

• Ingvar Byrkjedal; John Atle Kålås (1991). Vadefugler. (external link)
• Ingvar Byrkjedal (1991). Vadere, måker og alker. (external link)
• Michael Vecchione; Odd Aksel Bergstad; Ingvar Byrkjedal et al. (2010). Biodiversity patterns and processes on the Mid-Atlantic ridge. (external link)
• Ingvar Byrkjedal; L. Campbell; V. Galushin et al. (1997). Tundra, mires and moorland. (external link)
• Ingvar Byrkjedal (2006). Lappspove Limosa lapponica. (external link)
• Ingvar Byrkjedal (2006). Enkeltbekkasin Gallinago gallinago. (external link)
• Ingvar Byrkjedal (2006). Kvartbekkasin Lymnocryptes minimus. (external link)
• Des B.A. Thompson; John Atle Kålås; Ingvar Byrkjedal (2012). Arctic-alpine mountain birds in northern Europe: contrasts between specialists and generalists. (external link)
• Ingvar Byrkjedal (2006). Heilo Pluvialis apricaria. (external link)
• Ingvar Byrkjedal (2006). Tundralo Pluvialis squatarola. (external link)
• Godtfred Anker Halvorsen; Ingvar Byrkjedal; D. Thompson (1998). Chapter 5. The phylogeny of the Tundra Plovers. (external link)

Exhibition production

• Morten Steffensen; Endre Willassen; Ingvar Byrkjedal (2004). Dyphavets hemmeligheter. (external link)
• Terje Lislevand; Gunnar Langhelle; Steffen Roth et al. (2019). De første virveldyr på land. (external link)
• Terje Lislevand; Ari Olavi Puolakoski; Christina Holmefjord et al. (2019). Dine nærmeste slektninger. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Adele Mennerat et al. (2019). Dinosaurene blant oss. (external link)
• Ingvar Byrkjedal; Jo Høyer; Anne Aspen et al. (2010). Deeper than Light/ Dypere enn lyset. (external link)
• Ingvar Byrkjedal (2010). Dyphavets hemmeligheter. (external link)
• Ingvar Byrkjedal; Jo Høyer; Anne Aspen et al. (2010). Deeper than Light/ Dypere enn lyset. (external link)

Popular science article

• Ingvar Byrkjedal (2018). Hønsehauk og kjerringråd. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad (2018). Sint gluttsnipe, saltkjertler og sky byttedyr. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Grønstøl (2002). Vipenes atferd og levesett i hekketiden. (external link)
• Ingvar Byrkjedal; Endre Willassen (2005). Dyrelivet i et undersjøisk alpelandskap - om MAR-ECO-toktet til Atlanterhavsryggen i 2004. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Bø Grønstøl (2002). Vipenes atferd og levesett i hekketiden. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Bø Grønstøl (2002). Vipenes atferd og levesett i hekketida. (external link)
• Ingvar Byrkjedal; Gunnar Langhelle; Svend Lemvig (2001). En svart/hvit nettålebrosme fra Barentshavet. (external link)
• Ingvar Byrkjedal; Wim Vader (2003). Hvitskate Dipturus linteus i Nord-Norge og det sørvestlige Barentshav. (external link)
• O. A. Bergstad; Å. S. Høines; A. M. Orlov et al. (2008). Species composition and abundance patterns of grenadiers on the Mid-Atlantic Ridge between Iceland and the Azores. (external link)
• John Atle Kålås; Ingvar Byrkjedal (1987). Rugda på Vestlandet som forskningsobjekt. (external link)
• Ingvar Byrkjedal; Arnold Håland (1985). Dyrelivet på Europas største høyfjellsvidde. (external link)
• Ingvar Byrkjedal; Steinar Eldøy (1981). Forekomsten av gjess på Jæren - vinterbestand i perioden 1963/64-79/80 og variasjoner gjennom året. (external link)
• Odd Kjos-Hanssen; Ingvar Byrkjedal (1979). Variert natur - variert fauna. (external link)
• Jørgen Schou Christiansen; Svein-Erik Fevolden; Ingvar Byrkjedal (2013). Berlevågfisken - en nord-norsk torskefisk med aner i Stillehavet. (external link)
• Terje Lislevand; Ingvar Byrkjedal; Gaute Grønstøl (2016). Idyll og konflikt i vipenes familieliv. (external link)

Popular science book chapter

• Ingvar Byrkjedal (2015). A thousand nest cards - from Derek Ratcliffe to the University Museum of Bergen. (external link)
• Ingvar Byrkjedal (2019). "Jærens nasjonalfugl" - har vipa noen framtid her?. (external link)
• Ingvar Byrkjedal (2020). Sampling fish diversity along a submarine mountain chain. (external link)

Research report

• Jørgen Schou Christiansen; Svein-Erik Fevolden; Ingvar Byrkjedal (2009). Berlevågfisken - en nordnorsk torskefisk med aner i Stillehavet. (external link)
• Rupert Wienerroither; Trygve H. Hesthagen; Otte Bjelland et al. (2021). Fisker (Myxini, Petromyzontiformes, Chondrichthyes, Osteichthyes). Norsk rødliste for arter 2021. (external link)
• Rupert Wienerroither; Edda Johannesen; Andrey Dolgov et al. (2013). Atlas of the Barents Sea Fishes based on the winter survey. (external link)
• Catherine W. Mecklenburg; Arve Lynghammar; Edda Johannesen et al. (2018). Marine Fishes of the Arctic Region, Vol 1 & 2. (external link)

Conference lecture

• Catherine W. Mecklenburg; Arve Lynghammar; Edda Johannesen et al. (2018). Marine fishes of the arctic region. (external link)
• Hans Tore Rapp; Christoffer Schander; Jon Anders Kongsrud et al. (2011). Investigations of a unique fauna from hydrothermal vents along the Arctic Mid-Ocean Ridge (AMOR). (external link)
• Terje Lislevand; Barbara Ganter; Hans-Ulrich Rösner et al. (2023). Annual schedules of dunlins Calidris alpina from two widely separated Norwegian breeding populations. (external link)
• Terje Lislevand; Vegard Ankarstrand Larsen; Ingvar Byrkjedal (2002). Optimal clutch size in Northern Lapwings: an experiment. (external link)
• Terje Lislevand; Vegard Ankarstrand Larsen; Ingvar Byrkjedal (2002). Optimal clutch size in Northern Lapwings: an experiment. (external link)

Master’s thesis

• Ingvar Byrkjedal; Anuschka Polder; Anna Trøite Sandven et al. (2006). Persistent organic pollutants (POPs) in three arctic breeding bird species; Svalbard Rock Ptarmigan (Lagopus muta hyprborea), Little Auk (Alle alle) and Arctic Tern (Sterna paradisaea). (external link)

Working paper

• Ingvar Byrkjedal (1998). BZM 241 - Norges terrestre vertebrater. (external link)
• Catherine W. Mecklenburg; Ingvar Byrkjedal; Jørgen Schou Christiansen et al. (2013). List of Marine and Diadromous Fishes of the Arctic Region: Working Draft with Common Names and Zoogeographic Characterizations for the Circumpolar Biodiversity Monitoring Program. (external link)

Non-fiction monograph

• Ingvar Byrkjedal; Des Thompson (1998). Tundra Plovers: The Eurasian, Pacific and American Golden Plovers and Grey Plover. (external link)
• Ingvar Byrkjedal; D. Thompson (1998). Tundra Plovers: The Grey Plover, Eurasian, American and Pac ific golden Plovers. (external link)
• Ingvar Byrkjedal; Kåre Kyllingstad (2016). Fugler langs Jærstrendene. (external link)

Conference report

• B. Bogstad; K.V. Drevetnyak; Ingvar Byrkjedal et al. (2009). Fish. (external link)

Radio or TV participation

• Ingvar Byrkjedal (2017). Distriktsprogram - Rogaland: Fugler langs Jærstrendene. (external link)

Encyclopedia entry

• Jakob Gjøsæter; Trygve Hesthagen; Reidar Borgstrøm et al. (2010). Fisk "Pisces". (external link)

Conference abstract

• Endre Willassen; Tom Alvestad; Katrine Kongshavn et al. (2019). DNA barcoding marine fauna with NorBOL — current status. (external link)

Non-fiction book chapter

• Des B.A. Thompson; John Atle Kålås; Ingvar Byrkjedal (2012). Specialists and generalists breeding widely in arctic-alpine mountain habitats in northern Europe. (external link)
• Kjell Harald Nedreaas; Trygve H. Hesthagen; Rupert Wienerroither et al. (2015). Fisker (Myxini, Petromyzontiformes, Chondrichthyes og Osteichthyes). Norsk rødliste for arter 2015.. (external link)

See a complete overview of publications in NVA.