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Academic article
  • Show author(s) (2023). Selection of territorial habitat in a declining population of Lapland Longspurs Calcarius lapponicus. Ornis Norvegica. 1-11.
  • Show author(s) (2022). Numbers of Horned Lark Eremophila alpestris are increasing at high alpine and arctic breeding sites in Norway. Ornis Norvegica. 10-15.
  • Show author(s) (2022). Diet of three sympatric species of granivorous songbirds in a Norwegian high mountain area during the early breeding season. Ornis Norvegica. 16-26.
  • Show author(s) (2021). Population status, trends and conservation of meadow-breeding waders in Norway. Wader Study. 6-21.
  • Show author(s) (2020). Walleye pollock Gadus chalcogrammus Pallas, 1814 found north of Spitsbergen indicates a Pacific-Atlantic connection in the species. Fauna Norvegica. 137-140.
  • Show author(s) (2020). Approaching the Arctic: the occurrence of Parin’s spinyfin Diretmichthys parini (Beryciformes: Diretmidae) in the Nordic Seas . Fauna Norvegica. 43-46.
  • Show author(s) (2019). Selective feeding on jellyfish organs by Northern Fulmars Fulmarus glacialis. Ornis Norvegica. 15-18.
  • Show author(s) (2019). Bestandsendring hos storspove på Jæren 1997-2019. Falco. 70-71.
  • Show author(s) (2018). The distribution of the fathead sculpin species Cottunculus subspinosus Jensen, 1902. Fauna Norvegica. 13-17.
  • Show author(s) (2018). Nedgang i hekkebestanden av tjeld i jordbrukslandskap på Jæren. Falco. 94-99.
  • Show author(s) (2018). Demersal fish assemblages in the boreo-Arctic shelf waters around Svalbard during the warm period 2007–2014. Polar Biology. 125-142.
  • Show author(s) (2017). Pruning the pearlsides: reconciling morphology and molecules in mesopelagic fishes (Maurolicus: Sternoptychidae). Deep-Sea Research Part II: Topical Studies in Oceanography. 246-257.
  • Show author(s) (2017). Interspecific aggression by wintering Great Northern Divers Gavia immer. Ornis Norvegica. 49-54.
  • Show author(s) (2017). Fishes of the Northern Mid-Atlantic Ridge collected during the MAR-ECO Cruise in June-July 2004. An annotated checklist. Arquipélago. Ciências biológicas e marinhas. Life and marine sciences.. 1-125.
  • Show author(s) (2017). First record of juvenile northern wolffish (Anarhichas denticulatus Krøyer, 1845) on the continental slope of Northeast Greenland. Journal of Ichthyology. 633-638.
  • Show author(s) (2016). The black-legged kittiwake preen gland—an overlooked organ for depuration of fat-soluble contaminants? Polar Research.
  • Show author(s) (2016). Preservation obscures pelagic deep-sea fish diversity: doubling the number of sole-bearing opisthoproctids and resurrection of the genus Monacoa (Opisthoproctidae, Argentiniformes). PLOS ONE. 23 pages.
  • Show author(s) (2016). Possible resource-defence polygyny in the extinct Rodrigues Solitaire Pezophaps solitaria (Columbidae: Raphini). IBIS. 199-201.
  • Show author(s) (2016). Novel biodiversity baselines outpace models of fish distribution in Arctic waters. Die Naturwissenschaften. 6 pages.
  • Show author(s) (2016). Lebetus scorpioides and Buenia jeffreysii (Teleostei: Gobiidae) found north of the Arctic Circle. Fauna Norvegica. 47-50.
  • Show author(s) (2015). Red-spotted Bluethroats Luscinia s. svecica migrate along the Indo-European flyway: a geolocator study. Bird Study. 508-515.
  • Show author(s) (2015). Arctic skate Amblyraja hyperborea preys on remarkably large glacial eelpouts Lycodes frigidus. Journal of Fish Biology. 360-364.
  • Show author(s) (2014). Resident female northern lapwings Vanellus vanellus fight to exclude settlement by secondary females. IBIS. 461-465.
  • Show author(s) (2014). Plumage ornaments in male Northern Lapwings Vanellus vanellus may not be a reliable indicator of their mating success. Ornis Fennica. 79-87.
  • Show author(s) (2014). Molecular and morphological variation in saddled fathead sculpins (Psychrolutidae: Cottunculus) of the north-east Atlantic Ocean, with a synonymy of three species. Journal of Fish Biology. 821-837.
  • Show author(s) (2014). Atlantic fishes in the Chukchi Borderland. Marine Biodiversity. 127-150.
  • Show author(s) (2013). Rapid sampling of males and territories by female northern lapwing, Vanellus vanellus. The Wilson Journal of Ornithology. 809-811.
  • Show author(s) (2013). Morphological and molecular variation in Synaphobranchus eels (Anguilliformes: Synaphobranchidae) of the Mid-Atlantic Ridge in relation to species diagnostics. Marine Biodiversity. 407-420.
  • Show author(s) (2013). Mitogenomic sequences and evidence from unique gene rearrangements corroborate evolutionary relationships of Myctophiformes (Neoteleostei). BMC Evolutionary Biology.
  • Show author(s) (2013). Lack of taxonomic information from parietal spine size invalidates subspecies in the Atlantic hookear sculpin Artediellus atlanticus. Journal of Fish Biology. 277-285.
  • Show author(s) (2013). Chick growth and survival in northern lapwings Vanellus vanellus indicate that secondary females do the best of a bad job. Journal of Avian Biology. 376-382.
  • Show author(s) (2012). Population trends of northern lapwing, Eurasian curlew and Eurasian oystercatcher over 15 years in a southwest Norwegian farmland. Ornis Norvegica. 16-22.
  • Show author(s) (2012). Hvor mange viper hekker det på Jæren? Falco. 87-94.
  • Show author(s) (2012). Hekkebestanden av storspove på Jæren. Falco. 137-140.
  • Show author(s) (2012). Do passerine birds utilise artificial light to prolong their diurnal activity during winter at northern latitudes? Ornis Norvegica. 37-42.
  • Show author(s) (2012). Censuses of breeding birds in a South Norwegian arctic-alpine habitat three decades apart show population declines in the most common species. Ornis Norvegica. 43-47.
  • Show author(s) (2011). The marine fishes of Jan Mayen Island, NE Atlantic – past and present. Marine Biodiversity. 395-411.
  • Show author(s) (2011). Social behaviour of wintering Great Northern Divers Gavia immer in relation to age categories. Ornis Norvegica. 10-16.
  • Show author(s) (2011). Lycodes adolfi Nielsen and Fosså, 1993 (Teleostei: Zoarcidae) found in the Arctic Ocean. Polar Biology. 465-467.
  • Show author(s) (2011). Leptoderma macrophthalmum n.sp., a new species of smooth-head (Otocephala: Alepocephalidae) from the Mid Atlantic Ridge. Zootaxa. 49-56.
  • Show author(s) (2011). First record of a synaphobranchid eel in the Arctic: Diastobranchus capensis caught near Spitsbergen. Cybium. 255-256.
  • Show author(s) (2011). Atlas of the Barents Sea fishes. IMR/PINRO Joint Report Series. 1-272.
  • Show author(s) (2010). The fauna of hydrothermal vents on the Mohn Ridge (North Atlantic). Marine Biology Research. 155-171.
  • Show author(s) (2009). Records of the gadoid fish Arctogadus glacialis (Peters, 1874) in the European Arctic. Polar Biology. 963-970.
  • Show author(s) (2009). Fish. IMR/PINRO Joint Report Series. 50-62.
  • Show author(s) (2009). Dispersal and age at first breeding in Norwegian Northern Lapwings (Vanellus vanellus). Ornis Fennica. 11-17.
  • Show author(s) (2008). Vertical structure, biomass and topographic association of deep-pelagic fishes in relation to a mid-ocean ridge system. Deep-Sea Research Part II: Topical Studies in Oceanography. 161-184.
  • Show author(s) (2008). Towards improved understanding of the diversity and abundance patterns of the mid-ocean ridge macro- and megafauna. Deep-Sea Research Part II: Topical Studies in Oceanography. 1-5.
  • Show author(s) (2008). The taxonomic status of Theragra finnmarchica Kofoed, 1956 Teleostei: Gadidae): perspectives from morphological and molecular data. Journal of Fish Biology. 1183-1200.
  • Show author(s) (2008). Autumn bird observations in the Northeast Greenland sea ice. Dansk Ornitologisk Forenings Tidsskrift. 325-330.
  • Show author(s) (2007). Plasma testosterone levels of incubating female northern lapwings Vanellus vanellus. Ornis Norvegica. 124-126.
  • Show author(s) (2007). Lumping lumpsuckers: molecular and morphological insights into the taxonomic status of Eumicrotremus spinosus (Fabricius, 1776) and Eumicrotremus eggvinii Koefoed, 1956 (Teleostei: Cyclopteridae). Journal of Fish Biology. 111-131.
  • Show author(s) (2007). Distribution of demersal fish in the south-western Barents Sea. Polar Research. 135-151.
  • Show author(s) (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. Cybium. 35-48.
  • Show author(s) (2007). A new species of Cottunculus (Teleostei : Psychrolutidae) from the mid Atlantic ridge. Zootaxa. 63-68.
  • Show author(s) (2006). Sparrowhawk killed by its prey. Ornis Norvegica. 59-61.
  • Show author(s) (2006). Distribution of Sorex minutus and Sorex araneus (Mammalia: Insectivora) within a forest area in Western Norway. Fauna Norvegica, Serie A. 55-62.
  • Show author(s) (2005). The occurrence of Theragra finnimarchica Koefoed, 1956 (Teleostei, Gadidae), 1932-2004. Journal of Fish Biology.
  • Show author(s) (2005). Egg size in relation to sex of embryo, brood sex ratios and laying sequence in northern lapwings (Vanellus vanellus). Journal of Zoology. 81-87.
  • Show author(s) (2004). Northward range extensions of some mesopelagic fishes in the Northeastern Atlantic. Sarsia. 484-489.
  • Show author(s) (2004). Incubation behaviour in male Northern Lapwings Vanellus vanellus in relation to mating opportunities and female body condition. Ardea. 19-30.
  • Show author(s) (2004). Incubation behaviour in Northern Lapwings: Nocturnal nest attentiveness and possible importance of individual breeding quality. Ethology. 177-192.
  • Show author(s) (2004). Incubation Behaviour in Northern Lapwings: Nocturnal Nest Attentiveness and Possible Importance of Individual Breeding Quality. Ethology. 177-192.
  • Show author(s) (2003). Predicting polygynous settlement while incorporating varying female competitive strength. Behavioral Ecology. 257-267.
  • Show author(s) (2003). Predicting polygynous settlement while incorporating varying female competitive strength. Behavioral Ecology. 257-267.
  • Show author(s) (2003). Predicting polygonous settlement while incorporating varying female competitive strength. Behavioral Ecology. 257-267.
  • Show author(s) (2003). Is clutch size limited by incubation ability in Northern Lapwings? Journal of Animal Ecology. 784-792.
  • Show author(s) (2003). Første funn av småtannvassild Glossanodon leioglossus (Valenciennes, 1848) i nord-europeiske farvann. Fauna. 76-77.
  • Show author(s) (2003). Bestandsutvikling hos vipe, storspove og tjeld på Jæren, 1997-2002. Falco. 15-21.
  • Show author(s) (2003). (The sailray Dipturus linteus as a regular species in the southwesternmost Barents Sea.). Fauna Norvegica. 72-75.
  • Show author(s) (2002). Spisshalekutling Leseurigobius friesii funnet i Rogaland. Fauna. 105-107.
  • Show author(s) (2002). Grønlandshavkrøkle Nansenia groenlandica (Reinhardt, 1840) funnet i det sørlige Barentshav. Fauna. 57-59.
  • Show author(s) (2002). 'Magic carpet' flight in shorebirds attacked by raptors on a migrational stopover site. Ardea. 167-171.
  • Show author(s) (2001). Simultaneous tetragyny in Northern Lapwing Vanellus vanellus. Bird Study. 124-125.
  • Show author(s) (2001). Simultaneous tetragyny in Northern Lapwing Vanellus vanellus. Bird Study. 124-125.
  • Show author(s) (2001). Mate replacement and male brood adoption in lapwing Vanellus vanellus. The Wader Study Group Bulletin. 55-58.
  • Show author(s) (2001). Mate replacement and male brood adoption in Lapwings Vanellus vanellus. The Wader Study Group Bulletin. 55-58.
  • Show author(s) (2001). Funn av istorsk Arctogadus glacialis (Peters, 1874) øst for Svalbard. Fauna. 38-41.
  • Show author(s) (2000). Winter habitat of white-billed and great northern divers on the coast of Norway. Ornis Norvegica. 1-5.
  • Show author(s) (2000). Winter habitat of white-billed and great northern divers on the coast of Norway. Ornis Norvegica. 1-5.
  • Show author(s) (2000). The role of velvet scoters Melanitta fusca for pursuit-diving seabirds in winter. Ornis Norvegica. 6-10.
  • Show author(s) (2000). The role of velvet scoters Melanitta fusca for pursuit-diving seabirds in winter. Ornis Norvegica. 6-10.
  • Show author(s) (2000). Simultaneous tetragyny in northern lapwing, Vanellus vanellus. Bird Study. 00.
  • Show author(s) (2000). Chick punishment and chick adoption in Northern Lapwings. Ornis Fennica. 89-92.
  • Show author(s) (2000). Chick punishment and chick adoption in Northen Lapwings. Ornis Fennica. 89-92.
  • Show author(s) (2000). Chick punishment and chick adoption in Northen Lapwings. Ornis Fennica. 89-92.
  • Show author(s) (1999). Northern lapwing Vanellus vanellus copulating with a grass turf. Ornis Norvegica. 60-62.
  • Show author(s) (1999). Northern Lapwing Vanellus vanellus copulating with a grass turf. Ornis Norvegica. 60-62.
  • Show author(s) (1997). Mating systems and territory in Lapwings Vanellus vanellus. IBIS. 129-137.
  • Show author(s) (1997). Mating system and territory in Lapwings Vanellus vanellus. IBIS. 129-137.
  • Show author(s) (1997). Identifying inter-dive intervals in time-activity budget studies of diving ducks. Wildlife Biology. 45-51.
  • Show author(s) (1997). Feeding associations between red-necked grebes Podiceps griseigena and velvet scoters Melanitta fusca in winter. IBIS. 45-50.
  • Show author(s) (1996). Factors related to aggressive nest protection behaviour: a comparative study of Holarctic waders. Biological Journal of the Linnean Society. 409-439.
  • Show author(s) (1996). Factors related to aggressive nest protection behaviour : a comparative study of Holarctic waders. ?. 409-439.
  • Show author(s) (1994). Terrestrial habitat use by frogs and toads, Rana temporaria L: and Bufo bufo (L.), in West Norway. Fauna Norvegica, Serie A. 25-28.
  • Show author(s) (1994). Terrestrial habitat use by frogs and toads, Rana temporaria L. and Bufo bufo (L.), in West Norway. Fauna Norvegica, Serie B. 25-28.
  • Show author(s) (1994). Radiocesium (137Cs) from the Chernobyl reactor in Eurasian woodcock and earthworms. Journal of Wildlife Management. 141-147.
  • Show author(s) (1994). Radiocesium (%1%3%7Cs) from the Chernobyl Reactor in Eurasian Woodcock and Earthworms in Norway. Journal of Wildlife Management. 141.
  • Show author(s) (1991). The role of drive conflicts as a mechanism for nest-protection behaviour in the shorebird Pluvialis dominica. Ethology. 149-159.
  • Show author(s) (1990). Sond flight of the pintail snipe Gallonago stenura on the breeding grounds. Ornis Scandinavica. 239-247.
  • Show author(s) (1989). Time constraints and vigilance: breeding season diet of the dotterel (Charadrius morinellus). Journal of Ornithology = Journal fur Ornithologie. 293-302.
  • Show author(s) (1989). Sexual and antagonistic behaviour of bar-tailed godwits on the breeding grounds. Ornis Scandinavica. 169-175.
  • Show author(s) (1989). Resource partitioning among seven carbid species on Hardangervidda, southern Norway. Annales Zoologici Fennici. 113-120.
  • Show author(s) (1989). Nest habitat and nesting success of lesser golden-plovers. Wilson bulletin. 93-96.
  • Show author(s) (1989). Nest defense behavior of lesser golden-plovers. Wilson bulletin. 579-590.
  • Show author(s) (1989). Habitat use and resource overlap by breeding golden plovers and dotterels (Pluvialis apricaria, Charadrius morinellus). Journal of Ornithology = Journal fur Ornithologie. 197-206.
  • Show author(s) (1988). Song and mating behaviour of the spotted redshank Tringa erythropus. Fauna Norvegica, Serie C, Cinclus. 51-56.
  • Show author(s) (1987). Short-billed dowitchers associate closely with lesser golden-plovers. Wilson bulletin. 494-495.
  • Show author(s) (1987). Antipredator behavior and breeding success in greater golden-plover and Eurasian dotterel. The Condor. 40-47.
  • Show author(s) (1986). Summer food of a mountain population of common gull Larus canus. Fauna Norvegica, Serie C, Cinclus. 17-24.
  • Show author(s) (1986). Sex and age biased mobility in hawk owls Surnia ulula. Ornis Scandinavica. 306-308.
  • Show author(s) (1985). Vinterhekkende kattugler i Bergen. Vår Fuglefauna. 39-40.
  • Show author(s) (1985). Time-activity budget for breeding greater golden-plovers in Norwegian mountains. Wilson bulletin. 486-501.
  • Show author(s) (1985). Time budget and parental labour division in breeding black-tailed godwits Limosa l. limosa. Fauna Norvegica, Serie C, Cinclus. 24-34.
  • Show author(s) (1985). Seasonal variation in egg size in golden ploevr Pluvialis apricaria and dotterel Charadrius morinellus populations. Ornis Scandinavica. 108-112.
  • Show author(s) (1984). Line transects of waders in an alpine area: a methodological study. Annales Zoologici Fennici. 399-402.
  • Show author(s) (1984). Høst- og vinterbestanden av vannfugl på Jæren 1983/84 og noen oppsummeringer for perioden 1979/80-83/84. Falco. 159-173.
  • Show author(s) (1984). Breeding chronology and mating system of the Eurasian dotterel (Charadrius morinellus). The AUK: A Quarterly Journal of Ornithology. 834-847.
  • Show author(s) (1983). Plover's Page turns into Plover's Parasite: a look at the dunlin/golden plover association. Ornis Fennica. 10-15.
  • Show author(s) (1983). Høst- og vinterbestanden av vannfugl på Jæren. Falco. 193-201.
  • Show author(s) (1983). Første norske funn av kittlitzlo Charadrius pecuarius TEMM. Stavanger Museums årbok. 37-44.
  • Show author(s) (1982). Trends in the numbers of migrating shorebirds at Revtangen Bird Observatory, SW Norway, in the 21-year period 1947-67. Fauna Norvegica, Serie C, Cinclus. 53-58.
  • Show author(s) (1982). Oljeskadet sjøfugl langs kysten av Rogaland og Vest-Agder i januar-mars 1982. Vår Fuglefauna. 96-99.
  • Show author(s) (1982). Høst- og vinterbestanden av vannfugl i januar-mars 1982. Falco. 165-173.
  • Show author(s) (1981). Vadefuglenes hekkestatus i Norge med Svalbard. Proc. Second Nordic Congr. Ornithology 1979. 57-74.
  • Show author(s) (1981). Høst- og vinterbestanden av vannfugl på Jæren 1980/81. Falco. 116-126.
  • Show author(s) (1980). Summer food of the golden plover Pluvialis apricaria at Hardangervidda, South Norway. Holarctic Ecology. 40-49.
  • Show author(s) (1980). Size, sex ratio, and age composition of the urban winter population of mallards Anas platyrhynchos in Bergen, western Norway. Fauna Norvegica, Serie C, Cinclus. 65-69.
  • Show author(s) (1980). Sesongmessige svingninger i forekomstene av rovfugl på Jæren. Vår Fuglefauna. 97-101.
  • Show author(s) (1980). Nest predation in relation to snow-cover - a possible factor influencing the start of breeding in shorebirds. Ornis Scandinavica. 249-252.
  • Show author(s) (1980). Munkens og jernspurvens opptreden på Jæren vinterstid. Fauna. 77-78.
  • Show author(s) (1980). Høsttrekkets forløp hos endel vadere på Jæren. Fauna Norvegica, Serie C, Cinclus. 60-64.
  • Show author(s) (1980). Høst- og vinterbestanden av vannfugl på Jæren 1979/80. Falco. 136-149.
  • Show author(s) (1980). Bestanden av ender, svaner og sothøns på Jæren gjennom vinterhalvåret i tiårs-perioden 1965/66-1974/75. Fauna Norvegica, Serie C, Cinclus. 36-48.
  • Show author(s) (1978). Variation and secondary intergradation in SW-Norwegian golden plover Pluvialis apricaria populations. Ornis Scandinavica. 101-110.
  • Show author(s) (1978). Autumn diet of golden plovers Pluvialis apricaria on farmland and a coastal heather moor in South Norway. Fauna Norvegica, Serie C, Cinclus. 22-28.
  • Show author(s) (1978). Altitudinal differences in breeding schedules of golden plovers Pluvialis apricaria (L.) in South Norway. Sterna. 1-20.
  • Show author(s) (1977). Tetthet av hekkende fugler i lyngheibiotop på Høg-Jæren. Sterna. 211-216.
  • Show author(s) (1976). Population size and reproduction of the reindeer (Rangifer tarandus platyrhynchus) on Nordenskiöld Land, Svalbard. Årbok / Norsk polarinstitutt. 139-152.
  • Show author(s) (1976). Counts of sea-birds between Norway and Spitsbergen in the summer 1973. Årbok / Norsk polarinstitutt. 256-269.
  • Show author(s) (1975). Svalbardrypas føde i august. Sterna. 87-90.
  • Show author(s) (1975). Smågnagerbein som kalsiumkilde ved eggproduksjon hos heilo. Sterna. 197-198.
  • Show author(s) (1974). Heiloen, Pluvialis apricaria, som hekkefugl i Rogaland. Sterna. 1-14.
  • Show author(s) (1973). Draktskifte hos hettemåke (Larus ridibundus) i Bergen våren 1971. Krompen. 7-11.
  • Show author(s) (1971). Islom på Jæren i juli-august. Sterna. 148-148.
Popular scientific lecture
  • Show author(s) (2020). Med nebb som en nymåne - Numenius-spovene og deres levesett.
  • Show author(s) (2017). Vipa - Jærens "nasjonalfugl".
  • Show author(s) (2016). Fuglefaunaen langs Jærstrendene.
  • Show author(s) (2010). Vipa - bestandsforhold og trusselbilde.
  • Show author(s) (2010). Har vipa en framtid på Jæren?
Academic lecture
  • Show author(s) (2023). Annual schedules of dunlins Calidris alpina from two widely separated Norwegian breeding populations.
  • Show author(s) (2018). Marine fishes of the arctic region.
  • Show author(s) (2011). Investigations of a unique fauna from hydrothermal vents along the Arctic Mid-Ocean Ridge (AMOR).
  • Show author(s) (2002). Optimal clutch size in Northern Lapwings: an experiment.
  • Show author(s) (2002). Optimal clutch size in Northern Lapwings: an experiment.
Compendium
  • Show author(s) (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.
  • Show author(s) (1998). BZM 241 - Norges terrestre vertebrater.
Popular scientific article
  • Show author(s) (2018). Sint gluttsnipe, saltkjertler og sky byttedyr. Falco. 30-32.
  • Show author(s) (2018). Hønsehauk og kjerringråd. Falco. 26-37.
  • Show author(s) (2016). Idyll og konflikt i vipenes familieliv. Naturen. 131-139.
  • Show author(s) (2013). Berlevågfisken - en nord-norsk torskefisk med aner i Stillehavet. Norsk Sjømat. 36-38.
  • Show author(s) (2008). Species composition and abundance patterns of grenadiers on the Mid-Atlantic Ridge between Iceland and the Azores. American Fisheries Society, Symposium. 65-80.
  • Show author(s) (2005). Dyrelivet i et undersjøisk alpelandskap - om MAR-ECO-toktet til Atlanterhavsryggen i 2004. Årbok for Universitetsmuseet i Bergen. 4-20.
  • Show author(s) (2003). Hvitskate Dipturus linteus i Nord-Norge og det sørvestlige Barentshav. Fauna. 72-75.
  • Show author(s) (2002). Vipenes atferd og levesett i hekketiden. Vår Fuglefauna. 52-58.
  • Show author(s) (2002). Vipenes atferd og levesett i hekketiden. Vår Fuglefauna. 54-60.
  • Show author(s) (2002). Vipenes atferd og levesett i hekketida. Vår Fuglefauna. 54-60.
  • Show author(s) (2001). En svart/hvit nettålebrosme fra Barentshavet. Fauna. 140-141.
  • Show author(s) (1987). Rugda på Vestlandet som forskningsobjekt. Fuglehunden. 22-23.
  • Show author(s) (1985). Dyrelivet på Europas største høyfjellsvidde. Norges nasjonalparker - Hardangervidda. 66-96.
  • Show author(s) (1981). Forekomsten av gjess på Jæren - vinterbestand i perioden 1963/64-79/80 og variasjoner gjennom året. Stavanger Museums årbok.
  • Show author(s) (1979). Variert natur - variert fauna. By og Bygd. 92-117.
Documentary
  • Show author(s) (2010). One hundred years since the Michael Sars Expedition.
  • Show author(s) (2010). Hundre år siden Michael Sars-ekspedisjonen.
Academic chapter/article/Conference paper
  • Show author(s) (2012). Arctic-alpine mountain birds in northern Europe: contrasts between specialists and generalists. 16 pages.
  • Show author(s) (2010). Biodiversity patterns and processes on the Mid-Atlantic ridge. 19 pages.
  • Show author(s) (2006). Tundralo Pluvialis squatarola. 2 pages.
  • Show author(s) (2006). Lappspove Limosa lapponica. 2 pages.
  • Show author(s) (2006). Kvartbekkasin Lymnocryptes minimus. 2 pages.
  • Show author(s) (2006). Heilo Pluvialis apricaria. 2 pages.
  • Show author(s) (2006). Enkeltbekkasin Gallinago gallinago. 2 pages.
  • Show author(s) (1998). Chapter 5. The phylogeny of the Tundra Plovers. 13 pages.
  • Show author(s) (1997). Tundra, mires and moorland. 27 pages.
  • Show author(s) (1991). Vadere, måker og alker. 4 pages.
  • Show author(s) (1991). Vadefugler. 66 pages.
Encyclopedia article
  • Show author(s) (2010). Fisk "Pisces". 403-412. In:
    • Show author(s) (2010). Norsk rødliste for arter 2010. The 2010 Norwegian Red List for Species. Artsdatabanken.
Abstract
  • Show author(s) (2019). DNA barcoding marine fauna with NorBOL — current status. Genome. 449.
Briefs
  • Show author(s) (2017). Snøugler og satelittsendere. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1945.
  • Show author(s) (2017). Omfanget av fjorårets haukugleinvasjon. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1864.
  • Show author(s) (2017). Meisers evne til å skille mellom predatorer. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1946.
  • Show author(s) (2017). Langdistansetrekkere og værforhold. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1885.
  • Show author(s) (2017). Furukorsnebbens familieliv. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1886.
  • Show author(s) (2016). Nattaktive vandrefalker. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1788 .
  • Show author(s) (2016). Lavskriker og smågnagere. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1731 .
  • Show author(s) (2016). Kjønnsbestemming av lappugle. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1696.
  • Show author(s) (2016). Hvorfor blir noen skjærer gule? http://www.birdlife.no/fuglekunnskap/nyheter/?id=1599.
  • Show author(s) (2016). Føde, vekst og overlevelse hos alkeunger i Øst-Finnmark. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1601.
  • Show author(s) (2016). Endringer i fuglefaunaen på myr og tilgrensende skog. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1701.
  • Show author(s) (2016). Bestandsøkning av hekkende sangsvane. http://www.birdlife.no/fuglekunnskap/nyheter/?id=1734 .
Chapter
  • Show author(s) (2015). Fisker (Myxini, Petromyzontiformes, Chondrichthyes og Osteichthyes). Norsk rødliste for arter 2015. . In:
    • Show author(s) (2015). Norsk rødliste for arter 2015. Versjon 1.2.

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