Phylogenetics, history of evolution, biodiversity

Popular scientific article

• Willassen, Endre (2024). Zoologi og naturfilosofi i et nytt århundre. (external link)
• Willassen, Endre (2022). Mange fluer i én smekk. - DNA-metastrekkoding identifiserer mange organismer samtidig.. (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Willassen, Endre (2020). Evertebrater på grunne hardbunnslokaliteter. (external link)
• Willassen, Endre (2020). En viss forvirring av ideer - for hva er egentlig en art?. (external link)
• Willassen, Endre; Meland, Kenneth (2018). Stedet man ikke må si navnet på. (external link)
• Holte, Børge; Willassen, Endre (2016). Havbunnens skjulte skatter. Ti år med Mareano - ny kunnskap om artsmangfold og biotoper. (external link)
• Willassen, Endre (2016). Fugl, fisk eller midt i mellom?. (external link)
• Jordal, Bjarte Henry; Willassen, Endre; Hufthammer, Anne Karin et al. (2015). Klimaendringer – spor i museets samlinger. (external link)
• Lindblom, Louise Maria; Meland, Kenneth; Thorkildsen, Solveig et al. (2014). DNA-Lab: «Fortidens framtid». (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Willassen, Endre (2014). Hvordan utforske artsmangfoldet i havet?. (external link)
• Willassen, Endre (2011). Nansens "makkverk". (external link)
• Willassen, Endre (2010). Ny rolle for naturhistoriske museer?. (external link)
• Willassen, Endre (2009). Tror du på Darwin? Ei julefortelling. (external link)
• Willassen, Endre (2008). Dyr eller menneske - beinharde bevis. (external link)
• Willassen, Endre (2006). Kan verdens kuleste laboratorium løse Noas problem?. (external link)
• Byrkjedal, Ingvar; Willassen, Endre (2005). Dyrelivet i et undersjøisk alpelandskap - om MAR-ECO-toktet til Atlanterhavsryggen i 2004. (external link)
• Willassen, Endre (1987). Elveperlemusling. (external link)
• Willassen, Endre (1987). Børstehaler. (external link)
• Willassen, Endre (1986). Verdens lengste hoppekreps. (external link)
• Willassen, Endre (1986). Sjelden blekksprut langs norskekysten. (external link)
• Willassen, Endre (1985). "Snømygg". (external link)
• Willassen, Endre (1984). Ensomme mygg. (external link)

Academic article

• Nymoen, August Rustad; Kongsrud, Jon Anders; Willassen, Endre et al. (2024). When standard DNA barcodes do not work for species identification: intermixed mitochondrial haplotypes in the Jaera albifrons complex (Crustacea: Isopoda). (external link)
• Roth, Steffen; Siva-Jothy, Michael T.; Balvín, Ondřej et al. (2023). The evolution of female-biased genital diversity in bedbugs (Cimicidae). (external link)
• Hektoen, Martin Mejdell; Willassen, Endre; Budaeva, Nataliya (2022). Phylogeny and Cryptic Diversity of Diopatra (Onuphidae, Annelida) in the East Atlantic. (external link)
• Willassen, Endre; Westgaard, Jon-Ivar; Kongsrud, Jon Anders et al. (2022). Benthic invertebrates in Svalbard fjords—when metabarcoding does not outperform traditional biodiversity assessment. (external link)
• Mortimer, Kate; Kongsrud, Jon Anders; Willassen, Endre (2021). Integrative taxonomy of West African Magelona (Annelida: Magelonidae): species with thoracic pigmentation. (external link)
• Juul, Jens Anibal; Forsaa, Vegard Asgeir; Utheim, Tor Paaske et al. (2020). Scanning electron microscopy observations of Loa loa (Nematoda). (external link)
• Oskars, Trond Roger; Too, Chin Chin; Rees, David John et al. (2019). A molecular phylogeny of the gastropod family Haminoeidae sensu lato (Heterobranchia: Cephalaspidea): a generic revision. (external link)
• Roth, Steffen; Balvín, Ondřej; Siva-Jothy, Michael T. et al. (2019). Bedbugs (Cimicidae) evolved before their bat hosts and did not co-speciate with ancient humans. (external link)
• Mikkelsen, Nina Therese; Todt, Christiane; Kocot, Kevin M. et al. (2018). Molecular phylogeny of Caudofoveata (Mollusca) challenges traditional views. (external link)
• Lörz, Anne-Nina; Tandberg, Anne Helene S.; Willassen, Endre et al. (2018). Rhachotropis (Eusiroidea, Amphipoda) from the North East Atlantic. (external link)
• Jurado-Rivera, José A.; Pons, Joan; Alvarez, Fernando et al. (2017). Phylogenetic evidence that both ancient vicariance and dispersal have contributed to the biogeographic patterns of anchialine cave shrimps. (external link)
• Malaquias, Manuel Antonio E.; Ohnheiser, Lena Tina; Oskars, Trond Roger et al. (2016). Diversity and systematics of philinid snails (Gastropoda: Cephalaspidea) in West Africa with remarks on the biogeography of the region. (external link)
• Plotkin, Alexander; Voigt, Oliver; Willassen, Endre et al. (2016). Molecular phylogenies challenge the classification of Polymastiidae (Porifera, Demospongiae) based on morphology. (external link)
• Willassen, Endre; Williams, Akanbi Bamikole; Oskars, Trond Roger (2016). New observations of the enigmatic West African Cellana limpet (Mollusca: Gastropoda: Nacellidae). (external link)
• Budaeva, Nataliya; Schepetov, Dmitry; Zanol, Joana et al. (2016). When molecules support morphology: Phylogenetic reconstruction of the family Onuphidae (Eunicida, Annelida) based on 16S rDNA and 18S rDNA. (external link)
• Poulsen, Jan Yde; Byrkjedal, Ingvar; Willassen, Endre et al. (2013). Mitogenomic sequences and evidence from unique gene rearrangements corroborate evolutionary relationships of Myctophiformes (Neoteleostei). (external link)
• Keuning, Rozemarijn; Schander, Christoffer; Kongsrud, Jon Anders et al. (2011). Ecology of twelve species of Thyasiridae (Mollusca: Bivalvia). (external link)
• Velle, Gaute; Brodersen, Klaus P.; Birks, Harry John Betteley et al. (2010). Midges as quantitative temperature indicator species: Lessons for palaeoecology. (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2010). Phylogenetic utility of five genes for dipteran phylogeny: A test case in the Chironomidae leads to generic synonymies. (external link)
• Paillard, Christine; Korsnes, Kjetil; Le Chevalier, Patrick et al. (2008). Vibrio tapetis-like strain isolated from introduced Manila clams Ruditapes philippinarum showing symptoms of brown ring disease in Norway. (external link)
• Paillard, Christine; Korsnes, Kjetil; Le Chevalier, Patrick et al. (2008). Vibrio tapetis-like strain isolated from introduced Manila clams Ruditapes philippinarum showing symptoms of brown ring disease in Norway. (external link)
• Byrkjedal, Ingvar; Rees, David J.; Willassen, Endre (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)
• Mikkelsen, Nina Therese; Schander, Christoffer; Willassen, Endre (2007). Local scale DNA barcoding of bivalves (Mollusca): a case study. (external link)
• Meland, Kenneth; Willassen, Endre (2007). The disunity of “Mysidacea” (Crustacea). (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2007). A comprehensive DNA sequence library is essential for identification with DNA barcodes. (external link)
• Schander, Christoffer; Willassen, Endre (2005). What can biological barcoding do for marine biology?. (external link)
• Willassen, Endre (2005). New species of Diamesa (Diptera: Chironomidae) from Tibet: conspecific males and females associated with mitochondrial DNA. (external link)
• Willassen, Endre; Hanssen, Oddvar; Koksvik, Jan Ivar (2005). Diamesa parancysta Serra-Tosio: an East-Palearctic midge new to Europe (Diptera: Chironomidae: Diamesinae). (external link)
• Meland, Kenneth; Willassen, Endre (2004). Molecular phylogeny and biogeography of the genus Pseudomma (Peracarida: Mysidacea). (external link)
• Ekrem, Torbjørn; Willassen, Endre (2004). Exploring Tanytarsini relationships (Diptera: Chironomidae) using mitochondrial COII gene sequences. (external link)
• Ekrem, Torbjørn; Willassen, Endre (2004). Exploring Tanytarsini relationships (Diptera: Chironomidae) using mitochondrial COII gene sequences. (external link)
• Willassen, Endre (1999). "Take 25mg of insect.." - simmering signals of phylogeny from chironomid mitochondria. (external link)
• Thunes, Karl H.; Willassen, Endre (1997). Species composition of beetles (Coleoptera) in the bracket fungi Piptoporus betulinus and Fomes fomentarius (Aphyllophorales: Polyporacea): an explorative approach with canonical correspondence analysis. (external link)
• Johanson, Kjell Arne; Willassen, Endre (1997). Are the African species of Helicopsyche von Siebold 1856 (Insecta Trichoptera Helicopsychidae) monophyletic?. (external link)
• Thunes, Karl Hilding; Willassen, Endre (1997). Species composition of beetles (Coleoptera) in the bracket fungi Piptoporus betulinus and Fomes fomentarius (Aphyllophorales : Polyporaceae): an explorative analysis with canonical correspondence analysis. (external link)
• Willassen, Endre (1996). A nival Bryophaenocladius THIENEMANN, 1934, with reduced wings (Insecta: Diptera: Chironomidae). (external link)
• Willassen, Endre; Thunes, Karl H. (1996). Bracket fungi (Polyporacea): an alternative habitat for soil chironomids (Diptera: Chironomidae). (external link)
• Schnell, Øyvind A.; Willassen, Endre (1996). The chironomid (Diptera) communities in two sediment cores from Store Hovvatn, S.Norway, an acidified lake. (external link)
• Makarchenko, Eugenyi; Wang, Xinhua; Willassen, Endre (1996). A new species of Boreoheptagyia Brundin (Diptera, Chironomidae) from Tibet (China). (external link)
• Willassen, Endre; Thunes, Karl Hilding (1996). Bracket fungi (Polyporaceae): an alternative habitat for soil chironomids (Diptera: Chironomidae). (external link)
• Alm, Torbjørn; Willassen, Endre (1993). Late Weichselian Chironomidae (Diptera) Stratigraphy of Lake Nedre Æråsvatn, Andøya, Northern Norway. (external link)
• Willassen, Endre; Bjørklund, Annie (1989). Emergence of Chrionomidae (Diptera) and other insects from limnocorrals with different fish densities. Preliminary results from an experimental manipulation. (external link)
• Willassen, Endre (1988). A New Oriental Species of Diamesa Meigen (Diptera, Chironomidae). (external link)
• Willassen, Endre; Serra-Tosio, B (1988). Description de trois femelles de Diamesa Meigen dont D.cinerella Meigen (lectotype et paralectotype) (Diptera, Chironomidae). (external link)
• Willassen, Endre (1987). The Identity of Syndiamesa alpina Goetghebuer, 1941 (Diptera, Chironomidae). (external link)
• Sæther, Ole A.; Willassen, Endre (1987). Four new species of Diamesa Meigen, 1835 (Diptera, Chironomidae) from the glaciers of Nepal. (external link)
• Willassen, Endre (1986). Haliphron atlanticus Steenstrup (Cephalopoda, Octopoda) from the Coast of Norway. (external link)
• Willassen, Endre; Cranston, P.S. (1986). Zoological Journal of the Linnean Society. (external link)
• Willassen, Endre (1985). A review of Diamesa davisi Edwards and the davisi group (Diptera,Chironomidae). (external link)
• Sæther, Ole A.; Willassen, Endre (1985). The first record of Protanypus pseudomorio Makarchenko (Diptera, Chironomidae) from the Nearctic, with a description of the female and a revised key to males of the genus. (external link)
• Sæther, Ole A.; Sublette, J.E.; Willassen, Endre (1984). Chironomidae (Diptera) from the 2nd Fram Expedition (1898-1902) to Arctic North-America described by Kieffer,J.J. (external link)
• Willassen, Endre (1983). Notes on the Chironomid (Diptera, Chironomidae) ocelli. (external link)
• Halvorsen, Godtfred Anker; Willassen, Endre; Sæther, Ole A. (1982). Chironomidae (Dipt.) from Ekse, Western Norway. (external link)
• Säwedal, Lars; Willassen, Endre (1980). Redescription of Micropsectra borealis (Kieffer, 1922) n.comb. (Diptera, Chironomidae). (external link)

Popular scientific chapter/article

• Kongshavn, Katrine; Bakken, Torkild; Kongsrud, Jon Anders et al. (2023). En oppsummering av Hardbunnsfauna-prosjektet (2019-2022). (external link)
• Willassen, Endre; Tandberg, Anne Helene Solberg (2020). Appelløfs blekksprut. (external link)

Poster

• Mortimer-Jones, Kate; Kongsrud, Jon Anders; Willassen, Endre (2023). Integrative taxonomy of West African Magelona (Annelida, Magelonidae). (external link)
• Tandberg, Anne Helene S.; Hosia, Aino Laila Johanna; Straube, Nicolas et al. (2020). Two centuries of marine biodiversity collections and research. (external link)
• Mortimer, Kate; Kongsrud, Jon Anders; Willassen, Endre (2019). The Magelonidae of West Africa. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2019). Five years as national research infrastructure: status of the Norwegian Barcode of Life Network (NorBOL). (external link)
• Weigand, Hannah; Beermann, Arne J.; Čiampor, Fedor et al. (2019). A barcode gap analysis for aquatic biomonitoring in Europe. (external link)
• Tandberg, Anne Helene S.; Stokkan, Morten; Willassen, Endre (2018). A new species of whale louse (Crustacea: Amphipoda: Cyamidae) found on Cuvier´s beaked whale Ziphius cavirostris. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2017). Progress and prospects of the Norwegian Barcode of Life Network (NorBOL). (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2017). The Norwegian Barcode of Life Network (NorBOL). (external link)
• Willassen, Endre; Kongsrud, Jon Anders; Kongshavn, Katrine et al. (2017). Investigating the marine invertebrate fauna of the West African continental shelf with DNA barcodes. (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Alvestad, Tom et al. (2017). Barcoding of marine invertebrates from Norway through NorBOL. (external link)
• Allotey, Lloyd; Alvestad, Tom; Kongsrud, Jon Anders et al. (2017). Diversity and species distributions of Glyceriformia (Annelida, Polychaeta) in shelf areas off western Africa. (external link)
• Kongsrud, Jon Anders; Bakken, Torkild; Oug, Eivind et al. (2017). Assessing species diversity in marine bristle worms (Annelida, Polychaeta): integrating barcoding with traditional morphology-based taxonomy. (external link)
• Willassen, Endre; Kongshavn, Katrine (2017). Data con carne – kilder til ny kunnskap om biologisk mangfold. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2016). The Norwegian Barcode of Life Network (NorBOL). (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Malaquias, Manuel Antonio E. et al. (2016). Marin biodiversitetsforskning ved Universitetsmuseet i Bergen. (external link)
• Allotey, Lloyd; Williams, Akanbi Bamikole; Kongsrud, Jon Anders et al. (2016). Diversity and species distributions of Glyceriformia in shelf areas off western Africa. (external link)
• Stokkan, Morten; Kongsrud, Jon Anders; Willassen, Endre (2016). Phylogeny of the family Maldanidae based on molecular data. (external link)
• Budaeva, Nataliya; Willassen, Endre (2016). Nothria conchylega (Polychaeta: Onophidae), - a unique example a wide spread species of polychaetes in the northern hemisphaere. (external link)
• Falkenhaug, Tone; Hobæk, Anders; Willassen, Endre (2015). Inventory of marine Copepoda and Cladocera (Crustacea) in Norway: COPCLAD. (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Tandberg, Anne Helene S. et al. (2015). Integrating DNA-barcoding and morphology to study marine invertebrates. Exploring biodiversity and biogeography of deep-sea polychaetes in the Norwegian Sea.. (external link)
• Alme, Øydis; Willassen, Endre; Kongsrud, Jon Anders (2014). An Investigation of West African Brittle Star (Echinodermata: Ophiuroidea) Fauna. (external link)
• Budaeva, Nataliya; Ribeiro, Pedro; Willassen, Endre (2013). First insight into phylogeny of Hyalinoeciinae (Onuphidae) inferred from one mitochondrial and four nuclear markers. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2013). The Norwegian Barcode of Life. (external link)
• Willassen, Endre; Todt, Christiane (2013). ForBio – The Research School in Biosystematics. (external link)
• Willassen, Endre; Meland, Kenneth (2012). Anchialine atyid shrimps (Crustacea: Decapoda) from Zanzibar. (external link)
• Willassen, Endre (2011). Phylogeny of Diamesinae inferred from mtDNA sequences. (external link)
• Ekrem, Torbjørn; Stur, Elisabeth; Willassen, Endre et al. (2010). Towards a molecular phylogeny of the tribe Tanytarsini (Diptera: Chironomidae): new genera emerge while others disappear. (external link)
• Rees, David John; Byrkjedal, Ingvar; Willassen, Endre (2009). Dvelving deep with DNA barcodes: expanding data for MAR-ECO fishes. (external link)
• Larsen, Ole-Kristian; Willassen, Endre (2008). A phylogenetic analysis of Oplophoridae (Crustacea: Decapoda) based on molecular data. (external link)
• Byrkjedal, Ingvar; Willassen, Endre; Hanner, Robert (2007). Barcoding deep sea fishes from the northern mid Atlantic. (external link)
• Byrkjedal, Ingvar; Willassen, Endre; Hanner, Robert (2007). DNA barcoding northern mid Atlantic deep sea fishes. (external link)
• Keuning, Rozemarijn; Schander, Christoffer; Kongsrud, Jon Anders et al. (2007). Distribution and ecology of Thyasiridae (Mollusca: Bivalvia) in coastal waters of Hordaland, Norway. (external link)
• Keuning, Rozemarijn; Schander, Christoffer; Kongsrud, Jon Anders et al. (2007). Diversity and Ecology of Thyasiridae (Mollusca:Bivalvia) in coastal waters of Hordaland, Norway. (external link)
• Mikkelsen, Nina Therese; Willassen, Endre; Schander, Christoffer et al. (2007). Where is the Chaetodermomorpha (=Caudofoveata) in the tree of life?. (external link)
• Keuning, Rozemarijn; Schander, Christoffer; Kongsrud, Jon Anders et al. (2007). Distribution and Ecology of Thyasiridae (Mollusca: Bivalvia) in coastal waters of Hordaland Norway. (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2006). DNA barcoding of non-biting midges (Diptera: Chironomidae). (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2006). DNA barcoding of non-biting midges (Diptera: Chironomidae). (external link)
• Falkenhaug, Tone; Kaartvedt, Stein; Vereshchaka, A. et al. (2005). Macrozooplankton on the mid-Atlantic Ridge: Material derived from pelagic trawl catches during GOS 2004, Leg1. (external link)
• Ekrem, Torbjørn; Willassen, Endre (2004). Towards a phylogeny of Tanytarsini (Diptera: Chironomidae): evolutionary �hot spots� in mitochondrial COII and flanking regions. (external link)
• Ekrem, Torbjørn; Willassen, Endre (2004). Towards a phylogeny of Tanytarsini (Diptera: Chironomidae): evolutionary 'hot spots' in mitochondrial COII and flanking regions. (external link)

Report

• Dunshea, Glenn; Martell, Luis; Bakken, Torkild et al. (2021). Kunnskapsstatus for bruk av molekylære verktøy i kartlegging og overvåkning av biologisk mangfold i marine miljø. (external link)
• Finstad, Anders Gravbrøt; Boer, Hugo de; Brurberg, May Bente et al. (2020). Kriterier for lagring av miljø-DNA prøver og data, herunder henvisning til referansemateriale. Criteria for depositing eDNA samples and data, including vouchered specimens. (external link)
• Willassen, Endre; Achen, Henrik von; Lislevand, Terje et al. (2015). Verdensbilder(Nye naturhistoriske utstillinger ved Universitetsmuseet i Bergen). (external link)

Academic lecture

• Westgaard, Jon-Ivar; Willassen, Endre; Hanebrekke, Tanja Lexau et al. (2021). Miljø-DNA i svalbardske fjorder (E-DNA in MAREANO). (external link)
• Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind et al. (2019). Integrating DNA barcoding with traditional morphology-based taxonomy: assessment of species diversity in marine bristle worms (Annelida). (external link)
• Roth, Steffen; Reinhardt, Klaus; Willassen, Endre (2018). The evolution of specialisation and generalism in bedbugs (Cimicidae) . (external link)
• Willassen, Endre (2018). Developing a high quality DNA barcode reference library: Lessons from marine invertebrates. (external link)
• Willassen, Endre (2017). Junk-DNA or species markers? DNA-barcoding needs taxonomists.. (external link)
• Budaeva, Nataliya; Willassen, Endre (2017). Progenetic evolution in the deep-sea fauna. (external link)
• Bakken, Torkild; Kongsrud, Jon Anders; Kongshavn, Katrine et al. (2016). DNA barcoding contributing to new knowledge on diversity and distribution of Polychaeta (Annelida) in Norwegian and adjacent waters. (external link)
• Budaeva, Nataliya; Paxton, Hannelore; Ribeiro, Pedro et al. (2016). Giants vs pygmies: two strategies in the evolution of deep-sea quill worms (Onuphidae, Annelida).. (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Bakken, Torkild et al. (2016). Experiences after three years of automated DNA barcoding of Polychaeta. (external link)
• Hektoen, Martin M.; Budaeva, Nataliya; Willassen, Endre (2016). Diversity and phylogeny of Diopatra bristle worms (Onuphidae, Annelida) off the coast of West Africa.. (external link)
• Willassen, Endre (2016). When the barcode identification engine needs a bit of therapy. (external link)
• Willassen, Endre; Kongshavn, Katrine; Kongsrud, Jon Anders (2015). Hvor godt kjenner vi den marine faunaen?. (external link)
• Willassen, Endre; Kongshavn, Katrine; Kongsrud, Jon Anders (2015). What are we learning from DNA barcoding of marine invertebrates?. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2015). The Norwegian Barcode of Life Network (NorBOL). (external link)
• Willassen, Endre (2015). DNA barcoding - a quick look behind the bars. (external link)
• Meland, Kenneth; Willassen, Endre; Richter, Stefan (2014). Phylogeny of the Lophogastrida. (external link)
• Willassen, Endre; García-Isarch, Eva; SOTO DE MATOS-PITA, Susana (2014). DNA-barcoding Decapoda and Stomatopoda from West-Africa. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2014). The Norwegian Barcode of Life Network (NorBOL). (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Willassen, Endre (2014). Genetisk strekkoding av marine virvelløse dyr. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2014). Norwegian Barcode of Life. (external link)
• Mikkelsen, Nina Therese; Kocot, Kevin M.; Halanych, Kenneth M. et al. (2013). New Methods Provide Answers to Old Questions- Phylogenetics and Systematics of the Caudofoveata (=Chaetodermomorpha). (external link)
• Ekrem, Torbjørn; Stur, Elisabeth; Mäkinen, Tuuli et al. (2013). Capacity building in modern taxonomy as an instrument for knowledge transfer in IPBES. (external link)
• Erséus, Christer; Willassen, Endre (2012). DNA barcoding Norwegian earthworms. (external link)
• Ekrem, Torbjørn; Stur, Elisabeth; Willassen, Endre et al. (2010). Towards a molecular phylogeny of the tribe Tanytarsini (Diptera: Chironomidae): new genera emerge while others disappear. (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2009). Molecular phylogeny of Micropsectra and allies: evidence of new generic synonyms (Diptera: Chironomidae). (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2009). Molecular phylogeny of Micropsectra and allies: evidence of new generic synonyms (Diptera: Chironomidae). (external link)
• Mikkelsen, Nina Therese; Schander, Christoffer; Todt, Christiane et al. (2008). Where are the Caudofoveata (=Chaetodermomorpha) in the tree of life?. (external link)
• Willassen, Endre (2007). Specimen processing and museum collections. (external link)
• Willassen, Endre (2007). DNA-barcoding and taxonomy. (external link)
• Willassen, Endre (2007). Hvilket dyr er dette? Identifisering med DNA. (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2007). DNA Barcoding: a valuable tool in taxonomy and identification of non-biting midges. (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2006). DNA barcoding of Chironomidae: a useful tool for taxonomy and freshwater biomonitoring?. (external link)
• Ekrem, Torbjørn; Willassen, Endre; Stur, Elisabeth (2006). DNA barcoding of Chironomidae: A useful tool for taxonomy and freshwater biomonitoring?. (external link)
• Mikkelsen, Nina Therese; Willassen, Endre; Schander, Christoffer (2006). What can DNA barcoding do for Aplacophoran mollusks?. (external link)
• Falkenhaug, Tone; Hansen, Hege Øverbø; Willassen, Endre et al. (2006). Pelagic shrimps (Decapoda, Caridea) on the Mid-Atlantic Ridge. (external link)
• Falkenhaug, Tone; Hansen, Hege Øverbø; Willassen, Endre et al. (2006). Pelagic shrimps (Decapoda, Caridea) on the Mid-Atlantic Ridge. (external link)
• Willassen, Endre (2006). Identifying genes (- or species? -) in cyberspace. (external link)
• Willassen, Endre (2006). DNA barcoding in MAR-ECO. (external link)
• Ekrem, Torbjørn; Willassen, Endre (2005). DNA-barcoding of non-biting midges (Diptera:Chironomidae). (external link)
• Meland, Kenneth; Willassen, Endre (2005). Molecular and morphological phylogenetic analyses on the orders Lophogastrida and Mysidacea. (external link)
• Ekrem, Torbjørn; Willassen, Endre (2005). DNA-barcoding of non-biting midges (Diptera: Chironomidae). (external link)

Academic literature review

• Weigand, Hannah; Beermann, Arne J.; Čiampor, Fedor et al. (2019). DNA barcode reference libraries for the monitoring of aquatic biota in Europe: Gap-analysis and recommendations for future work. (external link)
• Velle, Gaute; Brooks, Stephen J.; Birks, Harry John Betteley et al. (2005). Chironomids as a tool for inferring Holocene climate: an assessment based on six sites in southern Scandinavia. (external link)

Abstract

• Willassen, Endre; Alvestad, Tom; Kongshavn, Katrine et al. (2019). DNA barcoding marine fauna with NorBOL — current status. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2019). Five years as national research infrastructure: status of the Norwegian Barcode of Life Network (NorBOL). (external link)
• Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind et al. (2019). DNA barcoding assessment of species diversity in marine bristle worms (Annelida), integrating barcoding with traditional morphology-based taxonomy. (external link)
• Kongshavn, Katrine; Alvestad, Tom; Kongsrud, Jon Anders et al. (2019). DNA barcodes of Nordic Echinodermata. (external link)
• Weigand, Hannah; Beermann, Arne J; Čiampor, Fedor et al. (2019). A barcode gap analysis for aquatic biomonitoring in Europe. (external link)
• Allotey, Lloyd; Alvestad, Tom; Kongsrud, Jon Anders et al. (2017). Diversity and species distributions of Glyceriformia (Annelida, Polychaeta) in shelf areas off western Africa. (external link)
• Kongsrud, Jon Anders; Bakken, Torkild; Oug, Eivind et al. (2017). Assessing species diversity in marine bristle worms (Annelida, Polychaeta): integrating barcoding with traditional morphology-based taxonomy. (external link)
• Willassen, Endre; Kongsrud, Jon Anders; Kongshavn, Katrine et al. (2017). Investigating the marine invertebrate fauna of the West African continental shelf with DNA barcodes . (external link)
• Alvestad, Tom; Kongshavn, Katrine; Kongsrud, Jon Anders et al. (2017). Building a comprehensive barcode reference library of the Norwegian Echinodermata through NorBOL: an ongoing effort. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2017). Progress and prospects of the Norwegian Barcode of Life Network (NorBOL). (external link)
• Kongshavn, Katrine; Kongsrud, Jon Anders; Alvestad, Tom et al. (2017). Barcoding of marine invertebrates from Norway through NorBOL. (external link)
• Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild et al. (2015). The Norwegian Barcode of Life Network (NorBOL). (external link)
• Aarø, Jørgen; Willassen, Endre; Malaquias, Manuel Antonio E. (2010). Complex evolution in the Neotropics: Understanding Caribbean marine biogeography using Bulla occidentalis as a model species. (external link)
• Heiri, Oliver; Ekrem, Torbjørn; Willassen, Endre (2004). Larval head capsules of European Micropsectra, Paratanytarsus and Tanytarsus. (external link)

Lecture

• Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind et al. (2019). DNA barcoding assessment of species diversity in marine bristle worms (Annelida), integrating barcoding with traditional morphology-based taxonomy. (external link)
• Endresen, Dag Terje Filip; Russell, Laura; Schigel, Dmitry et al. (2018). Data mobilization skills: training on mobilizing biodiversity data using GBIF and BOLD tools. (external link)
• Willassen, Endre (2018). Evolusjon, art og arv. (external link)
• Willassen, Endre (2016). Evolusjon. (external link)
• Willassen, Endre (2015). Biologisk artsmangfold og evolusjon. (external link)

Museum exhibition

• Tandberg, Anne Helene S.; Rapp, Hans Tore; Kjetland, Anders et al. (2019). Hvalsalen - Det store mylderet. (external link)
• Steffensen, Morten; Willassen, Endre; Byrkjedal, Ingvar (2004). Dyphavets hemmeligheter. (external link)

Popular scientific lecture

• Willassen, Endre (2018). Bli kjent med små ormer.. (external link)
• Willassen, Endre (2018). Das Ding an sich. Das Ding für mich. Das Ding für flått. Hvordan ser verden ut for dyr?. (external link)
• Willassen, Endre (2011). Nansen som zoolog. Nansens "makkverk". (external link)
• Willassen, Endre (2007). Hodeløs anatomi og psykogenetiske fantasier. (external link)

Interview

• Landsverk, Johanne; Willassen, Endre (2018). Kvar art sin kode. (external link)
• Willassen, Endre; Ferguson, Katherine (2011). Et lite sjødyr-mysterium. (external link)
• Oug, Eivind; Brattegard, Torleiv; Schander, Christoffer et al. (2008). G.O. Sars hadde likevel rett. (external link)
• Gjengedal, Kjerstin; Byrkjedal, Ingvar; Willassen, Endre et al. (2008). Ulike artar var mann og kone. (external link)
• Willassen, Endre; Schander, Christoffer; Ursin, Lars Holger (2007). Mangfold i fare. (external link)
• Willassen, Endre; Ursin, Lars Holger; Schander, Christoffer (2007). Diversity in danger. (external link)

Doctoral dissertation

• Mikkelsen, Nina Therese; Willassen, Endre; Todt, Christiane (2018). Phylogeny and systematics of Caudofoveata (Mollusca, Aplacophora). (external link)
• Mally, Richard; Jordal, Bjarte Henry; Willassen, Endre (2018). The phylogenetic system of Spilomelinae and Pyraustinae snout moths (Lepidoptera: Pyraloidea). (external link)
• Willassen, Endre (1982). Descriptions and redescriptions of female Diamesa Meigen, 1835 (Diptera: chironomidae) : with a comparative morphology, keys, phylogenetic and biogeographical notes. (external link)

Website (informational material)

• Willassen, Endre (2016). Hvem var Appellöf?. (external link)
• Willassen, Endre (2016). A tale of three fading buck-goats. (external link)
• Willassen, Endre (2016). Where the sun doesn’t shine. Lucifer, luciferin and luciferase. (external link)
• Willassen, Endre (2016). Lucia – with a ray of enlightenment?. (external link)
• Kongshavn, Katrine; Willassen, Endre (2015). Of MAREANO and the museum. (external link)
• Kongshavn, Katrine; Willassen, Endre (2015). The heart of the museum. (external link)
• Willassen, Endre (2015). Shrimp and salad. (external link)
• Willassen, Endre (2015). Time for rejuvenation. (external link)
• Willassen, Endre (2015). Verdens lengste dyr: Lineus longissimus. (external link)
• Willassen, Endre (2015). Biodiversitet og DNA-strekkoding. (external link)

Feature article

• Willassen, Endre (2014). Krøll med Krabbe Krølle. (external link)

Programme participation

• Willassen, Endre (2014). Småkryp på akvariet. (external link)

Documentary

• Willassen, Endre (2013). Minneord for Ole Anton Sæther. (external link)
• Willassen, Endre (2011). Nansens "makkverk". (external link)
• Willassen, Endre (2011). Coding morphology with Mesquite (video tutorial). (external link)
• Willassen, Endre (2011). Model testing (video tutorial). (external link)
• Willassen, Endre (2011). Introduction to PAUP* (video tutorial). (external link)
• Willassen, Endre (2011). Phylogenetic trees and characters (video tutorial). (external link)
• Willassen, Endre (2011). Maximum likelihood estimation with PAUP* (video tutorial). (external link)
• Willassen, Endre (2011). Nansens ”makkverk” - en taksonomisk og systematisk studie. (external link)
• Willassen, Endre; Byrkjedal, Ingvar (2010). One hundred years since the Michael Sars Expedition. (external link)
• Willassen, Endre; Byrkjedal, Ingvar (2010). Hundre år siden Michael Sars-ekspedisjonen. (external link)
• Willassen, Endre (2009). Hva var det med Darwins nese?. (external link)

Short communication

• Baranov, Viktor; Ivković, Marija; Willassen, Endre (2013). First record of Diamesa thomasi Serra-Tosio, 1970, from Croatia. (external link)
• Velle, Gaute; Brodersen, Klaus P.; Birks, Harry John Betteley et al. (2012). Inconsistent results should not be overlooked: A reply to Brooks et al. (2012). (external link)
• Willassen, Endre (2011). Pseudodiamesa nivosa or arctica? A confounded story of a midge moustache and an attempt at some taxonomic orthodontics. (external link)

Masters thesis

• Tverberg, Joar; Schander, Christoffer; Willassen, Endre (2009). Molecular phylogenetics of North-East Atlantic hydrothermal vent and wood fall associated Rissoidae (Mollusca; Gastropoda). (external link)
• Keuning, Rozemarijn; Schander, Christoffer; Willassen, Endre (2008). Diversity and Ecology of Thyasiridae (Mollusca: Bivalvia) in coastal waters of Hordaland, Norway. (external link)

Academic chapter/article/Conference paper

• Willassen, Endre (2007). Sasayusurika aenigmata Makarchenko (Diptera: Chironomidae: Diamesinae) – a Japanese endemic discovered in the Indian Himalaya. (external link)
• Endo, Kazuo; Makarchenko, Eugenyi A.; Willassen, Endre (2007). On the systematics of Linevitshia Makarchenko, 1987 (Diptera, Chironomidae, Diamesinae), with description of L. yezoensis sp.n. from Hokkaido, Japan. (external link)
• Willassen, Endre (1996). Ptychopteridae. Glansmygg. (external link)
• Willassen, Endre (1996). Thaumaleidae. Målermygg. (external link)

Internet exhibition

• Heiri, Oliver; Ekrem, Torbjørn; Willassen, Endre (2004). Larval head capsules of European Micropsectra, Paratanytarsus and Tanytarsus (Diptera: Chironomidae: Tanytarsini). (external link)

Thesis at a second degree level

• Thunes, Karl Hilding; Willassen, Endre; Solhøy, Torstein (1993). Polypore fungi and their associated arthropod communities in selected West Norwegian forests. The rationale and applications of numerical methods. (external link)

See a complete overview of publications in Cristin.

Marine Invertebrates of West Africa

NORBOL

COPCLAD

Marine tanglopper i Norge

Enchytridae i Norge