Blar i NTNU Open på forfatter "Ekrem, Torbjørn"
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Phylogenetic analysis of the genus Paratanytarsus (Diptera: Chironomidae)
Dahle, Sondre (Master thesis, 2012)The non-biting midges (Chironomidae) are among of the most successful insects in freshwater systems and often dominate in abundance and species richness. The genus Paratanytarsus contains species from all biogeographic ... -
Phylogenetic Evidence of Long Distance Dispersal and Transmission of Piscine Reovirus (PRV) between Farmed and Wild Atlantic Salmon
Garseth, Åse Helen; Ekrem, Torbjørn; Biering, Eirik (Journal article; Peer reviewed, 2013)The extent and effect of disease interaction and pathogen exchange between wild and farmed fish populations is an ongoing debate and an area of research that is difficult to explore. The objective of this study was to ... -
Phylogeny of the asexual lineage Murrayidae (Macrobiotoidea, Eutardigrada) with the description of Paramurrayon gen. nov. and Paramurrayon meieri sp. nov.
Guidetti, Roberto; Giovannini, Ilaria; Del Papa, Valeria; Ekrem, Torbjørn; Nelson, Diane R.; Rebecchi, Lorena; Cesari, Michele (Journal article, 2022)The peculiar family Murrayidae, comprising the genera Murrayon, Dactylobiotus and Macroversum, contains relatively rare species living in hydrophilic and freshwater habitats on all continents, and contains two of the six ... -
Species delimitation and phylogenetic relationships of the Prionospio complex (Annelida, Spionidae) in the Northeast Atlantic
Hektoen, Martin Mejdell; Bakken, Torkild; Ekrem, Torbjørn; Radashevsky, Vasily I.; Dunshea, Glenn John (Peer reviewed; Journal article, 2024)The Prionospio complex comprises the most diverse and complex group within the polychaete family Spionidae. The phylogenetic relationships within the group are still poorly understood, and the generic breakdown is unstable. ... -
Species delimitation in northern European water scavenger beetles of the genus Hydrobius (Coleoptera, Hydrophilidae)
Fossen, Erlend Ignacio; Ekrem, Torbjørn; Nilsson, Anders N.; Bergsten, Johannes (Journal article; Peer reviewed, 2016)The chiefly Holarctic Hydrobius species complex (Coleoptera, Hydrophilidae) currently consists of H. arcticus Kuwert, 1890, and three morphological variants of H. fuscipes (Linnaeus, 1758): var. fuscipes, var. rottenbergii ... -
Systematics and evolutionary history of Tanytarsus van der Wulp, 1874 (Diptera: Chironomidae)
Lin, Xiaolong (Doctoral theses at NTNU;2017:201, Doctoral thesis, 2017)On the evolution and diversity of Tanytarsus non-biting midges / Evolusjon og mangfold hos fjærmygg i slekten Tanytarsus As species are the fundamental unit of biodiversity, accurate species identification and delimitation ... -
Tardigrade diversity and community composition across Norwegian boreal forests
Guidetti, Roberto; Jönsson, K. Ingemar; Kaczmarek, Łukasz; Meier, Terje; Speed, James David Mervyn; Prestø, Tommy; Stur, Elisabeth; Topstad, Lasse; Cesari, Michele; Roszkowska, Milena; Zawierucha, Krzysztof; Hassel, Kristian; Ekrem, Torbjørn (Peer reviewed; Journal article, 2023)Tardigrades are common in many terrestrial environments and habitats. Although little is known on their ecological preferences, previous studies found diversity and community composition significantly affected by various ... -
Taxonomy based on science is necessary for global conservation
Thomson, Scott A.; Pyle, Richard L.; Ahyong, Shane T.; Alonso-Zarazaga, Miguel; Ammirati, Joe; Araya, Juan Francisco; Ascher, John S.; Audisio, Tracy Lynn; Azevedo-Santos, Valter M.; Bailly, Nicolas; Baker, William J.; Balke, Michael; Barclay, Maxwell V.L.; Barrett, Russell L.; Benine, Ricardo C.; Bickerstaff, James R.M.; Bouchard, Patrice; Bour, Roger; Bourgoin, Thierry; Boyko, Christopher B.; Breure, Abraham S.H.; Brothers, Denis J.; Byng, James W.; Campbell, David; Ceríaco, Luis M.P.; Cernák, István; Cerretti, Pierfilippo; Chang, Chih-Han; Cho, Soowon; Copus, Joshua M.; Costello, Mark J.; Cseh, Andras; Csuzdi, Csaba; Culham, Alastair; D’Elía, Guillermo; d'Udekem d'Acoz, Cédric; Daneliya, Mikhail E.; Dekker, René; Dickinson, Edward C.; Dickinson, Timothy A.; van Dijk, Peter Paul; Dijkstra, Klaas-Douwe B.; Dima, Bálint; Dmitriev, Dmitry A.; Duistermaat, Leni; Dumbacher, John P.; Eiserhardt, Wolf Lukas T.; Ekrem, Torbjørn; Evenhuis, Neal L.; Faille, Arnaud; Fernandez-Triana, Jose L.; Fiesler, Emile; Fishbein, Mark; Fordham, Barry G.; Freitas, André V.L.; Friol, Natalia R.; Fritz, Uwe; Frøslev, Tobias; Funk, Vicki A.; Gaimari, Stephen D.; Garbino, Guilherme Siniciato Terra; Garraffoni, André R.S.; Geml, József; Gill, Anthony C.; Gray, Alan; Grazziotin, Felipe G.; Greenslade, Penelope; Gutierrez, Eliecer E.; Harvey, Mark S.; Hazevoet, Cornelis J.; He, Kai; He, Xiaolan; Helfer, Stephan; Helgen, Kristofer M.; van Heteren, Anneke H.; Hita Garcia, Francisco; Holstein, Norbert; Horváth, Margit K.; Hovenkamp, Peter H.; Hwang, Wei Song; Hyvönen, Jaakko; Islam, Melissa B.; Iverson, John B.; Ivie, Michael A.; Jaafar, Zeehan; Jackson, Morgan D.; Jayat, J. Pablo; Johnson, Norman F.; Kaiser, Hinrich; Klitgård, Bente B.; Knapp, Daniel G.; Kojima, Jun-Ichi; Kõljalg, Urmas; Kontschán, Jenő; Krell, Frank-Thorsten; Krisai-Greilhuber, Irmgard; Kullander, Sven; Latella, Leonardo; Lattke, John E; Lencioni, Valeria; Lewis, Gwilym P.; Lhano, Marcos G.; Lujan, Nathan K.; Luksenburg, Jolanda A.; Mariaux, Jean; Marinho-Filho, Jader; Marshall, Christopher J.; Mate, Jason F.; McDonough, Molly M.; Michel, Ellinor; Miranda, Vitor F.O.; Mitroiu, Mircea-Dan; Molinari, Jesús; Monks, Scott; Moore, Abigail J.; Moratelli, Ricardo; Murányi, Dávid; Nakano, Takafumi; Nikolaeva, Svetlana; Noyes, John; Ohl, Michael; Oleas, Nora H.; Orrell, Thomas; Pall-Gergely, Barna; Pape, Thomas; Papp, Viktor; Parenti, Lynne R.; Patterson, David; Pavlinov, Igor Ya; Pine, Ronald H.; Poczai, Péter; Prado, Jefferson; Prathapan, Divakaran; Rabeler, Richard K.; Randall, John E.; Rheindt, Frank E.; Rhodin, Anders G.J.; Rodríguez, Sara M.; Rogers, D. Christopher; Roque, Fabio de Oliveira; Rowe, Kevin C.; Ruedas, Luis A.; Salazar-Bravo, Jorge; Salvador, Rodrigo B.; Sangster, George; Sarmiento, Carlos E.; Schigel, Dmitry S.; Schmidt, Stefan; Schueler, Frederick W.; Segers, Hendrik; Snow, Neil; Souza-Dias, Pedro G.B.; Stals, Riaan; Stenroos, Soili; Stone, R. Douglas; Sturm, Charles F.; Stys, Pavel; Teta, Pablo; Thomas, Daniel C.; Timm, Robert M.; Tindall, Brian J.; Todd, Jonathan A.; Triebel, Dagmar; Valdecasas, Antonio G.; Vizzini, Alfredo; Vorontsova, Maria S.; de Vos, Jurriaan M.; Wagner, Philipp; Watling, Les; Weakley, Alan; Welter-Schultes, Francisco; Whitmore, Daniel; Wilding, Nicholas; Will, Kipling; Williams, Jason; Wilson, Karen; Winston, Judith E.; Wüster, Wolfgang; Yanega, Douglas; Yeates, David K.; Zaher, Hussam; Zhang, Guanyang; Zhang, Zhi-Qiang; Zhou, Hong-Zhang (Journal article; Peer reviewed, 2018) -
Testing species boundaries in Scandinavian specimens of Nomada flavoguttata (Kirby, 1802) using an integrative approach
Amundsen, Morgan (Master thesis, 2023)Kleptoparasittiske bier utgjør omtrent 13% av alle verdens biearter. Deres spesialiserte økologi gjør at de er gode indikatorer på tilstanden i terrestriske økosystemer. Nomada er den største slekten av kleptoparasitiske ... -
Testing species boundaries in the Phyllobius pyri- vespertinus species complex using an integrative approach
Karlsen, Charlotte Egdetveit (Master thesis, 2023)Phyllobius vespertinus (Fabricius, 1792) and Phyllobius pyri (Linnaeus, 1758) (Coleoptera, Curculionidae) er to bredsnute biller hvor P. vespertinus nylig har blitt betraktet som synonym til P. pyri. Artsstatusen til P. ... -
The terrestrial invertebrate fauna of Edgeøya, Svalbard: Arctic landscape community composition reflects biogeography patterns
Ávila-Jimenéz, Maria Luisa; Solhøy, Torstein; Gwiazdowicz, Dariusz J.; Fjellberg, Arne; Dózsa‑Farkas, K.; Monson, F; De Smet, Willem H.; Stur, Elisabeth; Ekrem, Torbjørn; Coulson, Stephen James (Journal article; Peer reviewed, 2019)Colonisation and immigration history is often neglected as a factor when investigating community or species distribution patterns. However, for dynamic systems that are still reacting to large-scale environmental change, ... -
An urban Blitz with a twist: rapid biodiversity assessment using aquatic environmental DNA
Hupało, Kamil; Majaneva, Markus; Czachur, Molly Victoria; Sire, Lucas; Marquina, Daniel; Lijtmaer, Darío A.; Ivanov, Vladislav; Leidenberger, Sonja; Čiampor, Fedor; Čiamporová-Zat'ovičová, Zuzana; Mendes, Izabela S.; Desiderato, Andrea; Topstad, Lasse; Meganck, Danial Hariz Z. A.; Kjærstad, Gaute; Lin, Xiaolong; Price, Benjamin; Stevens, Mark; Ekrem, Torbjørn; Deiner, Kristy (Peer reviewed; Journal article, 2020)As global biodiversity declines, there is an increasing need to create an educated and engaged society. Having people of all ages participate in measuring biodiversity where they live helps to create awareness. Recently, ... -
The use of eDNA and DNA based methods to assess and monitor alien and doorknocker species
Ekrem, Torbjørn; Baussant, Thierry; Dunshea, Glenn John; Dunthorn, Micah; Egge, Elianne Dunthorn; Engesmo, Anette; Fossøy, Frode; Hansen, Haakon; Kistenich, Sonja; Krolicka, Adriana; Larsen, Aud; Mauvisseau, Quentin; Strand, David; Vrålstad, Trude; Westergaard, Kristine Bakke (Report. Norwegian Environment Agency;, Research report, 2023)All organisms leave traces of their DNA in the environment they live in. This environmental DNA (eDNA) can be used to detect and monitor single species as well as communities, and potentially be utilized in early warning ...