Anna Siwertsson

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Postdoktor
Telefon: 55238500

Publikasjoner

Faglige foredrag

2017

Parasites permeate a subarctic lake food web

Kevin D. Lafferty, Anna Siwertsson, Jesper A. Kuhn, Armand M. Kuris, Jenny C. Shaw, Miroslava Soldánová, Rune Knudsen, Anders Klemetsen, Per-Arne Amundsen
2015

Parallel evolution of profundal Arctic charr niches in two contrasting fish communities

Anders Klemetsen, Per-Arne Amundsen, Anna Siwertsson, Antti Eloranta, Brian Hayden, Rune Knudsen
2015

Evolutionary and ecosystem consequences of a piscivore profundal morph of Arctic charr

Rune Knudsen, Anna Siwertsson, Antti Eloranta, Andre Barbosa Frainer, Per-Arne Amundsen, Anders Klemetsen
2015

Ontogenetic trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus) morphs

Marianne Simonsen, Colin Ean Adams, Anna Siwertsson, Per-Arne Amundsen, Rune Knudsen
2015

Structure of diet specialization in Arctic charr using a network approach

Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen
2015

Ontogenetic dynamics of Diphyllobothrium infections in sympatric Arctic charr and brown trout

Eirik Haugstvedt Henriksen, Rune Knudsen, Roar Kristoffersen, Armand M Kuris, Kevin D. Lafferty, Anna Siwertsson, Per-Arne Amundsen
2015

Food web structure in a subarctic lake

Anna Siwertsson, Per-Arne Amundsen, Rune Knudsen, Roar Kristoffersen, Anders Klemetsen, Jesper Andreas Kuhn, Armand Kuris, Kevin Lafferty, Jenny Shaw
2015

Towards a holistic view of a lake food web - the importance of including benthic habitats and parasites

Anna Siwertsson, Per-Arne Amundsen, Rune Knudsen, Roar Kristoffersen, Anders Klemetsen, Jesper Andreas Kuhn, Armand Kuris, Kevin Lafferty, Jenny Shaw
2015

Økologi og forvaltning av fiskevatn – Takvatnprosjektet og resultater fra undersøkelser i seks innsjøer i Hamarøy-området

Per-Arne Amundsen, Jesper Andreas Kuhn, Anna Siwertsson, Rune Knudsen, Roar Kristoffersen
2015

Towards a holistic view of a lake food web - the importance of including benthic habitats and parasites

Anna Siwertsson, Per-Arne Amundsen, Rune Knudsen, Roar Kristoffersen, Jesper Andreas Kuhn, Anders Klemetsen, Armand Kuris, Kevin Lafferty, Jenny Shaw
2015

Lake factors promoting polymorphism in Arctic charr (Salvelinus alpinus)

Marianne Simonsen, Anna Siwertsson, Per-Arne Amundsen, Colin Ean Adams, Rune Knudsen
2014

Incipient speciation and ecosystem dynamics in subarctic lakes

Rune Knudsen, Anna Siwertsson, Per-Arne Amundsen, Kim Præbel, Anders Klemetsen
2014

The role of parasites in food-web of subarctic lakes

Rune Knudsen, Anna Siwertsson, Anders Klemetsen, Roar Kristoffersen, Per-Arne Amundsen
2014

The role of parasites in food-web topology and dynamics of subarctic lakes – background and current status

Anna Siwertsson, Rune Knudsen, Roar Kristoffersen, Anders Klemetsen, Per-Arne Amundsen
2014

Evolusjon og artsdannelse i nord-norske innsjøer

Siwertsson, Anna
2013

Incipient speciation in subarctic Scandinavia

Rune Knudsen, Kim Præbel, Anna Siwertsson, Per-Arne Amundsen
2013

Incipient ecological speciation in subarctic whitefish

Per-Arne Amundsen, Rune Knudsen, Kim Præbel, Anna Siwertsson, Shripathi Bhat, Kimmo K. Kahilainen
2013

Trophic morphology and ontogenetic differences in three sympatric Arctic charr (Salvelinus alpinus) morphs in Lake Skogsfjordvatn

Marianne Simonsen, Colin Ean Adams, Per-Arne Amundsen, Anna Siwertsson, Rune Knudsen
2013

Ecological speciation in subarctic whitefish and Arctic charr

Per-Arne Amundsen, Rune Knudsen, Kim Præbel, Anna Siwertsson, Shripathi Bhat, Anders Klemetsen
2012

Incipient ecological speciation in northern salmonids

Rune Knudsen, Kim Præbel, Anna Siwertsson, Shriphati Bath, Anders Klemetsen, Per-Arne Amundsen
2012

Evolusjon og artsdannelse i nord-norske innsjøer

Siwertsson, Anna
2012

Early speciation into dark side of life

Rune Knudsen, Sigrid Østrem Skoglund, Aslak Smalås, Kim Præbel, Anna Siwertsson, Per-Arne Amundsen
2012

Diversity of whitefish populations in northern Fennoscandia

Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen, Kim Præbel, Svein-Erik Fevolden
2011

Incipient speciation through ecological divergence in subarctic European whitefish populations

Kim Præbel, Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen
2011

Polymorphism and ecological speciation in European whitefish and Arctic charr

Per-Arne Amundsen, Rune Knudsen, Kim Præbel, Anna Siwertsson, Kimmo K. Kahilainen, Anders Klemetsen
2011

Polymorphism and ecological speciation in freshwater fish

Per-Arne Amundsen, Rune Knudsen, Kim Præbel, Anna Siwertsson, Kimmo K. Kahilainen, Anders Klemetsen
2011

Incipient ecological speciation in subarctic salmonids

Per-Arne Amundsen, Rune Knudsen, Kim Præbel, Anna Siwertsson, Anders Klemetsen
2011

Incipient speciation of whitefish and Arctic charr

Rune Knudsen, Anna Siwertsson, Kim Præbel, Per-Arne Amundsen
2011

Parallel post-glacial re-colonisation of European whitefish morphs in northern Fennoscandia

Kim Præbel, Kjartan Østbye, Anna Siwertsson, Rune Knudsen, Kimmo K. Kahilainen, Svein-Erik Fevolden, Per-Arne Amundsen
2011

Adaptive niche proliferation of polymorphic whitefish along the Kautokeino riversystem in northern Norway

Kjartan Østbye, Kim Præbel, Rune Knudsen, Anna Siwertsson, Per-Arne Amundsen
2011

Evolusjon og artsdannelse i nord-norske innsjøer

Siwertsson, Anna
2010

Incipient speciation and adaptive radiation in fishes from northern Scandinavia

Rune Knudsen, Anna Siwertsson, Kim Præbel, Per-Arne Amundsen
2010

Resource polymorphism and incipient speciation in Arctic charr (Salvelinus alpinus) from a subarctic lake

Rune Knudsen, Per-Arne Amundsen, Anna Siwertsson, Kim Præbel
2010

Incipient speciation through ecological divergence in subarctic whitefish populations

Kim Præbel, Anna Siwertsson, Rune Knudsen, Svein-Erik Fevolden, Per-Arne Amundsen
2010

Evolutionary consequences of niche subdivision - Niche partitioning beyond the limnetic-benthic dichotomy

Siwertsson, Anna
2010

Incipient ecological speciation in subarctic whitefish populations

Siwertsson, Anna
2009

Variable patterns of phenotypic diversification within whitefish (Coregounus lavaretus) populations in northern Scandinavia

Anna Siwertsson, Rune Knudsen, Kimmo K. Kahilainen, Kim Præbel, Per-Arne Amundsen
2009

High inter-individual temporal consitency of narrow niches - an early step in the speciation process?

Rune Knudsen, Anna Siwertsson, Raul Primicerio, Per-Arne Amundsen, Colin Ean Adams, Anders Klemetsen
2008

Stability of Gill Raker Numbers through Time in Subarctic Whitefish (Coregonus lavaretus (L.))Polulations

Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen
2008

Incipient ecological speciation in subarctic whitefish populations – a starting project

Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen

Poster

2018

Introduction of Mysis relicta (Mysida) reduces niche segregation between deep-water Arctic charr morphs

Rune Knudsen, Antti Eloranta, Anna Siwertsson, Mike Power, Odd Terje Sandlund
2015

Parallelism in parasite infections in two polymorphic Arctic charr populations in subarctic Norway

Rune Knudsen, Birgitte Refsnes, Anna Siwertsson, Andre Barbosa Frainer, Per-Arne Amundsen
2013

Trophic morphology and ontogenetic differences in three sympatric Arctic charr (Salvelinus alpinus) morphs in Lake Skogsfjordvatn

Marianne Simonsen, Sigrid Østrem Skoglund, Colin Ean Adams, Per-Arne Amundsen, Anna Siwertsson, Rune Knudsen
2011

A diagnostic tool for efficient genetic analysis of population structure in coregonids

Kim Præbel, Jon-Ivar Westgaard, Per-Arne Amundsen, Anna Siwertsson, Rune Knudsen, Kimmo K. Kahilainen, Svein-Erik Fevolden
2010

RESOURCE PARTITIONING BETWEEN ARCTIC CHARR, WHITEFISH AND GRAYLING ALONG ALTITUDE GRADIENT OF SUBARCTIC LAKES

Antti Eloranta, Anna Siwertsson, Rune Knudsen, Kimmo K. Kahilainen, Roger I. Jones, Kim Præbel, Per-Arne Amundsen
2010

Ongoing ecological speciation in Fennoscandian whitefish?

Rune Knudsen, Kim Præbel, Anna Siwertsson, Kimmo K. Kahilainen, Svein-Erik Fevolden, Per-Arne Amundsen

Vitenskapelige artikler (NVI)

2019

From clear lakes to murky waters – tracing the functional response of high-latitude lake communities to concurrent ‘greening’ and ‘browning’

B. Hayden, C. Harrod, S.M. Thomas, Antti Eloranta, J.‐P. Myllykangas, Anna Siwertsson, Kim Præbel, Rune Knudsen, Per-Arne Amundsen, Kimmo Kalevi Kahilainen
Ecology Letters 22 p. 807-816
2019

Introduction of Mysis relicta (Mysida) reduces niche segregation between deep-water Arctic charr morphs

Rune Knudsen, Antti Eloranta, Anna Siwertsson, Rachel A. Paterson, Michael Power, Odd Terje Sandlund
Hydrobiologia
2019

Contrasting patterns in trophic niche evolution of polymorphic Arctic charr populations in two subarctic Norwegian lakes

Paolo Maria Moccetti, Anna Siwertsson, Runar Kjær, Per-Arne Amundsen, Kim Præbel, Ana-Maria Peris Tamayo, Michael Power, Rune Knudsen
Hydrobiologia
2017

Allometric trajectories of body and head morphology in three sympatric Arctic charr (Salvelinus alpinus (L.)) morphs

Marianne Simonsen, Anna Siwertsson, Colin Ean Adams, Per-Arne Amundsen, Kim Præbel, Rune Knudsen
Ecology and Evolution 7 p. 7277-7289
2017

Molecular analyses reveal high species diversity of trematodes in a sub-Arctic lake

Miroslava Soldánová, Simona Georgieva, Jana Roháčová, Rune Knudsen, Jesper Andreas Kuhn, Eirik Haugstvedt Henriksen, Anna Siwertsson, Jenny C. Shaw, Armand M. Kuris, Per-Arne Amundsen, Tomas Scholz, Kevin D. Lafferty, Aneta Kostadinova
International Journal of Parasitology 47 p. 327-345
2016

Variation in benthic invertebrate functional trait diversity and composition across depths and seasons in a subarctic lake

André Frainer, Kristin M. Sommerseth Johansen, Anna Siwertsson, Seyed Ali Mousavi, John Edward Brittain, Anders Klemetsen, Rune Knudsen, Per-Arne Amundsen
Fundamental and Applied Limnology 188 p. 103-112
2016

Parallel evolution of profundal Arctic charr morphs in two contrasting fish communities

Rune Knudsen, Per-Arne Amundsen, Antti Eloranta, Brian Hayden, Anna Siwertsson, Anders Klemetsen
Hydrobiologia 783 p. 239-248
2016

A specialised cannibalistic Arctic charr morph in the piscivore guild of a subarctic lake

Rune Knudsen, Karl Øystein Gjelland, Antti Eloranta, Brian Hayden, Anna Siwertsson, Per-Arne Amundsen, Anders Klemetsen
Hydrobiologia 783 p. 65-78
2016

Divergence and parallelism of parasite infections in Arctic charr morphs from deep and shallow lake habitats

Anna Siwertsson, Birgitte Refsnes, André Frainer, Per-Arne Amundsen, Rune Knudsen
Hydrobiologia 783 p. 131-143
2016

Parallel phenotypic evolution of skull-bone structures and head measurements of Arctic charr morphs in two subarctic lakes

Elena Saltykova, Anna Siwertsson, Rune Knudsen
Environmental Biology of Fishes 100 p. 137-148
2015

Morphological divergence between three Arctic charr morphs - the significance of the deep-water environment

Sigrid Østrem Skoglund, Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen
Ecology and Evolution 5 p. 3114-3129
2015

Ontogenetic dynamics of infection with Diphyllobothrium spp. cestodes in sympatric Arctic charr Salvelinus alpinus (L.) and brown trout Salmo trutta L.

Eirik Haugstvedt Henriksen, Rune Knudsen, Roar Kristoffersen, Armand M. Kuris, Kevin D. Lafferty, Anna Siwertsson, Per-Arne Amundsen
Hydrobiologia 783 p. 37-46
2014

Similar patterns of individual niche use are revealed by different time-integrated trophic tracers (stable isotopes and parasites)

Rune Knudsen, Anna Siwertsson, Colin Ean Adams, Jason Newton, Per-Arne Amundsen
Ecology of Freshwater Fish 23 p. 259-268
2013

A diagnostic tool for efficient analysis of the population structure, hybridization and conservation status of European whitefish (Coregonus lavaretus (L.)) and vendace (C-albula (L.))

Kim Præbel, Jon-Ivar Westgaard, Per-Arne Amundsen, Anna Siwertsson, Rune Knudsen, Kimmo K. Kahilainen, Svein-Erik Fevolden
Advances in Limnology 64 p. 247-255
2013

Discrete foraging niches promote ecological, phenotypic, and genetic divergence in sympatric whitefish (Coregonus lavaretus)

Anna Siwertsson, Rune Knudsen, Kim Præbel, Colin Ean Adams, Jason Newton, Per-Arne Amundsen
Evolutionary Ecology 27 p. 547-564
2013

Parallel and non-parallel morphological divergence among foraging specialists in European whitefish (Coregonus lavaretus)

Anna Siwertsson, Rune Knudsen, Colin Ean Adams, Kim Præbel, Per-Arne Amundsen
Ecology and Evolution 3 p. 1590-1602
2013

Ecological speciation in postglacial European whitefish: rapid adaptive radiations into the littoral, pelagic, and profundal lake habitats

Kim Præbel, Rune Knudsen, Anna Siwertsson, Markku Karhunen, Kimmo K. Kahilainen, Otso Ovaskainen, Kjartan Østbye, Stefano Peruzzi, Svein-Erik Fevolden, Per-Arne Amundsen
Ecology and Evolution 3 p. 4970-4986
2012

Temporal stability in gill raker numbers of subarctic European whitefi sh populations

Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen
Advances in Limnology 63 p. 229-240
2011

Temporal stability of niche use exposes sympatric Arctic charr to alternative selection pressures

Rune Knudsen, Anna Siwertsson, Colin Ean Adams, Monica Garduño-Paz, Jason Newton, Per-Arne Amundsen
Evolutionary Ecology 25 p. 589-604
2011

The role of gill raker number variability in adaptive radiation of coregonid fish

Kimmo Kahilainen, Anna Siwertsson, Karl Øystein Gjelland, Rune Knudsen, Per-Arne Amundsen, Thomas Bøhn
Evolutionary Ecology 25 p. 573-588
2011

Sympatric diversification as influenced by ecological opportunity and historical contingency in a young species lineage of whitefish

Anna Siwertsson, Rune Knudsen, Kimmo Kahilainen, Kim Præbel, Raul Primicerio, Per-Arne Amundsen
Evolutionary Ecology Research 12 p. 929-947
2011

Dietary plasticity of Arctic charr (Salvelinus alpinus) facilitates coexistence with competitively superior European whitefish (Coregonus lavaretus)

Antti Eloranta, Anna Siwertsson, Rune Knudsen, Per-Arne Amundsen
Ecology of Freshwater Fish 20 p. 558-568
2009

Long-term responses of zooplankton to invasion by a planktivorous fish in a subarctic watercourse

Per-Arne Amundsen, Anna Siwertsson, Raul Primicerio, Thomas Bøhn
Freshwater Biology 54 p. 24-34

Rapporter og avhandlinger

2019

Test av fagsystemet for økologisk tilstand. Erfaringer fra pilotprosjekter for arktisk tundra og arktisk del av Barentshavet

Jane Uhd Jepsen, Per Arneberg, Rolf Anker Ims, Anna Siwertsson, Nigel Gilles Yoccoz
2015

Takvatnprosjektet - Forskning og kultivering av en overbefolka røyeberstand

Per-Arne Amundsen, Aslak Smalås, Rune Knudsen, Roar Kristoffersen, Anna Siwertsson, Anders Klemetsen
2012

Diversity along a speciation continuum - Ecology and morphology of northern European whitefish (Coregonus lavaretus)

Siwertsson, Anna

Populærvitenskapelige artikler

2008

Darwins fisker? Spennende evolusjon hos røye og sik

Rune Knudsen, Anna Siwertsson, Per-Arne Amundsen
Ottar 273 p. 22-29
2008

Invasjon av lagesild i Pasvikvassdraget

Per-Arne Amundsen, Karl øystein Gjelland, Anna Siwertsson, Cesilie Lien, laina h DalsbØ, Hallvard Jensen
Ottar 273 p. 30-37
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