Irja Ida Ratikainen
Om
Om meg
Jeg forsker ved Gjærevollsenteret – Et senter for framtidsanalyser av naturmangfold. Jeg har et bredt interessefelt innenfor biodiversitet, livshistorie, atferdsøkologi og evolusjonær økologi.
Jeg jobber både emiprisk og teoretisk for å svare på spørsmål om hvordan organismer tilpasser seg variable og utforutsigbare miljø. Når vi får en bedre forståelse for hvordan dyr og planter tilpasser seg variable miljø vil vi også være bedre rustet for å forutsi hvordan de vil takle et miljø i endring.
Publikasjoner
2025
-
Sekajova, Zuzana;
Fossen, Erlend Ignacio Fleck;
Rosa, Elena;
Ratikainen, Irja Ida;
Tourniaire-blum, Manon;
Lind, Martin.
(2025)
Evolution of phenotypic plasticity during environmental fluctuations.
Journal of Evolutionary Biology
Vitenskapelig artikkel
2024
-
Reitan, Berit;
Ratikainen, Irja Ida;
Bungum, Berit.
(2024)
Bruk av årshjul som modell for å utforske dyrs tilpasninger til klimaendringer.
Naturfag
Populærvitenskapelig artikkel
-
Hjermann, Tilde Katrina Slotte;
Herfindal, Ivar;
Ratikainen, Irja Ida;
Strand, Olav;
Rauset, Geir Rune.
(2024)
Individual and temporal variation in movement patterns of wild alpine reindeer and implications for disease management.
Ecography
Vitenskapelig artikkel
2023
-
Auge, Gabriela;
Hankofer, Valentin;
Groth, Martin;
Antoniou-Kourounioti, Rea;
Ratikainen, Irja Ida;
Lampei, Christian.
(2023)
Plant environmental memory: implications, mechanisms and opportunities for plant scientists and beyond.
AoB Plants
Vitenskapelig oversiktsartikkel/review
-
Fjelldal, Mari Aas;
Muller, Amandine Sophie;
Ratikainen, Irja Ida;
Stawski, Clare;
Wright, Jonathan.
(2023)
The small-bat-in-summer paradigm: Energetics and adaptive behavioural routines of bats investigated through a stochastic dynamic model.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Sekajova, Zuzana;
Fossen, Erlend Ignacio Fleck;
Rosa, Elena;
Ratikainen, Irja Ida;
Tourniaire-blum, Manon;
Bolund, Elisabeth.
(2023)
Evolution during uncorrelated environmental fluctuations: bet-hedging or phenotypic plasticity?.
BioRxiv
Vitenskapelig artikkel
2022
-
Burton, Tim;
Ratikainen, Irja Ida;
Einum, Sigurd.
(2022)
Environmental change and the rate of phenotypic plasticity.
Global Change Biology
Vitenskapelig artikkel
2021
-
Haaland, Thomas;
Wright, Jonathan;
Ratikainen, Irja Ida.
(2021)
Individual reversible plasticity as a genotype-level bet-hedging strategy.
Journal of Evolutionary Biology
Vitenskapelig artikkel
-
Hjermann, Tilde;
Ratikainen, Irja Ida;
Herfindal, Ivar;
Rauset, Geir Rune.
(2021)
Sex-specific space use patterns in wild alpine reindeer: potential consequences for disease transmission.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
2020
-
Haaland, Thomas;
Wright, Jonathan;
Ratikainen, Irja Ida.
(2020)
Generalists versus specialists in fluctuating environments: a bet-hedging perspective.
Oikos
Vitenskapelig artikkel
2019
-
Ratikainen, Irja Ida;
Kokko, Hanna.
(2019)
The coevolution of lifespan and reversible plasticity.
Nature Communications
Vitenskapelig artikkel
-
Haaland, Thomas;
Wright, Jonathan;
Ratikainen, Irja Ida.
(2019)
Bet-hedging across generations can affect the evolution of variance-sensitive strategies within generations.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Haaland, Thomas;
Wright, Jonathan;
Tufto, Jarle;
Ratikainen, Irja Ida.
(2019)
Short‐term insurance versus long‐term bet‐hedging strategies as adaptations to variable environments.
Evolution
Vitenskapelig artikkel
-
Einum, Sigurd;
Ratikainen, Irja Ida;
Wright, Jonathan;
Pelabon, Christophe;
Bech, Claus;
Jutfelt, Fredrik.
(2019)
How to quantify thermal acclimation capacity?.
Global Change Biology
Vitenskapelig artikkel
2018
-
Ratikainen, Irja Ida;
Haaland, Thomas;
Wright, Jonathan.
(2018)
Differential allocation of parental investment and the trade-off between size and number of offspring.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Stokke, Bård Gunnar;
Ratikainen, Irja Ida;
Moksnes, Arne;
Røskaft, Eivin;
Schulze-Hagen, Karl;
Leech, David I..
(2018)
Characteristics determining host suitability for a generalist parasite.
Scientific Reports
Vitenskapelig artikkel
-
Govaert, Lynn;
Fronhofer, Emanuel A.;
Lion, Sébastien;
Eizaguirre, Christophe;
Bonte, Dries;
Egas, Martijn.
(2018)
Eco-evolutionary feedbacks - theoretical models and perspectives.
Functional Ecology
Vitenskapelig artikkel
2017
-
Haaland, Thomas;
Wright, Jonathan;
Kuijper, Bram;
Ratikainen, Irja Ida.
(2017)
Differential allocation revisited: When should mate quality affect parental investment?.
The American Naturalist
Vitenskapelig artikkel
2013
-
Aronsen, Tonje;
Berglund, Anders;
Mobley, Kenyon;
Ratikainen, Irja Ida;
Rosenqvist, Gunilla.
(2013)
Sex ratio and density affect sexual seleciton in a sex-role reversed fish.
Evolution
Vitenskapelig artikkel
-
Ratikainen, Irja Ida;
Wright, Jonathan.
(2013)
Adaptive management of body mass by Siberian jays.
Animal Behaviour
Vitenskapelig artikkel
2012
-
Ratikainen, Irja Ida;
Sødal, Liv Randi Henøen;
Kazem, Anahita J.N.;
Wright, Jonathan.
(2012)
Private and public information use strategies by foraging groups of wild Siberian jays.
Animal Behaviour
Vitenskapelig artikkel
2011
-
Delgado, Maria Del Mar;
Ratikainen, Irja Ida;
Kokko, Hanna.
(2011)
Inertia: the discrepancy between individual and common good in dispersal and prospecting behaviour.
Biological Reviews
Vitenskapelig artikkel
2010
-
Ratikainen, Irja Ida;
Kokko, Hanna.
(2010)
Differential allocation and compensation: who deserves the silver spoon?.
Behavioral Ecology
Leder
-
Ratikainen, Irja Ida;
Wright, Jonathan;
Kazem, Anahita N.J..
(2010)
Social class influences degree of variance sensitivity in wild Siberian jays.
Behavioral Ecology
Vitenskapelig artikkel
-
Delgado, Maria Del Mar;
Ratikainen, Irja Ida;
Kokko, Hanna.
(2010)
Inertia: the discrepancy between individual and common good in dispersal and prospecting behaviour.
Biological Reviews
Vitenskapelig oversiktsartikkel/review
2008
-
Ratikainen, Irja Ida;
Gill, Jennifer A.;
Gunnarsson, Tómas G.;
Sutherland, W.J.;
Kokko, Hanna.
(2008)
When density dependence is not instantaneous: theoretical developments and management implications.
Ecology Letters
Vitenskapelig oversiktsartikkel/review
2007
-
Ratikainen, Irja Ida;
Panzacchi, Manuela;
Mysterud, Atle;
Odden, John;
Linnell, John D.C.;
Andersen, Reidar.
(2007)
Use of winter habitat by roe deer at a northern latitude where Eurasian lynx are present.
Journal of Zoology
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Sekajova, Zuzana;
Fossen, Erlend Ignacio Fleck;
Rosa, Elena;
Ratikainen, Irja Ida;
Tourniaire-blum, Manon;
Lind, Martin.
(2025)
Evolution of phenotypic plasticity during environmental fluctuations.
Journal of Evolutionary Biology
Vitenskapelig artikkel
-
Reitan, Berit;
Ratikainen, Irja Ida;
Bungum, Berit.
(2024)
Bruk av årshjul som modell for å utforske dyrs tilpasninger til klimaendringer.
Naturfag
Populærvitenskapelig artikkel
-
Hjermann, Tilde Katrina Slotte;
Herfindal, Ivar;
Ratikainen, Irja Ida;
Strand, Olav;
Rauset, Geir Rune.
(2024)
Individual and temporal variation in movement patterns of wild alpine reindeer and implications for disease management.
Ecography
Vitenskapelig artikkel
-
Auge, Gabriela;
Hankofer, Valentin;
Groth, Martin;
Antoniou-Kourounioti, Rea;
Ratikainen, Irja Ida;
Lampei, Christian.
(2023)
Plant environmental memory: implications, mechanisms and opportunities for plant scientists and beyond.
AoB Plants
Vitenskapelig oversiktsartikkel/review
-
Fjelldal, Mari Aas;
Muller, Amandine Sophie;
Ratikainen, Irja Ida;
Stawski, Clare;
Wright, Jonathan.
(2023)
The small-bat-in-summer paradigm: Energetics and adaptive behavioural routines of bats investigated through a stochastic dynamic model.
Journal of Animal Ecology
Vitenskapelig artikkel
-
Sekajova, Zuzana;
Fossen, Erlend Ignacio Fleck;
Rosa, Elena;
Ratikainen, Irja Ida;
Tourniaire-blum, Manon;
Bolund, Elisabeth.
(2023)
Evolution during uncorrelated environmental fluctuations: bet-hedging or phenotypic plasticity?.
BioRxiv
Vitenskapelig artikkel
-
Burton, Tim;
Ratikainen, Irja Ida;
Einum, Sigurd.
(2022)
Environmental change and the rate of phenotypic plasticity.
Global Change Biology
Vitenskapelig artikkel
-
Haaland, Thomas;
Wright, Jonathan;
Ratikainen, Irja Ida.
(2021)
Individual reversible plasticity as a genotype-level bet-hedging strategy.
Journal of Evolutionary Biology
Vitenskapelig artikkel
-
Haaland, Thomas;
Wright, Jonathan;
Ratikainen, Irja Ida.
(2020)
Generalists versus specialists in fluctuating environments: a bet-hedging perspective.
Oikos
Vitenskapelig artikkel
-
Ratikainen, Irja Ida;
Kokko, Hanna.
(2019)
The coevolution of lifespan and reversible plasticity.
Nature Communications
Vitenskapelig artikkel
-
Haaland, Thomas;
Wright, Jonathan;
Ratikainen, Irja Ida.
(2019)
Bet-hedging across generations can affect the evolution of variance-sensitive strategies within generations.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Haaland, Thomas;
Wright, Jonathan;
Tufto, Jarle;
Ratikainen, Irja Ida.
(2019)
Short‐term insurance versus long‐term bet‐hedging strategies as adaptations to variable environments.
Evolution
Vitenskapelig artikkel
-
Einum, Sigurd;
Ratikainen, Irja Ida;
Wright, Jonathan;
Pelabon, Christophe;
Bech, Claus;
Jutfelt, Fredrik.
(2019)
How to quantify thermal acclimation capacity?.
Global Change Biology
Vitenskapelig artikkel
-
Ratikainen, Irja Ida;
Haaland, Thomas;
Wright, Jonathan.
(2018)
Differential allocation of parental investment and the trade-off between size and number of offspring.
Proceedings of the Royal Society of London. Biological Sciences
Vitenskapelig artikkel
-
Stokke, Bård Gunnar;
Ratikainen, Irja Ida;
Moksnes, Arne;
Røskaft, Eivin;
Schulze-Hagen, Karl;
Leech, David I..
(2018)
Characteristics determining host suitability for a generalist parasite.
Scientific Reports
Vitenskapelig artikkel
-
Govaert, Lynn;
Fronhofer, Emanuel A.;
Lion, Sébastien;
Eizaguirre, Christophe;
Bonte, Dries;
Egas, Martijn.
(2018)
Eco-evolutionary feedbacks - theoretical models and perspectives.
Functional Ecology
Vitenskapelig artikkel
-
Haaland, Thomas;
Wright, Jonathan;
Kuijper, Bram;
Ratikainen, Irja Ida.
(2017)
Differential allocation revisited: When should mate quality affect parental investment?.
The American Naturalist
Vitenskapelig artikkel
-
Aronsen, Tonje;
Berglund, Anders;
Mobley, Kenyon;
Ratikainen, Irja Ida;
Rosenqvist, Gunilla.
(2013)
Sex ratio and density affect sexual seleciton in a sex-role reversed fish.
Evolution
Vitenskapelig artikkel
-
Ratikainen, Irja Ida;
Wright, Jonathan.
(2013)
Adaptive management of body mass by Siberian jays.
Animal Behaviour
Vitenskapelig artikkel
-
Ratikainen, Irja Ida;
Sødal, Liv Randi Henøen;
Kazem, Anahita J.N.;
Wright, Jonathan.
(2012)
Private and public information use strategies by foraging groups of wild Siberian jays.
Animal Behaviour
Vitenskapelig artikkel
-
Delgado, Maria Del Mar;
Ratikainen, Irja Ida;
Kokko, Hanna.
(2011)
Inertia: the discrepancy between individual and common good in dispersal and prospecting behaviour.
Biological Reviews
Vitenskapelig artikkel
-
Ratikainen, Irja Ida;
Kokko, Hanna.
(2010)
Differential allocation and compensation: who deserves the silver spoon?.
Behavioral Ecology
Leder
-
Ratikainen, Irja Ida;
Wright, Jonathan;
Kazem, Anahita N.J..
(2010)
Social class influences degree of variance sensitivity in wild Siberian jays.
Behavioral Ecology
Vitenskapelig artikkel
-
Delgado, Maria Del Mar;
Ratikainen, Irja Ida;
Kokko, Hanna.
(2010)
Inertia: the discrepancy between individual and common good in dispersal and prospecting behaviour.
Biological Reviews
Vitenskapelig oversiktsartikkel/review
-
Ratikainen, Irja Ida;
Gill, Jennifer A.;
Gunnarsson, Tómas G.;
Sutherland, W.J.;
Kokko, Hanna.
(2008)
When density dependence is not instantaneous: theoretical developments and management implications.
Ecology Letters
Vitenskapelig oversiktsartikkel/review
-
Ratikainen, Irja Ida;
Panzacchi, Manuela;
Mysterud, Atle;
Odden, John;
Linnell, John D.C.;
Andersen, Reidar.
(2007)
Use of winter habitat by roe deer at a northern latitude where Eurasian lynx are present.
Journal of Zoology
Vitenskapelig artikkel
Rapport
-
Hjermann, Tilde;
Ratikainen, Irja Ida;
Herfindal, Ivar;
Rauset, Geir Rune.
(2021)
Sex-specific space use patterns in wild alpine reindeer: potential consequences for disease transmission.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Formidling
2025
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Vitenskapelig foredragFjelldal, Mari Aas; Ratikainen, Irja Ida; Eldegard, Katrine; Lilley, Thomas. (2025) Conference presentation: The small-bat-in-autumn - simulating prehibernation fattening in bats across latitudes. The 20th International Bat Research Conference , Cairns 2025-08-06 -
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IntervjuBrandslet, Steinar; Ratikainen, Irja Ida. (2025) Nei, grevlingen biter ikke til det knaser. Gemini Gemini [null] 2025-09-26
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IntervjuAas, Vilde Aardahl; Ratikainen, Irja Ida. (2025) Vinteren blir kortere: – Dyrene forstår ikke helt hva som skjer. https://ung.forskning.no/ https://ung.forskning.no/ [null] 2025-01-19
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IntervjuGuttormsgaard, Hanna Enger; Ratikainen, Irja Ida. (2025) Dyr blir forvirra av klimaendringene. Norge i dag, NRK Norge i dag, NRK [null] 2025-02-18
2024
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Faglig foredragAlterskjær, Kari; Ratikainen, Irja Ida. (2024) Blir vinteren kortere, og hvilken betydning har det for dyrelivet?. Realfagkonferansen 2024 , Trondheim 2024-05-07 - 2024-05-07
2023
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Vitenskapelig foredragHaaland, Thomas Ray; Payo-Payo, Ana; Acker, Paul; Fortuna, Rita; Burthe, Sarah J.; Ratikainen, Irja Ida. (2023) Eco-evolutionary dynamics of partially migratory metapopulations. BOU 2023 , Nottingham, UK 2023-04-04 - 2023-04-06
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Vitenskapelig foredragHaaland, Thomas Ray; Payo-Payo, Ana; Acker, Paul; Fortuna, Rita; Burthe, Sarah J; Ratikainen, Irja Ida. (2023) Eco-evolutionary dynamics of partially migratory metapopulations. Oikos Norway 2023 , NMBU, Ås 2023-02-13 - 2023-02-15
2022
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PosterHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2022) Individual reversible plasticity as a genotype-level bet-hedging strategy. ESEB 2022 , Praha 2022-08-14 - 2022-08-19
2020
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PosterGavriilidi, Ioanna Aikaterini; Ratikainen, Irja Ida; Norgaard, Trygve; Amundsen, Trond. (2020) Quality housing overruns costs of competition: a study of two-spotted gobies. 8th International Goby Meeting , Starnberg 2020-02-26 - 2020-02-28
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Vitenskapelig foredragRatikainen, Irja Ida. (2020) The effect of environmental stochasticity on the outcome of evolution. Growth of Evolutionary Thought , Munster 2020-12-07 -
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Vitenskapelig foredragRatikainen, Irja Ida; Kokko, Hanna; Lind, Martin; Haaland, Thomas; Silva, Willian. (2020) Lifespan and co-evolution with other life history traits in variable environments. PhD Summer School ADABT 2020: a summer school for FOR2281 , Karlsrhue 2020-06-09 -
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Vitenskapelig foredragHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2020) Phenotypic plasticity as a bet-hedging strategy. EvoDemo , Røros 2020-10-06 - 2020-10-11
2019
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Faglig foredragRatikainen, Irja Ida. (2019) Biodiversity, climate change and migration. ISFiT 2019 workshop , Trondheim 2019-02-06 - 2019-02-18
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Vitenskapelig foredragHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2019) Bet-hedging affects the evolution of variance-sensitive strategies. ASAB Summer 2019 , Konstanz 2019-08-26 - 2019-08-28
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PosterHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2019) Bet-hedging affects the evolution of variance-sensitive strategies. ESEB 2019 , Turku 2019-08-19 - 2019-08-24
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PosterHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2019) Bet-hedging affects the evolution of variance-sensitive strategies. Modelling Ecology and Evolution in Zürich , Zürich 2019-06-24 - 2019-06-25
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Vitenskapelig foredragRatikainen, Irja Ida. (2019) Co-evolution of life history traits in variable environments. ESEB conference 2019 , Turku 2019-08-19 - 2019-08-24
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Vitenskapelig foredragRatikainen, Irja Ida. (2019) Partner quality effects on optimal parental investments. Departmental seminar , Bergen 2019-01-08 -
2018
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Vitenskapelig foredragGavriilidi, Ioanna Aikaterini; Ratikainen, Irja Ida; Amundsen, Trond. (2018) Territorial behaviour and competition in the two-spotted goby (Gobiusculus flavescens). Workshop "Interplay Between Parental Care and Sexual Selection" , Fiskebäckskil (SLC Kristineberg) 2018-02-26 - 2018-03-03
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Vitenskapelig foredragRatikainen, Irja Ida. (2018) Why behavioural ecology is important for evolutionary ecologists. Visit to UiB 2018-08-31 -
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PosterRatikainen, Irja Ida; Kokko, Hanna. (2018) The coevolution of lifespan and reversible plasticity. Evolution 2018 2018-08-19 - 2018-08-22
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PosterHaaland, Thomas; Wright, Jonathan; Tufto, Jarle; Ratikainen, Irja Ida. (2018) Variable environments and the evolution of bet-hedgers, generalists and specialists. Evolution 2018 , Montpellier 2018-08-18 - 2018-08-22
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Vitenskapelig foredragBotero, Carlos A.; Haaland, Thomas; Ratikainen, Irja Ida; Wright, Jonathan. (2018) Life history determines vulnerability and capacity to adapt to more frequent and intense extreme weather events. Evolution 2018 , Montpellier 2018-08-18 - 2018-08-22
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Vitenskapelig foredragRatikainen, Irja Ida. (2018) Models of parental investment when mate quality varies. Interplay between sexual selection and parental care , Kristineberg 2018-02-26 - 2018-03-03
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Vitenskapelig foredragHaaland, Thomas; Wright, Jonathan; Tufto, Jarle; Ratikainen, Irja Ida. (2018) Variable environments and the evolution of bet-hedgers, generalists and specialists. OIKOS 2018 , Trondheim 2018-02-19 - 2018-02-22
2017
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Vitenskapelig foredragHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2017) Social decision making in a fluctuating world: A simulation model of a Producer-Scrounger foraging game. NØF 2017 , Oslo 2017-01-11 - 2017-01-13
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Vitenskapelig foredragHaaland, Thomas; Wright, Jonathan; Tufto, Jarle; Botero, Carlos A.; Ratikainen, Irja Ida. (2017) Adaptations to uncertainty: Asymmetric fitness functions and fluctuating environments. ESEB 2017 , Groningen 2017-08-20 - 2017-08-25
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Vitenskapelig foredragRatikainen, Irja Ida; Haaland, Thomas; Wright, Jonathan. (2017) Partner quality effects on optimal parental investment. Departmental seminar 2017-05-11 -
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PosterRatikainen, Irja Ida; Wright, Jonathan; Tufto, Jarle; Botero, Carlos A.. (2017) A simulation model of the evolution of transgenerational plasticity in fluctuating environments. ESEB 2017 , Groningen 2017-08-20 - 2017-08-25
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IntervjuRatikainen, Irja Ida. (2017) Vår oppmerksomhet påvirker hunders ansiktsuttrykk. www.abcnyheter.no www.abcnyheter.no [null] 2017-10-29
2016
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IntervjuRatikainen, Irja Ida; Grosvold, Roger. (2016) Slik kan Trofast finne veien hjem uten GPS. abc nyheter abc nyheter [null] 2016-05-20
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Vitenskapelig foredragRatikainen, Irja Ida; Haaland, Thomas; Wright, Jonathan. (2016) Differential parental allocation to offspring size vs number. ISBE 2016 , Exeter 2016-07-28 - 2016-08-03
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Faglig foredragRatikainen, Irja Ida. (2016) Hva dyrene gjør og bør gjøre når verden rundt dem er mer eller mindre uforutsigbar. fagdag i Foreningen Norske Etologer , Trondheim 2016-03-12 -
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Vitenskapelig foredragHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2016) A General Stochastic Dynamic Model of the Differential Allocation Hypothesis. ISBE2016 , University of Exeter 2016-07-28 - 2016-08-03
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Vitenskapelig foredragHaaland, Thomas; Wright, Jonathan; Ratikainen, Irja Ida. (2016) Differential Allocation - A New Theoretical Framework. EMPSEB22 - European Meeting of PhD Students in Evolutionary Biology , Gotland 2016-09-11 - 2016-09-16
2015
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Vitenskapelig foredragRatikainen, Irja Ida; Haaland, Thomas Ray; Wright, Jonathan. (2015) A general stochastic dynamic model of the differential allocation hypothesis. Mathematical Models in Ecology and Evolution 2015 , Paris 2015-07-07 - 2015-07-11
2014
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Vitenskapelig foredragRatikainen, Irja Ida; Wright, Jonathan. (2014) Adaptations to stochasticity at multiple levels. CBD Workshop on 'Evolution in Stochastic Environments' , Trondheim 2014-01-13 - 2014-01-15
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Vitenskapelig foredragRatikainen, Irja Ida; Wright, Jonathan. (2014) Variance sensitivity and other adaptations to variable environments. Visit to the "Modeling Animal Decisions" group 2014-10-20 - 2014-10-22
2012
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PosterRatikainen, Irja Ida; Wright, Jonathan. (2012) Adaptive Management of Individual Body Mass in Wild Groups of Siberian Jays. 14th Congress of the International Society for Behavioral Ecology , University of Lund 2012-08-12 - 2012-08-18
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Vitenskapelig foredragWright, Jonathan; Ratikainen, Irja Ida. (2012) Adaptations to Environmental Stochasticity. Departmental Seminar , Department of Biology, University of Jerusalem 2012-11-06 - 2012-11-06
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Vitenskapelig foredragWright, Jonathan; Ratikainen, Irja Ida. (2012) Adaptations to Environmental Stochasticity. Departmental Seminar , University of Haifa 2012-10-24 - 2012-10-24
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Vitenskapelig foredragWright, Jonathan; Ratikainen, Irja Ida. (2012) Adaptive Responses to Environmental Stochasticity. Departmental Seminar , University of Bern 2012-04-25 - 2012-04-25
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Vitenskapelig foredragWright, Jonathan; Ratikainen, Irja Ida. (2012) Adaptive Responses to Environmental Stochasticity. 14th Congress of the International Society for Behavioral Ecology , University of Lund 2012-08-12 - 2012-08-18
2010
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Vitenskapelig foredragRatikainen, Irja Ida; Sødal, Liv Randi Henøen; Wright, Jonathan; Kazem, Anahita J.N.. (2010) Optimal sampling, private and public information use in foraging by wild Siberian Jays. ISBE 2010 , Perth 2010-09-26 - 2010-10-02
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PosterRatikainen, Irja Ida; Kokko, Hanna. (2010) POPULATION CONSEQUENCES OF PROSPECTING BEHAVIOUR. CCB 2010 Sustainable conservation , Trondheim 2010-03-15 - 2010-03-18
2008
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Vitenskapelig foredragRatikainen, Irja Ida; Wright, Jonathan; Kazem, Anahita N.J.. (2008) Social class influences variance-sensitivity in wild Siberian jays: gambling to survive vs to reproduce?. ISBE (12th congress of the International Society for Behavioral Ecology) , Cornell University 2008-08-09 - 2008-08-15
2007
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PosterRatikainen, Irja Ida; Kokko, Hanna. (2007) Possible population consequences of evolution of prospecting behaviour. ESEB (The 11th Congress of The European Society for Evolutionary Biology) 2007-08-20 - 2007-08-25
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Faglig foredragRatikainen, Irja Ida; Grønningsæter, Eirik. (2007) Lavskrika - Nepotisten i gammelskogen. foredrag i NOF , Suhmhust, Trondheim 2007-11-06 - 2007-11-06